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1

New LED light sources and lamps for general illumination  

E-Print Network (OSTI)

of light source compared to traditional light sources like incandescent bulbs and fluorescent tubes bulb. LEDs emit colored light with a narrow spectral band of 20-30 nm, colors covering the spectralNew LED light sources and lamps for general illumination Carsten Dam-Hansen, Birgitte Thestrup

2

Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps  

Science Conference Proceedings (OSTI)

Creation of light for work, socializing, and general illumination is a fundamental application of technology around the world. For those who lack access to electricity, an emerging and diverse range of LED based lighting products hold promise for replacing and/or augmenting their current fuel-based lighting sources that are costly and dirty. Along with analysis of environmental factors, economic models for total cost-ofownership of LED lighting products are an important tool for studying the impacts of these products as they emerge in markets of developing countries. One important metric in those models is the minimum illuminance demanded by end-users for a given task before recharging the lamp or replacing batteries. It impacts the lighting service cost per unit time if charging is done with purchased electricity, batteries, or charging services. The concept is illustrated in figure 1: LED lighting products are generally brightest immediately after the battery is charged or replaced and the illuminance degrades as the battery is discharged. When a minimum threshold level of illuminance is reached, the operational time for the battery charge cycle is over. The cost to recharge depends on the method utilized; these include charging at a shop at a fixed price per charge, charging on personal grid connections, using solar chargers, and purchasing dry cell batteries. This Research Note reports on the observed"charge-triggering" illuminance level threshold for night market vendors who use LED lighting products to provide general and task oriented illumination. All the study participants charged with AC power, either at a fixed-price charge shop or with electricity at their home.

Johnstone, Peter; Jacobson, Arne; Mills, Evan; Radecsky, Kristen

2009-03-21T23:59:59.000Z

3

Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps  

E-Print Network (OSTI)

the economics of fuel-based and LED lighting technology fordata logger equipped rechargeable LED lamps, monitoring theadoption of the LED lamps, and a follow-up survey. 1 Figure

Johnstone, Peter

2009-01-01T23:59:59.000Z

4

Observed Minimum Illuminance Threshold for Night Market Vendors in Kenya who use LED Lamps  

E-Print Network (OSTI)

for Small Businesses in Kenya." Lumina Project Technicalfor Night Market Vendors in Kenya who use LED Lamps Petermany people and businesses in Kenya who participated in this

Johnstone, Peter

2009-01-01T23:59:59.000Z

5

Table lamp with dynamically controlled lighting distribution and uniformly illuminated luminous shade  

DOE Patents (OSTI)

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) or other lamps arranged vertically, i.e. one lamp above the other, with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum ensures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. In a particular configuration, the reflective septum is bowl shaped, with the upper CFL sitting in the bowl, and a luminous shade hanging down from the bowl. The lower CFL provides both task lighting and uniform shade luminance. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. However, other types of lamps, including incandescent, halogen, and LEDs can also be used in the fixture. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2002-01-01T23:59:59.000Z

6

Solid-state semiconductors are better alternatives to arc-lamps for efficient and uniform illumination in minimal access surgery  

E-Print Network (OSTI)

of technical and ergonomic limitations. White light-emitting diodes (LEDs) are energy-efficient solid- state Illumination Á Light-emitting diode Á Minimal access surgery Á Solid-state semiconductor In the 1950s

Rosso, Lula

7

Aperture lamp  

DOE Patents (OSTI)

A discharge lamp includes means for containing a light emitting fill, the fill being capable of absorbing light at one wavelength and re-emitting the light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill; means for exciting the fill to cause the fill to emit light; and means for reflecting some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length. Another discharge lamp includes an envelope; a fill which emits light when excited disposed in the envelope; a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light; and a reflective ceramic structure disposed around the envelope and defining an light emitting opening, wherein the structure comprises a sintered body built up directly on the envelope and made from a combination of alumina and silica.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD)

2003-01-01T23:59:59.000Z

8

LED Exit Signs Tech Sheet Final Version  

NLE Websites -- All DOE Office Websites (Extended Search)

SAVE ENERGY, MONEY AND PREVENT POLLUTION WITH LIGHT-EMITTING DIODE (LED) EXIT SIGNS Illuminated exit signs are an important and legally required safety feature in your facility. In...

9

Exploration of illumination concepts for underground coal mines. Appendix E. Electronic ballast for the Lucalox high pressure sodium lamp. Final report  

SciTech Connect

The report documents the results of an investigation to develop solid-state ballasts for Lucalox high-pressure sodium lamps. The ballasts were to be used in the modified and new portable and machine-mounted lighting systems designed by the Crouse-Hinds Co., per tasks I through IV of Contract No. H022065.

1976-07-20T23:59:59.000Z

10

Emergency Exit Maps | Stanford Synchrotron Radiation Lightsource  

NLE Websites -- All DOE Office Websites (Extended Search)

Emergency Exit Maps SSRL Exit Maps Exit map 219 exit map trailer 274 exit map 450 trailers exit map trailer 271 exit map trailer 270 exit map trailer 294 exit maps 118 & 117 exit...

11

Lamp Divisions  

Office of Legacy Management (LM)

--- --- /A;; i :' r%i;in~house ilEc;' i:Z3:~cra:ion Lamp Divisions , _.. (I +i. 0 :,,,rg. . I . . -= i?e p/q! qe)-' &se pw E.rcale?l iev, Je!sey 07m March 20, 1 gs? ::r . J. A. Jones I ti. 5. Muclear Regulatory Commission .> = ..- haterials Licensing Branch -s - ,.I, - - Division of Fuel Cycle and hateri al Safety LY. , $2 - _ . ' -' . 3 _- - Yeshington, C. C. 2@555 - :_ :--, =-- -- .-?J -.: y...., : :- 7 Dear Mr. Jones : y-- --, ? . *I 2=15 2 r; X -P The following is our final report of the decontamination efZor?s takz in our Bui Iding 7 basement and wi 11 also serve to update our report i& November 12, 1980. As stated in NRC' s report of December 22, 1983, two closeout inspect ions were conducted by your King of Prussia off i ce on November 21 and December 2,

12

LED lamp  

SciTech Connect

There is herein described a lamp for providing white light comprising a plurality of light sources positioned on a substrate. Each of said light sources comprises a blue light emitting diode (LED) and a dome that substantially covers said LED. A first portion of said blue light from said LEDs is transmitted through said domes and a second portion of said blue light is converted into a red light by a first phosphor contained in said domes. A cover is disposed over all of said light sources that transmits at least a portion of said red and blue light emitted by said light sources. The cover contains a second phosphor that emits a yellow light in response to said blue light. The red, blue and yellow light combining to form the white light and the white light having a color rendering index (CRI) of at least about 80.

Galvez, Miguel; Grossman, Kenneth; Betts, David

2013-11-12T23:59:59.000Z

13

Discharge lamp with reflective jacket  

DOE Patents (OSTI)

A discharge lamp includes an envelope, a fill which emits light when excited disposed in the envelope, a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed around the envelope and defining an opening, the reflector being configured to reflect some of the light emitted by the fill back into the fill while allowing some light to exit through the opening. The reflector may be made from a material having a similar thermal index of expansion as compared to the envelope and which is closely spaced to the envelope. The envelope material may be quartz and the reflector material may be either silica or alumina. The reflector may be formed as a jacket having a rigid structure which does not adhere to the envelope. The lamp may further include an optical clement spaced from the envelope and configured to reflect an unwanted component of light which exited the envelope back into the envelope through the opening in the reflector. Light which can be beneficially recaptured includes selected wavelength regions, a selected polarization, and selected angular components.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

2001-01-01T23:59:59.000Z

14

Computational illumination  

Science Conference Proceedings (OSTI)

The field of computational photography includes computational imaging techniques that enhance or extend the capabilities of digital photography, a combination of computer vision, computer graphics, and applied optics. Computational illumination is an ...

Matthew Turk

2010-11-01T23:59:59.000Z

15

Compact Fluorescent Lamps  

Science Conference Proceedings (OSTI)

Electric lighting constitutes approximately 21-23 % of the electric grid load in the United States. The higher energy and maintenance costs of incandescent lamps, combined with the favorable economics of high-efficiency compact fluorescent lamps (CFLs), are making CFLs the increasingly popular choice for both residential and commercial lighting. Utility incentive and rebate programs to stimulate CFL use and the beginnings of a ban on incandescent lamps are enhancing CFL penetration levels in these enviro...

2009-12-17T23:59:59.000Z

16

Jacketed lamp bulb envelope  

DOE Patents (OSTI)

A jacketed lamp bulb envelope includes a ceramic cup having an open end and a partially closed end, the partially closed end defining an aperture, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material at least partially covering a portion of the bulb not abutting the aperture. The reflective ceramic material may substantially fill an interior volume of the ceramic cup not occupied by the bulb. The ceramic cup may include a structural feature for aiding in alignment of the jacketed lamp bulb envelope in a lamp. The ceramic cup may include an external flange about a periphery thereof. One example of a jacketed lamp bulb envelope includes a ceramic cup having an open end and a closed end, a ceramic washer covering the open end of the ceramic cup, the washer defining an aperture therethrough, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material filling an interior volume of the ceramic cup not occupied by the bulb. A method of packing a jacketed lamp bulb envelope of the type comprising a ceramic cup with a lamp bulb disposed therein includes the steps of filling the ceramic cup with a flowable slurry of reflective material, and applying centrifugal force to the cup to pack the reflective material therein.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Gitsevich, Aleksandr (Gaithersburg, MD); Bass, Gary K. (Mt. Airy, MD); Dolan, James T. (Frederick, MD); Kipling, Kent (Gaithersburg, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Leng, Yongzhang (Damascus, MD); Levin, Izrail (Silver Spring, MD); Roy, Robert J. (Frederick, MD); Shanks, Bruce (Gaithersburg, MD); Smith, Malcolm (Alexandria, VA); Trimble, William C. (Columbia, MD); Tsai, Peter (Olney, MD)

2001-01-01T23:59:59.000Z

17

Fluorescent lamp ballast  

SciTech Connect

An electronic ballast is described having at least a first and second terminal for engaging the filaments of at least one fluorescent lamp which requires a breakdown voltage to ignite the lamp and a maintaining voltage for maintaining ionization therewithin, the electronic ballast comprising: a direct current voltage source; a transistor; a transformer having a primary winding separated into a first winding, a second winding, a third winding, and a fourth winding; the first winding connected between the voltage source and the first terminal; the second winding connected between the two terminals; the third winding connected between the second terminal and to both the transistor and to ground; the fourth winding connected between ground and the transistor; the lamp being parallel to the second winding when the lamp filaments engages the ballast terminals.

Ureche, A.

1987-08-25T23:59:59.000Z

18

Electronic Compact Fluorescent Lamps  

Science Conference Proceedings (OSTI)

This EPRI Technical Update addresses the fastest growing energy efficient light source the electronic compact fluorescent lamp (CFL). Business and technical market factors (Chapter 2) explain the past and future growth of the CFL market while emphasizing future technical improvements along with discussion of the importance of utility involvement in helping their customers make the switch from incandescent lamps to CFLs. The basic CFL technology is covered in Chapter 3 including test results for selected ...

2007-12-18T23:59:59.000Z

19

Magnetic fluorescent lamp  

DOE Patents (OSTI)

The radiant emission of a mercury-argon discharge in a fluorescent lamp assembly is enhanced by providing means for establishing a magnetic field with lines of force along the path of electron flow through the bulb of the lamp assembly, to provide Zeeman splitting of the ultraviolet spectral line. Optimum results are obtained when the magnetic field strength causes a Zeeman splitting of approximately 1.7 times the thermal line width.

Berman, S.M.; Richardson R.W.

1983-12-29T23:59:59.000Z

20

One piece microwave container screens for electrodeless lamps  

DOE Patents (OSTI)

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. Replacing mesh material by solid metal material as part of the screen unit significantly reduces leakage of microwave energy from the lamp. The solid section has multiple compliant fingers defined therein for engaging the periphery of a flange on the waveguide unit so that a hose clamp can easily secure the screen to the assembly. Screen units of this type having different mesh section configurations can be interchanged in the lamp assembly to produce different respective illumination patterns.

Turner, Brian (Myersville, MD); Ury, Michael (Bethesda, MD)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Fluorescent lamp ballast  

SciTech Connect

This patent describes an electronic ballast unit for a fluorescent lamp comprising: a circuit assembly having a pair of voltage input terminal and a first inductor and a capacitor in series relationship with each other to form a series resonant circuit. The circuit is adapted to be coupled to a fluorescent lamp to provide a starting voltage for the lamp; and a second inductor connected in shunt relationship to the first inductor and connected to the other input terminal. There is a core on which the first inductor and the second inductor are mounted. The core inductively couples the inductors with each other and are shaped to reduce core losses to minimize the increase of temperature of the core; the core is of a generally H-shaped configuration, and means of opposite ends of the H-shaped core to complete the magnetic flux path for each inductor, respectively.

Boyd, G.D.

1987-03-31T23:59:59.000Z

22

Max Tech and Beyond: High-Intensity Discharge Lamps  

Science Conference Proceedings (OSTI)

High-intensity discharge (HID) lamps are most often found in industrial and commercial applications, and are the light source of choice in street and area lighting, and sports stadium illumination. HID lamps are produced in three types - mercury vapor (MV), high pressure sodium (HPS) and metal halide (MH). Of these, MV and MH are considered white-light sources (although the MV exhibits poor color rendering) and HPS produces a yellow-orange color light. A fourth lamp, low-pressure sodium (LPS), is not a HID lamp by definition, but it is used in similar applications and thus is often grouped with HID lamps. With the notable exception of MV which is comparatively inefficient and in decline in the US from both a sales and installed stock point of view; HPS, LPS and MH all have efficacies over 100 lumens per watt. The figure below presents the efficacy trends over time for commercially available HID lamps and LPS, starting with MV and LPS in 1930's followed by the development of HPS and MH in the 1960's. In HID lamps, light is generated by creating an electric arc between two electrodes in an arc tube. The particles in the arc are partially ionized, making them electrically conductive, and a light-emitting 'plasma' is created. This arc occurs within the arc tube, which for most HID lamps is enclosed within an evacuated outer bulb that thermally isolates and protects the hot arc tube from the surroundings. Unlike a fluorescent lamp that produces visible light through down-converting UV light with phosphors, the arc itself is the light source in an HID lamp, emitting visible radiation that is characteristic of the elements present in the plasma. Thus, the mixture of elements included in the arc tube is one critical factor determining the quality of the light emitted from the lamp, including its correlated color temperature (CCT) and color rendering index (CRI). Similar to fluorescent lamps, HID lamps require a ballast to start and maintain stable operating conditions, and this necessitates additional power beyond that used by the lamp itself. HID lamps offer important advantages compared to other lighting technologies, making them well suited for certain applications. HID lamps can be very efficient, have long operating lives, are relatively temperature-insensitive and produce a large quantity of light from a small package. For these reasons, HID lamps are often used when high levels of illumination are required over large areas and where operating and maintenance costs must be kept to a minimum. Furthermore, if the installation has a significant mounting height, high-power HID lamps can offer superior optical performance luminaires, reducing the number of lamps required to illuminate a given area. The indoor environments best suited to HID lamps are those with high ceilings, such as those commonly found in industrial spaces, warehouses, large retail spaces, sports halls and large public areas. Research into efficacy improvements for HID lighting technologies has generally followed market demand for these lamps, which is in decline for MV and LPS, has reached a plateau for HPS and is growing for MH. Several manufacturers interviewed for this study indicated that although solid-state lighting was now receiving the bulk of their company's R&D investment, there are still strong HID lamp research programs, which concentrate on MH technologies, with some limited amount of investment in HPS for specific niche applications (e.g., agricultural greenhouses). LPS and MV lamps are no longer being researched or improved in terms of efficacy or other performance attributes, although some consider MH HID lamps to be the next-generation MV lamp. Thus, the efficacy values of commercially available MV, LPS and HPS lamps are not expected to increase in the next 5 to 10 years. MH lamps, and more specifically, ceramic MH lamps are continuing to improve in efficacy as well as light quality, manufacturability and lamp life. Within an HID lamp, the light-producing plasma must be heated to sufficiently high temperatures to achieve high efficiencie

Scholand, Michael

2012-04-01T23:59:59.000Z

23

Max Tech and Beyond: Fluorescent Lamps  

Science Conference Proceedings (OSTI)

Fluorescent lamps are the most widely used artificial light source today, responsible for approximately 70% of the lumens delivered to our living spaces globally. The technology was originally commercialized in the 1930's, and manufacturers have been steadily improving the efficacy of these lamps over the years through modifications to the phosphors, cathodes, fill-gas, operating frequency, tube diameter and other design attributes. The most efficient commercially available fluorescent lamp is the 25 Watt T5 lamp. This lamp operates at 114-116 lumens per watt while also providing good color rendering and more than 20,000 hours of operating life. Industry experts interviewed indicated that while this lamp is the most efficient in the market today, there is still a further 10 to 14% of potential improvements that may be introduced to the market over the next 2 to 5 years. These improvements include further developments in phosphors, fill-gas, cathode coatings and ultraviolet (UV) reflective glass coatings. The commercialization of these technology improvements will combine to bring about efficacy improvements that will push the technology up to a maximum 125 to 130 lumens per watt. One critical issue raised by researchers that may present a barrier to the realization of these improvements is the fact that technology investment in fluorescent lamps is being reduced in order to prioritize research into light emitting diodes (LEDs) and ceramic metal halide high intensity discharge (HID) lamps. Thus, it is uncertain whether these potential efficacy improvements will be developed, patented and commercialized. The emphasis for premium efficacy will continue to focus on T5 lamps, which are expected to continue to be marketed along with the T8 lamp. Industry experts highlighted the fact that an advantage of the T5 lamp is the fact that it is 40% smaller and yet provides an equivalent lumen output to that of a T8 or T12 lamp. Due to its smaller form factor, the T5 lamp contains less material (i.e., glass, fill gas and phosphor), and has a higher luminance, enabling fixtures to take advantage of the smaller lamp size to improve the optics and provide more efficient overall system illuminance. In addition to offering the market a high-quality efficacious light source, another strong value proposition of fluorescent lighting is its long operating life. In today's market, one manufacturer is offering fluorescent lamps that have a rated life of 79,000 hours - which represents 18 years of service at 12 hours per day, 365 days per year. These lamps, operated using a long-life ballast specified by the manufacturer, take advantage of improvements in cathode coatings, fill gas chemistry and pressure to extend service life by a factor of four over conventional fluorescent lamps. It should be noted that this service life is also longer (approximately twice as long) as today's high-quality LED products. The fluorescent market is currently focused on the T5 and T8 lamp diameters, and it is not expected that other diameters would be introduced. Although T8 is a more optimal diameter from an efficacy perspective, the premium efficiency and optimization effort has been focused on T5 lamps because they are 40% smaller than T8, and are designed to operate at a higher temperature using high-frequency electronic ballasts. The T5 lamp offers savings in terms of materials, packaging and shipping, as well as smaller fixtures with improved optical performance. Manufacturers are actively researching improvements in four critical areas that are expected to yield additional efficacy improvements of approximately 10 to 14 percent over the next five years, ultimately achieving approximately 130 lumens per watt by 2015. The active areas of research where these improvements are anticipated include: (1) Improved phosphors which continue to be developed and patented, enabling higher efficacies as well as better color rendering and lumen maintenance; (2) Enhanced fill gas - adjusting proportions of argon, krypton, neon and xenon to optimize performance, while also m

Scholand, Michael

2012-04-01T23:59:59.000Z

24

2X Incandescent Lamp Technology  

Science Conference Proceedings (OSTI)

The incandescent lamp was developed during the 1800s, largely reaching the design of the traditional incandescent lamp as we know it by the late 1800s.This lamp remained largely unchanged for years, providing most commercial and residential lighting demands into the 1950s and residential lighting into the 2000s. Asnew lighting technologies became available, the low efficacy, measured in lumens per watt, of the traditional incandescent lamp became an issue which many wanted to ...

2012-11-01T23:59:59.000Z

25

Records Management Exit Procedures | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

leave. Records Management Exit Procedures More Documents & Publications Records Management Exit Procedures Operational Plan and Desktop Reference for the Veterans...

26

Records Management Exit Procedures  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exit Procedures For Departing Federal and contractor Employees PRESERVATION OF FEDERAL RECORDS The Federal Records Act requires the Department of Energy (DOE) Records Officer to remind departing Federal and contractor employees that Federal records may not be removed from Government custody nor may they be destroyed except in accordance with a records disposition schedule that has been approved by the Archivist of the United States. The creation of adequate documentation and the preservation of Federal records are required by law and regulation (contained in 36 CFR Chapter XII). As Federal and contractor employees, you have Federal record-keeping responsibilities that are regulated by the National Archives and Records Administration (NARA) to ensure the retention and

27

Fluorescent lamp dimming adaptor kit  

SciTech Connect

An add-on fluorescent lamp dimming adaptor is described for connecting to a conventional nondimming ballast in a fluorescent lighting system, the system including a source of ac voltage. The ballast has terminals for connecting to a fluorescent lamp, the adaptor comprising: a switching module adapted to be coupled to the terminals for switching current from the lamp, the switching module being connected in parallel with the lamp to divert current from the lamp when the switching module conducts; and a level control coupled to the switching module, the level control controlling the conductive state of the switching module to vary the current in the lamp according to a dimming control signal supplied to the level control, the level control causing the switching module to switch at a frequency in the range of 300 hertz and higher during times that the lamp current is being varied.

Alley, R.P.

1987-07-21T23:59:59.000Z

28

Performance of electronic ballasts and lighting controllers with 34-W fluorescent lamps: Final report  

SciTech Connect

This study has measured the performance of energy-saving 34-watt F40, T-12, rapid-start, lite white fluorescent lamps being operated by solid-state ballasts and lighting control equipment. The performances of these lamps are compared with those of 40-watt F40, T-12 rapid-start cool white fluorescent lamp systems studied in the prior phase of this project. With the 34-watt F40 lamps and various solid-state ballasts, system efficacy ranged from 67 to 84 lumens per watt and ballast factor from 0.756 to 0.908. Average system efficacy using the 34-watt lamps exceeded that of systems using 40-watt lamps and the same solid-state ballasts by only 1 percent even though the 34-watt lamps is about 6 percent more efficacious than the 40-watt lamp. This apparent discrepancy is due to increased ballast losses when operating the 34-watt lamps. However, the system efficacy of the 34-watt lamps used with a solid-state ballast exceeded that of a 34-watt, two-lamp system using the standard core-coil ballast by as much as 29 percent. A T-8 fluorescent lamp system with a smaller lamp diameter was also included in the study. Operating this lamp with a solid-state ballast produced a high system efficacy of 90 lumens per watt, a 39 percent improvement over the efficacy of a 40-watt F40 system using the standard core-coil ballast. The use of static controllers with 34-watt F40 lamps can result in excessive flickering (46 percent) and the generation of a second harmonic as high as 96 percent of the fundamental frequency. The dynamic controllers, when used to dim the 34-watt lamps generally cannot be dimmed as low as the 40-watt lamp system without flickering. In general, the 34-watt energy-saving lamps are appropriate as a retrofit to reduce illumination levels. However, for new construction, the 40-watt F40 argon filled lamps cost less, perform better, and provide a more reliable system. 5 refs., 27 figs., 9 tabs.

Verderber, R.R.

1988-06-01T23:59:59.000Z

29

Flash Lighting with Fluorescent Lamp.  

E-Print Network (OSTI)

??A flash lighting circuit with the fluorescent lamp is designed to produce lighting flicker by means of controlling the operating frequency and the duty-ratio of (more)

Hsieh, Horng

2005-01-01T23:59:59.000Z

30

Fixture conditions affect lamp performance  

SciTech Connect

This article discusses the major parameters that affect fluorescent lamp performance under fixture conditions. These parameters include fixture type, and HVAC integration, which directly determine the minimum lamp wall temperature (MLWT), and therefore, the resulting light output of the lamp/ballast system. Experimental data is presented showing that the lumen output of the lamp/ballast system can vary by as much as 20% and that the system efficacy can vary by 10% depending upon the type of fixture and HVAC system employed. 4 refs., 5 figs., 1 tab.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.

1986-11-01T23:59:59.000Z

31

Lamp method and apparatus using multiple reflections  

DOE Patents (OSTI)

An electrodeless microwave discharge lamp includes an envelope with a discharge forming fill disposed therein which emits light, the fill being capable of absorbing light at one wavelength and re-emitting the absorbed light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill, a source of microwave energy coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed within the microwave cavity and configured to reflect at least some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD)

2001-01-01T23:59:59.000Z

32

A new optimized fluorescent lamp and ballast for low-energy general lighting applications  

SciTech Connect

A new fluorescent lamp and ballast system has been developed which minimizes system input power while maintaining light output close to values provided by conventional lamps and ballasts. The 28-WT-12 lamp designed for the new system utilizes a redesigned electrode structure which allows the lamp to be started in the rapid start manner but operated in an instant start mode to maximize the discharge efficacy (lumens/watt) while reducing lamp cathode power requirements. A matching two-lamp ballast incorporates a solid-state switching device to turn off the cathode heating circuit automatically once the lamps have started. Both lamps and ballasts are physically interchangeable with conventional equipment so that existing luminaires can be converted without luminaire, lampholder, and wiring modifications. This new lamp/ballast system can achieve efficacy values exceeding 80 lm/W--more than 25 percent better than the performance of conventional fluorescent systems of the early 1970's-along with the excellent life and reliability characteristics typical of electromagnetically ballasted systems. Economic analyses indicate that the new system is appropriate for many new commercial general lighting installations, although it is particularly suitable as a retrofit system for installations where power reductions are essential but where conversion costs must be minimized and illumination levels preserved.

Hammer, E.E.; McGowan, T.K.

1983-07-01T23:59:59.000Z

33

Inductive tuners for microwave driven discharge lamps  

DOE Patents (OSTI)

An RF powered electrodeless lamp utilizing an inductive tuner in the waveguide which couples the RF power to the lamp cavity, for reducing reflected RF power and causing the lamp to operate efficiently.

Simpson, James E. (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

34

Information Resources: LED Replacement Lamps: Current Performance...  

NLE Websites -- All DOE Office Websites (Extended Search)

incandescent lamps (e.g., A-lamps), and provided an update on ENERGY STAR criteria for LED integral replacement lamps - currently in its second draft. Robert Lingard of Pacific...

35

A projective LED dental lamp design.  

E-Print Network (OSTI)

??Halogen lamps are mostly applied as a light source to the traditional lamp for medical treatment due to its proper color temperature, but it has (more)

Chung, Yu-Lin

2011-01-01T23:59:59.000Z

36

Spectral irradiance model for tungsten halogen lamps in 340-850 nm wavelength range  

Science Conference Proceedings (OSTI)

We have developed a physical model for the spectral irradiance of 1 kW tungsten halogen incandescent lamps for the wavelength range 340-850 nm. The model consists of the Planck's radiation law, published values for the emissivity of tungsten, and a residual spectral correction function taking into account unknown factors of the lamp. The correction function was determined by measuring the spectra of a 1000 W, quartz-halogen, tungsten coiled filament (FEL) lamp at different temperatures. The new model was tested with lamps of types FEL and 1000 W, 120 V quartz halogen (DXW). Comparisons with measurements of two national standards laboratories indicate that the model can account for the spectral irradiance values of lamps with an agreement better than 1% throughout the spectral region studied. We further demonstrate that the spectral irradiance of a lamp can be predicted with an expanded uncertainty of 2.6% if the color temperature and illuminance values for the lamp are known with expanded uncertainties of 20 K and 2%, respectively. In addition, it is suggested that the spectral irradiance may be derived from resistance measurements of the filament with lamp on and off.

Ojanen, Maija; Kaerhae, Petri; Ikonen, Erkki

2010-02-10T23:59:59.000Z

37

LED Exit Signs | Open Energy Information  

Open Energy Info (EERE)

LED Exit Signs Jump to: navigation, search TODO: Add description List of LED Exit Signs Incentives Retrieved from "http:en.openei.orgwindex.php?titleLEDExitSigns&oldid38062...

38

Nonimaging optical illumination system  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source a light reflecting surface, and a family of light edge rays defined along a reference line with the reflecting surface defined in terms of the reference lines a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line, and D is a distance from a point on the reference line to the reflection surface along the desired edge ray through the point. 35 figs.

Winston, R.; Ries, H.

1998-10-06T23:59:59.000Z

39

Nonimaging optical illumination system  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source, a light reflecting surface, and a family of light edge rays defined along a reference line with the reflecting surface defined in terms of the reference line as a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line, and D is a distance from a point on the reference line to the reflection surface along the desired edge ray through the point. 35 figs.

Winston, R.; Ries, H.

1996-12-17T23:59:59.000Z

40

Solar concentrator with restricted exit angles  

DOE Patents (OSTI)

A device is provided for the collection and concentration of radiant energy and includes at least one reflective side wall. The wall directs incident radiant energy to the exit aperture thereof or onto the surface of energy absorber positioned at the exit aperture so that the angle of incidence of radiant energy at the exit aperture or on the surface of the energy absorber is restricted to desired values.

Rabl, Arnulf (Downers Grove, IL); Winston, Roland (Chicago, IL)

1978-12-19T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Applied illumination engineering  

SciTech Connect

Beginning with a thorough assessment of current lighting technologies and their operating characteristics, this hands-on reference guides one through each step of effective, energy-efficient lighting design for both indoor and outdoor applications. The introductory chapters provide a convenient assessment of a full range of light sources, including metal halide, high pressure sodium, low pressure sodium, fluorescent and incandescent lamps. The basic elements of effective lighting design are clearly detailed and illustrated, including all required calculations and example problems. Step by step guidelines enable one to insure that designs have considered all critical light loss factors, site conditions, task requirements and special lighting use demands. Specific design approaches are covered in individual chapters on industrial lighting, office lighting, merchandise lighting, and outdoor lighting applications. Lighting controls and control strategies are examined in detail, as well as effective use of retrofit devices such as ballasts, reflectors, lenses and sensors to reduce lighting costs. Maintenance and troubleshooting of lamp and fixture problems are also covered. While the primary emphasis of this book is to provide a practical desk reference for the lighting designer, the elements of theory needed to analyze and solve unfamiliar design problems and applications have been included.

Lindsey, J.L.

1991-01-01T23:59:59.000Z

42

Nonimaging optical illumination system  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source 102, a light reflecting surface 108, and a family of light edge rays defined along a reference line 104 with the reflecting surface 108 defined in terms of the reference line 104 as a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line 104, and D is a distance from a point on the reference line 104 to the reflection surface 108 along the desired edge ray through the point.

Winston, Roland (Chicago, IL); Ries, Harald (Villigen, CH)

1996-01-01T23:59:59.000Z

43

Nonimaging optical illumination system  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source 102, a light reflecting surface 108, and a family of light edge rays defined along a reference line 104 with the reflecting surface 108 defined in terms of the reference line 104 as a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line 104, and D is a distance from a point on the reference line 104 to the reflection surface 108 along the desired edge ray through the point.

Winston, Roland (Chicago, IL); Ries, Harald (Villigen PSI, CH)

1998-01-01T23:59:59.000Z

44

Nonimaging Optical Illumination System  

DOE Patents (OSTI)

A nonimaging illumination or concentration optical device. An optical device is provided having a light source, a light reflecting surface with an opening and positioned partially around the light source which is opposite the opening of the light reflecting surface. The light reflecting surface is disposed to produce a substantially uniform intensity output with the reflecting surface defined in terms of a radius vector R.sub.i in conjunction with an angle .phi..sub.i between R.sub.i, a direction from the source and an angle .theta..sub.i between direct forward illumination and the light ray reflected once from the reflecting surface. R.sub.i varies as the exponential of tan (.phi..sub.i -.theta..sub.i)/2 integrated over .phi..sub.i.

Winston, Roland (Chicago, IL)

1994-02-22T23:59:59.000Z

45

Nonimaging optical illumination system  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing a selected far field illuminance over an angular range. The optical device includes a light source 102, a light reflecting surface 108, and a family of light edge rays defined along a reference line 104 with the reflecting surface 108 defined in terms of the reference line 104 as a parametric function R(t) where t is a scalar parameter position and R(t)=k(t)+Du(t) where k(t) is a parameterization of the reference line 104, and D is a distance from a point on the reference line 104 to the reflection surface 108 along the desired edge ray through the point.

Winston, Roland (Chicago, IL); Ries, Harald (Villigen PSI, CH)

2000-01-01T23:59:59.000Z

46

Illumination Invariant Object Recognition  

E-Print Network (OSTI)

Varying illumination is a severe problem for existing face recognition algorithms. Altering the light direction from left to right, for example, causes a change of contrast in large face regions and lets most face recognition algorithms fail. Theoretical results, based on the law of incoherent light superposition, provide the solid ground on which a new illumination invariant recognition algorithm is derived. A face recognition experiment demonstrates that this algorithm indeed shows improved recognition performance even if the conditions, for which the theoretical results were derived, do not hold exactly. 1. A STATIC SCENE'S PICTURE SET UNDER VARYING LIGHTING Consider a static scene, lighted with a finite number N s of static light sources that may vary in luminance. These light sources can have arbitrary spatial extent and emit an arbitrary distribution of light. Let i 0 k denote the picture that is produced if only light source k is switched on with a unit luminance and call th...

Martin Bichsel

1995-01-01T23:59:59.000Z

47

Real illumination from virtual environments  

Science Conference Proceedings (OSTI)

We introduce a method for actively controlling the illumination in a room so that it is consistent with a virtual world. In combination with a high dynamic range display, the system produces both uniform and directional illumination at intensity levels ...

Abhijeet Ghosh; Matthew Trentacoste; Helge Seetzen; Wolfgang Heidrich

2005-06-01T23:59:59.000Z

48

Lamp bulb with integral reflector  

SciTech Connect

An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.

Levin, Izrail (Silver Spring, MD); Shanks, Bruce (Gaithersburg, MD); Sumner, Thomas L. (Wheaton, MD)

2001-01-01T23:59:59.000Z

49

Performance of electronic ballasts and other new lighting equipment: (Phase 2, The 34-watt F40 rapid start T-12 fluorescent lamp): Final report  

SciTech Connect

This study has measured the performance of energy-saving 34-watt F40, T-12, rapid-start, lite white fluorescent lamps being operated by solid-state ballasts and lighting control equipment. The performances of these lamp systems are compared with those of 40-watt F40, T-12 rapid-start cool white fluorescent lamp systems studied in the prior phase of this project. With the 34-watt F40 lamps and various solid-state ballasts, system efficacy ranged from 67 to 84 lumens per watt and ballast factor from 0.756 to 0.908. Average system efficacy using the 34-watt lamps exceeded that of systems using 40-watt lamps and the same solid-state ballasts by only 1 percent even though the 34-watt lamps is about 6 percent more efficacious than the 40-watt lamp. This apparent discrepancy is due to increased ballast losses when operating the 34-watt lamps. However, the systems efficacy of the 34-watt lamps used with a solid-state ballast exceeded that of a 34-watt, two-lamp system using the standard core-coil ballast by as much as 29 percent. A T-8 fluorescent lamp system with a smaller lamp diameter was also included in the study. Operating this lamp with a solid-state ballast produced a high system efficacy of 90 lumens per watt, a 39 percent improvement over the efficacy of a 40-watt F40 system using the standard core-coil ballast. The use of static controllers with 34-watt F40 lamps can result in excessive flickering (46 percent) and the generation of a second harmonic as high as 96 percent of the fundamental frequency. The dynamic controllers, when used to dim the 34-watt lamps generally cannot be dimmed as low as the 40-watt lamp system without flickering. In general, the 34-watt energy-saving lamps are appropriate as a retrofit to reduce illumination levels. However, for new construction, the 40-watt F40 argon filled lamps cost less, perform better, and provide a more reliable system. 5 refs., 27 figs., 9 tabs.

Verderber, R.R.; Morse, O.

1988-02-01T23:59:59.000Z

50

Energy saving controller for fluorescent lamps.  

E-Print Network (OSTI)

??Although fluorescent lamp is a very efficient lighting device in daily life, still the high harmonic distortion and low power factor cause unnecessary energy consumption. (more)

Cheong, Zhi Xiong

2010-01-01T23:59:59.000Z

51

Nonimaging Optical Illumination System  

DOE Patents (OSTI)

A nonimaging illumination optical device for producing selected intensity output over an angular range. The device includes a light reflecting surface (24, 26) around a light source (22) which is disposed opposite the aperture opening of the light reflecting surface (24, 26). The light source (22) has a characteristic dimension which is small relative to one or more of the distance from the light source (22) to the light reflecting surface (24, 26) or the angle subtended by the light source (22) at the light reflecting surface (24, 26).

Winston, Roland (Chicago, IL)

1994-08-02T23:59:59.000Z

52

ILLUMINATION RESPONSE OF CDZNTE  

Science Conference Proceedings (OSTI)

CdZnTe (CZT) semiconducting crystals are of interest for use as room temperature X- and {gamma}-ray spectrometers. Several studies have focused on understanding the various electronic properties of these materials, such as the surface and bulk resistivities and the distribution of the electric field within the crystal. Specifically of interest is how these properties are influenced by a variety of factors including structural heterogeneities, such as secondary phases (SPs) and line defects as well as environmental effects. Herein, we report the bulk current, surface current, electric field distribution and performance of a spectrometer-grade CZT crystal exposed to above band-gap energy illumination.

Teague, L.; Washington, A.; Duff, M.

2011-08-02T23:59:59.000Z

53

LED exit signs: Improved technology leads the way to energy savings  

SciTech Connect

Recent innovations in light-emitting diode (LED) exit signs may make LED signs the best choice among the energy efficient options available. In the past, LED signs have offered low power consumption, projected long lamp life, and low maintenance requirements. Now, the best of the LED signs also offer improved optical designs that reduce their already low power consumption while improving visibility and appearance, and even reduce their cost. LED exit signs are gaining market share, and E Source expects this technology to eventually dominate over incandescent, compact fluorescent, and electroluminescent signs. More research is needed, however, to confirm manufacturers` claims of 20-year operating lives for LED signs. Conservative estimates place the number of exit signs in US buildings at about 40 million. Although each sign represents a very small part of a building`s load, exit signs are ready targets for energy efficiency upgrades -- they operate continuously and most use inefficient incandescent sources. With an LED sign, annual energy and maintenance costs can be reduced by more than 90 percent compared to a typical incandescent sign. Low annual costs help to offset the LED sign`s relatively high first cost. More than 25 utilities offer DSM incentives for energy efficient exit signs, and efficient alternatives are becoming more readily available. Recent improvements in optical designs enable many LED signs to visually out perform other sources. In addition to these benefits, LED exit signs have lower life cycle cost than most other options. The biggest barrier to their success, however, is that their first cost has been considerably higher than competing technologies. LED sign prices are falling rapidly, though, because manufacturers are continually improving optical designs of the fixtures to use fewer LEDs and thus even less energy while providing better performance.

Sardinsky, R.; Hawthorne, S.

1994-12-31T23:59:59.000Z

54

Portable lamp with dynamically controlled lighting distribution  

DOE Patents (OSTI)

A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) arranged vertically with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down lighting is produced. The control system can also vary the light intensity from each CFL. The reflective septum insures that almost all the light produced by each lamp will be directed into the desired light distribution pattern which is selected and easily changed by the user. Planar compact fluorescent lamps, e.g. circular CFLs, particularly oriented horizontally, are preferable. CFLs provide energy efficiency. The lighting system may be designed for the home, hospitality, office or other environments.

Siminovitch, Michael J. (Pinole, CA); Page, Erik R. (Berkeley, CA)

2001-01-01T23:59:59.000Z

55

DuraLamp USA: Order (2010-CE-0912)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered DuraLamp USA, Inc. to pay a $2,500 civil penalty after finding DuraLamp USA had failed to certify that model PAR 30, an incandescent reflector lamp, complies with the applicable energy conservation standards.

56

Solid-state lamp with integral occupancy sensor  

E-Print Network (OSTI)

Previous work demonstrated a retrofit proximity detector for fluorescent lamps using the lamp's own stray electric fields. This paper extends the retrofit sensor system to a solid-state (LED) lamp. The design and implementation ...

Cooley, John J.

57

Split-illumination electron holography  

Science Conference Proceedings (OSTI)

We developed a split-illumination electron holography that uses an electron biprism in the illuminating system and two biprisms (applicable to one biprism) in the imaging system, enabling holographic interference micrographs of regions far from the sample edge to be obtained. Using a condenser biprism, we split an electron wave into two coherent electron waves: one wave is to illuminate an observation area far from the sample edge in the sample plane and the other wave to pass through a vacuum space outside the sample. The split-illumination holography has the potential to greatly expand the breadth of applications of electron holography.

Tanigaki, Toshiaki; Aizawa, Shinji; Suzuki, Takahiro; Park, Hyun Soon [Advanced Science Institute, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan); Inada, Yoshikatsu [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Sendai 980-8577 (Japan); Matsuda, Tsuyoshi [Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012 (Japan); Taniyama, Akira [Corporate Research and Development Laboratories, Sumitomo Metal Industries, Ltd., Amagasaki, Hyogo 660-0891 (Japan); Shindo, Daisuke [Advanced Science Institute, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan); Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Sendai 980-8577 (Japan); Tonomura, Akira [Advanced Science Institute, RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan); Okinawa Institute of Science and Technology, Graduate University, Onna-son, Okinawa 904-0495 (Japan); Central Research Laboratory, Hitachi, Ltd., Hatoyama, Saitama 350-0395 (Japan)

2012-07-23T23:59:59.000Z

58

Driver Circuit for White LED Lamps with TRIAC Dimming Control.  

E-Print Network (OSTI)

??An efficient Light Emitting Diode (LED) lamp driver circuit is proposed for retrofitting the conventionally used incandescent lamps with existing TRIAC dimmer. The dimming feature (more)

Weng, Szu-Jung

2012-01-01T23:59:59.000Z

59

Compact Fluorescent Lamps : Technologies : From the Lab to the...  

NLE Websites -- All DOE Office Websites (Extended Search)

process. (Left) Compact Fluorescent Lamp; (Right) Cover of the 'Lighting Retrofit Workbook' (Left) Compact Fluorescent Lamp (CFL) (Right) Retrofitting national parks...

60

Demonstration of Recessed Downlight Technologies: Power and Illumination Assessment  

SciTech Connect

Solid state lighting (SSL), specifically light-emitting diodes (LED), has been advancing at a rapid pace, and there are presently multiple products available that serve as direct replacements for traditional luminaires. In this demonstration, conventional recessed lights in a conference room were used to compare conventional incandescent A-lamps, incandescent reflector R-lamps, dimming compact fluorescent lamps (CFL), to an LED replacement product. The primary focus during the study was on light delivered to the task plane as provided by the power required by the lighting system. Vertical illuminance, dimming range, and color shift are also important indicators of lighting quality and are discussed in the report. The results clearly showed that LEDs, with dimming-capable drivers, are much more efficient than incandescent and CFLs. Further, LEDs provide much smoother and consistent dimming than dimmable CFLs. On the potential negative side, it is important that the dimming switch be identified as compatible with the LED driver. A wide variety of dimmer switches are capable of dimming LEDs down to 15% of full light output, while select others can be capable of dimming LEDs down to 5%. In addition, LEDs can be intensive light sources, which can result in uncomfortable glare in some applications and to some occupants. Higher ceiling (9-foot or greater) or non-specular reflectors can act to alleviate the potential for glare.

Parker, Steven A.; Beeson, Tracy A.

2009-11-20T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Royal Pacific: Order (2013-SE-33004) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

various basic models of medium base compact fluorescent lamps, ceiling fans, ceiling fan light kits, and illuminated exit signs comply with the applicable energy conservation...

62

Lamp system for uniform semiconductor wafer heating  

SciTech Connect

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO.sub.2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

Zapata, Luis E. (Livermore, CA); Hackel, Lloyd (Livermore, CA)

2001-01-01T23:59:59.000Z

63

Efficient White SSL Component for General Illumination  

SciTech Connect

Cree has developed a new, high-efficiency, low-cost, light emitting diode (LED) module that should be capable of replacing standard, halogen, fluorescent and metal halide lamps based on the total cost of ownership. White LEDs are produced by combining one or more saturated color LEDs with a phosphor or other light down-converting media to achieve white broad-band illumination. This two year project addressed LED chip, package and phosphor efficiency improvements to establish a technology platform suitable for low-cost, high-efficiency commercial luminaires. New phosphor materials with improved quantum efficiency at 'real-life' operating conditions were developed along with new package technology to improve the efficiency of warm white LED modules compared to the baseline technology. Specifically, Cree has successfully demonstrated warm white LED modules providing 540 lumens at a correlated color temperature (CCT) of 3000 K. The LED module had an efficacy of 102.8 lumens per watt (LPW) using 1 mm2 chips biased at 350 mA - a 27% improvement over the technology at project start (81 LPW at 3000K). The white modules also delivered an efficacy of 88 LPW at elevated junction temperatures of 125 C. In addition, a proof-of-concept 4-inch downlight luminaire produced a flux of 1183 lumens at a CCT of 2827 K and a color rendering index (CRI) of 80 using this project's phosphor developments.

Sean Evans

2011-01-31T23:59:59.000Z

64

LED lamp power management system and method  

DOE Patents (OSTI)

An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

2013-03-19T23:59:59.000Z

65

Long-Term Performance of Screwbase Compact Fluorescent Lamps  

Science Conference Proceedings (OSTI)

The packaging material for compact fluorescent lamps normally includes some claim regarding expected lamp lifetime. This claimed lifetime is generally not obtained through rigorous testing. This study shows how different operating cycles, components, and lamp and ballast designs affect screwbase compact fluorescent lamp (SCFL) life.

2000-04-11T23:59:59.000Z

66

High frequency inductive lamp and power oscillator  

DOE Patents (OSTI)

A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and/or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to match the driving frequency of the oscillator to a plurality of tuning states of the lamp.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Dolan, James T. (Frederick, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Leng, Yongzhang (Damascus, MD)

2000-01-01T23:59:59.000Z

67

Building Technologies Office: Fluorescent and Incandescent Lamps Public  

NLE Websites -- All DOE Office Websites (Extended Search)

Fluorescent and Fluorescent and Incandescent Lamps Public Meeting to someone by E-mail Share Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on Facebook Tweet about Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on Twitter Bookmark Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on Google Bookmark Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on Delicious Rank Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on Digg Find More places to share Building Technologies Office: Fluorescent and Incandescent Lamps Public Meeting on AddThis.com... About Standards & Test Procedures Implementation, Certification & Enforcement

68

United Illuminating | Open Energy Information  

Open Energy Info (EERE)

Illuminating Illuminating Jump to: navigation, search Logo: United Illuminating Name United Illuminating Address 157 Church St Place New Haven, Connecticut Zip 06510 Sector Services Product Green Power Marketer Website http://www.uinet.com/ Coordinates 41.3073289°, -72.9247896° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.3073289,"lon":-72.9247896,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

69

Defeating eavesdropping with quantum illumination  

E-Print Network (OSTI)

Quantum illumination is a paradigm for using entanglement to gain a performance advantage-in comparison with classical-state systems of the same optical power-over lossy, noisy channels that destroy entanglement. Previous ...

Xu, Wenbang

2012-01-01T23:59:59.000Z

70

Facial feature detection under various illuminations  

Science Conference Proceedings (OSTI)

An efficient and robust method to locate eyes and lip corners under various illumination conditions is presented in this paper. First, a global illumination balance method is presented to compensate for variations in illumination and accentuate facial ...

Jingying Chen; Bernard Tiddeman

2007-11-01T23:59:59.000Z

71

High frequency inductive lamp and power oscillator  

DOE Patents (OSTI)

A high frequency inductively coupled electrodeless lamp includes an excitation coil with an effective electrical length which is less than one half wavelength of a driving frequency applied thereto, preferably much less. The driving frequency may be greater than 100 MHz and is preferably as high as 915 MHz. Preferably, the excitation coil is configured as a non-helical, semi-cylindrical conductive surface having less than one turn, in the general shape of a wedding ring. At high frequencies, the current in the coil forms two loops which are spaced apart and parallel to each other. Configured appropriately, the coil approximates a Helmholtz configuration. The lamp preferably utilizes an bulb encased in a reflective ceramic cup with a pre-formed aperture defined therethrough. The ceramic cup may include structural features to aid in alignment and I or a flanged face to aid in thermal management. The lamp head is preferably an integrated lamp head comprising a metal matrix composite surrounding an insulating ceramic with the excitation integrally formed on the ceramic. A novel solid-state oscillator preferably provides RF power to the lamp. The oscillator is a single active element device capable of providing over 70 watts of power at over 70% efficiency. Various control circuits may be employed to adjust the driving frequency of the oscillator.

MacLennan, Donald A. (Gaithersburg, MD); Dymond, Jr., Lauren E. (North Potomac, MD); Gitsevich, Aleksandr (Montgomery Village, MD); Grimm, William G. (Silver Spring, MD); Kipling, Kent (Gaithersburg, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Ola, Samuel A. (Silver Spring, MD); Simpson, James E. (Gaithersburg, MD); Trimble, William C. (Columbia, MD); Tsai, Peter (Olney, MD); Turner, Brian P. (Damascus, MD)

2001-01-01T23:59:59.000Z

72

Energy Cost Calculator for Compact Fluorescent Lamps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Compact Fluorescent Lamps Compact Fluorescent Lamps Energy Cost Calculator for Compact Fluorescent Lamps October 8, 2013 - 2:18pm Addthis This tool calculates the payback period for your calc retrofit project. Modify the default values to suit your project requirements. Existing incandescent lamp wattage Watts Incandescent lamp cost dollars Incandescent lamp life 1000 hours calc wattage Watts calc cost dollars calc life (6000 hours for moderate use, 10000 hours for high use) 8000 hours Number of lamps in retrofit project Hours operating per week hours Average cost of electricity 0.06 $/kWh Relamper labor costs $/hr Time taken to retrofit all lamps in this project min Time taken to relamp one lamp min Type of Relamping Practiced: Group Relamping: Calculate Simple Payback Period months

73

Stress Testing of the Philips 60W Replacement Lamp L Prize Entry  

SciTech Connect

The Pacific Northwest National Laboratory, operated by Battelle for the U.S. Department of Energy, worked with Intertek to develop a procedure for stress testing medium screw-base light sources. This procedure, composed of alternating stress cycles and performance evaluation, was used to qualitatively compare and contrast the durability and reliability of the Philips 60W replacement lamp L Prize entry with market-proven compact fluorescent lamps (CFLs) with comparable light output and functionality. The stress cycles applied simultaneous combinations of electrical, thermal, vibration, and humidity stresses of increasing magnitude. Performance evaluations measured relative illuminance, x chromaticity and y chromaticity shifts after each stress cycle. The Philips L Prize entry lamps appear to be appreciably more durable than the incumbent energy-efficient technology, as represented by the evaluated CFLs, and with respect to the applied stresses. Through the course of testing, all 15 CFL samples permanently ceased to function as a result of the applied stresses, while only 1 Philips L Prize entry lamp exhibited a failure, the nature of which was minor, non-destructive, and a consequence of a known (and resolved) subcontractor issue. Given that current CFL technology appears to be moderately mature and no Philips L Prize entry failures could be produced within the stress envelope causing 100 percent failure of the benchmark CFLs, it seems that, in this particular implementation, light-emitting diode (LED) technology would be much more durable in the field than current CFL technology. However, the Philips L Prize entry lamps used for testing were carefully designed and built for the competition, while the benchmark CFLs were mass produced for retail salea distinction that should be taken into consideration. Further reliability testing on final production samples would be necessary to judge the extent to which the results of this analysis apply to production versions of the Philips L Prize entry.

Poplawski, Michael E.; Ledbetter, Marc R.; Smith, Mark

2012-04-24T23:59:59.000Z

74

Making Global Illumination User Friendly  

NLE Websites -- All DOE Office Websites (Extended Search)

Making Global Illumination User Friendly Making Global Illumination User Friendly Title Making Global Illumination User Friendly Publication Type Conference Paper LBNL Report Number LBL-37860 Year of Publication 1995 Authors Ward, Gregory J. Conference Name 6th Eurographics Workshop on Rendering Date Published 06/1995 Conference Location Dublin, Ireland Call Number LBL-37860 Abstract Global illumination researchers tend to think in terms of mesh density and sampling frequency, and their software reflects this in its user interface. Advanced rendering systems are rife with long command lines and parameters for tuning the sample densities, thresholds and other algorithm-specific variables, and the novice user is quickly lost in a sea of possibilities. This paper details a successful effort of making one such global illumination system usable by people who understand their problems, even if they do not understand the methods needed to solve them, through an assisted oracle approach. A single program is introduced to map a small set of intuitive control variables to the rendering commands and parameter settings needed to produce the desired output in a reasonable time. This new executive program then serves as the basis for a graphical user interface that is both friendly in its appearance and reliable in its performance. Finally, we conclude with some future directions for improving this interface.

75

Survivability of Electronic Compact Fluorescent Lamps  

Science Conference Proceedings (OSTI)

This EPRI Technical Report addresses the fastest growing energy efficient light source8212the electronic compact fluorescent lamp (CFL). Because some of the failure modes for screw-in CFLs are different than those for plug-in CFLs, a cursory review of the difference between the two types of CFLs is provided in the first part of Chapter 2. A broad definition of shortened-life CFLs is also provided in Chapter 2 with an emphasis on revisiting mortality curves, the 10-minute lamp start, other relevant defini...

2008-03-31T23:59:59.000Z

76

ARE CALIFORNIA SCHOOLS READY FOR THE EXIT EXAM?  

E-Print Network (OSTI)

ARE CALIFORNIA HIGH SCHOOLS READY FOR THE EXIT EXAM?Brief ARE CALIFORNIA HIGH SCHOOLS READY FOR THE EXIT EXAM?HumRRO), that California schools have made great progress in

2005-01-01T23:59:59.000Z

77

Energy Performance of Compact Fluorescent Lamps  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents the results of tests performed at the Worcester Polytechnic Institute, in contract with the EPRI Power Electronics Applications Center (PEAC), to determine the light output, power consumption, efficiency, and power factor of off-the-shelf electronic and magnetic compact fluorescent lamps.

2003-12-31T23:59:59.000Z

78

Laboratory Evaluation of LED T8 Replacement Lamp Products  

Science Conference Proceedings (OSTI)

A report on a lab setting analysis involving LED lamps intended to directly replace T8 fluorescent lamps (4') showing light output, power, and economic comparisons with other fluorescent options.

Richman, Eric E.; Kinzey, Bruce R.; Miller, Naomi J.

2011-05-23T23:59:59.000Z

79

The Effects of Table Lamp Shade Shape and Compact Fluorescent...  

NLE Websites -- All DOE Office Websites (Extended Search)

The Effects of Table Lamp Shade Shape and Compact Fluorescent Lamp Burning Position on Visual Comfort Speaker(s): Zaidi Abdullah Date: March 15, 2001 - 12:00pm Location: Bldg. 90...

80

Light Flicker in Compact Fluorescent Lamps Caused by Voltage Fluctuations  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents tests performed at the EPRI Power Electronics Applications Center (PEAC) Power Quality Test Facility to characterize the light output of an incandescent lamp and compact fluorescent lamps during voltage fluctuations.

2003-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Lumo: illumination for cel animation  

Science Conference Proceedings (OSTI)

A method is presented to approximate lighting on 2D drawings. The specific problem solved is the incorporation of 2D cel animation into live-action scenes, augmenting the existing method of drawn "rims and tones" with subtle environmental illumination. ... Keywords: cel animation, non-photorealistic rendering, sparse interpolation

Scott F. Johnston

2002-06-01T23:59:59.000Z

82

Microsoft Word - Records Management Exit Procedures  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Records Management Records Management Exit Procedures For Departing Department of Energy Federal and Contractor Employees Records Management Division Office of IT Planning, Architecture, and E-Government Office of the Chief Information Officer July 2010 2 PRESERVATION OF FEDERAL RECORDS The Federal Records Act requires the Department of Energy (DOE) Records Officer to remind departing Federal and contractor employees that Federal records may not be removed from Government custody nor may they be destroyed except in accordance with a records disposition schedule that has been approved by the Archivist of the United States. The creation of adequate documentation and the preservation of Federal records are required by law and regulation

83

Novel Nanophosphors for High Efficiency Fluorescent Lamps  

SciTech Connect

This is the Final Report of the Novel Nanophosphors for High Efficiency Fluorescent Lamps, Department of Energy (DOE). The overall goal of this three-year program is to develop novel hybrid phosphors by coating commercially available lamp phosphors with highly stable wide band-gap nanocrystalline phosphors (NCP). The prime technical approach is the development of NCP quantum-splitting phosphor (QSP) and ultra-violet (UV) emitting phosphors with quantum efficiencies exceeding that of the conventional phosphors at 185 nm. The novel hybrid phosphors will increase the efficiency of the fluorescent lamps by up to 32%, enabling total energy savings of 0.26 quads, the reduction in the U.S. energy bill by $6.5 billion and the reduction of the annual carbon emission by 4.1 billion kilogram. Our work started by investigating through modeling calculations the requirement for the particle size of the NCP. Our work to develop suitable nanocrystalline phosphors started with the known oxide quantum splitting and UV emitting phosphors. We demonstrated several synthesis techniques for the production of high quality nanocrystalline materials that crystallizes in the desired phase and with the desired particle size. In collaboration with our subcontractor we demonstrated the feasibility for the manufacture of NC phosphors. We also demonstrated novel techniques of coating the NCP on the surface of micron sized phosphors. Our chief achievement pertains to the successful testing of the coated hybrid phosphor systems in linear fluorescent lamps. In linear fluorescent lamp tests, we have demonstrated up to 7% increase in the efficacy of hybrid phosphors over the conventional (uncoated) phosphors. We have also demonstrated the improvement in the lumen maintenance of the coated phosphors. A hybrid phosphor system based on the commercial red emitting phosphor, Y{sub 2}O{sub 3}:Eu{sup 3+} did not show the anticipated improvement in lamp efficacy. We explored the reasons for this observation, which are detailed in this report. Within the program we have carried out fundamental investigations into the physical processes that determine the quantum splitting behavior of the Pr{sup 3+} ion in solids. Specifically, we have investigated the quantum splitting luminescence of this ion in the LaPO{sub 4}, SrAl{sub 12}O{sub 19} and LiLaP{sub 4}O{sub 12} host lattices. In this final report we summarize the technical work completed under the Program, summarize our findings about the performance limits of the various technologies we investigated, and outline promising paths for future work.

Alok Srivatava

2007-03-31T23:59:59.000Z

84

Controlling the vapor pressure of a mercury lamp  

DOE Patents (OSTI)

The invention described herein discloses a method and apparatus for controlling the Hg vapor pressure within a lamp. This is done by establishing and controlling two temperature zones within the lamp. One zone is colder than the other zone. The first zone is called the cold spot. By controlling the temperature of the cold spot, the Hg vapor pressure within the lamp is controlled. Likewise, by controlling the Hg vapor pressure of the lamp, the intensity and linewidth of the radiation emitted from the lamp is controlled.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1988-01-01T23:59:59.000Z

85

Controlling the vapor pressure of a mercury lamp  

DOE Patents (OSTI)

The invention described herein discloses a method and apparatus for controlling the Hg vapor pressure within a lamp. This is done by establishing and controlling two temperature zones within the lamp. One zone is colder than the other zone. The first zone is called the cold spot. By controlling the temperature of the cold spot, the Hg vapor pressure within the lamp is controlled. Likewise, by controlling the Hg vapor pressure of the lamp, the intensity and linewidth of the radiation emitted from the lamp is controlled. 2 figs.

Grossman, M.W.; George, W.A.

1988-05-24T23:59:59.000Z

86

DARK-FIELD ILLUMINATION SYSTEM  

DOE Patents (OSTI)

A means was developed for viewing objects against a dark background from a viewing point close to the light which illuminates the objects and under conditions where the back scattering of light by the objects is minimal. A broad light retro-directing member on the opposite side of the objects from the light returns direct light back towards the source while directing other light away from the viewing point. The viewing point is offset from the light and thus receives only light which is forwardly scattered by an object while returning towards the source. The object is seen, at its true location, against a dark background. The invention is particularly adapted for illuminating and viewing nuclear particle tracks in a liquid hydrogen bubble chamber through a single chamber window. (AEC)

Norgren, D.U.

1962-07-24T23:59:59.000Z

87

LED lamp color control system and method  

DOE Patents (OSTI)

An LED lamp color control system and method including an LED lamp having an LED controller 58; and a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 determines whether the LED source 80 is in a feedback controllable range, stores measured optical flux for the LED source 80 when the LED source 80 is in the feedback controllable range, and bypasses storing the measured optical flux when the LED source 80 is not in the feedback controllable range.

Gaines, James; Clauberg, Bernd; Van Erp, Josephus A.M.

2013-02-05T23:59:59.000Z

88

Lighting Group: Sources and Ballasts: LED Reflector Lamp  

NLE Websites -- All DOE Office Websites (Extended Search)

LED Reflector Lamp LED Reflector Lamp LED Reflector Lamp Objective LED reflector lamp The goal of this project is to develop a revolutionary new reflector lamp which offers many advantages over current incandescent reflector lamps, including: three times greater efficiency ten times the rated life greater optical and performance properties use of light emitting diodes (LEDs) to generate the light. Although LEDs have been commercially available since the late 1960’s, recent dramatic improvements in LED technology have led to white light devices with efficiencies that meet or exceed those of a standard incandescent lamp. This project will build upon these improvements to develop a new type of source for focusing light. Contact Information For more information on this project, please contact:

89

Lamp method and apparatus using multiple reflections  

DOE Patents (OSTI)

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible is disclosed. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture. 20 figs.

MacLennan, D.A.; Turner, B.; Kipling, K.

1999-05-11T23:59:59.000Z

90

Lamp method and apparatus using multiple reflections  

DOE Patents (OSTI)

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.

MacLennan, Donald A. (Butler, PA); Turner, Brian (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

91

Illumination Sufficiency Survey Techniques: In-situ Measurements of Lighting System Performance and a User Preference Survey for Illuminance in an Off-Grid, African Setting  

Science Conference Proceedings (OSTI)

Efforts to promote rechargeable electric lighting as a replacement for fuel-based light sources in developing countries are typically predicated on the notion that lighting service levels can be maintained or improved while reducing the costs and environmental impacts of existing practices. However, the extremely low incomes of those who depend on fuel-based lighting create a need to balance the hypothetically possible or desirable levels of light with those that are sufficient and affordable. In a pilot study of four night vendors in Kenya, we document a field technique we developed to simultaneously measure the effectiveness of lighting service provided by a lighting system and conduct a survey of lighting service demand by end-users. We took gridded illuminance measurements across each vendor's working and selling area, with users indicating the sufficiency of light at each point. User light sources included a mix of kerosene-fueled hurricane lanterns, pressure lamps, and LED lanterns.We observed illuminance levels ranging from just above zero to 150 lux. The LED systems markedly improved the lighting service levels over those provided by kerosene-fueled hurricane lanterns. Users reported that the minimum acceptable threshold was about 2 lux. The results also indicated that the LED lamps in use by the subjects did not always provide sufficient illumination over the desired retail areas. Our sample size is much too small, however, to reach any conclusions about requirements in the broader population. Given the small number of subjects and very specific type of user, our results should be regarded as indicative rather than conclusive. We recommend replicating the method at larger scales and across a variety of user types and contexts. Policymakers should revisit the subject of recommended illuminance levels regularly as LED technology advances and the price/service balance point evolves.

Alstone, Peter; Jacobson, Arne; Mills, Evan

2010-08-26T23:59:59.000Z

92

Illumination invariant face image representation using quaternions  

Science Conference Proceedings (OSTI)

Variations in illumination is a well-known affecting factor of face recognition system performance. Feature extraction is one of the principal steps on a face recognition framework, where it is possible to alleviate the illumination effects on face images. ...

Dayron Rizo-Rodrguez; Heydi Mndez-Vzquez; Edel Garca-Reyes

2010-11-01T23:59:59.000Z

93

High output lamp with high brightness  

DOE Patents (OSTI)

An ultra bright, low wattage inductively coupled electrodeless aperture lamp is powered by a solid state RF source in the range of several tens to several hundreds of watts at various frequencies in the range of 400 to 900 MHz. Numerous novel lamp circuits and components are disclosed including a wedding ring shaped coil having one axial and one radial lead, a high accuracy capacitor stack, a high thermal conductivity aperture cup and various other aperture bulb configurations, a coaxial capacitor arrangement, and an integrated coil and capacitor assembly. Numerous novel RF circuits are also disclosed including a high power oscillator circuit with reduced complexity resonant pole configuration, parallel RF power FET transistors with soft gate switching, a continuously variable frequency tuning circuit, a six port directional coupler, an impedance switching RF source, and an RF source with controlled frequency-load characteristics. Numerous novel RF control methods are disclosed including controlled adjustment of the operating frequency to find a resonant frequency and reduce reflected RF power, controlled switching of an impedance switched lamp system, active power control and active gate bias control.

Kirkpatrick, Douglas A. (Great Falls, VA); Bass, Gary K. (Mt. Airy, MD); Copsey, Jesse F. (Germantown, MD); Garber, Jr., William E. (Poolesville, MD); Kwong, Vincent H. (Vancouver, CA); Levin, Izrail (Silver Spring, MD); MacLennan, Donald A. (Gaithersburg, MD); Roy, Robert J. (Frederick, MD); Steiner, Paul E. (Olney, MD); Tsai, Peter (Olney, MD); Turner, Brian P. (Damascus, MD)

2002-01-01T23:59:59.000Z

94

Microsoft Word - Exit Brochure.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Records Management Records Management Exit Procedures For Departing Department of Energy Federal and Contractor Employees Office of IT Planning, Architecture and E-Government March 2009 Office of the Chief Information Officer 2 Preservation of Federal Records The Federal Records Act requires the Department of Energy (DOE) Records Officer to remind departing Federal and contractor employees that Federal records may not be removed from Government custody nor may they be destroyed without a records disposition schedule that has been approved by the Archivist of the United States. The creation of adequate documentation and the preservation of Federal records are required by law and regulation (contained in 36 CFR Chapter XII). As Federal and contractor employees, you have Federal record-keeping

95

High intensity discharge lamp self-adjusting ballast system sensitive to the radiant energy or heat of the lamp  

SciTech Connect

This patent describes a self-adjusting ballast system for mercury vapor, high intensity discharge lamps having outputs of 100 watts or greater, comprising: a direct current source; a lamp circuit containing a high intensity discharge lamp; sensing means for sensing the radiant energy output of the lamp; a pulse width modulator which, in response to the output of the sensing means, varies the width of the pulses that power the lamp during warm-up of the lamp; a high frequency oscillator; a DC to AC converter that converts current from the direct source to pulses of alternating current for powering the lamp, the converter comprising: at least one switch for gating current to the lamp; a switch control means, responsive to the high frequency oscillator, for controlling the switch and controlling the frequency of the alternating current pulses that power the lamp; current sensing means for sensing the current being supplied to the lamp; and current control means for limiting the current through the lamp to a predetermined safe level when the current sensed by the current sensing means exceeds a reference value.

Kuhnel, D.S.; Ottenstein, S.A.

1987-07-21T23:59:59.000Z

96

List of LED Exit Signs Incentives | Open Energy Information  

Open Energy Info (EERE)

LED Exit Signs Incentives LED Exit Signs Incentives Jump to: navigation, search The following contains the list of 72 LED Exit Signs Incentives. CSV (rows 1 - 72) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active AEP SWEPCO - Commercial and Industrial Energy Efficiency Rebate Programs (Arkansas) Utility Rebate Program Arkansas Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Building Insulation Central Air conditioners Chillers Custom/Others pending approval Duct/Air sealing Lighting Lighting Controls/Sensors Motor VFDs Motors Roofs LED Exit Signs Commercial Refrigeration Equipment Ground Source Heat Pumps Yes APS - Energy Efficiency Solutions for Business (Arizona) Utility Rebate Program Arizona Commercial

97

Employee Exit Interviews--An Important But Frequently Overlooked ...  

Science Conference Proceedings (OSTI)

... and efficiently administered exit interview program can go a long way toward ... If the employer has agreed to waive its rights in any invention and no prior...

98

DOE Systems Engineering Methodology (SEM): Stage Exit V3 | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(SDLC) used for information systems developed and maintained for the Department Of Energy DOE Systems Engineering Methodology (SEM): Stage Exit V3 More Documents &...

99

Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior |  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Published Middle East Asia Reservior Reviiew, 2006 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior Citation Crosswell Electromagnetic Resistivity Imaging: Illuminating the Reservior [Internet]. 2006. Middle East Asia Reservior Reviiew. [cited 2013/10/22]. Available from: http://www.slb.com/~/media/Files/resources/mearr/num7/illuminating_reservoir.pdf Retrieved from

100

Hybrid lighting: Illuminating our future  

SciTech Connect

Hybrid lighting is a combination of natural and artificial illumination to be used indoors for all lighting needs. Ideally, hybrid lighting is effectively indistinguishable from standard artificial lighting except in quality and cost, where it will likely be an improvement. Hybrid lighting systems are produced by a combination of four technologies: collecting natural light, generating artificial light, transporting and distributing light to where it is needed, and controlling the amounts of both natural and artificial light continuously during usage. Lighting demands a large fraction of our energy needs. If we can control or decrease this demand, we are able to accommodate societal growth without energy demand growth.

Cates, M.R.

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Hybrid electronic ballast operating the HPS lamp at constant power  

SciTech Connect

A hybrid solid-state ballast that operates high-pressure sodium (HPS) lamps at main frequency with constant power through rated life is described. The system utilizes two inductors connected in series and a bidirectional semiconductor switch connected in parallel to one of them. A lamp-starting circuit has also been included in the ballast. The static switch, with phase angle control provided by power feedback, actuates on lamp current compensating variations of the main voltage and increases of lamp arc voltage. The system offers the following: (1) increase of lamp life and system lumen maintenance; (2) power factor and total harmonic distortion of line current comparable to conventional lag ballast; and (3) operating cost savings, both in terms of energy cost and lamp replacement cost.

Kaiser, W. [Univ. de Sao Paulo (Brazil)

1998-03-01T23:59:59.000Z

102

An Exit Rule for Monetary Policy  

E-Print Network (OSTI)

This paper was originally prepared for a hearing at the House Committee on Financial Services on Unwinding Emergency Federal Reserve Liquidity Programs and Implications for Economic Recovery, where I was invited to be a witness. The hearing was cancelled because of snow. Witnesses were asked to give an assessment of whether these extraordinary measures have worked and what is an appropriate policy for unwinding them. The paper begins with my assessment and then considers a specific exit strategy. Assessment of the Extraordinary Measures Table 1 summarizes the Feds extraordinary measuresmostly special loan and securities purchase programsgoing back to 2007 when the financial crisis first flared up in the money markets. Figures 1 through 4 show how the programs have changed in size during this period, either adding to or subtracting from the Feds balance sheet. Review of Recent Developments Some of the programs, such as the Mortgage Backed Securities (MBS) purchase program and the Term Asset Backed Securities Loan Facility (TALF), have expanded [Figure 4], while others, such as the Term Auction Facility (TAF) or the SWAP facility with foreign central banks, have contracted [Figures 1 and 2]. Some programs have been closed down, including the Primary Dealers Credit Facility (PDCF), the Commercial Paper Funding Facility (CPFF), and the Asset-

John B. Taylor

2010-01-01T23:59:59.000Z

103

Compact microwave lamp having a tuning block and a dielectric located in a lamp cavity  

DOE Patents (OSTI)

A microwave lamp having a compact structure utilizing a coupling slot which has a dielectric member extending therethrough and a tuning block adjoining the coupling slot. A non-conventional waveguide is used which has about the width of a WR-284 waveguide and about the length of a WR-340 waveguide.

Simpson, James E. (Gaithersburg, MD)

2000-01-01T23:59:59.000Z

104

LED LAMP OR BULB WITH REMOTE PHOSPHOR AND DIFFUSER ...  

An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and an optical cavity. The optical cavity comprises a phosphor ...

105

Heat transfer assembly for a fluorescent lamp and fixture  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, a heat transfer structure is disclosed for reducing the minimum lamp wall temperature of a fluorescent light bulb. The heat transfer structure, constructed of thermally conductive material, extends from inside the housing to outside the housing, transferring heat energy generated from a fluorescent light bulb to outside the housing where the heat energy is dissipated to the ambient air outside the housing. Also disclosed is a method for reducing minimum lamp wall temperatures. Further disclosed is an improved lighting fixture including a lamp, a housing and the aforementioned heat transfer structure. 11 figs.

Siminovitch, M.J.; Rubenstein, F.M.; Whitman, R.E.

1992-12-29T23:59:59.000Z

106

Fluorescent lamp unit with magnetic field generating means  

DOE Patents (OSTI)

A fluorescent lamp unit having a magnetic field generating means for improving the performance of the fluorescent lamp is disclosed. In a preferred embodiment the fluorescent lamp comprises four longitudinally extending leg portions disposed in substantially quadrangular columnar array and joined by three generally U-shaped portions disposed in different planes. In another embodiment of the invention the magnetic field generating means comprises a plurality of permanent magnets secured together to form a single columnar structure disposed within a centrally located region defined by the shape of lamp envelope. 4 figs.

Grossman, M.W.; George, W.A.

1989-08-08T23:59:59.000Z

107

Development and characterization of a high CRI LED lamp.  

E-Print Network (OSTI)

??The aim of this thesis is to realize a high CRI LED lamp using the color mixing technique. We start from a high efficiency white (more)

Meneghesso , Matteo

2012-01-01T23:59:59.000Z

108

Stadiums and arenas use efficient, high wattage lamps - Today ...  

U.S. Energy Information Administration (EIA)

Other lighting types, such as light-emitting diode (LED), incandescent, and halogen lamps, are used in applications like signals, signage, ...

109

Heat transfer assembly for a fluorescent lamp and fixture  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, a heat transfer structure is disclosed for reducing the minimum lamp wall temperature of a fluorescent light bulb. The heat transfer structure, constructed of thermally conductive material, extends from inside the housing to outside the housing, transferring heat energy generated from a fluorescent light bulb to outside the housing where the heat energy is dissipated to the ambient air outside the housing. Also disclosed is a method for reducing minimum lamp wall temperatures. Further disclosed is an improved lighting fixture including a lamp, a housing and the aforementioned heat transfer structure.

Siminovitch, Michael J. (Richmond, CA); Rubenstein, Francis M. (Berkeley, CA); Whitman, Richard E. (Richmond, CA)

1992-01-01T23:59:59.000Z

110

Multifocal Multiphoton Laser-Scanning Structured Illumination ...  

Multifocal Multiphoton Laser-Scanning Structured Illumination Microscopy with Whole-Field Detection Colorado School of Mines. Contact CSM About This Technology

111

Fluorescent lamp with static magnetic field generating means  

DOE Patents (OSTI)

A fluorescent lamp wherein magnetic field generating means (e.g., permanent magnets) are utilized to generate a static magnetic field across the respective electrode structures of the lamp such that maximum field strength is located at the electrode's filament. An increase in efficacy during operation has been observed.

Moskowitz, Philip E. (Peabody, MA); Maya, Jakob (Brookline, MA)

1987-01-01T23:59:59.000Z

112

Fluorescent lamp with static magnetic field generating means  

DOE Patents (OSTI)

A fluorescent lamp wherein magnetic field generating means (e.g., permanent magnets) are utilized to generate a static magnetic field across the respective electrode structures of the lamp such that maximum field strength is located at the electrode's filament. An increase in efficacy during operation has been observed. 2 figs.

Moskowitz, P.E.; Maya, J.

1987-09-08T23:59:59.000Z

113

Convection venting lensed reflector-type compact fluorescent lamp system  

DOE Patents (OSTI)

Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures. 12 figs.

Pelton, B.A.; Siminovitch, M.

1997-07-29T23:59:59.000Z

114

An Electrical Cathode Model of a High Pressure Sodium Lamp  

Science Conference Proceedings (OSTI)

An electrical cathode model (ECM) of a high pressure sodium lamp (HPS) based on physical laws has been developed. The proposed ECM calculates the instantaneous voltage drop in a cathode sheath and the temperature distribution inside the cathode using ... Keywords: cathode model, HPS lamp ballast designs

Jose Luis Tapia; Joel O. Pacheco Sotelo; Eduardo Diaz Rodriguez; Yulia Nikolaevna Ledeneva; Rene Arnulfo Garcia Hernandez

2010-09-01T23:59:59.000Z

115

Convection venting lensed reflector-type compact fluorescent lamp system  

SciTech Connect

Disclosed herein is a fluorescent lamp housing assembly capable of providing convection cooling to the lamp and the ballast. The lens of the present invention includes two distinct portions, a central portion and an apertured portion. The housing assembly further includes apertures so that air mass is able to freely move up through the assembly and out ventilation apertures.

Pelton, Bruce A. (825 Manor Rd., El Sobrante, CA 94803); Siminovitch, Michael (829 Manor Rd., El Sobrante, CA 94803)

1997-01-01T23:59:59.000Z

116

The Jamming point street-lamp in the world of granular media  

E-Print Network (OSTI)

The Jamming of soft spheres at zero temperature, the J-point, has been extensively studied both numerically and theoretically and can now be considered as a safe location in the space of models, where a street lamp has been lit up. However, a recent work by Ikeda et al, 2013 reveals that, in the Temperature/Packing fraction parameter space, experiments on colloids are actually rather far away from the scaling regime illuminated by this lamp. Is it that the J-point has little to say about real system? What about granular media? Such a-thermal, frictional, systems are a-priori even further away from the idealized case of thermal soft spheres. In the past ten years, we have systematically investigated horizontally shaken grains in the vicinity of the Jamming transition. We discuss the above issue in the light of very recent experimental results. First, we demonstrate that the contact network exhibits a remarkable dynamics, with strong heterogeneities, which are maximum at a packing fraction phi star, distinct and smaller than the packing fraction phi dagger, where the average number of contact per particle starts to increase. The two cross-overs converge at point J in the zero mechanical excitation limit. Second, a careful analysis of the dynamics on time scales ranging from a minute fraction of the vibration cycle to several thousands of cycles allows us to map the behaviors of this shaken granular system onto those observed for thermal soft spheres and demonstrate that some light of the J-point street-lamp indeed reaches the granular universe.

Corentin Coulais; Robert P. Behringer; Olivier Dauchot

2013-05-03T23:59:59.000Z

117

DEFINING THE EFFECTIVENESS OF UV LAMPS  

Office of Scientific and Technical Information (OSTI)

ARTI-21CR/610-40030-01 ARTI-21CR/610-40030-01 DEFINING THE EFFECTIVENESS OF UV LAMPS INSTALLED IN CIRCULATING AIR DUCTWORK Final Report Date Published - November 2002 Douglas VanOsdell and Karin Foarde RTI P.O. Box 12194 Research Triangle Park, NC 27709-2194 Prepared for the AIR-CONDITIONING AND REFRIGERATION TECHNOLOGY INSTITUTE 4100 N. Fairfax Drive, Suite 200, Arlington, Virginia 22203 Distribution A - Approved for public release; further dissemination unlimited. DISCLAIMER This report was prepared as an account of work sponsored by the Air-Conditioning and Refrigeration Technology Institute (ARTI) under its "HVAC&R Research for the 21 st Century" (21-CR) program. Neither ARTI, the financial supporters of the 21-CR program, or any agency

118

Contrast between the vertical and horizontal mercury discharge lamps  

SciTech Connect

This paper discusses the thermal behavior of a high pressure mercury lamp in a horizontal position, compared with that of a vertical lamp. The model adopted is three-dimensional, steady, and powered DC. After the model validation, we analyzed temperature fields and velocities for the case of the lamp in a horizontal position by comparing it with those of a lamp in vertical position. This setting initially fixed the wall temperature equal to 1000 K. However, the morphology of the temperature profile in the case of the horizontal lamp indicates that the temperature of the wall cannot be uniform. Thus, we have, in a second time, performed an energy balance at the wall to calculate its temperature. This aims to understand the influence of convection on the thermal properties of the source.

Ben Hamida, M. B.; Helali, H.; Araoud, Z.; Charrada, K. [Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, 5019 route de Kairouan Monastir (Tunisia)

2011-06-15T23:59:59.000Z

119

Effect of filament power removal on a fluorescent lamp system  

SciTech Connect

Two techniques are used to measure the effects of removing the filament power from a two-lamp, F-40, rapid-start fluorescent lamp system. The changes are measured for a standard CBM core-coil ballast and for a solid-state ballast operating the lamp at high frequency. There is a 4 tp 6% increase in system efficacy when the filament power is removed. Removal of filament power also decreases filament temperature from 1000/sup 0/C to below 700/sup 0/C in lamps operated at 60 Hz, and from above 600/sup 0/C to 300/sup 0/C in lamps operated at high frequency. The study shows that the arc current and anode fall also determine filament temperature.

Verderber, R.R.; Morse, O.; Rubinstein, F.M.

1985-07-01T23:59:59.000Z

120

Compatibility testing of fluorescent lamp and ballast systems  

SciTech Connect

The rapid growth in the use of electronic ballasts for fluorescent lighting systems, and the corresponding increase in the number of new products and new manufacturers in the market, has raised a number of questions regarding the compatibility of the lamps and ballasts used in fluorescent systems. Because many of the new products start and operate lamps differently than previous products, the relevant American National Standards Institute requirements may no longer be adequate for addressing compatibility concerns. The impacts on system performance of the newer products of a parametric study designed to test key hypotheses regarding the impact of ballast parameters on fluorescent lamp life. In this study, samples of 4-ft T8 fluorescent lamps were operated on duty cycles of 5 min on and 5 min off, using seven different ballast types. The results of the study indicate which parameters seem to have the biggest effect on lamp life, and can be used in establishing new performance standards for fluorescent systems.

Ji, Y.; Davis, R.; O' Rourke, C.; Chui, E.W.M.

1999-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Global illumination with radiance regression functions  

Science Conference Proceedings (OSTI)

We present radiance regression functions for fast rendering of global illumination in scenes with dynamic local light sources. A radiance regression function (RRF) represents a non-linear mapping from local and contextual attributes of surface points, ... Keywords: global illumination, neural network, non-linear regression, real time rendering

Peiran Ren; Jiaping Wang; Minmin Gong; Stephen Lin; Xin Tong; Baining Guo

2013-07-01T23:59:59.000Z

122

The effects of fixture type and HVAC integration on fluorescent lamp/ballast performance  

SciTech Connect

This paper describes the effects of fixture type and lamp compartment air extract characteristics on lamp/ballast performance. A luminaire/plenum/HVAC simulator was used to measure minimum lamp wall temperature inside four fixture types while varying lamp-compartment extract conditions. Experimental data show that the lumen output of the lamp/ballast system varies by 20% and system efficacy by 10%, depending on the type of fixture and lamp-compartment extract technique employed.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.; Clark, T.A.

1986-06-01T23:59:59.000Z

123

Thermally Driven Flows at an Asymmetric Valley Exit: Observations and Model Studies at the Lech Valley Exit  

Science Conference Proceedings (OSTI)

The summertime thermal circulation in the region of an asymmetric valley exit is investigated by means of observations and high-resolution model simulations. The northeastward-oriented Alpine Lech Valley opening into the Bavarian Alpine foreland ...

Thomas Spengler; Jan H. Schween; Markus Ablinger; Gnther Zngl; Joseph Egger

2009-10-01T23:59:59.000Z

124

Plasma lighting, fiber optics, and daylight collectors: Toward the next revolution in high-efficiency illumination  

SciTech Connect

Combining three recently marketed innovations may provide the next revolution in illumination, making many other recent advances eventually obsolete. The first is plasma lighting, pioneered by Fusion Lighting Inc. of Rockville, Maryland, and first commercially applied by Hutchins International Ltd. of Mississauga, Ontario. This microwave-generated light source yields very high-quality light with efficacies at or beyond high intensity discharge (HID) lamps. The source uses no mercury, thus eliminating lamp disposal problems, and has no cathode, thereby providing very long lamp life. Using no phosphors, it also has very short start and re-strike periods, and is dimmable. The second innovation is in the distribution of light. Commercial developments in fiber optics and light guides now provide products that transfer light from a remote point and distribute it like standard light fixtures. Advances in fiber optic communications and applications to decorative lighting have supplied relatively economical systems for mounting and directing light from both electric light sources and the sun. The third advance is a result of efforts to harness daylight. Unlike architectural daylighting that directs sunlight into perimeter areas through glazing, daylight collectors are roof-mounted devices that supply light to interior and underground spaces through hollow columns and open chases. Aided by improvements and cost reductions in sun-tracking (i.e., heliostatic) controls that capture and concentrate sunlight, such collectors offer a source of free light to locations that might otherwise never receive it. When combined together, these three options could offer a centralized building lighting system that pipes lumens to distribution devices replacing many existing lamps and fixtures.

Audin, L. [Columbia Univ., New York, NY (United States)

1995-06-01T23:59:59.000Z

125

Highly Efficient Small Form Factor LED Retrofit Lamp  

SciTech Connect

This report summarizes work to develop a high efficiency LED-based MR16 lamp downlight at OSRAM SYLVANIA under US Department of Energy contract DE-EE0000611. A new multichip LED package, electronic driver, and reflector optic were developed for these lamps. At steady-state, the lamp luminous flux was 409 lumens (lm), luminous efficacy of 87 lumens per watt (LPW), CRI (Ra) of 87, and R9 of 85 at a correlated color temperature (CCT) of 3285K. The LED alone achieved 120 lumens per watt efficacy and 600 lumen flux output at 25 C. The driver had 90% electrical conversion efficiency while maintaining excellent power quality with power factor >0.90 at a power of only 5 watts. Compared to similar existing MR16 lamps using LED sources, these lamps had much higher efficacy and color quality. The objective of this work was to demonstrate a LED-based MR16 retrofit lamp for replacement of 35W halogen MR16 lamps having (1) luminous flux of 500 lumens, (2) luminous efficacy of 100 lumens per watt, (3) beam angle less than 40{sup o} and center beam candlepower of at least 1000 candelas, and (4) excellent color quality.

Steven Allen; Fred Palmer; Ming Li

2011-09-11T23:59:59.000Z

126

Covered Product Category: Compact Fluorescent Lamps | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Covered Product Category: Compact Fluorescent Lamps Covered Product Category: Compact Fluorescent Lamps Covered Product Category: Compact Fluorescent Lamps October 7, 2013 - 10:48am Addthis ENERGY STAR Qualified Products Federal Energy Management Program (FEMP) provides acquisition guidance across a variety of product categories, including compact fluorescent lamps (CFLs), which are an ENERGY STAR-qualified product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Most manufacturers display the ENERGY STAR label on complying models. For a model not displaying this label, check the manufacturer's literature to determine if it meets the efficiency requirements outlined by ENERGY STAR.

127

Information Resources: LED Replacements for Linear Fluorescent Lamps  

NLE Websites -- All DOE Office Websites (Extended Search)

Replacements for Linear Fluorescent Lamps Webcast Replacements for Linear Fluorescent Lamps Webcast In this June 20, 2011 webcast on LED products marketed as replacements for linear fluorescent lamps, Jason Tuenge of the Pacific Northwest National Laboratory (PNNL) discussed current Lighting Facts-listed products as well as products evaluated in the latest CALiPER reports. Eric Richman, also of PNNL, reported on a recently completed GATEWAY demonstration project, in which LED and fluorescent lamps were installed in a variety of recessed troffer luminaires for comparison in an office environment. The presentation concluded with a discussion of specifications listed in a newly updated technology fact sheet. View presentation slides View the text-alternative version View the webcast (WMV 16 MB) Download Windows Media Player

128

Max Tech and Beyond: High-Intensity Discharge Lamps  

E-Print Network (OSTI)

the reason industry started by developing ceramic MH lampsceramic metal halide lamps, which are the focus of industryindustry had invested in the development of very low wattage ceramic

Scholand, Michael

2012-01-01T23:59:59.000Z

129

COST EFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY BUTTONS  

E-Print Network (OSTI)

button, a 100 watt (130 volt) lamp, a 100 watt long lifeFluorescent Watt L I ltage (volts) cu ge ic in s) ative ( 1the diode energy button (83 volts) was obtained by dividing

Verderber, Rudy

2013-01-01T23:59:59.000Z

130

The LAMP QPF Products. Part I: Model Development  

Science Conference Proceedings (OSTI)

The Local AWIPS (Advanced Weather Interactive Processing System) MOS (model output statistics) Program (LAMP) quantitative precipitation forecast (QPF) system produces 122-h forecasts of precipitation over the conterminous United States. The ...

Jerome P. Charba

1998-12-01T23:59:59.000Z

131

Lattice-Based Volumetric Global Illumination  

E-Print Network (OSTI)

We describe a novel volumetric global illumination framework based on the Face-Centered Cubic (FCC) lattice. An FCC lattice has important advantages over a Cartesian lattice. It has higher packing density in the frequency domain, which translates to better sampling efficiency. Furthermore, it has the maximal possible kissing number (equivalent to the number of nearest neighbors of each site), which provides optimal 3D angular discretization among all lattices. We employ a new two-pass (illumination and rendering) global illumination scheme on an FCC lattice. This scheme exploits the angular discretization to greatly simplify the computation in multiple scattering and to minimize illumination information storage. The GPU has been utilized to further accelerate the rendering stage. We demonstrate our new framework with participating media and volume rendering with multiple scattering, where both are significantly faster than traditional techniques with comparable quality.

Feng Qiu; Fang Xu; Zhe Fan; Neophytou Neophytos; Arie Kaufman; Klaus Mueller

2007-01-01T23:59:59.000Z

132

Advanced global illumination using photon mapping  

Science Conference Proceedings (OSTI)

Photon mapping provides a practical way of efficiently simulating global illumination including interreflections, caustics, color bleeding, participating media and subsurface scattering in scenes with complicated geometry and advanced material models. ...

Wojciech Jarosz; Henrik Wann Jensen; Craig Donner

2008-08-01T23:59:59.000Z

133

Electronic Radio-Frequency (Electrodeless) Induction Lamps: A Fluorescent Technology  

Science Conference Proceedings (OSTI)

This EPRI Technical Update addresses an expanding energy efficient light source electronic radio-frequency (electrodeless) induction lamps. Business and technical market factors (Chapter 2) use the past and future growth of the CFL market to illustrate the potential for the induction lighting market while emphasizing future technical improvements. Discussion of the importance of utility involvement in helping their customers consider induction lamps for high-efficiency fluorescent applications with long-...

2007-12-20T23:59:59.000Z

134

An ultraviolet barrier-discharge OH molecular lamp  

Science Conference Proceedings (OSTI)

The energy and spectral parameters of a barrier discharge in a mixture of argon with hydroxyl {sup .}OH are studied experimentally. A sealed lamp with the radiation intensity maximum at {lambda} = 309.2 nm, an emitting surface area of {approx}700 cm{sup 2}, and a radiant excitance of 1.5 mW cm{sup -2} has been fabricated. The radiant power of the lamp is 1.1 W. (laser applications and other topics in quantum electronics)

Sosnin, E A; Erofeev, M V; Avdeev, S M; Panchenko, Aleksei N; Panarin, V A; Skakun, V S; Tarasenko, Viktor F; Shitts, D V [Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation)

2006-10-31T23:59:59.000Z

135

Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry  

DOE Patents (OSTI)

A novel design is described for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment. 9 figs.

Siminovitch, M.

1998-02-10T23:59:59.000Z

136

Compact fluorescent lamp using horizontal and vertical insulating septums and convective venting geometry  

SciTech Connect

A novel design for a compact fluorescent lamp, including a lamp geometry which will increase light output and efficacy of the lamp in a base down operating position by providing horizontal and vertical insulating septums positioned in the ballast compartment of the lamp to provide a cooler coldspot. Selective convective venting provides additional cooling of the ballast compartment.

Siminovitch, Michael (El Sobrante, CA)

1998-01-01T23:59:59.000Z

137

Studies on Temperature Dependence of Rubidium Lamp for Atomic Frequency Standard  

Science Conference Proceedings (OSTI)

Rb lamp is a very critical component of the Rb atomic clock's Physics Package. The Rb lamp's performance is very sensitive to temperature and its stability. In this paper we discuss the behaviors of Rb Lamp with temperature. The Rb lamp exciter power and temperature of Rb bulb are very important parameters in controlling the performance of the Rb Lamp. It is observed that at temperatures beyond 110 deg. C, the lamp mode changes from the ring to red mode resulting in abnormal broadening of emission lines and self reversal. The results of our studies on spectral analysis of Rb lamp under various operating conditions are reported in the paper.

Ghosal, Bikash; Banik, Alak; Vats, Vaibhav; Pal, Sukamal; Bahl, R. K [Space Applications Centre, ISRO, Ahmedabad-380015 (India)

2011-10-20T23:59:59.000Z

138

DOE CALiPER Program, Report 20.1 Subjective Evaluation of Beam Quality, Shadow Quality, and Color Quality for LED PAR38 Lamps  

Science Conference Proceedings (OSTI)

This report focuses on human-evaluated characteristics, including beam quality, shadow quality, and color quality. Using a questionnaire that included rank ordering, opinions on 27 of the Report 20 PAR38 lamps were gathered during a demonstration event for members of the local Illuminating Engineering Society (IES) chapter. This was not a rigorous scientific experiment, and the data should not be extrapolated beyond the scope of the demonstration. The results suggest that many of the LED products compared favorably to halogen PAR38 benchmarks in all attributes considered. LED lamps using a single-emitter design were generally preferred for their beam quality and shadow quality, and the IES members ranking of color quality did not always match the rank according to the color rendering index (CRI).

Royer, Michael P.; Poplawski, Michael E.; Miller, Naomi J.

2013-10-01T23:59:59.000Z

139

Scarcity, exit, voice and violence: the state seen through egovernment  

Science Conference Proceedings (OSTI)

This paper examines if, and how, the manner in which the state is viewed changes when an e-government system is implemented. The motivation for this paper lies in the fact that the nature of the state is under-theorised in e-government literature. The ... Keywords: India, e-government, exit, scarcity, state, violence, voice

Rahul De; J. B. Singh

2011-08-01T23:59:59.000Z

140

Eden Park Illumination | Open Energy Information  

Open Energy Info (EERE)

Illumination Illumination Jump to: navigation, search Name Eden Park Illumination Place Champaign, Illinois Zip 61821 Product Illinois-based startup focused on the commercialisation and development of highly efficient microplasma lighting. Coordinates 40.1142°, -88.243499° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.1142,"lon":-88.243499,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Fiber-type dosimeter with improved illuminator  

DOE Patents (OSTI)

A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Fox, Richard J. (Oak Ridge, TN)

1987-01-01T23:59:59.000Z

142

Fiber-type dosimeter with improved illuminator  

DOE Patents (OSTI)

A single-piece, molded plastic, Cassigrainian-type condenser arrangement is incorporated in a tubular-shaped personal pocket dosimeter of the type which combines an ionization chamber with an optically-read fiber electrometer to provide improved illumination of the electrometer fiber. The condenser routes incoming light from one end of the dosimeter tubular housing around a central axis charging pin assembly and focuses the light at low angles to the axis so that it falls within the acceptance angle of the electrometer fiber objective lens viewed through an eyepiece lens disposed in the opposite end of the dosimeter. This results in improved fiber illumination and fiber image contrast.

Fox, R.J.

1985-12-23T23:59:59.000Z

143

Very high efficacy electrodeless high intensity discharge lamps  

DOE Patents (OSTI)

An electrodeless arc lamp comprises an outer jacket hermetically sealing and thermally protecting an arc tube inside which has an upwardly convex bottom center section. The absence of chemically reactive electrode material makes it possible to use metal halides other than iodides. The tube contains chlorides, bromides or a mixture thereof of scandium and sodium in a nearly equimolar relationship in addition to mercury and an inert gas. Good color balance can be obtained at reduced reservoir temperature and with less power loss. Reduction in wall temperature makes it possible to attain longer lamp life.

Johnson, P.D.

1985-10-03T23:59:59.000Z

144

Visual calibration and correction for ambient illumination  

Science Conference Proceedings (OSTI)

Many applications require that an image will appear the same regardless of where or how it is displayed. However, the conditions in which an image is displayed can adversely affect its appearance. Computer monitor screens not only emit light, but can ... Keywords: Viewing conditions, ambient illumination, contrast correction, device independence, ergonomics, perceptually accurate display, reflections

Kate Devlin; Alan Chalmers; Erik Reinhard

2006-10-01T23:59:59.000Z

145

The Energy Efficiency of the U.S Fluorescent Lamp Ballast Industry  

NLE Websites -- All DOE Office Websites (Extended Search)

The Energy Efficiency of the U.S Fluorescent Lamp Ballast Industry The Energy Efficiency of the U.S Fluorescent Lamp Ballast Industry Speaker(s): Francis Rubinstein Date: February 14, 2008 - 12:00pm Location: 90-3122 Fluorescent lamp ballasts are subject to DOE appliance standards and rulemaking. But currently, only ballasts for older fluorescent lamp types, such as T-12 lamps are subject to minimum efficacy limits. The majority of fluorescent lamps now being shipped (T-8 and T-5 types) type are operated by ballasts that will not be subject to DOE rule until 2011. The metric used by DOE for characterizing the electrical efficiency of the fluorescent lamp-ballast system is called Ballast Efficacy Factor (BEF). Because BEF is not normalized, it is of limited utility for rulemaking and is useless for procurement. But by normalizing BEF to the total lamp power, I have

146

Solid-State Lighting: LED Replacement Lamps: Current Performance and the  

NLE Websites -- All DOE Office Websites (Extended Search)

LED Replacement Lamps: Current LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® to someone by E-mail Share Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on Facebook Tweet about Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on Twitter Bookmark Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on Google Bookmark Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on Delicious Rank Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on Digg Find More places to share Solid-State Lighting: LED Replacement Lamps: Current Performance and the Latest on ENERGY STAR® on

147

Information on the Fate of Mercury From Fluorescent Lamps Disposed in Landfills  

Science Conference Proceedings (OSTI)

Mercury is contained in energy-efficient fluorescent, mercury-vapor, metal halide, and high-pressure sodium lamps. This report presents information on the potential for air and groundwater contamination when mercury lamps are disposed in municipal landfills.

1995-04-19T23:59:59.000Z

148

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium vapor lamps, ultraviolet and  

E-Print Network (OSTI)

Mercury Lamps Recycling Fluorescent light-tubes, compact fluorescent bulbs, mercury and sodium light tubes are recycled. They are made from aluminum and metal. Aluminum is a silver-white metal and is very light in weight and strong. Because aluminum is ductile, it can be drawn into wires or pressed

Ungerleider, Leslie G.

149

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface.

Siminovitch, Michael J. (Richmond, CA)

1992-01-01T23:59:59.000Z

150

Thermal element for maintaining minimum lamp wall temperature in fluorescent fixtures  

DOE Patents (OSTI)

In a lighting fixture including a lamp and a housing, an improvement is disclosed for maintaining a lamp envelope area at a cooler, reduced temperature relative to the enclosed housing ambient. The improvement comprises a thermal element in thermal communication with the housing extending to and springably urging thermal communication with a predetermined area of the lamp envelope surface. 12 figs.

Siminovitch, M.J.

1992-11-10T23:59:59.000Z

151

Inrush related problems caused by lamps with electronic drivers and their mitigation  

Science Conference Proceedings (OSTI)

New types of appliances sometimes bring unexpected power quality problems. On several locations it was reported that energy-saving lamps cause random false tripping of circuit breakers. In all of these cases these lamps had electronic drivers. An investigation ... Keywords: energy-saving lamp, false tripping, inrush, mitigation, power quality

Vladimir ?uk; Joseph F. G. Cobben; Wil L. Kling

2011-07-01T23:59:59.000Z

152

Structure Illuminates Mechanism of Fungal Polyketide Cyclization  

NLE Websites -- All DOE Office Websites (Extended Search)

Structure Illuminates Mechanism Structure Illuminates Mechanism of Fungal Polyketide Cyclization Structure Illuminates Mechanism of Fungal Polyketide Cyclization Print Wednesday, 31 March 2010 00:00 Polyketide natural products produced by bacteria and fungi are often characterized by the presence of multiple aromatic rings that are responsible for the activity of polyketides as both beneficial antibiotic and anticancer agents and as dangerous toxic compounds, such as the highly carcinogenic aflatoxins that are produced by fungal species from the Aspergillus family of molds. Polyketide ring formation by fungal enzymes called polyketide synthases (PKSs) is mediated by the enzyme's product template (PT) domain. However, the mechanism for aromatic ring formation from a linear intermediate with high fidelity has remained unclear. To reveal the cyclization mechanism, researchers at the University of California, Irvine, and The Johns Hopkins University solved the structure of the isolated PT domain of the PKS involved in aflatoxin production (PksA) to 1.8 Å using data from ALS Beamline 8.2.2 and SSRL Beamline 9-1. The crystal structure, along with biochemical studies, provides a paradigm for polyketide cyclization by fungal PKSs, an event that is necessary for imparting biological activity to this large class of clinically relevant natural products.

153

Sulfur Lamps-The Next Generation of Efficient Light?  

NLE Websites -- All DOE Office Websites (Extended Search)

5 5 Sulfur Lamps-The Next Generation of Efficient Light? The figure above is a schematic of the system installed at the National Air and Space Museum and the DOE headquarters in Washington, D.C., Light from the sulfur lamp is focused by a parabolic reflector so that it enters the light pipe within a small angular cone. Light travels down the pipe, reflecting off the prismatic film (A) that lines the outer acrylic tube. The prismatic film reflects the light through total internal reflection (C), an intrinsically efficient process. Some of the light striking the film (at A) is not reflected and "leaks out" of the pipe walls (B), giving the pipe a glowing appearance. A light ray that travels all the way down the pipe will strike the mirror at the end (D) and return back up the pipe.

154

L Prize Competition Winner 60W Incandesent Replacement Lamp Update  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Technology Deployment Technology Deployment Working Group L Prize ® Competition Winner 60W Incandescent Replacement Lamp Update James E. Rannels, Senior Advisor L Prize Competition D&R International May 23, 2012 Philips Wins First L Prize 2 * August 3, 2011: Philips announced as winner of 60W replacement bulb category * Product distributed thru commercial and retail channels Image courtesy of Philips -...[O]nce an award is made the authorizing Act directs General Services Administration to develop federal purchasing schedules for solid-state lamps that meet or exceed the specifications laid out in the prize category-so long as it is cost effective. I hope the GSA begins this process soon.‖

155

Steam exit flow design for aft cavities of an airfoil  

DOE Patents (OSTI)

Turbine stator vane segments have inner and outer walls with vanes extending therebetween. The inner and outer walls have impingement plates. Steam flowing into the outer wall passes through the impingement plate for impingement cooling of the outer wall surface. The spent impingement steam flows into cavities of the vane having inserts for impingement cooling the walls of the vane. The steam passes into the inner wall and through the impingement plate for impingement cooling of the inner wall surface and for return through return cavities having inserts for impingement cooling of the vane surfaces. A skirt or flange structure is provided for shielding the steam cooling impingement holes adjacent the inner wall aerofoil fillet region of the nozzle from the steam flow exiting the aft nozzle cavities. Moreover, the gap between the flash rib boss and the cavity insert is controlled to minimize the flow of post impingement cooling media therebetween. This substantially confines outflow to that exiting via the return channels, thus furthermore minimizing flow in the vicinity of the aerofoil fillet region that may adversely affect impingement cooling thereof.

Storey, James Michael (Clifton Park, NY); Tesh, Stephen William (Simpsonville, SC)

2002-01-01T23:59:59.000Z

156

DuraLamp USA: Proposed Penalty (2010-CE-0912) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DuraLamp USA: Proposed Penalty (2010-CE-0912) DuraLamp USA: Proposed Penalty (2010-CE-0912) DuraLamp USA: Proposed Penalty (2010-CE-0912) September 9, 2010 DOE alleged in a Notice of Proposed Civil Penalty that DuraLamp USA, Inc. failed to certify a variety of general service fluorescent lamps as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. DuraLamp USA: Proposed Penalty (2010-CE-0912) More Documents & Publications DuraLamp USA: Order (2010-CE-0912)

157

Energy-efficient compact screw-in fluorescent lamp. Final report  

SciTech Connect

A compact fluorescent lamp has been designed and constructed which can replace an incandescent lamp. The lamp is slightly larger than a standard lamp (8 3/4 in. x 3 1/4 in.), but is designed to fit a majority of portable lamp applications. This version, with a core-coil ballast, results in a system efficacy of 54 lumens per watt, with a light output of more than 1800 lumens. This compares favorably with a 100-watt incandescent (17.5 lumens per watt and 1750 lumens light output). The color temperature of 3000/sup 0/K is compatible with an incandescent lamp (2800/sup 0/K). The color rendition index (CRI) is 84. With a solid-state ballast, the efficacy and light output could be increased by 20% (65 l/w, 2200 lumens) and could provide a direct replacement for a three-way, 150-watt incandescent lamp (15 l/w, 2200 lumens).

Morton, E.W.

1982-11-01T23:59:59.000Z

158

Structure Illuminates Mechanism of Fungal Polyketide Cyclization  

NLE Websites -- All DOE Office Websites (Extended Search)

Structure Illuminates Mechanism of Fungal Polyketide Cyclization Print Structure Illuminates Mechanism of Fungal Polyketide Cyclization Print Polyketide natural products produced by bacteria and fungi are often characterized by the presence of multiple aromatic rings that are responsible for the activity of polyketides as both beneficial antibiotic and anticancer agents and as dangerous toxic compounds, such as the highly carcinogenic aflatoxins that are produced by fungal species from the Aspergillus family of molds. Polyketide ring formation by fungal enzymes called polyketide synthases (PKSs) is mediated by the enzyme's product template (PT) domain. However, the mechanism for aromatic ring formation from a linear intermediate with high fidelity has remained unclear. To reveal the cyclization mechanism, researchers at the University of California, Irvine, and The Johns Hopkins University solved the structure of the isolated PT domain of the PKS involved in aflatoxin production (PksA) to 1.8 Å using data from ALS Beamline 8.2.2 and SSRL Beamline 9-1. The crystal structure, along with biochemical studies, provides a paradigm for polyketide cyclization by fungal PKSs, an event that is necessary for imparting biological activity to this large class of clinically relevant natural products.

159

Structure Illuminates Mechanism of Fungal Polyketide Cyclization  

NLE Websites -- All DOE Office Websites (Extended Search)

Structure Illuminates Mechanism of Fungal Polyketide Cyclization Print Structure Illuminates Mechanism of Fungal Polyketide Cyclization Print Polyketide natural products produced by bacteria and fungi are often characterized by the presence of multiple aromatic rings that are responsible for the activity of polyketides as both beneficial antibiotic and anticancer agents and as dangerous toxic compounds, such as the highly carcinogenic aflatoxins that are produced by fungal species from the Aspergillus family of molds. Polyketide ring formation by fungal enzymes called polyketide synthases (PKSs) is mediated by the enzyme's product template (PT) domain. However, the mechanism for aromatic ring formation from a linear intermediate with high fidelity has remained unclear. To reveal the cyclization mechanism, researchers at the University of California, Irvine, and The Johns Hopkins University solved the structure of the isolated PT domain of the PKS involved in aflatoxin production (PksA) to 1.8 Å using data from ALS Beamline 8.2.2 and SSRL Beamline 9-1. The crystal structure, along with biochemical studies, provides a paradigm for polyketide cyclization by fungal PKSs, an event that is necessary for imparting biological activity to this large class of clinically relevant natural products.

160

High Efficiency, Illumination Quality OLEDs for Lighting  

SciTech Connect

The goal of the program was to demonstrate a 45 lumen per watt white light device based upon the use of multiple emission colors through the use of solution processing. This performance level is a dramatic extension of the team's previous 15 LPW large area illumination device. The fundamental material system was based upon commercial polymer materials. The team was largely able to achieve these goals, and was able to deliver to DOE a 90 lumen illumination source that had an average performance of 34 LPW a 1000 cd/m{sup 2} with peak performances near 40LPW. The average color temperature is 3200K and the calculated CRI 85. The device operated at a brightness of approximately 1000cd/m{sup 2}. The use of multiple emission colors particularly red and blue, provided additional degrees of design flexibility in achieving white light, but also required the use of a multilayered structure to separate the different recombination zones and prevent interconversion of blue emission to red emission. The use of commercial materials had the advantage that improvements by the chemical manufacturers in charge transport efficiency, operating life and material purity could be rapidly incorporated without the expenditure of additional effort. The program was designed to take maximum advantage of the known characteristics of these material and proceeded in seven steps. (1) Identify the most promising materials, (2) assemble them into multi-layer structures to control excitation and transport within the OLED, (3) identify materials development needs that would optimize performance within multilayer structures, (4) build a prototype that demonstrates the potential entitlement of the novel multilayer OLED architecture (5) integrate all of the developments to find the single best materials set to implement the novel multilayer architecture, (6) further optimize the best materials set, (7) make a large area high illumination quality white OLED. A photo of the final deliverable is shown. In 2003, a large area, OLED based illumination source was demonstrated that could provide light with a quality, quantity, and efficiency on par with what can be achieved with traditional light sources. The demonstration source was made by tiling together 16 separate 6-inch x 6-inch blue-emitting OLEDs. The efficiency, total lumen output, and lifetime of the OLED based illumination source were the same as what would be achieved with an 80 watt incandescent bulb. The devices had an average efficacy of 15 LPW and used solution-processed OLEDs. The individual 6-inch x 6-inch devices incorporated three technology strategies developed specifically for OLED lighting -- downconversion for white light generation, scattering for outcoupling efficiency enhancement, and a scalable monolithic series architecture to enable large area devices. The downconversion approach consists of optically coupling a blue-emitting OLED to a set of luminescent layers. The layers are chosen to absorb the blue OLED emission and then luminescence with high efficiency at longer wavelengths. The composition and number of layers are chosen so that the unabsorbed blue emission and the longer wavelength re-emission combine to make white light. A downconversion approach has the advantage of allowing a wide variety of colors to be made from a limited set of blue emitters. In addition, one does not have to carefully tune the emission wavelength of the individual electro-luminescent species within the OLED device in order to achieve white light. The downconversion architecture used to develop the 15LPW large area light source consisted of a polymer-based blue-emitting OLED and three downconversion layers. Two of the layers utilized perylene based dyes from BASF AG of Germany with high quantum efficiency (>98%) and one of the layers consisted of inorganic phosphor particles (Y(Gd)AG:Ce) with a quantum efficiency of {approx}85%. By independently varying the optical density of the downconversion layers, the overall emission spectrum could be adjusted to maximize performance for lighting (e.g. blackbody temp

Joseph Shiang; James Cella; Kelly Chichak; Anil Duggal; Kevin Janora; Chris Heller; Gautam Parthasarathy; Jeffery Youmans; Joseph Shiang

2008-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Performance of T12 and T8 Fluorescent Lamps and Troffers and LED Linear Replacement Lamps CALiPER Benchmark Report  

Science Conference Proceedings (OSTI)

The Department of Energy (DOE) Commercially Available LED Product Evaluation and Reporting (CALiPER) Program was established in 2006 to investigate the performance of light-emitting diode (LED) based luminaires and replacement lamps. To help users better compare LED products with conventional lighting technologies, CALiPER has also performed benchmark research and testing of traditional (i.e., non-LED) lamps and fixtures. This benchmark report addresses standard 4-foot fluorescent lamps (i.e., T12 and T8) and the 2-foot by 4-foot recessed troffers in which they are commonly used. This report also examines available LED replacements for T12 and T8 fluorescent lamps, and their application in fluorescent troffers. The construction and operation of linear fluorescent lamps and troffers are discussed, as well as fluorescent lamp and fixture performance, based on manufacturer data and CALiPER benchmark testing. In addition, the report describes LED replacements for linear fluorescent lamps, and compares their bare lamp and in situ performance with fluorescent benchmarks on a range of standard lighting measures, including power usage, light output and distribution, efficacy, correlated color temperature, and the color rendering index. Potential performance and application issues indicated by CALiPER testing results are also examined.

Myer, Michael; Paget, Maria L.; Lingard, Robert D.

2009-01-16T23:59:59.000Z

162

X-rays Illuminate Ancient Archimedes Text  

NLE Websites -- All DOE Office Websites (Extended Search)

Related Links: Related Links: May 2005 Headlines TIP Article Press Release Walters Art Museum SSRL Home Page SLAC Home Page Stanford Home Page Tuesday, 31 May 2005 X-rays Illuminate Ancient Archimedes Text (contact: Uwe Bergmann, bergmann@slac.stanford.edu) Archimedes Figure Image provided by Will Noel, The Walters Art Museum An early transcription of Archimedes' mathematical theories has been brought to light through the probing of high-intensity x-rays at SSRL's BL6-2. The text contains part of the Method of Mechanical Theorems, one of Archimedes' most important works, which was probably copied out by a scribe in the tenth century. The parchment on which it was written was later scraped down and reused as pages in a twelfth century prayer book, producing a document known as a palimpsest (which comes from the Greek,

163

Achromatic illumination system for small targets  

DOE Patents (OSTI)

A pair of light beams is directed to provide illumination that is substantially uniform from all directions on a small target by a system comprising a pair of corrector windows, a pair of planar reflecting surfaces, a pair of paraboloidal mirrors and a reflecting mirror cavity. The components are arranged so that each of the beams passes through a corrector and is reflected from the planar surface to the paraboloidal mirror, from which it is focused through a hole in the planar surface to the interior of the cavity. The surface of the interior portion of the cavity is shaped to reflect the focused beam three times before the focused reflected beam strikes the target.

Sigler, Robert D. (Ann Arbor, MI)

1979-01-01T23:59:59.000Z

164

News Media Exits for Depleted Uranium and Depleted UF6 Articles  

NLE Websites -- All DOE Office Websites (Extended Search)

line line Archived News and Events News Media Links News Media Exits for Depleted Uranium and Depleted UF6 Articles Online editions of newspapers that cover Depleted Uranium...

165

Conservation potential of compact fluorescent lamps in India and Brazil  

SciTech Connect

We evaluate the conservation potential of compact fluorescent lamps (CFLs) for managing the rapidly increasing electrical energy and peak demand in India and Brazil. Using very conservative assumptions, we find that the cost of conserved energy using 16 W CFLs is 4 and 6 times less than the long range marginal cost of electricity for the two countries. The cost of avoided peak installed capacity is 6 and 9.5 times less than the cost of new installed capacity for India and Brazil. The analysis is undertaken from the three separate perspectives of the national economies, the consumers, and the utilities. We find that because residential electricity is subsidized, the consumers have little or no incentive to purchase and install the CFLs, unless they too are subsidized. However, the benefits of CFL installation to the utility are so large that subsidizing them is a paying proposition for the utility are so large that subsidizing them is a paying proposition for the utility in almost all cases. As an illustration of a gradual introduction strategy for CFLs, we calculate a scenario where national savings of the order of US $1.2 million per day for India and US $2.5 million per day for Brazil are reached in 10 years by a small and gradual transfer of subsidy from residential electricity to CFLs. We then explore the barriers to immediate large scale introduction of these lamps in the two countries. Specific technical and marketing problems are identified and discussed, which would require solution before such an introduction can be attempted. Lastly, we discuss the range of policy instruments, in addition to a subsidy scheme, that can be used for promoting the diffusion of these lamps in the domestic and commercial sector. 47 refs., 15 figs., 2 tabs.

Gadgil, A.; Martino Jannuzzi, G. de (Lawrence Berkeley Lab., CA (USA); Universidade Estadual de Campinas, SP (Brazil). Faculdade de Engenharia)

1989-07-01T23:59:59.000Z

166

Energy efficiency lighting on board naval ships: Phase 2 (The T-8 lamp system)  

SciTech Connect

This report describes the development and performance of the T-8 fluorescent lamp-ballast system. Similar to the Phase I effort, the cooperation of the lamp and ballast companies (GTE, North American Philips Lighting, and IOTA Engineering) were required for the successful result. The above companies submitted prototype lamps and ballasts to the Lawrence Berkeley Laboratory Lighting Group to evaluate. The lamp designs were modified as required and the optimum system selected. Two-lamp designs and one ballast were chosen and tested to determine if they met the Navy specifications. The second section describes the lamp-ballast specifications. This section includes the measured thermal performance from an ambient of 10/degree/C to 60/degree/C. 1 ref., 8 figs., 11 tabs.

Verderber, R.R.

1987-01-31T23:59:59.000Z

167

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to (a) rotate the bulb and (b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooler for providing cooling gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement. 8 figs.

Ury, M.G.; Turner, B.; Wooten, R.D.

1999-02-02T23:59:59.000Z

168

Microwave lamp with multi-purpose rotary motor  

DOE Patents (OSTI)

In a microwave powered electrodeless lamp, a single rotary motor is used to a) rotate the bulb and b) provide rotary motion to a blower or pump means for providing cooling fluid to the magnetron and/or to a forced gas cooling for providing cooler gas to the bulb. The blower may consist of only of an impeller without the usual blower housing. The motor, bulb stem and bulb, or motor, bulb stem, bulb and blower may be formed as an integral unit so as to facilitate replacement.

Ury, Michael G. (Bethesda, MD); Turner, Brian (Myersville, MD); Wooten, Robert D. (Rockville, MD)

1999-01-01T23:59:59.000Z

169

Technology Focus - Hybrid Solar Lighting Illuminates Energy Savings...  

NLE Websites -- All DOE Office Websites (Extended Search)

taxpayer dollars taxpayer dollars in federal facilities in federal facilities Hybrid Solar Lighting Illuminates Energy Savings for Government Facilities New technology provides...

170

Low pressure arc discharge lamp apparatus with magnetic field generating means  

DOE Patents (OSTI)

A low-pressure arc discharge apparatus having a magnetic field generating means for increasing the output of a discharge lamp is disclosed. The magnetic field generating means, which in one embodiment includes a plurality of permanent magnets, is disposed along the lamp for applying a constant transverse magnetic field over at least a portion of the positive discharge column produced in the arc discharge lamp operating at an ambient temperature greater than about 25 C. 3 figs.

Grossman, M.W.; George, W.A.; Maya, J.

1987-10-06T23:59:59.000Z

171

Guidance Concerning Enforcement of EISA 2007 Standards Candelabra Base and Intermediate Base Lamps  

Energy.gov (U.S. Department of Energy (DOE))

The Energy Independence and Security Act of 2007 (EISA 2007) imposed energy conservation standards for candelabra and intermediate base lamps, and those provisions became effective with the statute.

172

Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC  

Science Conference Proceedings (OSTI)

This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usign LED replacement lamps in art galleries housing national treasures.

Miller, Naomi J.; Rosenfeld, Scott M.

2012-06-22T23:59:59.000Z

173

EA-1911: Energy Conservation Standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps  

Energy.gov (U.S. Department of Energy (DOE))

This EA will evaluate the environmental impacts of a proposal to amend energy conservation standards for Certain Reflector, Elliptical Reflector, and Bulged Reflector Incandescent Lamps.

174

Dimming of Compact Fluorescent Lamps Caused By Cold-Air Drafts  

Science Conference Proceedings (OSTI)

This Case Study documents the investigation performed by the New York Port Authority (PA) of the dimming of compact fluorescent lamps (CFLs) in the World Trade Center.

2003-12-31T23:59:59.000Z

175

Power control architectures for cold cathode fluorescent lamp and light emitting diode based light sources.  

E-Print Network (OSTI)

?? In this dissertation, two different energy efficient power supply topologies are introduced for controlling cold cathode fluorescent lamp (CCFL) and high-brightness light emitting diode (more)

Doshi, Montu V.

2010-01-01T23:59:59.000Z

176

The effects of supply harmonics on the performance of compact fluorescent lamps  

SciTech Connect

This paper describes a performance evaluation of ten compact fluorescent lighting systems operated with sinusoidal and distorted voltage waveform conditions. The lamps were either provided with an electronic ballast, a magnetic core ballast or a magnetic core ballast with a power factor correction circuit. The test results show that the electrical performance of the compact fluorescent lamps for both sinusoidal and distorted voltage waveform operation is related to the different types of ballast used. The cost of operation of these compact fluorescent lamps was calculated and compared to the cost of a conventional 60 W incandescent lamp.

Arseneau, R.; Ouellette, M.

1993-04-01T23:59:59.000Z

177

High Efficiency LED Lamp for Solid-State Lighting  

SciTech Connect

This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency, solid-state lamps based on gallium nitride/silicon carbide light-emitting diodes. Novel chip designs and fabrication processes are described for a new type of nitride light-emitting diode with the potential for very high efficiency. This work resulted in the demonstration of blue light-emitting diodes in the one watt class that achieved up to 495 mW of light output at 350 mA drive current, corresponding to quantum and wall plug efficiencies of 51% and 45%, respectively. When combined with a phosphor in Cree's 7090 XLamp package, these advanced blue-emitting devices resulted in white light-emitting diodes whose efficacy exceeded 85 lumens per watt. In addition, up to 1040 lumens at greater than 85 lumens per watt was achieved by combining multiple devices to make a compact white lamp module with high optical efficiency.

James Ibbetson

2006-12-31T23:59:59.000Z

178

Low-Cost Illumination-Grade LEDs  

SciTech Connect

Solid State Lighting is a cost-effective, energy-conserving technology serving a rapidly expand- ing multi-billion dollar market. This program was designed to accelerate this lighting revolution by reducing the manufacturing cost of Illumination-Grade LEDs. The technical strategy was to investigate growth substrate alternatives to standard planar sapphire, select the most effective and compatible option, and demonstrate a significant increase in Lumen/$ with a marketable LED. The most obvious alternate substrate, silicon, was extensively studied in the first two years of the program. The superior thermal and mechanical properties of Si were expected to improve wavelength uniformity and hence color yield in the manufacture of high-power illumination- grade LEDs. However, improvements in efficiency and epitaxy uniformity on standard c-plane sapphire diminished the advantages of switching to Si. Furthermore, the cost of sapphire decreased significantly and the cost of processing Si devices using our thin film process was higher than expected. We concluded that GaN on Si was a viable technology but not a practical option for Philips Lumileds. Therefore in 2012 and 2013, we sought and received amendments which broadened the scope to include other substrates and extended the time of execution. Proprietary engineered substrates, off-axis (non-c-plane) sapphire, and c-plane patterned sapphire substrates (PSS) were all investigated in the final 18 months of this program. Excellent epitaxy quality was achieved on all three candidates; however we eliminated engineered substrates and non-c-plane sapphire because of their higher combined cost of substrate, device fabrication and packaging. Ultimately, by fabricating a flip-chip (FC) LED based upon c-plane PSS we attained a 42% reduction in LED manufacturing cost relative to our LUXEON Rebel product (Q1-2012). Combined with a flux gain from 85 to 102 Lm, the LUXEON Q delivered a 210% increase in Lm/$ over this time period. The technology was commercialized in our LUXEON Q product in Sept., 2013. Also, the retention of the sapphire increased the robustness of the device, enabling sales of low-cost submount-free chips to lighting manufacturers. Thus, blue LED die sales were initiated in the form of a PSS-FC in February, 2013.

Epler, John

2013-08-31T23:59:59.000Z

179

Thermal radiant exitance model performance: Soils and forests  

DOE Green Energy (OSTI)

Models of surface temperatures of two land surface types based on their energy budgets were developed to simulate the effects of environmental factors on thermal radiant exitance. The performance of these models is examined in detail. One model solves the non-linear differential equation for heat diffusion in solids using a set of submodels for surface energy budget components. The model performance is examined under three desert conditions thought to be a strong test of the submodels. The accuracy of the temperature predictions and submodels is described. The accuracy of the model is generally good but some discrepancies between some of the submodels and measurements are noted. The sensitivity of the submodels is examined and is seen to be strongly controlled by interaction and feedback among energy components that are a function of surface temperature. The second model simulates vegetation canopies with detailed effects of surface geometry on radiant transfer in the canopy. Foliage solar absorption coefficients are calculated using a radiosity approach for a three layer canopy and long wave fluxes are modeled using a view factor matrix. Sensible and latent heat transfer through the canopy are also simulated using, nearby meteorological data but heat storage in the canopy is not included. Simulations for a coniferous forest canopy are presented and the sensitivity of the model to environmental inputs is discussed.

Balick, L.K. [EG& G Energy Measurements Inc., Las Vegas, NV (United States); Smith, J.A. [NASA/Goddard Space Flight Center, Greenbelt, MD (United States). Lab. for Terrestrial Physics

1995-12-31T23:59:59.000Z

180

DESY, February 2001, TESLA Report 2001-07 Concept of the Beam Exit and Entrance Windows  

E-Print Network (OSTI)

DESY, February 2001, TESLA Report 2001-07 Concept of the Beam Exit and Entrance Windows of the Beam Exit and Entrance Windows for the TESLA Water based Beam Dumps and its related Beam Lines M for the TESLA project, beam windows are required for two purposes. The beam leaves the vacuum system through

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Illuminated Diagrams: Using Light and Print to Comparative Advantage W. Bradford Paley  

E-Print Network (OSTI)

the representation of information. Raskar's "Shader Lamps," e.g. [4] project onto dioramas to add textures; G. Welch, K-L Low, D. Bandyopadhyay, "Shader Lamps: Animating Real Objects with Image Based

Indiana University

182

Hardware-accelerated global illumination by image space photon mapping  

Science Conference Proceedings (OSTI)

We describe an extension to photon mapping that recasts the most expensive steps of the algorithm -- the initial and final photon bounces -- as image-space operations amenable to GPU acceleration. This enables global illumination for real-time applications ... Keywords: global illumination, photon mapping, photon volumes

Morgan McGuire; David Luebke

2009-08-01T23:59:59.000Z

183

Standard specification for illuminators used for viewing industrial radiographs  

E-Print Network (OSTI)

1.1 The function of the illuminator is to provide sufficient illumination and viewing capabilities for the purpose of identification and interpretation of radiographic images. This specification provides the recommended minimum requirements for Industrial Radiographic Illuminators used for viewing industrial radiographic films using transmitted light sources. 1.2 The illuminator has to ensure the same safety for personnel, or users of any electric apparatus, as specified by electrical standards applicable in the country in which the illuminator is used. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 1.3 Values stated in SI units are to be regarded as the standard. The values given in parenthesis are provided for information only.

American Society for Testing and Materials. Philadelphia

2006-01-01T23:59:59.000Z

184

Phosphor Systems for Illumination Quality Solid State Lighting Products  

Science Conference Proceedings (OSTI)

The objective of this program is to develop phosphor systems that will enable LED lamps with 96 lm/W efficacy at correlated color temperatures, (CCTs) ~3000 K, and color rendering indices (CRIs) >80 and 71 lm/W efficacy at CCTinvention and development of new phosphor materials that have improved efficiency and better match the eye sensitivity curves.

Setlur, Anant; Briel, Linda; Cleaver, Robert; Clothier, Brent; Gao, Yan; Harlow, Richard; Henderson, Claire; Heward, William; Hill, M Christine; Lyons, Robert; Murphy, James; Siclovan, Oltea; Stoklosa, Stan; Happek, Uwe; Aanegola, Srinath; Aesram, Danny; Deshpande, Anirudha; Jacob, Cherian; Kolodin, Boris; Stoklosa, Emil; Beers, Williams

2010-03-31T23:59:59.000Z

185

Research on Active Power Factor Correction of the Electronic Ballast for High-Pressure Sodium Lamps Based on L6563  

Science Conference Proceedings (OSTI)

In the recent years, there has been a growing interest in the design of high-pressure sodium lamp electronic ballast. Two measures are proposed to improve the power factor of high-pressure sodium lamp electronic ballasts from the definition of harmonic ... Keywords: high-pressure sodium lamps, electronic ballast, active power factor correction, L6563

Sun Jing

2010-06-01T23:59:59.000Z

186

United Illuminating - ZREC and LREC Long Term Contracts (Connecticut) |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

United Illuminating - ZREC and LREC Long Term Contracts United Illuminating - ZREC and LREC Long Term Contracts (Connecticut) United Illuminating - ZREC and LREC Long Term Contracts (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Industrial Installer/Contractor Institutional Local Government Low-Income Residential Multi-Family Residential Nonprofit Schools State Government Tribal Government Savings Category Bioenergy Alternative Fuel Vehicles Hydrogen & Fuel Cells Solar Buying & Making Electricity Wind Maximum Rebate $325.50 per ZREC; $200 per LREC Program Info Funding Source RPS Start Date 05/01/2012 State Connecticut Program Type Performance-Based Incentive Provider The United Illuminating Company Note: The deadline for the second request for proposals (RFP) under this program is June 13, 2013.

187

The United Illuminating Company - Small ZREC Tariff | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The United Illuminating Company - Small ZREC Tariff The United Illuminating Company - Small ZREC Tariff The United Illuminating Company - Small ZREC Tariff < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Low-Income Residential Multi-Family Residential Nonprofit Residential Schools State Government Tribal Government Savings Category Water Buying & Making Electricity Solar Home Weatherization Wind Program Info Funding Source RPS Start Date 01/08/2013 State Connecticut Program Type Performance-Based Incentive Rebate Amount $148.89 per ZREC Provider The United Illuminating Company Note: The 2013 application period has closed. In July 2011, Connecticut enacted legislation amending the state's [http://www.dsireusa.org/incentives/incentive.cfm?Incentive_Code=CT04R&re...

188

CALCULATING INTERIOR DAYLIGHT ILLUMINATION WITH A PROGRAMMABLE HAND CALCULATOR  

E-Print Network (OSTI)

Window Azimuth from Sun so Solar Altitude o Table A40 Solar Azimuth: 90 Window Orientation: 90 west sunsolar altitudes, while fg is determined as follows: where Illumination from the sun (

Bryan, Harvey J.

2013-01-01T23:59:59.000Z

189

CALCULATING INTERIOR DAYLIGHT ILLUMINATION WITH A PROGRAMMABLE HAND CALCULATOR  

E-Print Network (OSTI)

orientations and solar where E sun E 8 k y Illumination fromClear Sky Solar Altitude oo Window Azimuth from Sun goo .40 Solar Azimuth: 90 Window Orientation: 90 west of sun

Bryan, Harvey J.

2013-01-01T23:59:59.000Z

190

Using Procedural RenderMan Shaders for Global Illumination  

E-Print Network (OSTI)

Global illumination techniques like radiosity or Monte-Carlo ray-tracing are becoming standard features of rendering systems. However, there is currently no accepted interface format which supports an appropriate physically-based scene description. In this paper we present extensions to the well-known RenderMan interface, which allow for a physically based scene description and support advanced global illumination techniques. Special emphasis has been laid on the support for procedural descriptions of reflection and emission by RenderMan surface shaders. So far, they could not be used with most global illumination algorithms. The extensions have been implemented in a physically-based rendering system and are illustrated with examples. 1. Introduction In recent years physically-based rendering and global illumination have became major topics in computer graphics. While these techniques are on the edge of being used in commercial applications, it is getting more and more important to fi...

Philipp Slusallek; Thomas Pflaum; Hans-peter Seidel

1995-01-01T23:59:59.000Z

191

Radiance cache splatting: a GPU-friendly global illumination algorithm  

Science Conference Proceedings (OSTI)

Fast global illumination computation is a challenge in several fields such as lighting simulation and computergenerated visual effects for movies. To this end, the irradiance caching algorithm is commonly used since it provides high-quality rendering ...

Pascal Gautron; Jaroslav K?ivnek; Kadi Bouatouch; Sumanta Pattanaik

2008-08-01T23:59:59.000Z

192

Critical illumination condenser for x-ray lithography  

DOE Patents (OSTI)

A critical illumination condenser system, particularly adapted for use in extreme ultraviolet (EUV) projection lithography based on a ring field imaging system and a laser produced plasma source. The system uses three spherical mirrors and is capable of illuminating the extent of the mask plane by scanning either the primary mirror or the laser plasma source. The angles of radiation incident upon each mirror of the critical illumination condenser vary by less than eight (8) degrees. For example, the imaging system in which the critical illumination condenser is utilized has a 200 .mu.m source and requires a magnification of 26.times.. The three spherical mirror system constitutes a two mirror inverse Cassegrain, or Schwarzschild configuration, with a 25% area obstruction (50% linear obstruction). The third mirror provides the final pupil and image relay. The mirrors include a multilayer reflective coating which is reflective over a narrow bandwidth.

Cohen, Simon J. (Pleasanton, CA); Seppala, Lynn G. (Livermore, CA)

1998-01-01T23:59:59.000Z

193

Critical illumination condenser for x-ray lithography  

DOE Patents (OSTI)

A critical illumination condenser system is disclosed, particularly adapted for use in extreme ultraviolet (EUV) projection lithography based on a ring field imaging system and a laser produced plasma source. The system uses three spherical mirrors and is capable of illuminating the extent of the mask plane by scanning either the primary mirror or the laser plasma source. The angles of radiation incident upon each mirror of the critical illumination condenser vary by less than eight (8) degrees. For example, the imaging system in which the critical illumination condenser is utilized has a 200 {micro}m source and requires a magnification of 26. The three spherical mirror system constitutes a two mirror inverse Cassegrain, or Schwarzschild configuration, with a 25% area obstruction (50% linear obstruction). The third mirror provides the final pupil and image relay. The mirrors include a multilayer reflective coating which is reflective over a narrow bandwidth. 6 figs.

Cohen, S.J.; Seppala, L.G.

1998-04-07T23:59:59.000Z

194

Measurements of sky luminance, sky illuminance, and horizontal solar radiation  

Science Conference Proceedings (OSTI)

This paper presents initial findings of a sky measurement program currently in progress at the National Bureau of Standards. Measurements are reported on sky luminance and illuminance and how they relate to horizontal solar radiation and sun position. Correlations are presented relating horizontal illuminance to horizontal solar radiation, and zenith luminance to solar altitude. These empirical models are particularly suitable for use in daylighting energy studies since they are based on existing solar data currently available on standard weather tapes.

Treado, S.; Gillette, G.

1983-04-01T23:59:59.000Z

195

On the Interaction between Sea Breeze and Summer Mistral at the Exit of the Rhne Valley  

Science Conference Proceedings (OSTI)

The three-dimensional structure and dynamics of the combination of the sea breeze and the mistral at the Rhne Valley exit, in southeastern France, have been investigated experimentally and numerically on 22 June 2001. The mistral refers to a ...

Sophie Bastin; Philippe Drobinski; Vincent Gunard; Jean-Luc Caccia; Bernard Campistron; Alain M. Dabas; Patricia Delville; Oliver Reitebuch; Christian Werner

2006-06-01T23:59:59.000Z

196

Observations of Entry and Exit of Potential Vorticity at the Sea Surface  

Science Conference Proceedings (OSTI)

Although potential vorticity (PV) is central to many theories of the oceanic circulation, the entryexit of PV at the sea surface has not been thoroughly discussed from an observational perspective. After clarifying the notion of PV entry and ...

Arnaud Czaja; Ute Hausmann

2009-09-01T23:59:59.000Z

197

Vertical Structure of Kelvin Waves in the Indonesian Throughflow Exit Passages  

Science Conference Proceedings (OSTI)

The subsurface structure of intraseasonal Kelvin waves in two Indonesian Throughflow (ITF) exit passages is observed and characterized using velocity and temperature data from the 200406 International Nusantara Stratification and Transport (...

Kyla Drushka; Janet Sprintall; Sarah T. Gille; Irsan Brodjonegoro

2010-09-01T23:59:59.000Z

198

Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)  

SciTech Connect

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO.sub.2) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

Zapata, Luis E. (Livermore, CA); Hackel, Lloyd (Livermore, CA)

1999-01-01T23:59:59.000Z

199

Lamp system with conditioned water coolant and diffuse reflector of polytetrafluorethylene(PTFE)  

SciTech Connect

A lamp system with a very soft high-intensity output is provided over a large area by water cooling a long-arc lamp inside a diffuse reflector of polytetrafluorethylene (PTFE) and titanium dioxide (TiO{sub 2}) white pigment. The water is kept clean and pure by a one micron particulate filter and an activated charcoal/ultraviolet irradiation system that circulates and de-ionizes and biologically sterilizes the coolant water at all times, even when the long-arc lamp is off.

Zapata, L.E.; Hackel, L.

1999-10-26T23:59:59.000Z

200

Identification of lamp ballasts containing PCBs. Revised edition. Report no. EPS 2/CC/2  

SciTech Connect

Fluorescent lamp ballast capacitors are among the products that may contain polychlorinated biphenyls (PCBs). Questions about lamp ballasts concern the potential for leakage, the risk of heating and exploding, how to identify a ballast which contains PCBs, and the risk to human health. This study identifies those ballasts containing PCB-filled capacitors; the domestic and foreign manufacturers of PCB-containing ballasts; the total quantity of PCBs used in ballasts; and any potential problems. The study does not identify the risks of human health arising from the use of PCB-ballasts in fluorescent lamps.

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Pilot Study: Measurement of Room Illuminance to Assess Automatic Brightness  

NLE Websites -- All DOE Office Websites (Extended Search)

Study: Measurement of Room Illuminance to Assess Automatic Brightness Study: Measurement of Room Illuminance to Assess Automatic Brightness Control in Televisions Title Pilot Study: Measurement of Room Illuminance to Assess Automatic Brightness Control in Televisions Publication Type Conference Proceedings Year of Publication 2012 Authors Greenblatt, Jeffery B., Mia Forbes Pirie, Louis-Benoit Desroches, Sally M. Donovan, Clancy Donnelly, Craig Billingsley, and Chris Calwell Pagination 13 Date Published August 12 Conference Location Berkeley Abstract Automatic brightness control (ABC) is an increasingly common feature found in newtelevisions (TVs) and computer monitors. ABC is intended to adjust TV screen brightness(luminance) according to the ambient light level (room illuminance). When implementedcorrectly, this can both reduce energy consumption and improve viewing quality. The currentENERGY STAR test procedure provides for a more favorable energy use rating for TVs withABC, by measuring power consumption at two light levels (0 and 300 lux) and reporting aweighted-average energy use. However, this and other studies suggest that these levels are notrepresentative of actual TV viewing conditions.As there were currently only limited data available concerning room illuminance, weundertook a small pilot study in 2011 to begin to answer two key questions: 1. To what extent doroom illuminance levels vary depending on the location of measurement (e.g., center of theroom, on the couch, or at the TV)? 2. What room illuminance conditions are prevalent whenpeople watch TV?We measured room illuminance in the homes of nine volunteers in California andColorado to begin addressing the above two questions. Although the study had the usualdrawbacks of a pilot (limited sample size, time duration, etc.), it has, nonetheless, yielded usefulresults. The study shows definitively that there is large variability between measurements madeat different locations in the room and, therefore, that location of room illuminance measurementsis critical. Moreover, the majority (over 75%) of TV viewing occurred at illuminance levels ofless than 50 lux (though measurements of up to several hundred lux were also recorded), a resultthat was consistent with subsequent larger-scale studies. This type of information can helpdetermine how ABC-enabled TVs should be tested to best represent actual viewing conditions.

202

Miniature UV lamp excited by subnanosecond voltage pulses  

SciTech Connect

Energy, time, and spectral characteristics of emission of the second positive system of N{sub 2} molecules in gaseous nitrogen, Ar - N{sub 2} mixture, and air are investigated. An FPG-10 generator with voltage pulse FWHM of 200 and 400 ps and matched-load amplitudes of 14 and 6 kV, respectively, is used to excite gases. It is shown that excitation can be performed in two regimes using this generator. In the first regime a diffuse discharge is formed at atmospheric pressure, which opens ways to design miniature nanosecond UV lamps. A diffuse discharge is formed due to the generation of runaway electrons, with the aid of electrodes having a small radius of curvature and voltage pulses with a sharp leading edge. In the second regime an elevated average radiation power is obtained under excitation by a barrier discharge. However, the operating pressure is lower in this case, and the sizes of the emitting region and the UV pulse width significantly increase. (laser applications and other topics in quantum electronics)

Erofeev, M V; Baksht, E Kh; Tarasenko, Viktor F; Shut'ko, Yu V [Institute of High Current Electronics, Siberian Branch, Russian Academy of Sciences, Tomsk (Russian Federation)

2010-08-27T23:59:59.000Z

203

Phosphor Systems for Illumination Quality Solid State Lighting Products  

SciTech Connect

The objective of this program is to develop phosphor systems that will enable LED lamps with 96 lm/W efficacy at correlated color temperatures, (CCTs) ~3000 K, and color rendering indices (CRIs) >80 and 71 lm/W efficacy at CCT<3100 K and CRI~95 using phosphor downconversion of LEDs. This primarily involves the invention and development of new phosphor materials that have improved efficiency and better match the eye sensitivity curves.

Setlur, Anant; Briel, Linda; Cleaver, Robert; Clothier, Brent; Gao, Yan; Harlow, Richard; Henderson, Claire; Heward, William; Hill, M Christine; Lyons, Robert; Murphy, James; Siclovan, Oltea; Stoklosa, Stan; Happek, Uwe; Aanegola, Srinath; Aesram, Danny; Deshpande, Anirudha; Jacob, Cherian; Kolodin, Boris; Stoklosa, Emil; Beers, Williams

2010-03-31T23:59:59.000Z

204

Integrated starting and running amalgam assembly for an electrodeless fluorescent lamp  

DOE Patents (OSTI)

An integrated starting and running amalgam assembly for an electrodeless SEF fluorescent lamp includes a wire mesh amalgam support constructed to jointly optimize positions of a starting amalgam and a running amalgam in the lamp, thereby optimizing mercury vapor pressure in the lamp during both starting and steady-state operation in order to rapidly achieve and maintain high light output. The wire mesh amalgam support is constructed to support the starting amalgam toward one end thereof and the running amalgam toward the other end thereof, and the wire mesh is rolled for friction-fitting within the exhaust tube of the lamp. The positions of the starting and running amalgams on the wire mesh are jointly optimized such that high light output is achieved quickly and maintained, while avoiding any significant reduction in light output between starting and running operation.

Borowiec, Joseph Christopher (Schenectady, NY); Cocoma, John Paul (Clifton Park, NY); Roberts, Victor David (Burnt Hills, NY)

1998-01-01T23:59:59.000Z

205

On the Brightness of the Thomson Lamp: A Prolegomenon to Quantum Recursion Theory  

Science Conference Proceedings (OSTI)

Some physical aspects related to the limit operations of the Thomson lamp are discussed. Regardless of the formally unbounded and even infinite number of "steps" involved, the physical limit has an operational meaning in agreement with the Abel sums ...

Karl Svozil

2009-09-01T23:59:59.000Z

206

Apparatus to facilitate lengthening the life of incandescent lamps  

SciTech Connect

An energizing circuit is described for an incandescent bulb comprising a transformer having a primary winding connectable to an AC mains source and first and second secondary windings for producing first and second voltages. The first secondary winding is connected to an input of a first full-wave rectifier means and the second secondary winding is connected to an input of a second full-wave rectifier means, the full-wave rectifier means having outputs connected in parallel across the bulb. The first voltage is sufficient to fully illuminate the bulb and the second voltage is sufficient to maintain the bulb warm but with little or no light output, a first switch being connected between the first secondary winding and the first rectifier means whereby, when the first switch is open, the bulb is energized solely by the second voltage.

Spissinger, F.H.

1987-03-17T23:59:59.000Z

207

Demonstration of LED Retrofit Lamps at the Jordan Schnitzer Museum of Art  

SciTech Connect

The Jordan Schnitzer Museum of Art in Eugene, Oregon, houses a remarkable permanent collection of Asian art and antiquities, modern art, and sculpture, and also hosts traveling exhibitions. In the winter and spring of 2011, a series of digital photographs by artist Chris Jordan, titled "Running the Numbers," was exhibited in the Coeta and Donald Barker Special Exhibitions Gallery. These works graphically illustrate waste (energy, money, health, consumer objects, etc.) in contemporary culture. The Bonneville Power Administration and the Eugene Water and Electricity Board provided a set of Cree 12W light-emitting diode (LED) PAR38 replacement lamps (Cree LRP38) for the museum to test for accent lighting in lieu of their standard Sylvania 90W PAR38 130V Narrow Flood lamps (which draw 78.9W at 120V). At the same time, the museum tested LED replacement lamps from three other manufacturers, and chose the Cree lamp as the most versatile and most appropriate color product for this exhibit. The lamps were installed for the opening of the show in January 2011. This report describes the process for the demonstration, the energy and economic results, and results of a survey of the museum staff and gallery visitors on four similar clusters of art lighted separately by four PAR38 lamps.

Miller, Naomi J.

2011-09-01T23:59:59.000Z

208

Uniform illumination rendering using an array of LEDs: a signal processing perspective  

Science Conference Proceedings (OSTI)

An array of a large number of LEDs will be widely used in future indoor illumination systems. In this paper, we investigate the problem of rendering uniform illumination by a regular LED array on the ceiling of a room. We first present two general results ... Keywords: LED illumination, basic illumination pattern, regular grid, two-dimensional signal processing

Hongming Yang; Jan W. M. Bergmans; Tim C. W. Schenk; Jean-Paul M. G. Linnartz; Ronald Rietman

2009-03-01T23:59:59.000Z

209

A Photon Mapping Based Approach to Computing Celestial Illumination  

E-Print Network (OSTI)

For photographers to capture good pictures of their subjects, the lighting conditions must be taken into account and adjusted for accordingly. The same holds true for a satellite attempting to photograph another object in space: it must know the lighting conditions to adjust camera settings and position itself properly to take the best photograph. This thesis presents a photon mapping based algorithm to compute a physically accurate representation of the illumination of objects in orbit around the Earth, taking into account the effects that cause refraction in the atmosphere. I also discuss the assumptions that I have made to utilize the algorithm in an interactive 3D visualization tool, which I implemented to view the illumination on objects at arbitrary positions in space. Finally, I show that the photon mapping method offers improvements over simpler methods of computing illumination.

Penney, Jonathan

2009-05-01T23:59:59.000Z

210

Local and Global Illumination in the Volume Rendering Integral  

SciTech Connect

This article is intended as an update of the major survey by Max [1] on optical models for direct volume rendering. It provides a brief overview of the subject scope covered by [1], and brings recent developments, such as new shadow algorithms and refraction rendering, into the perspective. In particular, we examine three fundamentals aspects of direct volume rendering, namely the volume rendering integral, local illumination models and global illumination models, in a wavelength-independent manner. We review the developments on spectral volume rendering, in which visible light are considered as a form of electromagnetic radiation, optical models are implemented in conjunction with representations of spectral power distribution. This survey can provide a basis for, and encourage, new efforts for developing and using complex illumination models to achieve better realism and perception through optical correctness.

Max, N; Chen, M

2005-10-21T23:59:59.000Z

211

Characterisation of pulsed Carbon fiber illuminators for FIR instrument calibration  

E-Print Network (OSTI)

We manufactured pulsed illuminators emitting in the far infrared for the Planck-HFI bolometric instrument ground calibrations. Specific measurements have been conducted on these light sources, based on Carbon fibers, to understand and predict their properties. We present a modelisation of the temperature dependence of the thermal conductivity and the calorific capacitance of the fibers. A comparison between simulations and bolometer data is given, that shows the coherence of our model. Their small time constants, their stability and their emission spectrum pointing in the submm range make these illuminators a very usefull tool for calibrating FIR instruments.

Henrot-Versill, S; Couchot, F

2007-01-01T23:59:59.000Z

212

Characterisation of pulsed Carbon fiber illuminators for FIR instrument calibration  

E-Print Network (OSTI)

We manufactured pulsed illuminators emitting in the far infrared for the Planck-HFI bolometric instrument ground calibrations. Specific measurements have been conducted on these light sources, based on Carbon fibers, to understand and predict their properties. We present a modelisation of the temperature dependence of the thermal conductivity and the calorific capacitance of the fibers. A comparison between simulations and bolometer data is given, that shows the coherence of our model. Their small time constants, their stability and their emission spectrum pointing in the submm range make these illuminators a very usefull tool for calibrating FIR instruments.

S. Henrot-Versille; R. Cizeron; F. Couchot

2007-07-31T23:59:59.000Z

213

Illuminating clay: a 3-D tangible interface for landscape analysis  

Science Conference Proceedings (OSTI)

This paper describes a novel system for the real-time computational analysis of landscape models. Users of the system - called Illuminating Clay - alter the topography of a clay landscape model while the changing geometry is captured in real-time by ... Keywords: 3D laser scanner, DEM, GIS, landscape design, physical models, tangible user interface

Ben Piper; Carlo Ratti; Hiroshi Ishii

2002-04-01T23:59:59.000Z

214

Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination  

E-Print Network (OSTI)

Color-Accurate Underwater Imaging using Perceptual Adaptive Illumination Iuliu Vasilescu, Carrick, and ecosystem health and activity monitoring. Underwater robots are equipped with motor control for large scale transects but they lack sensors that enable capturing color-accurate underwater images. We present a method

Farritor, Shane

215

Apparatus and method for generating partially coherent illumination for photolithography  

DOE Patents (OSTI)

The present invention introduces a novel scatter plate into the optical path of source light used for illuminating a replicated object. The scatter plate has been designed to interrupt a focused, incoming light beam by introducing between about 8 to 24 diffraction zones blazed onto the surface of the scatter plate which intercept the light and redirect it to a like number of different positions in the condenser entrance pupil each of which is determined by the relative orientation and the spatial frequency of the diffraction grating in each of the several zones. Light falling onto the scatter plate, therefore, generates a plurality of unphased sources of illumination as seen by the back half of the optical system. The system comprises a high brightness source, such as a laser, creating light which is taken up by a beam forming optic which focuses the incoming light into a condenser which in turn, focuses light into a field lens creating Kohler illumination image of the source in a camera entrance pupil. The light passing through the field lens illuminates a mask which interrupts the source light as either a positive or negative image of the object to be replicated. Light passing by the mask is focused into the entrance pupil of the lithographic camera creating an image of the mask onto a receptive media.

Sweatt, William C. (Albuquerque, NM)

2001-01-01T23:59:59.000Z

216

Color-accurate underwater imaging using perceptual adaptive illumination  

Science Conference Proceedings (OSTI)

Capturing color in water is challenging due to the heavy non-uniform attenuation of light in water across the visible spectrum, which results in dramatic hue shifts toward blue. Yet observing color in water is important for monitoring and surveillance ... Keywords: Accurate colors, Adaptive illumination, Color rendering index, Underwater imaging

Iuliu Vasilescu; Carrick Detweiler; Daniela Rus

2011-10-01T23:59:59.000Z

217

X-ray Methods in High-Intensity Discharges and Metal-Halide Lamps: X-ray Induced Fluorescence  

SciTech Connect

We describe the use of x-ray induced fluorescence to study metal-halide high-intensity discharge lamps and to measure equilibrium vapor pressures of metal-halide salts. The physical principles of metal-halide lamps, relevant aspects of x-ray-atom interactions, the experimental method using synchrotron radiation, and x-ray induced fluorescence measurements relevant to metal-halide lamps are covered.

Curry, John J.; Lapatovich, Walter P.; Henins, Albert (NIST)

2011-12-09T23:59:59.000Z

218

Apparatus and method for generating partially coherent illumination for photolithography  

DOE Patents (OSTI)

The present invention relates an apparatus and method for creating a bright, uniform source of partially coherent radiation for illuminating a pattern, in order to replicate an image of said pattern with a high degree of acuity. The present invention introduces a novel scatter plate into the optical path of source light used for illuminating a replicated object. The scatter plate has been designed to interrupt a focused, incoming light beam by introducing between about 8 to 24 diffraction zones blazed onto the surface of the scatter plate which intercept the light and redirect it to a like number of different positions in the condenser entrance pupil each of which is determined by the relative orientation and the spatial frequency of the diffraction grating in each of the several zones. Light falling onto the scatter plate, therefore, generates a plurality of unphased sources of illumination as seen by the back half of the optical system. The system includes a high brightness source, such as a laser, creating light which is taken up by a beam forming optic which focuses the incoming light into a condenser which in turn, focuses light into a field lens creating Kohler illumination image of the source in a camera entrance pupil. The light passing through the field lens illuminates a mask which interrupts the source light as either a positive or negative image of the object to be replicated. Light passing by the mask is focused into the entrance pupil of the lithographic camera creating an image of the mask onto a receptive media. 7 figs.

Sweatt, W.C.

1999-07-06T23:59:59.000Z

219

Apparatus and method for generating partially coherent illumination for photolithography  

DOE Patents (OSTI)

The present invention relates an apparatus and method for creating a bright, uniform source of partially coherent radiation for illuminating a pattern, in order to replicate an image of said pattern with a high degree of acuity. The present invention introduces a novel scatter plate into the optical path of source light used for illuminating a replicated object. The scatter plate has been designed to interrupt a focused, incoming light beam by introducing between about 8 to 24 diffraction zones blazed onto the surface of the scatter plate which intercept the light and redirect it to a like number of different positions in the condenser entrance pupil each of which is determined by the relative orientation and the spatial frequency of the diffraction grating in each of the several zones. Light falling onto the scatter plate, therefore, generates a plurality of unphased sources of illumination as seen by the back half of the optical system. The system includes a high brightness source, such as a laser, creating light which is taken up by a beam forming optic which focuses the incoming light into a condenser which in turn, focuses light into a field lens creating Kohler illumination image of the source in a camera entrance pupil. The light passing through the field lens illuminates a mask which interrupts the source light as either a positive or negative image of the object to be replicated. Light passing by the mask is focused into the entrance pupil of the lithographic camera creating an image of the mask onto a receptive media.

Sweatt, William C. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

220

Determination of the cathode and anode voltage drops in high power low-pressure amalgam lamps  

Science Conference Proceedings (OSTI)

For the first time, cathode and anode drops of powerful low-pressure amalgam lamps were measured. The lamp discharge current is 3.2 A, discharge current frequency is 43 kHz, linear electric power is 2.4 W/cm. The method of determination of a cathode drop is based on the change of a lamp operating voltage at variation of the electrode filament current at constant discharge current. The total (cathode plus anode) drop of voltage was measured by other, independent ways. The maximum cathode fall is 10.8 V; the anode fall corresponding to the maximal cathode fall is 2.4 V. It is shown that in powerful low pressure amalgam lamps the anode fall makes a considerable contribution (in certain cases, the basic one) to heating of electrodes. Therefore, the anode fall cannot be neglected, at design an electrode and ballast of amalgam lamps with operating discharge current frequency of tens of kHz.

Vasilyak, L. M., E-mail: vasilyak@ihed.ras.ru [Russian Academy of Sciences, Joint Institute for High Temperatures (Russian Federation); Vasiliev, A. I., E-mail: vasiliev@npo.lit.ru; Kostyuchenko, S. V.; Sokolov, D. V.; Startsev, A. Yu. [Joint Stock Company NPO LIT (Russian Federation); Kudryavtsev, N. N. [Moscow Institute of Physics and Technology (State University) (Russian Federation)

2011-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Energy-Efficient, High-Color-Rendering LED Lamps Using Oxyfluoride and Fluoride Phosphors  

Science Conference Proceedings (OSTI)

LED lamps using phosphor downconversion can be designed to replace incandescent or halogen sources with a 'warm-white' correlated color temperature (CCT) of 2700-3200 K and a color rendering index (CRI) greater than 90. However, these lamps have efficacies of {approx}70% of standard 'cool-white' LED packages (CCT = 4500-6000 K; CRI = 75-80). In this report, we describe structural and luminescence properties of fluoride and oxyfluoride phosphors, specifically a (Sr,Ca){sub 3}(Al,Si)O{sub 4}(F,O):Ce{sup 3+} yellow-green phosphor and a K{sub 2}TiF{sub 6}:Mn{sup 4+} red phosphor, that can reduce this gap and therefore meet the spectral and efficiency requirements for high-efficacy LED lighting. LED lamps with a warm-white color temperature (3088 K), high CRI (90), and an efficacy of {approx}82 lm/W are demonstrated using these phosphors. This efficacy is {approx}85% of comparable cool-white lamps using typical Y{sub 3}Al{sub 5}O{sub 12}:Ce{sup 3+}-based phosphors, significantly reducing the efficacy gap between warm-white and cool-white LED lamps that use phosphor downconversion.

Setlur, A.; Radkov, E; Henderson, C; Her, J; Srivastava, A; Karkada, N; Kishore, M; Kumar, N; Aesram, D; et al.

2010-01-01T23:59:59.000Z

222

Chimneys: Warm and Cozy or Easy Exit for Your Heat? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? Chimneys: Warm and Cozy or Easy Exit for Your Heat? January 12, 2010 - 10:21am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy Both of my childhood homes featured fireplaces. If you've had one, you know how terrific they can be-great places to bask on cold winter nights, an easy opportunity to toast marshmallows, picturesque, undeniably a pleasure in the house that has one. However, fireplaces have chimneys...and chimneys can be problems when it comes to home energy efficiency. For one thing, many people do not take care to close their chimney flue when there is no fire. This means warm air has an easy exit from your home; you have a big hole in your roof, after all, and warm air will take advantage of that. Ditto cold air in the

223

www.mdpi.com/journal/ijms Crossing the Border: Molecular Control of Motor Axon Exit  

E-Print Network (OSTI)

Abstract: Living organisms heavily rely on the function of motor circuits for their survival and for adapting to ever-changing environments. Unique among central nervous system (CNS) neurons, motor neurons (MNs) project their axons out of the CNS. Once in the periphery, motor axons navigate along highly stereotyped trajectories, often at considerable distances from their cell bodies, to innervate appropriate muscle targets. A key decision made by pathfinding motor axons is whether to exit the CNS through dorsal or ventral motor exit points (MEPs). In contrast to the major advances made in understanding the mechanisms that regulate the specification of MN subtypes and the innervation of limb muscles, remarkably little is known about how MN axons project out of the CNS. Nevertheless, a limited number of studies, mainly in Drosophila, have identified transcription factors, and in some cases candidate downstream effector molecules, that are required for motor axons to exit the spinal cord. Notably, specialized neural crest cell derivatives, referred to as Boundary Cap (BC) cells, pre-figure and demarcate MEPs in vertebrates. Surprisingly, however, BC cells are not required for MN axon exit, but rather restrict MN cell bodies from ectopically migrating along their axons out of the CNS. Here,

Arlene Bravo-ambrosio; Zaven Kaprielian

2011-01-01T23:59:59.000Z

224

Observations of Thermally Driven Wind Jets at the Exit of Weber Canyon, Utah  

Science Conference Proceedings (OSTI)

Thermally driven valley-exit jets were investigated at Utahs Weber Canyon, a main tributary of the Great Salt Lake basin. An intensive measurement campaign during JulySeptember 2010 supplemented longer-term measurements to characterize the wind ...

Morgan F. Chrust; C. David Whiteman; Sebastian W. Hoch

2013-05-01T23:59:59.000Z

225

Observations of Velocity Conditions near a Hydroelectric Turbine Draft Tube Exit using ADCP Measurements  

Science Conference Proceedings (OSTI)

Measurement of flow characteristics near hydraulic structures is an ongoing challenge because of the need to obtain rapid measurements of time-varying velocity over a relatively large spatial domain. This paper discusses use of an acoustic Doppler current profiler (ADCP) to measure the rapidly diverging flow exiting from an operating hydroelectric turbine draft tube exit. The resolved three-dimensional velocity vectors show a highly complex and helical flow pattern developed near to and downstream of the exit. Velocity vectors were integrated across the exit and we computed an uneven percentage of flow (67%/33%) passing through the two draft tube barrels at a mid-range turbine discharge, consistent with physical model results. In addition to the three-dimensional velocity vectors, the individual one-dimensional velocities measured by each of the four ADCP beams can be separately used as calibration and validation datasets for numerical and physical models. This technique is demonstrated by comparing along-beam ADCP velocity measurements to data collected in a scaled physical model.

Cook, Christopher B.; Richmond, Marshall C.; Serkowski, John A.

2007-10-01T23:59:59.000Z

226

White Light Emitting Diode Development for General Illumination Applications  

SciTech Connect

This report contains a summary of technical achievements during a 3-year project aimed at developing the chip and packaging technology necessary to demonstrate efficient, high flux light-emitting diode (LED) arrays using Cree's gallium nitride/silicon carbide (GaN/SiC) LED technology as the starting point. Novel chip designs and fabrication processes are described that led to high power blue LEDs that achieved 310 mW of light output at 350 mA drive current, corresponding to quantum and wall plug efficiencies of 32.5% and 26.5%, respectively. When combined with phosphor, high power white LEDs with luminous output of 67 lumens and efficacy of 57 lumens per watt were also demonstrated. Advances in packaging technology are described that enabled compact, multi-chip white LED lamp modules with 800-1000 lumens output at efficacies of up to 55 lumens per watt. Lamp modules with junction-to-ambient thermal resistance as low as 1.7 C/watt have also been demonstrated.

James Ibbetson

2006-05-01T23:59:59.000Z

227

L-Prize Competition Winner 60W Incandescent Replacement Lamp Update  

NLE Websites -- All DOE Office Websites (Extended Search)

Interagency Technology Deployment Working Group L Prize ® Competition Winner 60W Incandescent Replacement Lamp Update James E. Rannels, Senior Advisor L Prize Competition D&R International March 15, 2012 Cost of electricity 1 cent per kilowatt-hour The Washington Post, March 8, 2012 Page One 2 Cost of electricity 11 cents per kilowatt-hour The Washington Post, March 9, 2012 Page Two 3 What Is the L Prize? * Technology competition to spur innovation and exceptional performance * Created by Energy Independence and Security Act (EISA 2007) Sec. 655 * Two key lamp replacements: 60W Incandescent and PAR 38 Halogen * Future focus: 21 st Century Lamp * Cash prizes, federal purchasing, utility programs 4 Philips Wins First L Prize * August 3, 2011: Philips

228

L-Prize Competition Winner 60W Incandescent Replacement Lamp Update  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Interagency Technology Deployment Working Group L Prize ® Competition Winner 60W Incandescent Replacement Lamp Update James E. Rannels, Senior Advisor L Prize Competition D&R International March 15, 2012 Cost of electricity 1 cent per kilowatt-hour The Washington Post, March 8, 2012 Page One 2 Cost of electricity 11 cents per kilowatt-hour The Washington Post, March 9, 2012 Page Two 3 What Is the L Prize? * Technology competition to spur innovation and exceptional performance * Created by Energy Independence and Security Act (EISA 2007) Sec. 655 * Two key lamp replacements: 60W Incandescent and PAR 38 Halogen * Future focus: 21 st Century Lamp * Cash prizes, federal purchasing, utility programs 4 Philips Wins First L Prize * August 3, 2011: Philips

229

Magical Mystery Devices or Not: How do LED Lamps and Luminaires Really Measure-Up?  

SciTech Connect

Solid-state lighting products for general lighting applications are now gaining a market presence, and more and more people are asking, Which of these are good products? Do they perform as claimed? How do they compare? Light Emitting Diodes (LEDs) differ from other light sources enough to require new procedures for measuring their performance and comparing to other lighting options, so both manufacturers and buyers are facing a learning curve. The energy-efficiency community has traditionally compared light sources based on system efficacy: rated lamp lumens divided by power into the system. This doesnt work for LEDs because there are no standard LED lamp packages and no lamp ratings, and because LED performance depends heavily on thermal, electrical, and optical design of complete lighting unit or luminaire. Luminaire efficacy is the preferred metric for LEDs because it measures the net light output from the luminaire divided by power into the system.

Paget, Maria L.; McCullough, Jeffrey J.; Steward, Heidi E.

2008-08-15T23:59:59.000Z

230

Selecting effective fluorescent lamp and ballast for retrofit in the continental United States. Final report  

SciTech Connect

Electrical lighting is a major contributor to daytime peak energy demand, accounting for about 30 percent of total electricity consumption in most Army facilities. Some of this energy may be wasted because many existing lighting systems at Army Installations use outmoded technologies. While recent technology has improved the energy efficiency of all lighting systems, fluorescent lighting-the most widely used interior building lighting-has shown the greatest efficiency gains. Retrofits using high-efficiency fluorescent lamps and ballasts can yield significant operating cost savings. High-efficiency fluorescent lighting systems are widely available, but current information on their performance characteristics is highly technical and not easily accessible to Army facility managers considering retrofit options. This report provides a single, accessible source that summarizes fluorescent lamp and ballast performance characteristics and outlines selection procedures. Fluorescent lamp, Retrofit, Ballast, Lighting. Energy conservation.

Taylor, W.R.

1993-08-01T23:59:59.000Z

231

Spectral distribution of dimmed HID lamps in a plant growth facility  

SciTech Connect

A commercial dimming ballast system for high intensity discharge (HID) lamps has been tested for use in plant growth chambers. The dimming ballast system can be controlled either manually at the dimming panel or by a d.c. voltage from a programmer or computer. Using the dimming system, photosynthetically active radiation can be continuously varied from about 200 to about 2000 ..mu..E m/sup -2/s/sup -1/. This paper shows the effects of dimming on the spectral intensity (400 to 750 nm) of three types of HID lamps measured individually and in combination to achieve a better spectral mix. The lamps used in this study were 400 w metal halide, mercury vapor and high pressure sodium.

Bingham, G.E.; Coyne, P.I.

1979-05-01T23:59:59.000Z

232

Nature of the effect of the ballast volumes of flash lamps on their emission  

SciTech Connect

The cause of the decrease in laser efficiency during pumping by flash lamps with increased ballast volumes is the unproductive loss of radiation, originating from the ballast volumes, and the associated change in the radiation brightness distribution along the length of the lamp. The increase radiation brightness at the electrodes of the light source is not the result of constriction of the discharge or the luminescence of the electrode plasma erosion, but is due to the slowing down of the plasma flows by the surface of the electrodes and to the slowing down of the ionized gas moving from the ballast volumes when it meets the denser plasma of the discharge zone. The profile of the current lines at the electrodes is established and the frequency of the axial oscillations of the plasma in the lamp is determined.

Basov, Yu.G.; Makarov, V.N.; Narkhova, G.I.

1975-11-01T23:59:59.000Z

233

Illumination system having a plurality of movable sources  

DOE Patents (OSTI)

An illumination system includes several discharge sources that are multiplexed together to reduce the amount of debris generated. The system includes: (a) a first electromagnetic radiation source array that includes a plurality of first activatable radiation source elements that are positioned on a first movable carriage; (b) a second electromagnetic radiation source array that includes a plurality of second activatable radiation source elements that are positioned on a second movable carriage; (c) means for directing electromagnetic radiation from the first electromagnetic radiation source array and electromagnetic radiation from the second electromagnetic radiation source array toward a common optical path; (d) means for synchronizing (i) the movements of the first movable carriage and of the second movable carriage and (ii) the activation of the first electromagnetic radiation source array and of the second electromagnetic radiation source array to provide an essentially continuous illumination of electromagnetic radiation along the common optical path.

Sweatt, William C. (Albuquerque, NM); Kubiak, Glenn D. (Livermore, CA)

2002-01-01T23:59:59.000Z

234

Determining daylight illuminance in rooms having complex fenestration systems  

SciTech Connect

Traditional computational models predict daylight illuminance in a space by dividing window surfaces into discrete areas and then calculating the apparent luminance of each window element by multiplying the luminance of the natural light source in a given viewing direction by the window transmittance in that direction. This approach works well for conventional glazing materials but is incapable of modeling commonly used, but complex, window systems such as those with specular reflective venetian blinds. We describe a new approach that combines measured luminance distributions for complex window systems with a flux transfer calculation within the space. This method resembles the calculation of illuminance from electric light fixtures where the candlepower distribution of the fixtures is measured and used as an input to the calculation. Based on the variable luminance characteristics of the window system, the SUPERLITE program calculates illuminance at the workplane over the entire space. The measurement techniques and mathematical implementation in the SUPERLITE program are described. This approach allows a wide range of complex and shading systems to be evaluated without continuous changes in the computational program. A special apparatus for measuring the bidirectional transmittance of window systems has been built in conjunction with this approach. Sample results from the program are compared to measurements made in scale models in a sky simulator. 5 refs., 6 figs.

Kim, J.J.; Papamichael, K.M.; Selkowitz, S.; Spitzglas, M.; Modest, M.

1986-11-01T23:59:59.000Z

235

Potential Environmental Impacts from the Metals in Incandescent, Compact Fluorescent Lamp (CFL), and Light-Emitting Diode (LED)  

E-Print Network (OSTI)

), and Light-Emitting Diode (LED) Bulbs Seong-Rin Lim, Daniel Kang, Oladele A. Ogunseitan,,§ and Julie M sources with compact fluorescent lamp (CFL) and light-emitting diode (LED) bulbs that use about 70% and 85 lighting systems are transitioning from incandes- cent to compact fluorescent lamp (CFL) and light

Short, Daniel

236

Book illumination and architectural decoration : the Mausoleum of Uljaytu in Sultaniyya  

E-Print Network (OSTI)

This thesis examines the conventions of two-dimensional articulation in architecture and its relationship to book illumination in early fourteenth century Iran. By examining the illuminations in a series of imperial Qurans ...

Bagchee, Nandini, 1968-

2000-01-01T23:59:59.000Z

237

Multispectral imaging of the ocular fundus using light emitting diode illumination  

E-Print Network (OSTI)

Multispectral imaging of the ocular fundus using light emitting diode illumination N. L. Everdell,1 on light emitting diode LED illumination that produces multispectral optical images of the human ocular

Claridge, Ela

238

A light diet for a giant appetite: An assessment of China's proposed fluorescent lamp standard  

SciTech Connect

Lighting has been one of the fastest growing electric end-uses in China over the last twenty years, with an average annual growth rate of 14%. Fluorescent lighting provides a significant portion of China's lighting need. In 1998, China produced 680 million fluorescent lamps, of which 420 million were linear fluorescent lamps of various diameters (T8 to T12). There are substantial variations both in energy efficiency and lighting performance among locally produced fluorescent lamps. Such variations present a perfect opportunity for policy intervention through efficiency standards to promote the adoption of more efficient fluorescent lamps in China. This paper analyzes China's proposed minimum efficiency standard for fluorescent lamps and presents an assessment of its likely impacts on China's lighting energy consumption and GHG emissions.

Lin, Jiang

2002-04-11T23:59:59.000Z

239

High frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lamps  

SciTech Connect

A novel high frequency LCLC double resonant electronic ballast has been developed for gas discharge lamp applications. The ballast consists of a half-bridge inverter which switches at zero voltage crossing and an LCLC resonant circuit which converts a low ac voltage to a high ac voltage. The LCLC resonant circuit has two LC stages. The first LC stage produces a high voltage before the lamp is ignited. The second LC stage limits lamp current with the circuit inductance after the lamp is ignited. In another embodiment a filament power supply is provided for soft start up and for dimming the lamp. The filament power supply is a secondary of the second resonant inductor. 27 figs.

Lai, J.S.

1995-06-20T23:59:59.000Z

240

15 KJ FLASH LAMP, POWER CONDITIONING UNIT DESIGNED FOR SAFTY, RELIABILITY & MANUFACTURABILITY*  

SciTech Connect

A 15kJoule, Flash Lamp Power Conditioning Unit has been successfully designed, developed, and deployed in the National Ignition Facility (NIF) Preamplifier Modules (PAM). The primary design philosophy of this power conditioning unit (PCU) is safety, reliability, and manufacturability. Cost reduction over commercially equivalent systems was also achieved through an easily manufactured packaging design optimized to meet NIF requirements. While still maintaining low cost, the PCU design includes a robust control system, fault diagnostic system, and safety features. The pulsed power design includes 6 PFN modules, each including a dual series injection trigger transformer, that drive a total of 12 flash lamp loads. The lamps are individually triggered via a 20kV pulse produced by a 1kV, MCT switched capacitive discharge unit on the primary side of the trigger transformer. The remote control interface includes an embedded controller that captures flash lamp current wave forms and fault status for each shot. The embedded controller provides the flexibility of remotely adjusting both the main drive voltage from 1.6 to 2.5 kV and the trigger voltage from 0 to 20 kV.

James, G; Merritt, B; Dreifuerst, G; Strickland, S

2007-08-07T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

A Local AFOS MOS Program (LAMP) and its Application to Wind Prediction  

Science Conference Proceedings (OSTI)

The Techniques Development Laboratory has a project called the local AFOS MOS Program (LAMP). Its purpose is the development of a system which can produce at any hour of the day in a Weather Service Forecast Office (WSFO) environment Model Output ...

Harry R. Glahn; David A. Unger

1986-07-01T23:59:59.000Z

242

Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference  

DOE Patents (OSTI)

An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp.

Simpson, James E. (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

243

RF driven sulfur lamp having driving electrodes which face each other  

DOE Patents (OSTI)

A high intensity discharge lamp without mercury is disclosed radiating a selected spectrum of which can be almost entirely in the visible range from an envelope that contains a sulfur containing substance. The lamp utilizes a signal source that generates an excitation signal that is externally coupled to the exterior surface of the envelope to excite the enclosed sulfur containing substance. Various embodiments of the lamp use electrodes adjacent the envelope to couple the excitation signal thereto with the face of the electrodes shaped to complement the shape of the exterior surface of the envelope. Two shapes discussed are spherical and cylindrical. To minimize filamentary discharges each envelope may include an elongated stem affixed to the exterior thereof whereby a rotational subsystem spins the envelope. In yet another embodiment the envelope has a Dewar configuration with two electrodes, one positioned near the external curved side surface of the body, and a second to the inner surface of the hole through the envelope. Further, the envelope may contain a backfill of a selected inert gas to assist in the excitation of lamp with that backfill at a pressure of less than 1 atmosphere, wherein the backfill pressure is directly related to the increase or decrease of peak output and inversely related to the increase and decrease of the emitted spectrum from the envelope. The emitting fill can be less than 6 mg/cc, or at least 2 mg/cc of the envelope of a sulfur containing substance. 17 figs.

Gabor, G.; Orr, T.R.; Greene, C.M.; Crawford, D.G.; Berman, S.M.

1999-06-22T23:59:59.000Z

244

Method and apparatus for powering an electrodeless lamp with reduced radio frequency interference  

DOE Patents (OSTI)

An electrodeless lamp waveguide structure includes tuned absorbers for spurious RF signals. A lamp waveguide with an integral frequency selective attenuation includes resonant absorbers positioned within the waveguide to absorb spurious out-of-band RF energy. The absorbers have a negligible effect on energy at the selected frequency used to excite plasma in the lamp. In a first embodiment, one or more thin slabs of lossy magnetic material are affixed to the sidewalls of the waveguide at approximately one quarter wavelength of the spurious signal from an end wall of the waveguide. The positioning of the lossy material optimizes absorption of power from the spurious signal. In a second embodiment, one or more thin slabs of lossy magnetic material are used in conjunction with band rejection waveguide filter elements. In a third embodiment, one or more microstrip filter elements are tuned to the frequency of the spurious signal and positioned within the waveguide to couple and absorb the spurious signal's energy. All three embodiments absorb negligible energy at the selected frequency and so do not significantly diminish the energy efficiency of the lamp. 18 figs.

Simpson, J.E.

1999-06-08T23:59:59.000Z

245

The Fuzzy Design of the Intelligent System for the Energy-Saving Lamps  

Science Conference Proceedings (OSTI)

In the paper, a intelligent system was proposed. It consists of variable converter and intelligent controller. Variable reactor which concludes variable reactance converter and power converter has wide applications in the soft starting, speed controlling ... Keywords: fuzzy control, variable reactor, intelligent control, power converter, Energy-Saving Lamps

Youxin Yuan; Kaihua Cui; Yiping Xiao; Tieliang Xu

2008-12-01T23:59:59.000Z

246

Issues, Models and Solutions for Triac Modulated Phase Dimming of LED Lamps  

E-Print Network (OSTI)

/a 30 lumens 0.1 Incandescent Bulb 15 W 225 lumens 15 Fluorescent Tube Lamp 10 W 500 lumens 50 White LED bulbs, and fluorescent lights, produce light that is radiated in all directions, LEDs produce a focused especially on the potential of white LED lights, which are an important and newly emerging lighting

Lehman, Brad

247

Energy Performance and Emissions of Electronic Ballasts Powering 4-Foot Fluorescent Lamps  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents tests performed at the Worcester Polytechnic Institute, in contract with the EPRI Power Electronics Applications Center (PEAC) to determine the average efficacy (lumens per watt), displacement power factor, total power factor, and current harmonic distortion of modern electronic ballasts powering fluorescent lamps.

2003-12-31T23:59:59.000Z

248

High frequency electronic ballast for HID lamps. Technical progress report, October 1, 1993--December 31, 1994  

SciTech Connect

Electronic Ballast Systems Corp. has been working on the development of highly efficient (94%) electronic ballast for HID lamps (35W,...,400W) providing energy savings of up to thirty five percent (35%) as compared to the only available alternative, the standard core and coil HID ballasts currently on the market.

1995-03-01T23:59:59.000Z

249

Electronic screw-in ballast and improved circline lamp phase I. Final report  

SciTech Connect

A solid state ballast has been designed for the efficient operation of a 10 in circline fluorescent lamp. The circuit can be manufactured using power hybrid technology. Eight discrete component versions of the ballasts have been delivered to LBL for testing. The results show the solid state fluorescent ballast system is more efficient than the core-coil ballasted systems on the market.

Kohler, T.P.

1980-09-01T23:59:59.000Z

250

A Comparative Verification of Localized Aviation Model Output Statistics Program (LAMP) and Numerical Weather Prediction (NWP) Model Forecasts of Ceiling Height and Visibility  

Science Conference Proceedings (OSTI)

In an effort to support aviation forecasting, the National Weather Services Meteorological Development Laboratory (MDL) has recently redeveloped the Localized Aviation Model Output Statistics (MOS) Program (LAMP) system. LAMP is designed to run ...

David E. Rudack; Judy E. Ghirardelli

2010-08-01T23:59:59.000Z

251

EXITE2 Observation of the SIGMA Source GRS 1227+025  

E-Print Network (OSTI)

We report the EXITE2 hard X-ray imaging of the sky around 3C273. A 2h observation on May 8, 1997, shows a $\\sim$260 mCrab source detected at $\\sim4\\sigma$ in each of two bands (50-70 and 70-93 keV) and located $\\sim$30' from 3C273 and consistent in position with the SIGMA source GRS1227+025. The EXITE2 spectrum is consistent with a power law with photon index 3 and large low energy absorption, as indicated by the GRANAT/SIGMA results. No source was detected in more sensitive followup EXITE2 observations in 2000 and 2001 with 3$\\sigma$ upper limits of 190 and 65 mCrab, respectively. Comparison with the flux detected by SIGMA shows the source to be highly variable, suggesting it may be non-thermal and beamed and thus the first example of a ``type 2'' (absorbed) Blazar. Alternatively it might be (an unprecedented) very highly absorbed binary system undergoing accretion disk instability outbursts, possibly either a magnetic CV, or a black hole X-ray nova.

J. E. Grindlay; P. F. Bloser; Y. Chou; T. Narita

2004-02-05T23:59:59.000Z

252

Treatability study for removal of leachable mercury in crushed fluorescent lamps  

SciTech Connect

Nonserviceable fluorescent lamps removed from radiological control areas at the Oak Ridge Department of Energy facilities have been crushed and are currently managed as mixed waste (hazardous and radiologically contaminated). We present proposed treatment flowsheets and supporting treatability study data for conditioning this solid waste residue so that it can qualify for disposal in a sanitary landfill. Mercury in spent fluorescent lamps occurs primarily as condensate on high-surface-area phosphor material. It can be solubilized with excess oxidants (e.g., hypochlorite solution) and stabilized by complexation with halide ions. Soluble mercury in dechlorinated saline solution is effectively removed by cementation with zero-valent iron in the form of steel wool. In packed column dynamic flow testing, soluble mercury was reduced to mercury metal and insoluble calomel, loading > 1.2 g of mercury per grain of steel wool before an appreciable breakthrough of soluble mercury in the effluent.

Bostick, W.D.; Beck, D.E.; Bowser, K.T. [and others

1996-02-01T23:59:59.000Z

253

Exit blade geometry and part-load performance of small axial flow propeller turbines: An experimental investigation  

Science Conference Proceedings (OSTI)

A detailed experimental investigation of the effects of exit blade geometry on the part-load performance of low-head, axial flow propeller turbines is presented. Even as these turbines find important applications in small-scale energy generation using micro-hydro, the relationship between the layout of blade profile, geometry and turbine performance continues to be poorly characterized. The experimental results presented here help understand the relationship between exit tip angle, discharge through the turbine, shaft power, and efficiency. The modification was implemented on two different propeller runners and it was found that the power and efficiency gains from decreasing the exit tip angle could be explained by a theoretical model presented here based on classical theory of turbomachines. In particular, the focus is on the behaviour of internal parameters like the runner loss coefficient, relative flow angle at exit, mean axial flow velocity and net tangential flow velocity. The study concluded that the effects of exit tip modification were significant. The introspective discussion on the theoretical model's limitation and test facility suggests wider and continued experimentation pertaining to the internal parameters like inlet vortex profile and exit swirl profile. It also recommends thorough validation of the model and its improvement so that it can be made capable for accurate characterization of blade geometric effects. (author)

Singh, Punit; Nestmann, Franz [Institute for Water and River Basin Management (IWG), University of Karlsruhe, Kaiser Str. 12, D 76128 Karlsruhe (Germany)

2010-09-15T23:59:59.000Z

254

Ultra-Compact High-Efficiency Luminaire for General Illumination  

SciTech Connect

Cree has developed a new ultra-compact light emitting diode (LED) luminaire capable of providing high efficacy with excellent color quality that can lead to significant energy savings in today??s commercial and retail applications. This success was based on an integrated development effort tailoring the LED component characteristics, optics, thermal management and driver design for the small footprint to achieve an overall system efficiency of ? 70%. A new LED component was designed to provide high brightness and efficacy in a form factor that allowed for a small directional beam with a luminaire housing design able to dissipate the heat effectively using a small physical envelope. A very compact, 90% efficient driver was developed to meet the system performance while not taking away any thermal mass from the heat sink. A 91% efficient secondary optics was designed to maximize efficiency while providing a smooth beam. The reliability of the new LED component was robust under accelerated testing conditions. Luminaires were assembled integrating the novel LED component, secondary optics, heat sink and driver technology to demonstrate the system improvement. Cree has successfully completed this project by developing an ultra-compact LED luminaire that provided 380 lumens at a correlated color temperature (CCT) of 2822 K and color rendering index (CRI) of 94 with an efficacy of 94 lumens per watt (LPW) when operating at 4 W input power (steady state) with an overall system efficiency of 81%. At a higher input power of 9 Watts, the lamp provided 658 lumens at 71 LPW.

Ted Lowes

2012-04-08T23:59:59.000Z

255

Determination of mercury distribution inside spent compact fluorescent lamps by atomic absorption spectrometry  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer New treatments for CFL are required considering the aim of Directive 202/96/CE. Black-Right-Pointing-Pointer It is shown that most of the mercury introduced into a CFL is in the phosphor powder. Black-Right-Pointing-Pointer Experimental conditions for microwave-assisted sample digestion followed by AAS measurements are described. Black-Right-Pointing-Pointer By washing the glass it is possible to reduce the concentration below legal limits. - Abstract: In this study, spent compact fluorescent lamps were characterized to determine the distribution of mercury. The procedure used in this research allowed mercury to be extracted in the vapor phase, from the phosphor powder, and the glass matrix. Mercury concentration in the three phases was determined by the method known as cold vapor atomic absorption spectrometry. Median values obtained in the study showed that a compact fluorescent lamp contained 24.52 {+-} 0.4 ppb of mercury in the vapor phase, 204.16 {+-} 8.9 ppb of mercury in the phosphor powder, and 18.74 {+-} 0.5 ppb of mercury in the glass matrix. There are differences in mercury concentration between the lamps since the year of manufacture or the hours of operation affect both mercury content and its distribution. The 85.76% of the mercury introduced into a compact fluorescent lamp becomes a component of the phosphor powder, while more than 13.66% is diffused through the glass matrix. By washing and eliminating all phosphor powder attached to the glass surface it is possible to classified the glass as a non-hazardous waste.

Rey-Raap, Natalia [Departamento de Ingenieria Mecanica y Construccion, Universitat Jaume I de Castellon, Av. de Vicent Sos Baynat s/n, 12071 Castellon de la Plana, Espana (Spain); Gallardo, Antonio, E-mail: gallardo@emc.uji.es [Departamento de Ingenieria Mecanica y Construccion, Universitat Jaume I de Castellon, Av. de Vicent Sos Baynat s/n, 12071 Castellon de la Plana, Espana (Spain)

2012-05-15T23:59:59.000Z

256

Integrated-circuit control for two-lamp electronic ballast. Final report  

SciTech Connect

Circuitry is described for a solid-state, high-frequency fluorescent ballast designed to operate two F40 T-12 rapid-start lamps. The circuits are designed to be produced by hybrid integrated circuit (IC) technology. The signal components are produced on a single IC chip; the power transistors are attached to an alumina substrate. The initial IC version reduces the component count by about 50%. The cost of each IC in 500K lots is $0.70, replacing discrete parts costing $2.25. Additional savings of more than $1.00 per unit are realized by the decreased assembly time and improved reliability of the ICs. The system performance (two-lamp F40) was compared to the discrete version of the ballast and to an efficient core-coil ballast and found to be 6% less and 20% more efficient, respectively. The decrease in efficiency relative to the discrete version of the ballast is due to retaining some power to the filaments during operation in order to maintain normal lamp life.

Kohler, T.P.

1982-11-01T23:59:59.000Z

257

Experimental and theoretical investigations on the warm-up of a high-pressure mercury discharge lamp  

SciTech Connect

Modern high-pressure discharge lamps are forced to provide instant light and hot relight capabilities - if possible at lower power units. A detailed understanding of the warm-up of high-pressure discharge lamps is therefore required. Complex fluid model codes were developed for the past years including more and more processes like two-dimensional treatment of convection trying to provide a more comprehensive and consistent description of high-pressure discharge lamps. However, there is a lack of experimental data to examine the performance of these models. This work provides a very complete set of geometrical, electrical, spectroscopic, and thermographic data according to the warm-up of a high-pressure mercury discharge lamp that is compared to the results of a state of the art fluid code. Quantitative agreement is achieved for single parameters like wall temperatures. But the paper also reveals the need for further investigations and improvements of the code.

Zalach, J.; Franke, St.; Schoepp, H. [Leibniz Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, D-17489 Greifswald (Germany); Araoud, Z.; Charrada, K. [Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, rte de Kairouan, 5019 Monastir (Tunisia); Zissis, G. [Laboratoire Plasma et Conversion d'Energie, 118 rte Narbonne, Bat3R2, 31062 Toulouse (France)

2011-03-15T23:59:59.000Z

258

Boldly Illuminating Biology's "Dark Matter"  

NLE Websites -- All DOE Office Websites (Extended Search)

14, 2013 14, 2013 Boldly Illuminating Biology's "Dark Matter" Is space really the final frontier, or are the greatest mysteries closer to home? In cosmology, dark matter is said to account for the majority of mass in the universe, however its presence is inferred by indirect effects rather than detected through telescopes. The biological equivalent is "microbial dark matter," that pervasive yet practically invisible infrastructure of life on the planet, which can have profound influences on the most significant environmental processes from plant growth and health, to nutrient cycles in terrestrial and marine environments, the global carbon cycle, and possibly even climate processes. By employing next generation DNA sequencing of genomes isolated from single cells, great

259

THE PROMISE OF SOLID STATE LIGHTING FOR GENERAL ILLUMINATION  

NLE Websites -- All DOE Office Websites (Extended Search)

Conclusions and Recommendations Conclusions and Recommendations from OIDA Technology Roadmaps Co-sponsored by DOE (BTS) and OIDA OIDA OPTOELECTRONICS INDUSTRY DEVELOPMENT ASSOCIATION 1133 Connecticut Avenue, NW Suite 600 Washington, DC 20036 Ph: (202) 785-4426 Fax: (202) 785-4428 Web: http://www.OIDA.org Building Technology, State and Community Programs Energy Efficiency and Renewable Energy U.S. Department of Energy Published by: Optoelectronics Industry Development Association 1133 Connecticut Avenue NW, Suite 600 Washington, DC 20036 Phone: (202) 785-4426 Fax: (202) 785-4428 Internet: http://www.oida.org 1 The Promise of Solid State Lighting for General Illumination s Light Emitting Diodes (LEDs) © 2001 Optoelectronics Industry Development Association Executive Summary In the midst of the rising fuel prices and the blackouts in California there is silent rev-

260

A New Rb Lamp Exciter Circuit for Rb atomic clocks and Studies on Transition from Ring to Red mode  

E-Print Network (OSTI)

In this paper we describe the development of novel RF exciter circuit for electrode less Rb lamp. The lamp exciter circuit is a RF oscillator with a a new configuration operating at 60 to 65 MHz frequency with 3 to 4 watt power. The Rb lamp is used in exciting the ground state hyperfine transitions in Rb atom in a glass cell placed inside a tuned microwave cavity, As the frequency of these hyperfine transitions is very stable it is used in the development of Rb atomic clock by phase locking the oven controlled crystal oscillator (OCXO) to this atomic transition frequency. The details of the Rb lamp exciter are presented in the paper.The Lamp is ideally operated in ring mode as in this mode the linewidth is narrow and there is no self reversal. However, high temperature and RF excitation power may drive the Rb lamp to red mode which gives rise to line broadening and self reversal. It is the experience that mode change from ring to red deteriorates the atomic signal strength and S/N. In this paper the reasons of mode change are also discussed.

Savita Singh; Bikash Ghosal; G M Saxena

2010-11-10T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

PHOTOINDUCED CURRENTS IN CDZNTE CRYSTALS AS A FUNCTION OF ILLUMINATION WAVELENGTH  

SciTech Connect

We report variations in the currents of CdZnTe semiconductor crystals during exposure to a series of light emitting diodes of various wavelengths ranging from 470 to 950 nm. The changes in the steady-state current of one CdZnTe crystal with and without illumination along with the time dependence of the illumination effects are discussed. Analysis of the de-trapping and transient bulk currents during and after optical excitation yield insight into the behaviour of charge traps within the crystal. Similar behaviour is observed for illumination of a second CdZnTe crystal suggesting that the overall illumination effects are not crystal dependent.

Teague, L.; Washington, A.; Duff, M.

2012-04-23T23:59:59.000Z

262

Exit chimney joint and method of forming the joint for closed circuit steam cooled gas turbine nozzles  

SciTech Connect

A nozzle segment for a gas turbine includes inner and outer band portions and a vane extending between the band portions. The inner and outer band portions are each divided into first and second plenums separated by an impingement plate. Cooling steam is supplied to the first cavity for flow through the apertures to cool the outer nozzle wall. The steam flows through a leading edge cavity in the vane into the first cavity of the inner band portion for flow through apertures of the impingement plate to cool the inner nozzle wall. Spent cooling steam flows through a plurality of cavities in the vane, exiting through an exit chimney in the outer band. The exit chimney is secured at its inner end directly to the nozzle vane wall surrounding the exit cavities, to the margin of the impingement plate at a location intermediate the ends of the exit chimney and to margins of an opening through the cover whereby each joint is externally accessible for joint formation and for subsequent inspection.

Burdgick, Steven Sebastian (Schenectady, NY); Burns, James Lee (Schenectady, NY)

2002-01-01T23:59:59.000Z

263

CFD modeling of a gas turbine combustor from compressor exit to turbine inlet  

SciTech Connect

Gas turbine combustor CFD modeling has become an important combustor design tool in the past few years, but CFD models are generally limited to the flow field inside the combustor liner at the diffuser/combustor annulus region. Although strongly coupled in reality, the two regions have rarely been coupled in CFD modeling. A CFD calculation for a full model combustor from compressor diffuser exit to turbine inlet is described. The coupled model accomplishes the following two main objectives: (1) implicit description of flow splits and flow conditions for openings into the combustor liner, and (2) prediction of liner wall temperatures. Conjugate heat transfer with nonluminous gas radiation (appropriate for lean, low emission combustors) is utilized to predict wall temperatures compared to the conventional approach of predicting only near wall gas temperatures. Remaining difficult issues such as generating the grid, modeling swirler vane passages, and modeling effusion cooling are also discussed.

Crocker, D.S.; Nickolaus, D.; Smith, C.E. [CFD Research Corp., Huntsville, AL (United States)

1999-01-01T23:59:59.000Z

264

An efficient illumination framework for web-based lighting engineering education  

Science Conference Proceedings (OSTI)

Although the interactive web-based learning environment enriches the study of lighting engineering, it relies healthy on realistic rendering and illumination calculations of 3D scenes. These operations are typically very expensive in kernel computations ... Keywords: dynamic scenes, global illumination, lighting engineering, web-based learning

Hui Xiao; Rynson W. H. Lau; Gary Tam

2006-07-01T23:59:59.000Z

265

Real-time robust background subtraction under rapidly changing illumination conditions  

Science Conference Proceedings (OSTI)

Fast robust background subtraction under sudden lighting changes is a challenging problem in many applications. In this paper, we propose a real-time approach, which combines the Eigenbackground and Statistical Illumination method to address this issue. ... Keywords: Background subtraction, EM, Eigenbackground, Illumination changes

Luc Vosters; Caifeng Shan; Tommaso Gritti

2012-12-01T23:59:59.000Z

266

A high-efficiency indirect lighting system utilizing the solar 1000 sulfur lamp  

SciTech Connect

High-lumen light sources represent unique challenges and opportunities for the design of practical and efficient interior lighting systems. High-output sources require a means of large-scale distribution and avoidance of high-luminance glare while providing efficient delivery. An indirect lighting system has been developed for use with a 1,000 Watt sulfur lamp that efficiently utilizes the high-output source to provide quality interior lighting. This paper briefly describes the design and initial testing of this new system.

Siminovitch, M.; Gould, C.; Page, E.

1997-06-01T23:59:59.000Z

267

Super-radiance in the sodium resonance lines from sodium iodide arc lamps  

Science Conference Proceedings (OSTI)

Super-radiance observed within the centers of the sodium resonance D lines emitted by arc lamps containing sodium iodide as additive in a high-pressure mercury plasma environment was studied by high-resolution emission spectroscopy. The spectral radiance of these self-reversed lines including super-radiance was simulated by considering a local enhancement of the source function due to the presence of an additional source of radiation near the arc wall. Causes of this hitherto unrecognized source of radiation are given.

Karabourniotis, D. [Department of Physics, Institute of Plasma Physics, University of Crete, 71003 Heraklion (Greece); Drakakis, E. [Department of Electrical Engineering, Technological Educational Institute, Heraklion (Greece)

2010-08-09T23:59:59.000Z

268

Experimental methodology for determining the system performance of fluorescent lamp, ballast, fixture combinations operating under realistic application conditions  

SciTech Connect

To meet the need for accurate performance data, an experimental method for determining the performance of lamp, ballast, and luminaire combinations operating under a broad range of realistic conditions was developed. The methodology employs a two-part experimental procedure. The first part uses a temperature-controlled luminous flux integrator to characterize the thermal performance of each lamp/ballast combination. This performance characterization is expressed in terms of light output and efficacy as a function of variations in minimum lamp wall temperature (MLWT) and is generated for the range of temperatures typically encountered in interior lighting applications. The second procedure uses a luminaire/plenum simulator to determine the specific MLWT that exists in a particular luminaire application as a function of luminaire type, mounting configuration, plenum integration, and room air temperature. The MLWTs thus measured may be used in conjunction with the lamp/ballast performance data to determine application-specific values of light output and efficacy for a given lamp/ballast/luminaire system.

Siminovitch, M.J.; Rubinstein, F.M.; Verderber, R.R.

1984-11-01T23:59:59.000Z

269

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg.sup.196 enrichment  

DOE Patents (OSTI)

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg.sup.196 isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, Mark W. (Belmont, MA)

1993-01-01T23:59:59.000Z

270

Method of controlling the mercury vapor pressure in a photo-chemical lamp or vapor filter used for Hg[sup 196] enrichment  

DOE Patents (OSTI)

The present invention is directed to a method of eliminating the cold spot zones presently used on Hg[sup 196] isotope separation lamps and filters by the use of a mercury amalgams, preferably mercury - indium amalgams. The use of an amalgam affords optimization of the mercury density in the lamp and filter of a mercury enrichment reactor, particularly multilamp enrichment reactors. Moreover, the use of an amalgam in such lamps and/or filters affords the ability to control the spectral line width of radiation emitted from lamps, a requirement for mercury enrichment.

Grossman, M.W.

1993-02-16T23:59:59.000Z

271

Energy Savings and NOx Emissions Reduction Potential from the 2012 Federal Legislation to Phase Out Incandescent Lamps in Texas  

E-Print Network (OSTI)

This report provides detailed information about the potential savings from the 2012 Federal Legislation to phase out incandescent lamps and the NOx emissions reduction from the replacement of incandescent bulbs with Compact Fluorescent Lamps (CFL). In Texas, this analysis includes the savings estimates from both the annual and Ozone Season Day (OSD) NOx reductions. The NOx emissions reduction in this analysis are calculated using estimated emissions factors for 2007 from the US Environmental Protection Agency (US EPA) eGRID database, which had been specially prepared for this purpose.

Liu, Zi; Baltazar, Juan Carlos; Haberl, Jeff; Soman, Rohit

2010-03-01T23:59:59.000Z

272

Effect of Sub-Bandgap Illumination on the Internal Electric Field of CdZnTe  

SciTech Connect

Post-growth manipulation of the internal electric field in CdZnTe crystals using sub-bandgap illumination is measured as a function of temperature through infrared (IR) transmission measurements. Using near sub-bandgap IR illumination, both the optical de-trapping of charge carriers and the reduction in carrier recombination increased the mobility lifetime in the crystal. The increased carrier transport is a direct result of decreased hole and electron trapping in addition to other underlying mechanisms. Concentration of the electric field near the cathode is also observed. We measured the electric field distribution with sub-bandgap illumination as a function of temperature via the Pockels effect.

Washington, A.

2011-09-16T23:59:59.000Z

273

The effect of exit beam phase aberrations on parallel beam coherent x-ray reconstructions.  

Science Conference Proceedings (OSTI)

Diffraction artifacts from imperfect x-ray windows near the sample are an important consideration in the design of coherent x-ray diffraction measurements. In this study, we used simulated and experimental diffraction patterns in two and three dimensions to explore the effect of phase imperfections in a beryllium window (such as a void or inclusion) on the convergence behavior of phasing algorithms and on the ultimate reconstruction. A predictive relationship between beam wavelength, sample size, and window position was derived to explain the dependence of reconstruction quality on beryllium defect size. Defects corresponding to this prediction cause the most damage to the sample exit wave and induce signature error oscillations during phasing that can be used as a fingerprint of experimental x-ray window artifacts. The relationship between x-ray window imperfection size and coherent x-ray diffractive imaging reconstruction quality explored in this work can play an important role in designing high-resolution in situ coherent imaging instrumentation and will help interpret the phasing behavior of coherent diffraction measured in these in situ environments.

Hruszkewycz, S. O.; Harder, R.; Xiao, X.; Fuoss, P. H. (Materials Science Division); ( XSD)

2010-12-01T23:59:59.000Z

274

The effect of exit beam phase aberrations on parallel beam coherent x-ray reconstructions  

Science Conference Proceedings (OSTI)

Diffraction artifacts from imperfect x-ray windows near the sample are an important consideration in the design of coherent x-ray diffraction measurements. In this study, we used simulated and experimental diffraction patterns in two and three dimensions to explore the effect of phase imperfections in a beryllium window (such as a void or inclusion) on the convergence behavior of phasing algorithms and on the ultimate reconstruction. A predictive relationship between beam wavelength, sample size, and window position was derived to explain the dependence of reconstruction quality on beryllium defect size. Defects corresponding to this prediction cause the most damage to the sample exit wave and induce signature error oscillations during phasing that can be used as a fingerprint of experimental x-ray window artifacts. The relationship between x-ray window imperfection size and coherent x-ray diffractive imaging reconstruction quality explored in this work can play an important role in designing high-resolution in situ coherent imaging instrumentation and will help interpret the phasing behavior of coherent diffraction measured in these in situ environments.

Hruszkewycz, S. O.; Fuoss, P. H. [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Harder, R.; Xiao, X. [X-Ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-12-15T23:59:59.000Z

275

Detection of Single Molecules Illuminated by a Light-Emitting Diode  

E-Print Network (OSTI)

Optical detection and spectroscopy of single molecules has become an indispensable tool in biological imaging and sensing. Its success is based on fluorescence of organic dye molecules under carefully engineered laser illumination. In this paper we demonstrate optical detection of single molecules on a wide-field microscope with an illumination based on a commercially available, green light-emitting diode. The results are directly compared with laser illumination in the same experimental configuration. The setup and the limiting factors, such as light transfer to the sample, spectral filtering and the resulting signal-to-noise ratio are discussed. A theoretical and an experimental approach to estimate these parameters are presented. The results can be adapted to other single emitter and illumination schemes.

Ilja Gerhardt; Lijian Mai; Antia Lamas-Linares; Christian Kurtsiefer

2011-01-14T23:59:59.000Z

276

THERMAL ANNEALING OF ZNO FILMS USING HIGH-DENSITY PLASMA ARC LAMPS  

Science Conference Proceedings (OSTI)

Nanostructured materials are rarely synthesized with appropriate phase and/or morphology. In this study, critical additional of as-synthesized nanostructured materials, such as annealing and/or activation of dopants, are addressed using infrared plasma arc lamps (PAL) over areas as large as 1,000 cm2. The broad spectral range of the PAL and the spectral variation of light absorption in nanostructured materials make the selection of processing parameters extremely difficult, posing a major technological barrier. In this study, the measurement of the surface temperature using various techniques for ZnO films on crystalline silicon wafers is discussed. An energy transport model for the simulation of rapid thermal processing using PAL is presented. The experimental and computational results show that the surface temperature cannot be measured directly and that computer simulation results are an effective tool for obtaining accurate data on processing temperatures.

Sabau, Adrian S [ORNL; Dinwiddie, Ralph Barton [ORNL; Xu, Jun [ORNL; Angelini, Joseph Attilio [ORNL; Harper, David C [ORNL

2011-01-01T23:59:59.000Z

277

NIST energy related inventions: Electronic starter device for fluorescent lamps. Interim report, August--October, 1997  

SciTech Connect

From the Scope of Work document which accompanied the original proposal, three silicon devices were anticipated for development, simulation, and quality assurance fabrication. The status of these are in the same format as the Scope of Work...Attachment-A-: Task 1--design and simulation; Task 2--prototype tooling; Task 3--test engineering; Task 4--product tooling; Task 5--package tooling/manufacturing design and assembly. It is felt the program will meet it`s stated goals of producing a low cost, high performance fluorescent lamp starter which will lower the acquisition and operating cost of fluorescent technology...thus saving significant amounts of energy. The likelihood of success is even greater, now that the TN22 component has been qualified. The challenges of creating a custom ASIC, while still significant, are within the skill and expertise level or the assigned engineers.

Johnson, S.A.

1997-12-01T23:59:59.000Z

278

Mercury reduction studies to facilitate the thermal decontamination of phosphor powder residues from spent fluorescent lamps  

SciTech Connect

This work investigates the thermal release of mercury from phosphor powder of spent fluorescent lamps. The treatment conditions and the ability of various reducing agents (primarily sodium borohydride) to lower the overall heating temperature required to improve the release of Hg have been evaluated. Hg species in samples were monitored in a thermal desorption atomic absorption spectrometer system, and total mercury was analyzed in a cold vapor atomic absorption spectrometer. Sodium borohydride was the best reducing agent among the ones studied. However, citric acid presented a high capacity to weaken mercury bonds with the matrix. When the sample was crushed with sodium borohydride for 40 min in a mass ratio of 10:1 (sample:reducing agent) and submitted to thermal treatment at 300 deg. C for 2 h, the concentration of mercury in a phosphor powder sample with 103 mg kg{sup -1} of mercury reached 6.6 mg kg{sup -1}.

Alves Durao, Walter [Chemistry Department, Federal University of Minas Gerais (UFMG), Cidade Universitaria 30.123-970 Belo Horizonte, MG (Brazil); Andreva de Castro, Camila [Chemistry Engineering Department, Federal University of Minas Gerais (UFMG) (Brazil); Carvalhinho Windmoeller, Claudia [Chemistry Department, Federal University of Minas Gerais (UFMG), Cidade Universitaria 30.123-970 Belo Horizonte, MG (Brazil)], E-mail: claucw@netuno.lcc.ufmg.br

2008-11-15T23:59:59.000Z

279

Illuminating system and method for specialized and decorative lighting using liquid light guides  

DOE Patents (OSTI)

The present invention comprises an illumination system for specialized decorative lighting including a light source, a flexible plastic tube sheath for distributing the light to a remote location, a transparent liquid core filling the tube that has an index of refraction greater than that of the plastic tube and an arrangement where light coupled from the light source is caused to leak from the liquid light guide at desired locations for the purposes of specialized lighting, such as underwater illumination in swimming pools.

Zorn, Carl J. (Yorktown, VA); Kross, Brian J. (Yorktown, VA); Majewski, Stanislaw (Grafton, VA); Wojcik, Randolph F. (Yorktown, VA)

1998-01-01T23:59:59.000Z

280

Archaeological data visualization in VR: analysis of lamp finds at the great temple of petra, a case study  

Science Conference Proceedings (OSTI)

We present the results of an evaluation of the ARCHAVE system, an immersive virtual reality environment for archaeological research. ARCHAVE is implemented in a Cave. The evaluation studied researchers analyzing lamp and coin finds throughout the excavation ... Keywords: archaeological data analysis, immersive virtual reality interfaces, scientific visualization

Daniel Acevedo; Eileen Vote; David H. Laidlaw; Martha S. Joukowsky

2001-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Lighting a building with a single bulb : toward a system for illumination in the 21st c.; or, A centralized illumination system for the efficient decoupling and recovery of lighting related heat  

E-Print Network (OSTI)

Piping light represents the first tenable method for recovery and reutilization of lighting related heat. It can do this by preserving the energy generated at the lamp as radiative, departing from precedent and avoiding ...

Levens, Kurt Antony, 1961-

1997-01-01T23:59:59.000Z

282

L&E: Adopt high-efficiency lighting for your parking lot | The Better  

NLE Websites -- All DOE Office Websites (Extended Search)

lot lot Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Adopt high-efficiency lighting for your parking lot Most parking lots are illuminated by older high-intensity discharge (HID) lighting technology without any energy-saving controls. New light-emitting diode (LED) technology can cut parking lot lighting energy bills by 40%, or much more with controls, while delivering additional benefits including long life, reduced maintenance costs, and improved lighting uniformity. The Lighting & Electrical team developed a performance specification to help building owners take advantage of these improved lighting

283

Communications and sensing of illumination contributions in a power led lighting system  

E-Print Network (OSTI)

Abstract In recent years, LED technology emerged as a prime candidate for the future illumination light source, due to high energy efficiency and long life time. In addition, LEDs offer a superior flexibility in terms of colors and shapes, which leads to a potentially infinite variety of available light patterns. In order to create these patterns via easy user interaction, we need to sense the local light contribution of each LED. This measurement could be enabled through tagging of the light of each LED with unique embedded IDs. To this end, we propose a new modulation and multiple access scheme, named as codetime division multiple access- pulse position modulation (CTDMA-PPM): a form of PPM which is keyed according to a spreading sequence, and in which the duty cycle is subject to pulse width modulation (PWM) according to the required lighting setting. Our scheme considers illumination constraints in addition to the communication requirements and, to our best knowledge, it has not been addressed by other optical modulation methods. Based on the proposed modulation method and multiple access schemes, we develop a system structure, which includes illumination sources, a sensor receiver and a control system. Illumination sources illuminate the environment and transmit information, simultaneously. According to our theoretical analysis, this system structure could support a number of luminaries equal to the size of the CDMA codebook times the dimming range. I.

Jean-paul M. G. Linnartz; Lorenzo Feri; Hongming Yang; Sel B. Colak; Tim C. W. Schenk

2008-01-01T23:59:59.000Z

284

Application of a three-dimensional model for a study of the energy transfer of a high-pressure mercury horizontal lamp  

Science Conference Proceedings (OSTI)

This paper is devoted to study the dynamics of a discharge lamp with high intensity in a horizontal position. As an example of application, we chose the high-pressure mercury lamp. For this, we realized a three-dimensional model, a stable and powered DC. After the validation of this model, we used it to reproduce the influence of some parameters that have appeared on major transport phenomena of mass and energy in studying the lamp operating in a horizontal position. Indeed, the mass of mercury and the electric current are modified and the effect of convective transport is studied.

Ben Hamida, M. B.; Charrada, K. [Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, 5019 route de Kairouan Monastir (Tunisia)

2012-06-15T23:59:59.000Z

285

Solar LED Light Pilot Project Illuminates the Way in Alabama | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

LED Light Pilot Project Illuminates the Way in Alabama LED Light Pilot Project Illuminates the Way in Alabama Solar LED Light Pilot Project Illuminates the Way in Alabama September 12, 2012 - 2:15pm Addthis Boaz, Alabama Mayor Tim Walker, along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter. Boaz, Alabama Mayor Tim Walker, along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter. Tertia Speiser Project Officer, Golden Field Office "I want to invite everyone to come to Boaz and see the future of responsible highway lighting and power generation." -Boaz Mayor Tim Walker

286

Solar LED Light Pilot Project Illuminates the Way in Alabama | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar LED Light Pilot Project Illuminates the Way in Alabama Solar LED Light Pilot Project Illuminates the Way in Alabama Solar LED Light Pilot Project Illuminates the Way in Alabama September 12, 2012 - 2:15pm Addthis Boaz, Alabama Mayor Tim Walker, along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter. Boaz, Alabama Mayor Tim Walker, along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter. Tertia Speiser Project Officer, Golden Field Office "I want to invite everyone to come to Boaz and see the future of responsible highway lighting and power generation." -Boaz Mayor Tim Walker

287

Method and apparatus for mounting a dichroic mirror in a microwave powered lamp assembly using deformable tabs  

DOE Patents (OSTI)

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector secured at the juncture of the two sections to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. The reflector is mounted in the cavity by tabs formed in the screen unit and bendable into the cavity to define support planes abutting respective surfaces of the reflector. The mesh section and tabs are preferably formed by etching a thin metal sheet. 7 figs.

Ury, M.; Sowers, F.; Harper, C.; Love, W.

1998-11-24T23:59:59.000Z

288

Method and apparatus for mounting a dichroic mirror in a microwave powered lamp assembly using deformable tabs  

DOE Patents (OSTI)

A microwave powered electrodeless lamp includes an improved screen unit having mesh and solid sections with an internal reflector secured at the juncture of the two sections to reflect light into a light-transmitting chamber defined in the lamp microwave cavity by the reflector and the mesh section. A discharge envelope of a bulb is disposed in the light-transmitting chamber. Light emitted from the envelope is prevented by the reflector from entering the cavity portion bounded by the solid section of the screen. The reflector is mounted in the cavity by tabs formed in the screen unit and bendable into the cavity to define support planes abutting respective surfaces of the reflector. The mesh section and tabs are preferably formed by etching a thin metal sheet.

Ury, Michael (Bethesda, MD); Sowers, Frank (Frederick, MD); Harper, Curt (Wheaton, MD); Love, Wayne (Olney, MD)

1998-01-01T23:59:59.000Z

289

Procedure for calculating interior daylight illumination with a programmable hand calculator  

DOE Green Energy (OSTI)

A procedure is described for calculating interior daylight illumination using an inexpensive programmable hand calculator. The proposed procedure calculates illumination at any point within a room utilizing sky luminance distribution functions that are consistent with the CIE (Commission Internationale de l'Eclairage) Overcast and Clear Sky functions. This procedure separates the light reaching the point being considered into three components, these being (a) light directly from the sky, (b) light after being reflected from external, and (c) internal surfaces. Finally, two examples are presented in order to demonstrate the proposed procedure and indicate the speed with which the calculations may be performed.

Bryan, H.J.; Clear, R.D.

1980-10-01T23:59:59.000Z

290

Illuminating system and method for specialized and decorative lighting using liquid light guides  

DOE Patents (OSTI)

The present invention comprises an illumination system for specialized decorative lighting including a light source, a flexible plastic tube sheath for distributing the light to a remote location, a transparent liquid core filling the tube that has an index of refraction greater than that of the plastic tube and an arrangement where light coupled from the light source is caused to leak from the liquid light guide at desired locations for the purposes of specialized lighting, such as underwater illumination in swimming pools. 5 figs.

Zorn, C.J.; Kross, B.J.; Majewski, S.; Wojcik, R.F.

1998-08-25T23:59:59.000Z

291

THE EFFECT OF SUBBANDGAP ILLUMINATION ON THE BULK RESISTIVITY OF CDZNTE  

SciTech Connect

The variation in bulk resistivity during infrared (IR) illumination above 950 nm of state-of-the-art CdZnTe (CZT) crystals grown using the traveling heating method or the modified Bridgman method is documented. The change in steady-state current with and without illumination is also evaluated. The influence of secondary phases (SP) on current?voltage (I?V) characteristics is discussed using IR transmission microscopy to determine the defect concentration within the crystal bulk. SP present within the CZT are connected to the existence of deep, IR-excitable traps within the bandgap.

Wright, J.; Washington, A.; Duff, M.; Burger, A.; Groza, M.; Buliga, V.

2013-08-13T23:59:59.000Z

292

Mechanical design of PlayLamp : a minimally intrusive device for recording the behavior of children at-risk of developmental disorders  

E-Print Network (OSTI)

This thesis paper documents the design process, decisions, and outcomes of the design of the physical form factor of PlayLamp, a device for video and audio recording the development of children at-risk of having developmental ...

Steger, Stephen Andrew

2008-01-01T23:59:59.000Z

293

Optical Design of Beam Shaping Optics for Camera Probe and LED Light Illumination Used for Minimally Invasive Abdominal Surgery.  

E-Print Network (OSTI)

??The optical design of a LED illuminator and camera imaging system were studied for potential use in a small medical "robotic type" probe to be (more)

He, Weiyi

2010-01-01T23:59:59.000Z

294

Optical Design of Beam Shaping Optics for Camera Probe and LED Light Illumination Used for Minimally Invasive Abdominal Surgery.  

E-Print Network (OSTI)

?? The optical design of a LED illuminator and camera imaging system were studied for potential use in a small medical "robotic type" probe to (more)

He, Weiyi

2011-01-01T23:59:59.000Z

295

Five kW Solid Oxide Fuel Cell Demonstration Project: Case Study: Exit Glacier Nature Center Acumentrics Demonstration  

Science Conference Proceedings (OSTI)

This case study documents the demonstration experiences and lessons learned from a 5 kW solid oxide fuel cell system operating on propane at the Kenai Fiords National Park at the Exit Glacier Visitor Center, Seward, Alaska. The case study is one of several fuel cell project case studies under research by EPRI's Distributed Energy Resources Program. This case study is designed to help utilities and other interested parties understand the early applications of fuel cell systems to help them in their resour...

2005-02-17T23:59:59.000Z

296

GLASS AND GLASS-DERIVATIVE SEALS FOR USE IN ENERGY-EFFICIENT FUEL CELLS AND LAMPS  

DOE Green Energy (OSTI)

As the project approaches the end of the first year, the materials screening components of the work are ahead of schedule, while all other tasks are on schedule. For solid oxide fuel cells (SOFC), a series of 16 sealing glasses have been prepared and characterized. Traditional melting was used to prepare all of the glasses, and the sol-gel approach has been used to prepare some of the glasses as well as other compositions that might be viable because of the low processing temperatures afforded by the sol-gel method. The glass characterization included measurements of the viscosity and thermal expansion of the glasses, as well as the thermal expansion of the partly crystalline glass ceramics. In addition, the wetting and sintering behavior of all glasses has been measured, as well as the crystallization behavior. The time and temperature at which crystalline phases form from the glasses has been determined for all of the glasses. Each glass ceramic contains at least two crystalline phases, and most of the crystalline phases have been positively identified. Room temperature leak testing has been completed for all sealants, and experiments are in progress to determine the DC electrochemical degradation and degradation in wet hydrogen. The second component of the work, focused on seals for higher-temperature discharge lighting, has focused on determining the phase relations in the yttria--alumina--silica system at various silica levels. Again, traditional melting and sol-gel synthesis have been employed, and the sol-gel method was successful for preparing new phases that were discovered during the work. High temperature diffraction and annealing studies have clarified the phase relations for the samples studies, although additional work remains. Four new phases have been identified and synthesized in pure form, from which full structure solutions were obtained as well as the anisotropic thermal expansion for each phase. Functional testing of lamps are on on-going and will be analyzed during year 2 of the contract.

Scott Misture; Arun Varshneya; Matthew Hall; Sylvia DeCarr; Steve Bancheri

2004-08-15T23:59:59.000Z

297

Determining Generative Models of Objects Under Varying Illumination: Shape and Albedo from Multiple Images Using SVDand Integrability  

Science Conference Proceedings (OSTI)

We describe a method of learning generative models of objects from a set of images of the object under different, and unknown, illumination. Such a model allows us to approximate the objects appearance under a range of lighting conditions. ... Keywords: Singular Value Decomposition, illumination models, photometric stereo

A. L. Yuille; D. Snow; R. Epstein; P. N. Belhumeur

1999-12-01T23:59:59.000Z

298

UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation Into Renewable Energy: The Solar Canopy Illumination System  

E-Print Network (OSTI)

Into Renewable Energy: The Solar Canopy Illumination System Samuel Davies, Patrick Duvall, Timothy Russell Investigation Into Renewable Energy: The Solar Canopy Illumination System Samuel Davies Patrick Duvall Timothy of a building's energy usage, the solar canopy system is ideal for facilities, such as the new student union

299

Side-by-Side Testing of Commercial Office Lighting Systems: Two-lamp Fluorescent Fixtures  

E-Print Network (OSTI)

Lighting systems in commercial office buildings are primary determinants of building energy use. In warmer climates, lighting energy use has important implications for building cooling loads as well as those directly associated with illumination tasks. To research the comparative performance of conventional and advanced office lighting systems, Florida Solar Energy Center (FSEC) set up the Lighting Flexible Test Facility (LFTF) which allows side-by-side comparison of lighting options in two otherwise identical 2.7 m x 3.7 m (9' x 12') south facing offices. The ceiling of the LFTF contains 0.61 m x 1.2 m (2' x 4') recessed fluorescent fixtures designed to be easily changed. Differing lighting systems were comparatively tested against each other over weeklong periods. Data on power consumption (watts), power quality (power factor), work-plane interior lighting levels (lux), bulb-wall, fixture and plenum temperatures were recorded every 15 minutes on a multi-channel data logger. This data allows realistic analysis of comparative lighting system performance including interactions with daylighting.

Parker, D. S.; Schrum, L.; Sonne, J. K.; Stedman, T. C.

1996-01-01T23:59:59.000Z

300

Glass and glass-derivative seals for use in energy-efficient fuel cells and lamps  

DOE Green Energy (OSTI)

For solid oxide fuel cells (SOFC), a series of 18 sealing glasses have been prepared and characterized. From the whole design space, several glasses were ''downselected'' and studied in detail to describe their behaviors in simulated fuel cell environments. One of the glasses was found to outperform all others, including the well-known G18 sealant developed at Pacific Northwest National Laboratory. The new glass composition showed lower bulk electrical conductivity, excellent sealing and wetting behavior when sealing under applied load, and qualitatively superior performance when exposed to wet hydrogen for 800 hours. Traditional melting was used to prepare all of the glasses that were studied in detail. The sol-gel approach was used to synthesize several compositions, but it was found that the glasses crystallized very rapidly during heating, precluding sealing. The glass characterization included measurements of the viscosity and thermal expansion of the glasses, as well as the thermal expansion of the partly crystalline glass ceramics. In addition, the wetting and sintering behavior of all glasses has been measured, as well as the crystallization behavior. The time and temperature at which crystalline phases form from the glasses has been determined for all of the glasses. Each glass ceramic contains at least two crystalline phases, and most of the crystalline phases have been positively identified. The body of fundamental data provides a platform for future developments for high temperature sealants, and the newly-developed glass compositions appear promising for large-scale testing. The second component of the work, focused on seals for higher-temperature discharge lighting, has focused on determining the phase relations in the yttria-alumina-silica system at various silica levels. Functional testing of one of the candidate sealants demonstrated that it performs well in current HID lighting applications. Further testing is required to evaluate its performance in next-generation lamps that operate at higher temperatures, but the baseline phase equilibria and crystallization behavior has been established for additional development. Again, traditional melting and sol-gel synthesis have been employed, and the sol-gel method was successful for preparing new phases that were discovered during the work. Four new phases have been identified and synthesized in pure form, from which full structure solutions were obtained as well as the anisotropic thermal expansion for each phase.

Scott Misture; Arun Varshineya; Matthew Hall; Sylvia DeCarr; Steve Bancheri

2005-07-28T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Numerical modeling of the temperature illumination intensity dependent performance of CIS solar cells  

DOE Green Energy (OSTI)

In this paper, the temperature dependence of CIS solar cell illuminated I-V is studied numerically using ADEPT. The effects of having a second junction either at the interface or at the back contact are investigated. These two placements of the second junction result in two distinctive shapes of the I-V at low temperatures. Both of these distinctive shapes have been observed experimentally.

Lee, Y.J.; Gray, J.L. [Purdue Univ., Lafayette, IN (United States). School of Electrical Engineering

1994-12-31T23:59:59.000Z

302

Optimized polar-azimuthal orientations for polarized light illumination of different superconducting nanowire single-photon detector designs  

E-Print Network (OSTI)

The optimum orientations were determined for polarized light illumination of three superconducting nanowire single-photon detector (SNSPD) designs consisting of niobium-nitride (NbN) stripes with dimensions according to ...

Csete, Maria

303

Nocturnal Photographs Taken from a U-2 Airplane Looking Down on Tops of Clouds Illuminated by Lightning  

Science Conference Proceedings (OSTI)

Photographs have been taken at night from an airplane at an altitude of 20 km looking directly down on the tops of thunderclouds illuminated by lightning. The hard, cauliflower-like appearance of the clouds gives evidence that strong convective ...

B. Vonnegut; O. H. Vaughan Jr.; M. Brook

1989-10-01T23:59:59.000Z

304

Supercond. Sci. Technol. 11 (1998) 479484. Printed in the UK PII: S0953-2048(98)88501-1 Study of flux entry and exit into  

E-Print Network (OSTI)

field, the inner filaments also contribute to the current flow. In the remanent state, the flux flux patterns of a long section (l = 18 mm) of the Bi-2223 tape to illustrate the problems of current of flux entry and exit into Bi-2223 multifilamentary tapes M R Koblischka§, T H Johansen, H Bratsberg

Johansen, Tom Henning

305

Numerical Simulations of a Transverse Indirect Circulation and Low-Level Jet in the Exit Region of an Upper-Level Jet  

Science Conference Proceedings (OSTI)

Uccellini and Johnson present a case study of a severe weather event in Ohio on 1011 May 1973 to show evidence for coupling between an upper-tropospheric jet streak and a low-level jet within an indirect transverse circulation found in the exit ...

Keith F. Brill; Louis W. Uccellini; Richard P. Burkhart; Thomas T. Warner; Richard A. Anthes

1985-06-01T23:59:59.000Z

306

Twin-belt continuous caster with containment and cooling of the exiting cast product for enabling high-speed casting of molten-center product  

DOE Patents (OSTI)

In continuously casting molten metal into cast product by a twin-belt machine, it is desirable to achieve dramatic increases in speed (linear feet per minute) at which cast product exits the machine, particularly in installations where steel cast product is intended to feed a downstream regular rolling mill (as distinct from a planetary mill) operating in tandem with the twin-belt caster. Such high-speed casting produces product with a relatively thin shell and molten interior, and the shell tends to bulge outwardly due to metallostatic head pressure of the molten center. A number of cooperative features enable high-speed, twin-belt casting: (1) Each casting belt is slidably supported adjacent to the caster exit pulley for bulge control and enhanced cooling of cast product. (2) Lateral skew steering of each belt provides an effective increase in moving mold length plus a continuity of heat transfer not obtained with prior art belt steering apparatus. (3) The exiting slab is contained and supported downstream from the casting machine to prevent bulging of the shell of the cast product, and (4) spray cooling is incorporated in the exit containment apparatus for secondary cooling of cast product.

Dykes, Charles D. (303 Shore Rd., Milton, VT); Daniel, Sabah S. (303 Shore Rd., Pittsburgh, PA); Wood, J. F. Barry (303 Shore Rd., Burlington, VT 05401)

1990-02-20T23:59:59.000Z

307

Process for environmentally safe disposal of used fluorescent lamp potted ballast assemblies with component part reclamation and/or recycling  

SciTech Connect

A process is described for the environmentally safe and economical disposal of used fluorescent lamp potted ballast housing assemblies comprising removing from the housing the potted assembly with its embedded electrical component assemblies including a component capacitor containing environmentally hazardous material PCB's; after or before such removing, immersing the potted assembly in a cryogenic bath and freezing the same to reader the potting sufficiently brittle to fragment into small pieces upon being impacted; impacting the potting thoroughly to crush and fragment the same into small pieces and to cleanly remove substantially all traces of the potting from all the electrical components and parts embedded therein and without imparting damage to the components and parts; disconnecting the component containing the environmentally hazardous material; and incinerating only the component containing the environmentally hazardous material, leaving all other components and parts including the housing and potting fragments for salvage, re-use and/or recycling.

Nardella, A.; Norian, B.

1993-07-27T23:59:59.000Z

308

Table 11. Summary of U.S. natural gas exports by point of exit, 2008-2012  

U.S. Energy Information Administration (EIA) Indexed Site

1 1 Table 11. Summary of U.S. natural gas exports by point of exit, 2008-2012 (volumes in million cubic feet, prices in dollars per thousand cubic feet) See footnotes at end of table. Pipeline (Canada) Eastport, ID 252 7.43 113 4.49 12 5.85 10 4.74 0 -- Calais, ME 0 -- 2,131 5.62 452 4.53 1,028 4.46 6,952 4.30 Detroit, MI 27,220 8.37 43,980 4.01 44,275 4.69 43,690 4.26 50,347 3.10 Marysville, MI 8,756 7.48 14,925 4.85 22,198 4.87 41,964 4.48 42,866 3.18 Sault Ste. Marie, MI 3,122 8.75 2,044 5.04 4,011 5.27 9,555 4.23 24,913 3.20 St. Clair, MI 492,235 8.96 612,369 4.62 650,590 4.86 781,058 4.45 754,494 3.11 Noyes, MN 0 -- 0 -- 0 -- 3,975 3.90 11,768 3.46 Babb, MT 0 -- 0

309

Innovative Development of Next Generation and Energy Efficient Solid State Light Sources for General Illumination  

SciTech Connect

This two year program resulted in a novel broadband spectrally dynamic solid state illumination source (BSDLED) that uses a dual wavelength light emitting diode (LED) and combinations of phosphors to create a broadband emission that is real-time controllable. Four major focuses of this work were as follows: (1) creation of a two terminal dual wavelength LED with control of the relative intensities of the two emission peaks, (2) bandgap modeling of the two terminal dual LED to explain operation based on the doping profile, (3) novel use of phosphor combinations with dual LEDs to create a broadband spectral power distribution that can be varied to mimic a blackbody radiator over a certain range and (4) investigation of novel doping schemes to create tunnel junctions or equivalent buried current spreading layers in the III-nitrides. Advances were achieved in each of these four areas which could lead to more efficient solid state light sources with greater functionality over existing devices. The two-terminal BSDLED is an important innovation for the solid-state lighting industry as a variable spectrum source. A three-terminal dual emitter was also investigated and appears to be the most viable approach for future spectrally dynamic solid state lighting sources. However, at this time reabsorption of emission between the two active regions limits the usefulness of this device for illumination applications.

Ian Ferguson

2006-07-31T23:59:59.000Z

310

Illumination of interior spaces by bended hollow light guides: Application of the theoretical light propagation method  

SciTech Connect

To ensure comfort and healthy conditions in interior spaces the thermal, acoustics and daylight factors of the environment have to be considered in the building design. Due to effective energy performance in buildings the new technology and applications also in daylight engineering are sought such as tubular light guides. These allow the transport of natural light into the building core reducing energy consumption. A lot of installations with various geometrical and optical properties can be applied in real buildings. The simplest set of tubular light guide consists of a transparent cupola, direct tube with high reflected inner surface and a ceiling cover or diffuser redistributing light into the interior. Such vertical tubular guide is often used on flat roofs. When the roof construction is inclined a bend in the light guide system has to be installed. In this case the cupola is set on the sloped roof which collects sunlight and skylight from the seen part of the sky hemisphere as well as that reflected from the ground and opposite facades. In comparison with the vertical tube some additional light losses and distortions of the propagated light have to be expected in bended tubular light guides. Recently the theoretical model of light propagation was already published and its applications are presented in this study solving illuminance distributions on the ceiling cover interface and further illuminance distribution on the working plane in the interior. (author)

Darula, Stanislav; Kocifaj, Miroslav; Kittler, Richard [ICA, Slovak Academy of Sciences, Bratislava (Slovakia); Kundracik, Frantisek [Department of Experimental Physics, FMPI, Comenius University, Bratislava (Slovakia)

2010-12-15T23:59:59.000Z

311

Dercognition: Exiting Bosnia  

E-Print Network (OSTI)

vulnerable. Ideally, heavy armored divisions would roll toof thousands of lightly armored infantry, plus additional

Kenney, George

1995-01-01T23:59:59.000Z

312

Energy Basics: Fluorescent Lighting  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

& Cooling Water Heating Fluorescent Lighting Fluorescent lamps use 25%-35% of the energy used by incandescent lamps to provide the same amount of illumination (efficacy of...

313

Solution-Procesed Small-Molecule OLED Luminaire for Interior Illumination  

Science Conference Proceedings (OSTI)

Prototype lighting panels and luminaires were fabricated using DuPont Displays?? solution-processed small-molecule OLED technology. These lighting panels were based on a spatially-patterned, 3-color design, similar in concept to an OLED display panel, with materials chosen to maximize device efficacy. The majority of the processing steps take place in air (rather than high vacuum). Optimization of device architecture, processing and construction was undertaken, with a final prototype design of 50 cm{sup 2} being fabricated and tested. Performance of these panels reached 35 lm/W at illuminant-A. A unique feature of this technology is the ability to color tune the emission, and color temperatures ranging from 2700 to > 6,500K were attained in the final build. Significant attention was paid to low-cost fabrication techniques.

Parker, Ian

2012-02-29T23:59:59.000Z

314

Designing Turbine Endwalls for Deposition Resistance with 1,400 °C Combustor Exit Temperatures and Syngas Water Vapor Levels„The Ohio State University  

NLE Websites -- All DOE Office Websites (Extended Search)

Designing Turbine Endwalls for Designing Turbine Endwalls for Deposition Resistance with 1,400 °C Combustor Exit Temperatures and Syngas Water Vapor Levels-The Ohio State University Background This University Turbine Systems Research (UTSR) project will explore a critical need for innovative turbine endwall designs that could increase turbine durability and mitigate the adverse effects of residue deposition from coal-derived synthesis gas (syngas). The Ohio State University (OSU), in cooperation with Brigham Young University (BYU),

315

Demonstration of LED Retrofit Lamps at an Exhibit of 19th Century Photography at the Getty Museum  

SciTech Connect

This document is a report of observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy (DOE) GATEWAY Demonstration Program. The program supports demonstrations of high-performance solid-state lighting (SSL) products in order to develop empirical data and experience with in-the-field applications of this advanced lighting technology. The DOE GATEWAY Demonstration Program focuses on providing a source of independent, third-party data for use in decision-making by lighting users and professionals; this data should be considered in combination with other information relevant to the particular site and application under examination. Each GATEWAY Demonstration compares SSL products against the incumbent technologies used in that location. Depending on available information and circumstances, the SSL product may also be compared to alternate lighting technologies. Though products demonstrated in the GATEWAY program may have been prescreened for performance, DOE does not endorse any commercial product or in any way guarantee that users will achieve the same results through use of these products. This report reviews the installation and use of LED PAR38 lamps to light a collection of toned albument photographic prints at the J. Paul Getty Museum in Malibu, California. Research results provided by the Getty Conservation Institute are incorporated and discussed.

Miller, Naomi J.; Druzik, Jim

2012-03-02T23:59:59.000Z

316

Atomic gas temperature in a nonequilibrium high-intensity discharge lamp determined from the red wing of the resonance mercury line 254 nm  

Science Conference Proceedings (OSTI)

For developing low-wattage high intensity discharge (HID) lamps, a better understanding of the relatively unexplored nonequilibrium phenomena is essential. This needs interpretation of diagnostic results by methods free from equilibrium assumptions. In this paper, the atomic temperature is determined from the simulation of a quasistatic broadened resonance line by distinguishing between atomic temperature and excitation temperature in the equation of radiative transfer. The proposed method is applied to the red wing of the resonance mercury line 254 nm emitted from a HID lamp working on ac. The experimental results show severe deviation from local thermodynamic equilibrium. More than one thousand degrees difference was obtained between atomic and electron temperatures at the maximum current phase.

Drakakis, E. [Technological Educational Institute, Department of Electrical Engineering, 71004 Heraklion (Greece); Karabourniotis, D. [Institute of Plasma Physics, Department of Physics, University of Crete, 71003 Heraklion (Greece)

2012-09-01T23:59:59.000Z

317

DOE/EA-1664: Environmental Assessment for 10 CFR 430 Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps (June 2009)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

4 4 Environmental Assessment for 10 CFR Part 430 Energy Conservation Standards: Energy Conservation Standards for Fluorescent and Incandescent Lamps June 2009 16-i CHAPTER 16. ENVIRONMENTAL ASSESSMENT TABLE OF CONTENTS 16.1 INTRODUCTION ......................................................................................................... 16-1 16.2 AIR EMISSIONS ANALYSIS...................................................................................... 16-1 16.2.1 Air Emissions Descriptions............................................................................................ 16-1 16.2.2 Air Quality Regulation................................................................................................... 16-3 16.2.3 Global Climate Change..................................................................................................

318

Assessment of Electrical, Efficiency, and Photometric Performance of Advanced Lighting Sources: Dimmable Advanced Lighting Technolog ies -- Electronic (Hot and Cold Cathode) Compact Fluorescent Lamps and Ballasts  

Science Conference Proceedings (OSTI)

This EPRI Technical Update (EPRI report 1018477) is one of four in a series that addresses basic dimming performance of advanced lighting sourceselectronic (hot and cold cathode) compact fluorescent lamps and ballasts Chapter 1 discusses basic lighting control, the importance of considering power quality in lighting control, lighting control methods and parameters, and the advantages and future of lighting control. Chapter 2 addresses in more depth dimming methods used in advanced lighting sources and co...

2008-12-19T23:59:59.000Z

319

STcorr: An IDL code for image based normalization of lapse rate and illumination effects on nighttime TIR imagery  

Science Conference Proceedings (OSTI)

Thermal infrared imagery (TIR) is a useful tool to detect and quantify the surface temperature anomalies associated with geothermal fields. Accurate detection of anomalies in surface temperature is an important aspect of geothermal research. Although ... Keywords: ASTER, Illumination, Nemrut volcano, Normalization, Thermal infrared, Topographic

?Nan Ulusoy; Philippe Labazuy; Erkan Aydar

2012-06-01T23:59:59.000Z

320

Soil surface illumination at micro-relief scale and soil BRDF data collected by a hyperspectral camera  

Science Conference Proceedings (OSTI)

The results of the paper draw attention to the fact that the hyperspectral image of soil surface at micro-relief scale may display variation in the soil spectral shape due to illumination conditions of the surface. The image of an extremely rough cultivated ...

Jerzy Cierniewski; Arnon Karnieli; Ittai Herrmann; S?awomir Krolewicz; Krzysztof Ku?nierek

2010-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

An overview of an illuminator of opportunity passive radar research project and its signal processing research directions  

Science Conference Proceedings (OSTI)

In this paper, an overview of an Illuminator Of Opportunity (IOO) passive radar research project being conducted at DSTO is presented, with a specific focus on the signal processing research directions that are being investigated. The overview provides ... Keywords: Bistatic radar, Passive coherent location

J. Palmer; S. Palumbo; A. Summers; D. Merrett; S. Searle; S. Howard

2011-09-01T23:59:59.000Z

322

Demonstration Assessment of Light-Emitting Diode (LED) Retrofit Lamps at the Lobby of the Bonneville Power Administration, Portland, OR  

SciTech Connect

This report describes the process and results of a demonstration of solid-state lighting (SSL) technology in the lobby of the Bonneville Power Administration (BPA) headquarters building in Portland, Oregon. The project involved a simple retrofit of 32 track lights used to illuminate historical black-and-white photos and printed color posters from the 1930s and 1940s. BPA is a federal power marketing agency in the Northwestern United States, and selected this prominent location to demonstrate energy efficient light-emitting diode (LED) retrofit options that not only can reduce the electric bill for their customers but also provide attractive alternatives to conventional products, in this case accent lighting for BPA's historical artwork.

Miller, Naomi

2011-07-01T23:59:59.000Z

323

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

691 - 4700 of 31,917 results. 691 - 4700 of 31,917 results. Download PQL: Order (2013-CE-27001) DOE ordered P.Q.L., Inc. to pay a $8,000 civil penalty after finding PQL had failed to certify that various basic models of medium base compact fluorescent lamps, general service fluorescent lamps, fluorescent lamp ballasts, and illuminated exit signs comply with the applicable energy conservation standards. http://energy.gov/gc/downloads/pql-order-2013-ce-27001 Download Information Request http://energy.gov/management/downloads/information-request Download EA-1170: Final Environmental Assessment Area 5 Radioactive Waste Management Site Access Improvement at the Nevada Test Site http://energy.gov/nepa/downloads/ea-1170-final-environmental-assessment Download Nuclear Energy Research and Development Roadmap

324

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

91 - 1700 of 26,777 results. 91 - 1700 of 26,777 results. Download Report to the President on Capturing Domestic Competitive Advantage in Advanced Manufacturing Report to the President on Capturing Domestic Competitive Advantage in Advanced Manufacturing http://energy.gov/eere/downloads/report-president-capturing-domestic-competitive-advantage-advanced-manufacturing Download PQL: Order (2013-CE-27001) DOE ordered P.Q.L., Inc. to pay a $8,000 civil penalty after finding PQL had failed to certify that various basic models of medium base compact fluorescent lamps, general service fluorescent lamps, fluorescent lamp ballasts, and illuminated exit signs comply with the applicable energy conservation standards. http://energy.gov/gc/downloads/pql-order-2013-ce-27001 Download EIS-0321: Draft Environmental Impact Statement

325

Overcoming Degradation in Organic Photovoltaics: Illuminating the Role of Fullerene Functionalization: Preprint  

DOE Green Energy (OSTI)

Photobleaching rates are investigated for thin films of poly(3-hexylthiophene) (P3HT) blends employing either an indene-C60 bisadduct (ICBA) or [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the electron acceptor. Relative to the bisindene, PCBM significantly enhances resistance to photobleaching of the P3HT donor polymer. We tentatively attribute a decrease in the charge transfer rate as the mechanism responsible for the more rapid photobleaching in the sample containing the bisindene adduct. In order to elucidate the influence of the photobleaching rate on the initial performance of unencapsulated devices, we also monitored the time-dependent behavior for P3HT:fullerene inverted devices. Under conditions of constant illumination, we observe essentially identical behavior in device performance parameters regardless of the energy levels of the electron acceptor. We conclude that over the time frame measured for these devices, the primary degradation mechanism of the active layer is independent of the electron acceptor, despite the enhanced tolerance to photobleaching it may impart to the donor material.

Lloyd, M. T.; Garcia, A.; Berry, J. J.; Reese, M. O.; Ginley, D. S.; Olson, D. C.

2011-07-01T23:59:59.000Z

326

Normalization of the scattered light from an isolated defect illuminated by a Gaussian beam  

SciTech Connect

The intensity distribution of the beam from a laser operated in the zero order configuration for the transverse electromagnetic field (TEM/sub 00/ mode) is Gaussian in a plane perpendicular to the axis of the beam. In some applications it is desirable to have a uniform intensity over a certain region in space. For example, when a Gaussian beam is incident on a smooth surface containing small isolated defects, the light scattered by a defect will depend on the position of the defect relative to the center of the beam. In the past, several techniques have been devised to convert a Gaussian intensity profile into a uniform intensity over a specified region in space. In the present work a different approach is taken. A method of normalization is described which makes direct use of the Gaussian intensity distribution of the TEM/sub 00/ mode. By this method the amount of light scattered by a defect can be normalized to the value which would be observed if the defect were located at the center of the beam, for a defect small in size compared with the 1/e/sup 2/ diameter of the Gaussian profile. The normalization requires that three measurements be made of the scattering by the defect for an arbitrary location of the defect relative to the center of the Gaussian beam, and that the 1/e/sup 2/ radius of the Gaussian beam and the interval between adjacent illuminated spots on the surface are known. Experimental data verifying the theory were obtained from isolated defects on a superfinished spherical surface.

Klingsporn, P.E.

1980-07-01T23:59:59.000Z

327

An Energy-Stabilized Varied-Line-Space-Monochromator UndulatorBeam Line for PEEM Illumination and Magnetic Circular Dichroism  

Science Conference Proceedings (OSTI)

A new undulator beam line has been built and commissioned at the Advanced Light Source for illumination of the PEEM3 microscope. The beam line delivers high flux beams over an energy range from C1s through the transition metals to include the M edges of the magnetic rare earth elements. We present details of the optical design, and data on the performance of the zero-order tracking of the photon energy.

Warwick, Tony; McKinney, Wayne; Domning, Ed; Doran, Andrew; Padmore, Howard

2006-06-01T23:59:59.000Z

328

Phosphors for LED lamps  

DOE Patents (OSTI)

A phosphor, a phosphor blend including the phosphor, a phosphor prepared by a process, and a lighting apparatus including the phosphor blend are disclosed. The phosphor has the formula (Ca.sub.1-p-qCe.sub.pK.sub.q).sub.xSc.sub.y(Si.sub.1-rGa.sub.r).sub.zO.su- b.12+.delta. or derived from a process followed using disclosed amounts of reactants. In the formula, (0

Murphy, James Edward; Manepalli, Satya Kishore; Kumar, Prasanth Nammalwar

2013-08-13T23:59:59.000Z

329

Nonimaging solar energy concentrators (CPC's) with fully illuminated flat receivers: A viable alternative to flat-plate collectors  

SciTech Connect

Low-concentration, stationary, nonimaging concentrators (CPC's) with flat receivers illuminated on both sides are considered as viable alternatives to flat-plate solar collectors. Closed-form, analytic formulae are derived for the geometric characteristics of two concentrator types of greatest interest (i.e., stationary collectors for year-round energy delivery), which enable calculations of collectible energy without computer ray-tracing stimulations. The relative merits of these concentrators in terms of energy collection and production costs are assessed with respect to each other as well as to flat-plate collectors.

Gordon, J.M.

1986-08-01T23:59:59.000Z

330

Decontamination Strategy for Large Area and/or Equipment Contaminated with Chemical and Biological Agents using a High Energy Arc Lamp (HEAL)  

Science Conference Proceedings (OSTI)

A strategy for the decontamination of large areas and or equipment contaminated with Biological Warfare Agents (BWAs) and Chemical Warfare Agents (CWAs) was demonstrated using a High Energy Arc Lamp (HEAL) photolysis system. This strategy offers an alternative that is potentially quicker, less hazardous, generates far less waste, and is easier to deploy than those currently fielded by the Department of Defense (DoD). For example, for large frame aircraft the United States Air Force still relies on the combination of weathering (stand alone in environment), air washing (fly aircraft) and finally washing the aircraft with Hot Soapy Water (HSW) in an attempt to remove any remaining contamination. This method is laborious, time consuming (upwards of 12+ hours not including decontamination site preparation), and requires large amounts of water (e.g., 1,600+ gallons for a single large frame aircraft), and generates large amounts of hazardous waste requiring disposal. The efficacy of the HEAL system was demonstrated using diisopropyl methyl phosphonate (DIMP) a G series CWA simulant, and Bacillus globigii (BG) a simulant of Bacillus anthracis. Experiments were designed to simulate the energy flux of a field deployable lamp system that could stand-off 17 meters from a 12m2 target area and uniformly expose a surface at 1360 W/m2. The HEAL system in the absence of a catalyst reduced the amount of B. globigii by five orders of magnitude at a starting concentration of 1.63 x 107 spores. In the case of CWA simulants, the HEAL system in the presence of the catalyst TiO2 effectively degraded DIMP sprayed onto a 100mm diameter Petri dish in 5 minutes.

Schoske, Richard [ORNL; Kennedy, Patrick [ORNL; Duty, Chad E [ORNL; Smith, Rob R [ORNL; Huxford, Theodore J [ORNL; Bonavita, Angelo M [ORNL; Engleman, Greg [ORNL; Vass, Arpad Alexander [ORNL; Griest, Wayne H [ORNL; Ilgner, Ralph H [ORNL; Brown, Gilbert M [ORNL

2009-04-01T23:59:59.000Z

331

Regioselective isotopic exchange between propane and deuterium over illuminated Pt/TiO/sub 2/ catalyst below room temperature  

SciTech Connect

Propane-deuterium isotopic exchange over an illuminated (300-410 nm) 0.5 wt% Pt/TiO/sub 2/ (anatase) catalyst was carried out at 263 K with a C/sub 3/H/sub 8//D/sub 2/ ratio of 1/15. An initial selectivity of 100% in monodeuteropropane was found with a nonoptimized quantum yield of ca. 0.01. By analogy with previous studies dealing with cyclopentane instead of propane, the photocatalytic mechanism is based on the activation of the deuteroxyl OD/sup -/ groups of titania, which are neutralized by the photoproduced holes and subsequently react with weakly adsorbed propane molecules, thus exchanging one hydrogen atom per period of adsorption. The monoexchange concerned predominantly the primary hydrogen atoms. Long-duration experiments, performed in a static photoreactor, indicated that the secondary H atoms exhibit, under these conditions, a much slower exchange rate, which induces the regioselectivity.

Herrmann, J.M.; Courbon, H.; Pichat, P.

1987-12-01T23:59:59.000Z

332

Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same  

DOE Patents (OSTI)

A planar transparent light conducting means and an improved optically activated electrical switch made using the novel light conducting means are disclosed. The light conducting means further comprise light scattering means on one or more opposite planar surfaces thereof to transmit light from the light conducting means into adjacent media and reflective means on other surfaces of the light conducting means not containing the light scattering means. The optically activated electrical switch comprises at least two stacked photoconductive wafers, each having electrodes formed on both surfaces thereof, and separated by the planar transparent light conducting means. The light scattering means on the light conducting means face surfaces of the wafers not covered by the electrodes to transmit light from the light conducting means into the photoconductive wafers to uniformly illuminate and activate the switch.

Wilcox, Russell B. (Oakland, CA)

1991-01-01T23:59:59.000Z

333

Microsoft Word - FOR WEB REMOVE EDIT - Royal Pacific 33004 based on Act One 49001 NPCP  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

(ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, illuminated exit signs) ) ) ) ) ) ) ) ) Case Number: 2013-SE-33004 NOTICE OF PROPOSED CIVIL PENALTY Date issued: July 5, 2013 Number of alleged violations: 2,555 (7 basic models; 365 days) Maximum possible assessment: $511,000 Proposed civil penalty: $51,100 The U.S. Department of Energy ("DOE") Office of the General Counsel, Office of Enforcement, alleges that Royal Pacific, Ltd. ("Royal Pacific") has violated certain provisions of the Energy Policy and Conservation Act, 42 U.S.C. § 6291 et seq. ("the Act"), and 10 C.F.R. § 429.12. Specifically, DOE alleges: 1. Royal Pacific has manufactured 1 a variety of medium base compact fluorescent lamps

334

Comparison of the spectral response of a thinned, backside illuminated CCD with a CsI coated MCP system and Kodak 101 film  

Science Conference Proceedings (OSTI)

A thinned backside illuminated CCD chip was calibrated by self consistently determining the thickness of its dead layer. Its spectral response and sensitivity were then compared with those of the calibrated Kodak 101 photographic plates and of a CsI coated microchannel plate detection system.

Li Yuelin; Crespo Lopex-Urrutia, J. R.; Tsakiris, G. D.; Sigel, R.; Volk, R.; Pina, L. [Max-Planck Institut fuer Quantenoptik, 85748, Garching (Germany); Czech Technical University, 18040 Prague (Czech Republic)

1995-05-01T23:59:59.000Z

335

Appliances and Commercial Equipment Standards  

NLE Websites -- All DOE Office Websites (Extended Search)

certain lighting system components, but with only minor exceptions (torchieres, ceiling fan light kits, exit signs, traffic signals, and metal halide lamp fixtures), has not...

336

X-ray lasers and methods utilizing two component driving illumination provided by optical laser means of relatively low energy and small physical size  

DOE Patents (OSTI)

An X-ray laser (10), and related methodology, are disclosed wherein an X-ray laser target (12) is illuminated with a first pulse of optical laser radiation (14) of relatively long duration having scarcely enough energy to produce a narrow and linear cool plasma of uniform composition (38). A second, relatively short pulse of optical laser radiation (18) is uniformly swept across the length, from end to end, of the plasma (38), at about the speed of light, to consecutively illuminate continuously succeeding portions of the plasma (38) with optical laser radiation having scarcely enough energy to heat, ionize, and invert them into the continuously succeeding portions of an X-ray gain medium. This inventive double pulse technique results in a saving of more than two orders of magnitude in driving optical laser energy, when compared to the conventional single pulse approach.

Rosen, Mordecai D. (Berkeley, CA); Matthews, Dennis L. (El Granada, CA)

1991-01-01T23:59:59.000Z

337

May 1999 POV-Ray 3.1g User Documentation Page 1 Persistence of Vision TM Ray-Tracer  

E-Print Network (OSTI)

existing wall and desk surfaces to expand the area of the traditional computer interface. With Shader Lamps. Bandyopadhyay, "Shader lamps: Animating real objects with image-based illumination," in Rendering Techniques

Sherrill, David

338

Journal of Biopharmaceutical Statistics, 19: 641657, 2009 Copyright Taylor & Francis Group, LLC  

E-Print Network (OSTI)

existing wall and desk surfaces to expand the area of the traditional computer interface. With Shader Lamps. Bandyopadhyay, "Shader lamps: Animating real objects with image-based illumination," in Rendering Techniques

Qin, Zhaohui Steve

339

Energy Basics: Fluorescent Lighting  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Fluorescent Lighting Fluorescent lamps use 25%-35% of the energy used by incandescent lamps to provide the same amount of illumination (efficacy of 30-110 lumens per watt). They...

340

Lamps in the Leaping Over  

E-Print Network (OSTI)

dusgser gyi nya mo khor lo bskor bai rgyud chen po: /rang byung lhun grub bras bu n/ /gdod naslhun grub rang char bas/ /byung ba lnga la rag ma pas/ /sku gsung thugs la rten mi cha/ /gsalbyed rig pai sgron ma yi s/ /gter khyim phung po gsal byed... / /longs sku dang nisprul pai sku/ /chu shel sgron mai dpes mtshon kyang/da lta rang la byung ma srid/ /khyung sgoma chag phur mi nus/.14 See TTT 54, p. 504, eigthth chapter of the Byang chub kyi sems rin chen khor lo: /sems nyid rigpai sgron ma yis...

Scheidegger, Daniel

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Appliances and Commercial Equipment Standards  

NLE Websites -- All DOE Office Websites (Extended Search)

Illuminated Exit Signs Illuminated Exit Signs Sign up for e-mail updates on regulations for this and other products The Department of Energy (DOE) has regulated the energy efficiency level of illuminated exit signs since 2005. Illuminated exit signs are used to indicate exit doors in schools, hospitals, libraries, government buildings, and commercial buildings of all kinds, including offices, restaurants, stores, auditoriums, stadiums, and movie theatres. Recent Updates | Standards | Test Procedures | Waiver, Exception, and Exemption Information | Statutory Authority | Historical Information | Contact Information Recent Updates There are no recent updates for this equipment. Standards for Illuminated Exit Signs The following content summarizes the energy conservation standards for illuminated exit signs. The text is not an official reproduction of the Code of Federal Regulations and should not be used for legal research or citation.

342

Energy-efficient lighting system for television  

DOE Patents (OSTI)

A light control system for a television camera which adjusts the power to lamps illuminating the camera viewing area to provide only sufficient artificial illumination necessary to keep the camera iris substantially open is described.

Cawthorne, D.C.

1986-01-29T23:59:59.000Z

343

Illuminating the Pecking Order in Off-Grid Lighting: A Demonstration of LED Lighting for Saving Energy in the Poultry Sector  

Science Conference Proceedings (OSTI)

The Lumina Project and Lighting Africa conducted a full-scale field test involving a switch from kerosene to solar-LED lighting for commercial broiler chicken production at an off-grid farm in Kenya. The test achieved lower operating costs, produced substantially more light, improved the working environment, and had no adverse effect on yields. A strategy using conventional solar-fluorescent lighting also achieved comparable yields, but entailed a six-fold higher capital cost and significantly higher recurring battery replacement costs. Thanks to higher energy and optical efficiencies, the LED system provided approximately twice the illumination to the chicken-production area and yet drew less than half the power.At the study farm, 3000 chickens were grown in each of three identical houses under kerosene, fluorescent, and LED lighting configurations. Under baseline conditions, a yearly expenditure of 1,200 USD is required to illuminate the three houses with kerosene. The LED system eliminates this fuel use and expense with a corresponding simple payback time of 1.5 years, while the solar-fluorescent system has a payback time of 9.3 years. The corresponding reduction in fuel expenditure in both cases represents a 15percent increase in after-tax net income (revenues minus expenses) across the entire business operation. The differential cost-effectiveness between the LED and fluorescent systems would be substantially greater if the fluorescent system were upsized to provide the same light as the LED system. Providing light with the fluorescent or LED systems is also far more economical than connecting to the grid in this case. The estimated grid-connection cost at this facility is 1.7 million Kenya Schillings (approximately 21,250 USD), which is nearly six-times the cost of the fluorescent system and 35-times the cost of the LED system.The LED system also confers various non-energy benefits. The relative uniformity of LED lighting, compared to the fluorescent or kerosene lighting, reduced crowding which in turn created a less stressful environment for the chickens. The far higher levels of illumination also created a better environment for the workers, while eliminating the time required for obtaining fuel and maintaining kerosene lanterns. An additional advantage of the LED system relative to the solar fluorescent system was that the former does not require a skilled technician to carry out the installation. The portable LED system lighting layout is also more easily adjusted than that of the hardwired fluorescent systems. Furthermore, switching to the LED system avoids over one metric ton of carbon dioxide emissions per house on an annual basis compared to kerosene. There is high potential for replication of this particular LED lighting strategy in the developing world. In order to estimate the scale of kerosene use and the potential for savings, more information is needed on the numbers of chickens produced off-grid, as well as lighting uses for other categories of poultry production (egg layers, indigenous broilers ). Our discovery that weight gain did not slow in the solar-fluorescent house after it experienced extended lighting outages beginning on day 14 of the 35-day study suggests that conventional farming practices in Kenyan broiler operations may call for more hours of lighting than is needed to achieve least-cost production.

Tracy, Jennifer; Mills, Evan

2010-11-06T23:59:59.000Z

344

Self-reported Impacts of LED Lighting Technology Compared to Fuel-based Lighting on Night Market Business Prosperity in Kenya  

E-Print Network (OSTI)

s kiosk illuminated by her LED lamp [1/2009] A.N. Market:25 Ksh/night) and Post 07/2008 LED-NiMH lamp (4 Ksh/night) (to charge at a shop) The [LED] lamp is very important and

Johnstone, Peter

2009-01-01T23:59:59.000Z

345

Royal Pacific: Proposed Penalty (2013-SE-33004) | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Proposed Penalty (2013-SE-33004) Proposed Penalty (2013-SE-33004) Royal Pacific: Proposed Penalty (2013-SE-33004) July 5, 2013 DOE alleged in a Notice of Proposed Civil Penalty that Royal Pacific, Ltd. failed to certify ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, and illuminated exit signs as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. Royal Pacific: Proposed Penalty (2013-SE-33004) More Documents & Publications

346

All General Counsel Reports | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 8, 2013 July 8, 2013 Class Patent Waiver W(C)2012-007 This is a request by SOLID-STATE LIGHTING ROUND 4 for a DOE Class patent waiver of domestic and foreign patent rights under agreement DE-FOA-0000792. July 8, 2013 Hicon: Proposed Penalty (2013-SE-1426) DOE alleged in a Notice of Proposed Civil Penalty that Ningbo Hicon International Industry Company, Ltd. manufactured and distributed noncompliant freezer basic model BD-200 in the U.S. July 5, 2013 Royal Pacific: Proposed Penalty (2013-SE-33004) DOE alleged in a Notice of Proposed Civil Penalty that Royal Pacific, Ltd. failed to certify ceiling fans, ceiling fan light kits, medium base compact fluorescent lamps, and illuminated exit signs as compliant with the applicable energy conservation standards. July 1, 2013

347

All General Counsel Reports | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 30, 2013 July 30, 2013 Royal Pacific: Order (2013-SE-33004) DOE ordered Royal Pacific, Ltd. to pay a $8,000 civil penalty after finding Royal Pacific had failed to certify that various basic models of medium base compact fluorescent lamps, ceiling fans, ceiling fan light kits, and illuminated exit signs comply with the applicable energy conservation standards. July 29, 2013 DOE Retrospective Review Plan and Burden Reduction Report July 29, 2013 July 24, 2013 Dialight: Proposed Penalty (2013-CE-4902) DOE alleged in a Notice of Proposed Civil Penalty that Dialight Corporation failed to certify a variety of traffic signal modules and pedestrian modules as compliant with the applicable energy conservation standards. July 23, 2013 Trastar: Proposed Penalty (2013-CE-49003)

348

EXIT INTERVIEW SUMMARY FORM Life after Rice...  

E-Print Network (OSTI)

and may contact TIAA-CREF or Fidelity directly to discuss your options regarding the funds. (TIAA-CREF: www.tiaa-cref.org or 800-842-2776; Fidelity:www.netbenefits.fidelity.com or 800-642-7131). * 403(b-fund. If you enrolled, contact TIAA-CREF or Fidelity directly to discuss your options regarding these funds

349

University Ave. UniversityAve.Exit  

E-Print Network (OSTI)

Parking Services Fleet Services Dept. Bourns Hall Winston Chung Hall (EBU2) Health Services Campus Surge Services Genomics Psychology Arts 166 Performance Lab Humanities 1500 Highlander Hall Human Resources Chemical Sciences USDA Salinity Laboratory Fawcett Laboratory Rivera Library Bell Tower Sproul Hall Cottage

350

Fluorescent fixtures and ballasts  

SciTech Connect

The basic parameters of a fluorescent lighting system that affect the illumination level are discussed. The parameters include the thermal performance of the fixture and the ballast factor, voltage regulation, and thermal regulation of the ballast/lamp system. Fixtures determine the minimum lamp-wall temperature of the lamps and are described as hot or cold. That is, the lamp-wall temperatures can vary from 39 to 61/sup 0/C. In general, cool fixtures tend to provide higher light levels and are more efficacious for a given ballast/lamp system. Solid-state fluorescent ballast/lamp systems have been measured and show a variation in light output from 6170 to 3780 lumens for the two-lamp, F-40, T-12, rapid-start lamps. Lighting designers must obtain this information in order to accurately predict illumination levels in a space.

Verderber, R.R.

1984-05-01T23:59:59.000Z

351

EUV Resists: Illuminating the challenges  

SciTech Connect

As extreme ultraviolet (EUV) lithography enters the commercialization phase with potential introduction at the 3x nm half-pitch node in 2013, the attention of advanced EUV resist research has turned to addressing patterning at 16-nm half pitch and below. Whereas line-edge roughness is the primary concern at 2x half pitch and larger, research at the 16-nm half pitch level is uncovering broader.

Naulleau, Patrick; Anderson, Christopher; George, Simi

2011-06-01T23:59:59.000Z

352

Bright Idea Illuminates LED Standards  

Science Conference Proceedings (OSTI)

... the pulse measurement results that LED manufacturers use. ... that the optical and electrical characteristics of ... last much longer at lower temperatures. ...

2011-04-25T23:59:59.000Z

353

Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling  

Science Conference Proceedings (OSTI)

This paper presents a Concurrent Brightness and Contrast Scaling (CBCS) technique for a cold cathode fluorescent lamp (CCFL) backlit TFT-LCD display. The proposed technique aimsat conserving power by reducing the backlight illumination while retaining ...

Wei-Chung Cheng; Yu Hou; Massoud Pedram

2004-02-01T23:59:59.000Z

354

Fluorescent Lighting  

Energy.gov (U.S. Department of Energy (DOE))

Fluorescent lamps use 25%-35% of the energy used by incandescent lamps to provide the same amount of illumination (efficacy of 30-110 lumens per watt). They also last about 10 times longer (7,000-24,000 hours).

355

Reading Municipal Light Department - Business Lighting Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reading Municipal Light Department - Business Lighting Rebate Reading Municipal Light Department - Business Lighting Rebate Program Reading Municipal Light Department - Business Lighting Rebate Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Commercial Customers: $10,000 per calendar year Municipal Customers: $15,000 per calendar year Program Info State Massachusetts Program Type Utility Rebate Program Rebate Amount T-8/T-5 Lamp with Electronic Ballasts: $11 - $35/fixture Interior High Output Lamp with Electronic Ballasts: $100/fixture De-lamping: $4 - $9/lamp Lighting Sensors: $20/sensor LED Exit Signs: $20/fixture Provider Incentive Programs

356

The effect of lighting system components on lighting quality, energy use, and life-cycle cost  

SciTech Connect

A computational method was developed to examine the effect of lamp, ballast, and fixture selection on the quality and quantity of illumination, energy consumption, and life-cycle cost of lighting systems. Applying this analysis to lighting layouts using different lamp/ballast/fixture combinations suggested that combinations with higher lumen outputs reduced the uniformity of the illuminance distribution at the workplace but did not reduce visibility levels. The use of higher lumen output lamp/ballast/fixture systems and higher efficiency components tended to reduce life-cycle costs as long as the premium cost of the components was not too high.

Rubinstein, F.; Clark, T.; Siminovitch, M.; Verderber, R.

1986-07-01T23:59:59.000Z

357

ILLUMINATION OF 80-INCH BUBBLE CHAMBER  

SciTech Connect

A cylindrical condensing system whose geometry allows light to be collected along the length of narrow tubular sources and to pass through a restricted port area is used. The quantity of light collected is many times that possible to obtain with axially symmetric lenses. The optical arrangement is described. Other unique features include the use of plano reilectors to extend optically the flash tube and condenser lengths and the provision of a spot plate to eliminate surface reflections from the chamber window. (auth)

Rosin, S.

1962-01-01T23:59:59.000Z

358

Advanced illumination techniques for GPU volume raycasting  

Science Conference Proceedings (OSTI)

Volume raycasting techniques are important for both visual arts and visualization. They allow an efficient generation of visual effects and the visualization of scientific data obtained by tomography or numerical simulation. Thanks to their flexibility, ...

Markus Hadwiger; Patric Ljung; Christof Rezk Salama; Timo Ropinski

2008-12-01T23:59:59.000Z

359

5 ILLUMINATING DISCOVERY Researcher warns of high  

E-Print Network (OSTI)

-pick, wholesale, processing, juice, organic, and export sectors of the apple industry. Cornell apple breeder Susan, biofuel feedstock labeling, and germination issues and seed treatments and their potential phytotoxic

Keinan, Alon

360

NIST Light Source Illuminates Fusion Power Diagnostics  

Science Conference Proceedings (OSTI)

... Their measurement tool also is used in incandescent light bulbsit's the element tungsten. Published with permission of ITER. ...

2012-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Defeating passive eavesdropping with quantum illumination  

E-Print Network (OSTI)

A two-way protocol for defeating passive eavesdropping is proposed. For each information bit, Alice sends Bob T sec of signal-beam output from a spontaneous parametric down-converter over a pure-loss channel while retaining ...

Shapiro, Jeffrey H.

362

7.0 Flatten Illumination (Background subtraction)  

Science Conference Proceedings (OSTI)

... the paste control by showing the window: Windows -> Show Paste ... button in the B&C window) , which will ... the photograph holding a flash above his ...

363

Rod-to-rod spacing illuminating device  

DOE Patents (OSTI)

A system for obtaining an image of an object includes at least one light source having an incandescent filament. An image of the filament is projected onto an object to be observed. Using light reflected from the object, an image of the object is generated. Such a system may employ a television camera to generate the image, and is especially suited for remote observation of objects.

Fodor, G.; Gaal, P.S.

1984-03-14T23:59:59.000Z

364

Condenser for illuminating a ring field  

DOE Patents (OSTI)

A series of segments of a parent aspheric mirror having one foci at at a si-point source of radiation and the other foci at the radius of a ring field have all but one or all of their beams translated and rotated by sets of mirrors such that all of the beams pass through the real entrance pupil of a ring field camera about one of the beams and fall onto the ring field radius as a coincident image as an arc of the ring field.

Sweatt, William C. (Albuquerque, NM)

1994-01-01T23:59:59.000Z

365

Condenser for illuminating a ring field  

DOE Patents (OSTI)

A series of segments of a parent aspheric mirror having one foci at a point source of radiation and the other foci at the radius of a ring field have all but one or all of their beams translated and rotated by sets of mirrors such that all of the beams pass through the real entrance pupil of a ring field camera about one of the beams and fall onto the ring field radius as a coincident image as an arc of the ring field. 5 figs.

Sweatt, W.C.

1994-11-01T23:59:59.000Z

366

White LED for general illumination applications  

E-Print Network (OSTI)

In the 21st century, mankind faces problem of energy crisis through depletion of fossil fuels as well as global warning through the production of excessive greenhouse gases. Hence, there is an urgent need to look for new ...

Li, Fung Yuen Ken

2007-01-01T23:59:59.000Z

367

booktitle Illuminating Engineering Society IES Annual Conference  

NLE Websites -- All DOE Office Websites (Extended Search)

above the reference window condition which was defined as the same glazed clerestory window but with an interior Venetian blind slat angle set to the cut off angle for the...

368

United Illuminating Co | Open Energy Information  

Open Energy Info (EERE)

Yes Activity Distribution Yes Alt Fuel Vehicle Yes Alt Fuel Vehicle2 Yes References EIA Form EIA-861 Final Data File for 2010 - File1a1 Energy Information Administration...

369

Tailored edge-ray reflectors for illumination  

SciTech Connect

The edge-ray principle can be used to tailor a reflector. However, one set of edge rays already fully determines the reflector profile. We present a design method for tailoring compact compound elliptical concentrator (CEC)-type reflectors to a given source and a desired angular power distribution. Two reflected images of the source, one on each side of the source, contribute together with the direct radiation from the source to produce the desired power distribution. We determine the reflector profile by numerically solving a differential equation. No optimization is required. Beyond the angular region in which the power distribution can be strictly controlled, the power drops to zero in a finite decay range. This decay range becomes narrower as the reflector increases in size. We show a reflector for producing a strictly constant irradiance from [minus] 43 to 43 deg from a cylindrical source of constant brightness. The reflector extends to a maximum distance of 8 source diameters. No power is radiated beyond [plus minus] 50 deg.

Ries, H.R.; Winston, R. (Enrico Fermi Institute and Department of Physics, The University of Chicago, Chicago, Illinois 60637 (United States))

1994-04-01T23:59:59.000Z

370

Energy-efficient lighting system for television  

DOE Patents (OSTI)

A light control system for a television camera comprises an artificial light control system which is cooperative with an iris control system. This artificial light control system adjusts the power to lamps illuminating the camera viewing area to provide only sufficient artificial illumination necessary to provide a sufficient video signal when the camera iris is substantially open.

Cawthorne, Duane C. (Amarillo, TX)

1987-07-21T23:59:59.000Z

371

February 17, 1999 1 Bullock et al. Deployment of Fiber Optic Lane Use Indication Signs Using a Distributed  

E-Print Network (OSTI)

February 17, 1999 1 Bullock et al. Deployment of Fiber Optic Lane Use Indication Signs Using be illuminated using either polished fiber optic bundles illuminated by a halogen lamp or LED's. Since LED for these fiber optic lane indication signs. DEPLOYMENT HISTORY One of the first installation of fiber optic signs

Bullock, Darcy

372

The RABiT: A Rapid Automated Biodosimetry Tool for radiological triage. II. Technological developments  

E-Print Network (OSTI)

of the illumination path with the dichroic used for merging light from the UV light emitting diode (LED) exposed UV light source based on a high intensity Light Emitting Diode (LED) (Hamamatsu Photonics, Bridge camera (CMOS). Sample illumination is provided from a mercury lamp (Hg) and an ultraviolet light emitting

Brenner, David Jonathan

373

Research Directed at Developing a Classical Theory to Describe Isotope Separation of Polyatomic Molecules Illuminated by Intense Infrared Radiation. Final Report for period May 7, 1979 to September 30, 1979; Extension December 31, 1997  

DOE R&D Accomplishments (OSTI)

This final report describes research on the theory of isotope separation produced by the illumination of polyatomic molecules by intense infrared laser radiation. This process is investigated by treating the molecule, sulfur hexafluoride, as a system of seven classical particles that obey the Newtonian equations of motion. A minicomputer is used to integrate these differential equations. The particles are acted on by interatomic forces, and by the time-dependent electric field of the laser. We have a very satisfactory expression for the interaction of the laser and the molecule which is compatible with infrared absorption and spectroscopic data. The interatomic potential is capable of improvement, and progress on this problem is still being made. We have made several computer runs of the dynamical behavior of the molecule using a reasonably good model for the interatomic force law. For the laser parameters chosen, we find that typically the molecule passes quickly through the resonance region into the quasi-continuum and even well into the real continuum before dissociation actually occurs. When viewed on a display terminal, the motions are exceedingly complex. As an aid to the visualization of the process, we have made a number of 16 mm movies depicting a three-dimensional representation of the motion of the seven particles. These show even more clearly the enormous complexity of the motions, and make clear the desirability of finding ways of characterizing the motion in simple ways without giving all of the numerical detail. One of the ways to do this is to introduce statistical parameters such as a temperature associated with the distribution of kinetic energies of the single particle. We have made such an analysis of our data runs, and have found favorable indications that such methods will prove useful in keeping track of the dynamical histories.

Lamb, W. E. Jr.

1981-12-00T23:59:59.000Z

374

Ultrafast structural dynamics and isomerization in Rydberg-exited Quadricyclane  

SciTech Connect

The quadricyclane - norbornadiene system is an important model for the isomerization dynamics between highly strained molecules. In a breakthrough observation for a polyatomic molecular system of that complexity, we follow the photoionization from Rydberg states in the time-domain to derive a measure for the time-dependent structural dynamics and the time-evolving structural dispersion even while the molecule is crossing electronic surfaces. The photoexcitation to the 3s and 3p Rydberg states deposits significant amounts of energy into vibrational motions. We observe the formation and evolution of the vibrational wavepacket on the Rydberg surface and the internal conversion from the 3p Rydberg states to the 3s state. In that state, quadricyclane isomerizes to norbornadiene with a time constant of {tau}{sub 2} = 136(45) fs. The lifetime of the 3p Rydberg state in quadricyclane is {tau}{sub 1} = 320(31) and the lifetime of the 3s Rydberg state in norbornadiene is {tau}{sub 3} = 394(32).

Rudakov, Fedor M [ORNL

2012-01-01T23:59:59.000Z

375

Through-tubing whipstock to exit two casing strings  

Science Conference Proceedings (OSTI)

A specific need was identified on the Montrose platform in Amoco`s North Sea drilling operations for milling through 7-in. and 9-5/8-in. casing at 60{degree} inclination using coiled tubing. All equipment would be required to pass through 3.75-in. restrictions in the 4{1/2}-in. tubing completion string. This operation would be a first for the industry through these two casing strings using through-tubing whipstock technology. A variable-angle test fixture was designed and constructed at Amoco`s Drilling Technology Test Facility at Catoosa, Oklahoma. Available through-tubing whipstock systems from three service companies were evaluated, including: (1) TIW/The Red Baron--whipstock OD (3.67 in.), mill OD (3.75 in.), system designation (T); (2) Weatherford Enterra, Inc.--(3.75 in.), (3.75 in.), (W); and Baker Oil Tools--(3.625 in.), (3.70 in.), (B). Results are discussed.

Townsend, S.; Onyia, E.; King, G. [Amoco EPTG, Tulsa, OK (United States)

1997-05-01T23:59:59.000Z

376

Revised 01/2013 1 EXIT INTERVIEW SUMMARY  

E-Print Network (OSTI)

-eligible service, then you are fully vested and may contact TIAA-CREF or Fidelity directly to discuss your options regarding the funds. (TIAA-CREF: www.tiaa-cref.org or 800-842-2776; Fidelity: netbenefits choose to enroll and self-fund. If you enrolled, contact TIAA-CREF or Fidelity directly to discuss your

377

Entry, Exit, and Performance of Financial Market Speculators  

E-Print Network (OSTI)

Why is it that so many speculators enter financial markets when most lose money and cease trading after a short period of time? While previous explanations are mainly based on psychological biases, I develop an equilibrium model of learning by rational agents that explains these and related phenomena. Agents in my model do not know their trading abilities ex-ante. They do know, however, that most traders are unskilled, and that by trading they can gain information about their own ability. They initially experiment on a small scale and then optimally use the information uncovered by their trading profits to decide whether to continue. Competitive market makers post price quotes, recognizing the entry process of speculators, so that the rewards from speculation are endogenous. The model reconciles a number of empirical regularities: (1) On average, public traders incur losses in their speculative trades; (2) most public traders cease to trade after a short period of time; (3) survivors increase their speculative trade intensities over time; (4) on average, more experienced speculators do better; (5) on average, large traders make positive profits. I also show that learning from trade produces endogenous liquidity in financial markets. This endogenous liquidity reduces the equilibrium bid-ask spreads, reduces the effect of exogenous liquidity shocks on equilibrium asset prices, and amplifies the effect of shocks in the real side of the economy (i.e., labor market and costs of learning in this model) on equilibrium prices. Whatmotivatesnewtraderstocontinuallyenterthese [financial] markets...? A sophisticated investment strategy that results in persistent losses in one financial market? An irrational belief that they possess superior skill? The desire to gamble on their beliefs and the consumption they derive from the activity? These are important questions, the answer to which will provide insight into the overall performance of futures markets.(Hartzmark [9]) 1 1

Reza S. Mahani

2003-01-01T23:59:59.000Z

378

Entry, Flux, and Exit of Potential Vorticity in Ocean Circulation  

Science Conference Proceedings (OSTI)

The flux form of the potential vorticity (PV) equation is employed to derive simple expressions for the boundary and interior flux of PV in ocean circulation using Bernoulli functions. The formulas are discussed and physically interpreted and ...

John Marshall; Daniel Jamous; Johan Nilsson

2001-03-01T23:59:59.000Z

379

The Geometry of the Ribosomal Polypeptide Exit , M. Gerstein1  

E-Print Network (OSTI)

membranes. J Mol Biol 348, 445-57. 43. Adams, P. L., Stahley, M. R., Kosek, A. B., Wang, J. & Strobel, S. A

Gerstein, Mark

380

Puget Sound Energy - Commercial Energy Efficient Equipment Rebate Programs  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Puget Sound Energy - Commercial Energy Efficient Equipment Rebate Puget Sound Energy - Commercial Energy Efficient Equipment Rebate Programs Puget Sound Energy - Commercial Energy Efficient Equipment Rebate Programs < Back Eligibility Commercial Industrial Institutional Nonprofit Schools Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Appliances & Electronics Heat Pumps Commercial Lighting Lighting Manufacturing Program Info State District of Columbia Program Type Utility Rebate Program Rebate Amount '''Lighting''' Small Business Lighting: $3 - $190 CFLs: $3 - $12 LEDs: $10 - $25 Ceramic Metal Halide Lamps: $25 LED Exit Signs: $50 LED Traffic Signals: $5 - $20 Lighting Controls: $40 - $80 T8 Lamp Upgrade: $1 per lamp '''HVAC''' HVAC Installations (New Construction): $30/ton HVAC Replacements: $100 - $550

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

in distribution transformers for power factor correction.of the power factors at the distribution transformers, or at

Gadgil, A.J.

2008-01-01T23:59:59.000Z

382

COST EFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY BUTTONS  

E-Print Network (OSTI)

certain whether the electrical power is off or on, he may beof light. The electrical input (power, voltage and current)

Verderber, Rudy

2013-01-01T23:59:59.000Z

383

L Prize Competition Winner: 60W Incandescent Replacement Lamp  

NLE Websites -- All DOE Office Websites (Extended Search)

Prize Partners 14 15 Field Assessments: Retail Platte River Power Authority DTE Energy SMUD 16 Additional Opportunities: GATEWAY Demonstrations of LED Outdoor Lighting Reports...

384

NOPM and Availability of Framework Document for HID Lamps  

NLE Websites -- All DOE Office Websites (Extended Search)

8:48 Feb 27, 2012 8:48 Feb 27, 2012 Jkt 226001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\28FEP1.SGM 28FEP1 mstockstill on DSK4VPTVN1PROD with PROPOSALS Federal Register / Vol. 77, No. 39 / Tuesday, February 28, 2012 / Proposed Rules 11785 collections for particular program, except where required by statute. III. Questions for Comment The list below includes the questions about these reform ideas that address issues which are of greatest interest to OMB at this stage of the process. Comments addressing any other concerns, and other types of feedback, are also welcome. In addition, as was explained at the beginning of this notice, the public comments received by OMB will be posted on OMB's Web site and at http:// www.regulations.gov. Accordingly, please do not include in your comments

385

Max Tech and Beyond: High-Intensity Discharge Lamps  

E-Print Network (OSTI)

demonstration (like street lights) and commercialization andthe dominant light source for street and roadway lighting,has been a popular light source for street lighting because

Scholand, Michael

2012-01-01T23:59:59.000Z

386

Spectroscopy on Metal-Halide Lamps under Varying Gravity Conditions  

E-Print Network (OSTI)

orange street lighting), which has a slightly lower discharge conversion efficiency, but the 589 nm line. They are mainly used for applications where a high light output is desired; examples are shop lighting, street. Haverlag Copromotor: dr.ir. W.W. Stoffels Copyright c 2008 by A.J. Flikweert This research was financially

Eindhoven, Technische Universiteit

387

Max Tech and Beyond: High-Intensity Discharge Lamps  

E-Print Network (OSTI)

presents the national energy consumption profile for HIDVolume I: National Lighting Inventory and Energy Consumption

Scholand, Michael

2012-01-01T23:59:59.000Z

388

Ancient Lamps, Earrings Yield Their Secrets Under Neutron Imaging...  

NLE Websites -- All DOE Office Websites (Extended Search)

(3-D) neutron images have been taken of rare archaeological artifacts. Bronze and brass artifacts excavated at the ancient city of Petra, in present day Jordan, were recently...

389

Flash Lamp Curing of Printed Nano-Particle Films  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2009. Symposium, Controlled Processing of Nanoparticle-Based Materials and Nanostructured...

390

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

representative electricity prices, because the residentialand 11. The range of electricity prices shown in the Figs.between mar- ginal electricity prices and residential tariff

Gadgil, A.J.

2008-01-01T23:59:59.000Z

391

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

and commercial electricity tariffs in each country. Noticemar- ginal electricity prices and residential tariff~. Anelectricity prices, because the residential tariff structure

Gadgil, A.J.

2008-01-01T23:59:59.000Z

392

Candelabra and Intermediate Base Lamps Enforcement Policy Statement  

Energy.gov (U.S. Department of Energy (DOE))

The Department issued guidance today advising manufacturers, importers and private labelers that DOE will not enforce the energy conservation standards and compliance certification requirements for...

393

The Therapeutic Lamp: Treating Small-Animal Phobias  

Science Conference Proceedings (OSTI)

We all have an irrational fear or two. Some of us get scared by an unexpected visit from a spider in our house; others get nervous when they look down from a high building. Fear is an evolutionary and adaptive function that can promote self-preservation ... Keywords: Animals,Medical treatment,Games,Visualization,Augmented reality,computer graphics,augmented reality,cockroach phobia,spider phobia,arachnophobia,anxiety,anxiety disorders,phobias,phobia therapy,psychological treatment

Maja Wrzesien, Mariano Alcaniz, Cristina Botella, Jean-Marie Burkhardt, Juana Breton-Lopez, Mario Ortega, Daniel Beneito Brotons

2013-01-01T23:59:59.000Z

394

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents (OSTI)

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast. 4 figs.

Schultz, W.N.; Thomas, R.J.

1999-08-31T23:59:59.000Z

395

COST EFFECTIVENESS OF LONG LIFE INCANDESCENT LAMPS AND ENERGY BUTTONS  

E-Print Network (OSTI)

placed into light bulb sockets (Edison sockets) and the lampbe inserted into the same Edison type socket that is usedto injury. In addition, Edison sockets that are hori~

Verderber, Rudy

2013-01-01T23:59:59.000Z

396

Recycling of Fluorescent Lamp Glass into Clayey Ceramic  

Science Conference Proceedings (OSTI)

Designing a Collaborative System for Socio-Environmental Management of ... Oils Post-Consumption Residential and Commercial Clay with Two Brazilian.

397

iLamps: geometrically aware and self-configuring projectors  

Science Conference Proceedings (OSTI)

Projectors are currently undergoing a transformation as they evolve from static output devices to portable, environment-aware, communicating systems. An enhanced projector can determine and respond to the geometry of the display surface, and can be used ... Keywords: ad-hoc clusters, augmented reality, calibration, projector, quadric transfer, seamless display

Ramesh Raskar; Jeroen van Baar; Paul Beardsley; Thomas Willwacher; Srinivas Rao; Clifton Forlines

2005-07-01T23:59:59.000Z

398

iLamps: geometrically aware and self-configuring projectors  

Science Conference Proceedings (OSTI)

Projectors are currently undergoing a transformation as they evolve from static output devices to portable, environment-aware, communicating systems. An enhanced projector can determine and respond to the geometry of the display surface, and can be used ... Keywords: ad-hoc clusters, augmented reality, calibration, projector, quadric transfer, seamless display

Ramesh Raskar; Jeroen van Baar; Paul Beardsley; Thomas Willwacher; Srinivas Rao; Clifton Forlines

2006-07-01T23:59:59.000Z

399

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

1.7% of in- stalled hydroelectric capacity. Op. cit. ref [in Ig86) based on hydroelectric generation, and most of thethe still abundant hydroelectric potential of the country.

Gadgil, A.J.

2008-01-01T23:59:59.000Z

400

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

the functions of generation and distribution are separated,undertake generation, transmission, and distribution (e.g.paid by the distribution utility to the generation utility.

Gadgil, A.J.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Stadiums and arenas use efficient, high wattage lamps - Today in ...  

U.S. Energy Information Administration (EIA)

Tools; Glossary All Reports ... weather; gasoline; capacity; exports; nuclear; forecast; View All Tags ...

402

L Prize Competition Winner 60W Incandesent Replacement Lamp Update  

NLE Websites -- All DOE Office Websites (Extended Search)

soon. --Senator Jeff Bingaman, D-NM What's the Buzz? - Would You Buy A 60 Light Bulb That Lasts 20 Years? -game-changing technology L Prize Helps Federal Purchasers:...

403

Conservation Potential of Compact Fluorescent Lamps in India and Brazil  

E-Print Network (OSTI)

1988. The private sector in Brazil owned (in 1986) 40% ofElectricity Conservation in Brazil: Potential and Pro-electricity consumption in Brazil's residential sector was

Gadgil, A.J.

2008-01-01T23:59:59.000Z

404

Phosphor blends for high-CRI fluorescent lamps  

DOE Patents (OSTI)

A phosphor blend comprises at least two phosphors each selected from one of the groups of phosphors that absorb UV electromagnetic radiation and emit in a region of visible light. The phosphor blend can be applied to a discharge gas radiation source to produce light sources having high color rendering index. A phosphor blend is advantageously includes the phosphor (Tb,Y,LuLa,Gd).sub.x(Al,Ga).sub.yO.sub.12:Ce.sup.3+, wherein x is in the range from about 2.8 to and including 3 and y is in the range from about 4 to and including 5.

Setlur, Anant Achyut (Niskayuna, NY); Srivastava, Alok Mani (Niskayuna, NY); Comanzo, Holly Ann (Niskayuna, NY); Manivannan, Venkatesan (Clifton Park, NY); Beers, William Winder (Chesterland, OH); Toth, Katalin (Pomaz, HU); Balazs, Laszlo D. (Budapest, HU)

2008-06-24T23:59:59.000Z

405

Series Resonant Inverter with Contactless Transformers for Multiple LED Lamps.  

E-Print Network (OSTI)

??A half-bridge series-resonant inverter adopted to realize the quasi current source and the constant current source with a number of contactless transformers in series for (more)

Cheng, Shuen-Wen

2013-01-01T23:59:59.000Z

406

A Study on Electrodes for Capacitive Discharging UV Lamp  

Science Conference Proceedings (OSTI)

J10: Mechanical Properties and Welding Conditions of Monopile and Transition for Offshore Wind Plant J12: Microstructure and Mechanical Properties of...

407

Characterization of Fluorescent Lamp Glass Waste Powders for ...  

Science Conference Proceedings (OSTI)

The glass waste presents favorable characteristics for incorporation into clayey ceramic ... Codin, Located in Campos (RJ), to Produce Soil-Cement Blocks.

408

Zero energy-storage ballast for compact fluorescent lamps  

DOE Patents (OSTI)

A CFL ballast includes complementary-type switching devices connected in series with their gates connected together at a control node. The switching devices supply a resonant tank circuit which is tuned to a frequency near, but slightly lower than, the resonant frequency of a resonant control circuit. As a result, the tank circuit restarts oscillations immediately following each zero crossing of the bus voltage. Such rapid restarts avoid undesirable flickering while maintaining the operational advantages and high efficacy of the CFL ballast.

Schultz, William Newell (Niskayuna, NY); Thomas, Robert James (Rexford, NY)

1999-01-01T23:59:59.000Z

409

Electronic Fluorescent Lamp Ballasts Used in 4-Foot Fixtures  

Science Conference Proceedings (OSTI)

This power quality (PQ) case study presents tests performed at the EPRI Power Electronics Applications Center (PEAC) Power Quality Test Facility to characterize ballast energy performance, emissions, and immunity from a PQ perspective.

2003-12-31T23:59:59.000Z

410

Efficient Light Sources Today  

E-Print Network (OSTI)

This paper reviews new lamp and lighting technology in terms of application and economic impact. Included are the latest advances in High Intensity Discharge systems, energy saving fluorescent lamps and ballasts, and the new state of the art high performance fluorescent systems. Cost analyses will show that typical owning and operating cost reductions of 15 to 65% can be achieved without sacrificing illumination levels when the right system is chosen and properly applied.

Hart, A. L.

1982-01-01T23:59:59.000Z

411

Microsoft Word - BP Checklist.doc  

NLE Websites -- All DOE Office Websites (Extended Search)

to CFL & HID 1.2 Convert T-12 to T-8 and T-5 9.7 De-lamp 5.0 Install full floor lighting sweeps 1.4 Install occupancy sensors 3.2 Install high efficiency LED exit signs...

412

Lighting Retrofit Workbook A PRACTICAL"HOW TO" GUIDE  

E-Print Network (OSTI)

comparison for incandescent, CFL, and LED exit signs Source Type Incandescent CFL LED Power 40 watts 10/year based on a comparison of a 40 W A-lamp, a 15 W CFL, and a 5W LED, 24 hours per day, 365 days a year output, etc. · Reduced maintenance and labor costs Improvements in lighting technologies have led

Diamond, Richard

413

Linearity Testing of Photovoltaic Cells: Preprint  

DOE Green Energy (OSTI)

Photovoltaic devices are rated in terms of their peak power with respect to a specific spectrum, total irradiance, and temperature. To rate photovoltaic devices, a reference detector is required whose response is linear with total irradiance. This paper describes a procedure to determine the linearity of the short-circuit current (Isc) versus the total irradiance (Etot) by illuminating a reference cell with two lamps. A device is linear if the current measured with both lamps illuminating the cell is the same as the sum of the currents with each lamp illuminating the cell. The two-lamp method is insensitive to the light spectra or spatial nonuniformity changing with irradiance. The two-lamp method is rapid, easy to implement, and does not require operator intervention to change the irradiances. The presence of room light only limits the lowest irradiance that can be evaluated. Unlike other methods, the two-lamp method does not allow the current to be corrected for nonlinear effects.

Emery, K.; Winter, S.; Pinegar, S.; Nalley D.

2006-05-01T23:59:59.000Z

414

pubs.acs.org/cmPublished on Web 05/13/2010r 2010 American Chemical Society Chem. Mater. 2010, 22, 35273534 3527  

E-Print Network (OSTI)

- or lead-bearing solution. Light from a 300-W mercury lamp, directed through a fiber-optic light pipe in determining the photochemical reactivity. 1. Introduction When illuminated by ultraviolet (UV) light, metal, the efficiency with which absorbed light is converted to usable hydrogen is limited by the recombination

Rohrer, Gregory S.

415

Lighting practices in coal mines of the United States  

SciTech Connect

Existing conditions of underground lighting in coal mines and attitude of coal-mining States toward mine lighting are discussed as expressed in coal-mine regulations. Types of lamps available are listed. Ways of obtaining better illumination with present lighting equipment are suggested.

Hooker, A.B.; Owings, C.W.

1938-01-01T23:59:59.000Z

416

Biological applications of an LCoS-BASED PROGRAMMABLE ARRAY MICROSCOPE (PAM)  

E-Print Network (OSTI)

fluorescence microscope (PAM) for rapid, light efficient 3D imaging of living specimens. The stand-alone module fluorescence microscope. The prototype system currently operated at the Max Planck Institute incorporates a 6-position high-intensity LED illuminator, modulated laser and lamp light sources, and an Andor iXon em

Rieger, Bernd

417

Instrument Science Report WFPC2 2010-004 The Dependence of WFPC2  

E-Print Network (OSTI)

illumination. Internal lamps were used to flash the CCDs before or after external exposures of ! Cen to produce's CCD cameras degrades steadily over time because of continuous exposure to electrons and ions trapped in the Van Allen radiation belts, which permanently damage the CCD's silicon lattice and ionize its SiO2

Sirianni, Marco

418

Energy and lighting design  

SciTech Connect

Energy conserving practices in providing lighting for today's buildings are examined in this second of a two-part presentation. Discussion on light source characteristics, ballast characteristics for gaseous discharge lamps, quality and the cost of lighting, and equivalent sphere illumination are included.

Helms, R.N.

1979-12-01T23:59:59.000Z

419

A dimmable (1000:1 range) fluorescent ballast for instrument panel lighting  

SciTech Connect

A 1000:1 wide range continuously dimmable ballast is designed for fluorescent lighting of aircraft instrument panels. High voltage, low energy, 800 Hz starting pulses reliably start the lamps at all light level settings. The starting pulses alone produce the illumination at the minimum light control setting.

Lauritzen, P.O.; Jorgensen, J.A.; Meyer, S.D.; Osborn, J.G.

1983-01-01T23:59:59.000Z

420

Glossary | Building Energy Codes Program  

NLE Websites -- All DOE Office Websites (Extended Search)

General Lighting General Lighting Lighting that provides a substantially uniform level of illumination throughout an area. General lighting shall not include decorative lighting or lighting that provides a dissimilar level of illumination to serve a specialized application or feature within an area. General Service Lamp A class of incandescent lamps that provide light in virtually all directions. General service lamps are typically characterized by bulb shapes such as A, standard; S, straight side; F, flame; G, globe; and PS, pear straight. Generally Accepted Engineering Standard A specification, rule, guide, or procedure in the field of engineering, or related thereto, recognized and accepted as authoritative. Glazed Wall System A category of site-assembled fenestration products, which includes, but is

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

CLEANSPACE 'Small Debris Removal By Laser Illumination And Complementary Technologies'  

SciTech Connect

Studies show that the number of debris in Low Earth Orbit is exponentially growing despite future debris release mitigation measures considered. Especially, the already existing population of small and medium debris (between 1 cm and several dozens of cm) is today a concrete threat to operational satellites. A ground based laser solution which can remove at low expense and in a non-destructive way hazardous debris of decimetric size around selected space assets appears as one highly promising answer. This solution will be studied in the frame of CLEANSPACE project which is a part of the FP7 space theme. The overall CLEANSPACE objective is threefold: to propose an efficient and affordable global system architecture, to tackle safety regulation aspects, political implications and future collaborations, to develop affordable technological bricks and to establish roadmap for the development and the future implantation of a fully functional laser protection system. This paper will present the CLEANSPACE project.

Esmiller, Bruno [Astrium Space Transportation, 66 route de Verneuil, 78133 Les Mureaux (France); Jacquelard, Christophe [CILAS, 8 avenue Buffon - ZI La Source - BP 6319, 45063 Orleans (France)

2011-11-10T23:59:59.000Z

422

Active multispectral illumination and image fusion for retinal microsurgery  

Science Conference Proceedings (OSTI)

It has been shown that white light exposure during retinal microsurgeries is detrimental to patients. To address this problem, we present a novel device and image processing tool, which can be used to significantly reduce the amount of phototoxicity ...

Raphael Sznitman; Seth Billings; Diego Rother; Daniel Mirota; Yi Yang; Jim Handa; Peter Gehlbach; Jin U. Kang; Gregory D. Hager; Russell Taylor

2010-06-01T23:59:59.000Z

423

Specimen illumination apparatus with optical cavity for dark field ...  

Solar Photovoltaic; Solar Thermal; Startup America; Vehicles and Fuels; ... The Regents of the University of California (Oakland, CA) Application Number: 08/ 878,145:

424

High Flux Commercial Illumination Solution with Intelligent Controls  

SciTech Connect

This report summarizes the work performed at OSRAM SYLVANIA under US Department of Energy contract DE-EE0003241 for developing a high efficiency LED-based luminaire. A novel light engine module (two versions: standard and super), power supply and luminaire mechanical parts were designed and tested. At steady-state, the luminaire luminous flux is 3156 lumens (lm), luminous efficacy 97.4 LPW and CRI (Ra) 88 at a correlated color temperature (CCT) of 3507K. When the luminaire is fitted with the super version of the light engine the efficacy reaches 130 LPW. In addition, the luminaire is provided with an intelligent control network capable of additional energy savings. The technology developed during the course of this project has been incorporated into a family of products. Recently, the first product in the family has been launched.

Camil Ghiu

2012-04-30T23:59:59.000Z

425

Illuminating How Complex Oxides Turn Light into Electrical Current...  

Office of Science (SC) Website

wavelengths. Working with nanobeams (VO2 crystals micrometers in length with nano-dimensioned cross-sections) and micron-scale probes avoids many problems inherent in...

426

Coherence of an optically illuminated single nuclear spin qubit  

E-Print Network (OSTI)

We investigate the coherence properties of individual nuclear spin quantum bits in diamond [Dutt et al., Science, 316, 1312 (2007)] when a proximal electronic spin associated with a nitrogen-vacancy (NV) center is being interrogated by optical radiation. The resulting nuclear spin dynamics are governed by time-dependent hyperfine interaction associated with rapid electronic transitions, which can be described by a spin-fluctuator model. We show that due to a process analogous to motional averaging in nuclear magnetic resonance, the nuclear spin coherence can be preserved after a large number of optical excitation cycles. Our theoretical analysis is in good agreement with experimental results. It indicates a novel approach that could potentially isolate the nuclear spin system completely from the electronic environment.

Liang Jiang; M. V. Gurudev Dutt; Emre Togan; Lily Childress; Paola Cappellaro; Jacob M. Taylor; Mikhail D. Lukin

2007-07-09T23:59:59.000Z

427

Advanced illumination techniques for GPU-based volume raycasting  

Science Conference Proceedings (OSTI)

Volume raycasting techniques are important for both visual arts and visualization. They allow efficient generation of visual effects and visualization of scientific data obtained by tomography or numerical simulation. Volume-rendering techniques are ...

Markus Hadwiger; Patric Ljung; Christof Rezk Salama; Timo Ropinski

2009-08-01T23:59:59.000Z

428

Fully depleted, back-illuminated charge-coupled devices ...  

silicon layer capped by indium tin oxide and silicon dioxide. ... supported by the Department of Energy under Contract DE ... silicon for solar cell applications ...

429

How Do Standard Candles Illuminate Knowledge of the Universe...  

NLE Websites -- All DOE Office Websites (Extended Search)

the FLASH code and time on the IBM Blue GeneP at the Argonne Leadership Computing Facility (ALCF) awarded through the U.S. Department of Energy's INCITE program to conduct the...

430

The Promise of Solid State Lighting for General Illumination  

NLE Websites -- All DOE Office Websites (Extended Search)

single phosphor strat- egy is a good place to start public demonstrations showing the utility of solid state white lighting. At a later date, other strategies might replace or...

431

Resolving optical illumination distributions along an axially symmetric photodetecting fiber  

E-Print Network (OSTI)

Photodetecting fibers of arbitrary length with internal metal, semiconductor and insulator domains have recently been demonstrated. These semiconductor devices exhibit a continuous translational symmetry which presents ...

Sorin, Fabien

432

Resolving optical illumination distributions along an axially symmetric photodetecting fiber  

E-Print Network (OSTI)

Photodetecting fibers of arbitrary length with internal metal, semiconductor and insulator domains have recently been demonstrated. These semiconductor devices display a continuous translational symmetry which presents ...

Lestoquoy, Guillaume

2012-01-01T23:59:59.000Z

433

Consistent Illumination within Optical See-Through Augmented Environments  

Science Conference Proceedings (OSTI)

We present techniques which create a consistentillumination between real and virtual objects inside anapplication specific optical see-through display: theVirtual Showcase. We use projectors and cameras tocapture reflectance information from diffuse ...

Oliver Bimber; Anselm Grundhfer; Gordon Wetzstein; Sebastian Kndel

2003-10-01T23:59:59.000Z

434

Real-time realistic illumination and shading of stratiform clouds  

Science Conference Proceedings (OSTI)

Realistic rendering of clouds involves solving the complex interaction of light within the cloud and with its environment. Interactive methods achieve efficient cloud rendering by ignoring several lighting effects. However, these effects are visually ...

Antoine Bouthors; Fabrice Neyret; Sylvain Lefebvre

2006-09-01T23:59:59.000Z

435

Condenser for illuminating a ringfield camera with synchrotron emission light  

DOE Patents (OSTI)

The present invention relates generally to the field of condensers for collecting light from a synchrotron radiation source and directing the light into a ringfield of a lithography camera. The present invention discloses a condenser comprising collecting, processing, and imaging optics. The collecting optics are comprised of concave and convex spherical mirrors that collect the light beams. The processing optics, which receive the light beams, are comprised of flat mirrors that converge and direct the light beams into a real entrance pupil of the camera in a symmetrical pattern. In the real entrance pupil are located flat mirrors, common to the beams emitted from the preceding mirrors, for generating substantially parallel light beams and for directing the beams toward the ringfield of a camera. Finally, the imaging optics are comprised of a spherical mirror, also common to the beams emitted from the preceding mirrors, images the real entrance pupil through the resistive mask and into the virtual entrance pupil of the camera. Thus, the condenser is comprised of a plurality of beams with four mirrors corresponding to a single beam plus two common mirrors.

Sweatt, William C. (13027 Arroyo de Vista, Albuquerque, NM 87111)

1996-01-01T23:59:59.000Z

436

Condenser for illuminating a ringfield camera with synchrotron emission light  

DOE Patents (OSTI)

The present invention relates generally to the field of condensers for collecting light from a synchrotron radiation source and directing the light into a ringfield of a lithography camera. The present invention discloses a condenser comprising collecting, processing, and imaging optics. The collecting optics are comprised of concave and convex spherical mirrors that collect the light beams. The processing optics, which receive the light beams, are comprised of flat mirrors that converge and direct the light beams into a real entrance pupil of the camera in a symmetrical pattern. In the real entrance pupil are located flat mirrors, common to the beams emitted from the preceding mirrors, for generating substantially parallel light beams and for directing the beams toward the ringfield of a camera. Finally, the imaging optics are comprised of a spherical mirror, also common to the beams emitted from the preceding mirrors, images the real entrance pupil through the resistive mask and into the virtual entrance pupil of the camera. Thus, the condenser is comprised of a plurality of beams with four mirrors corresponding to a single beam plus two common mirrors. 9 figs.

Sweatt, W.C.

1996-04-30T23:59:59.000Z

437

ILLUMINATING THE DARKEST GAMMA-RAY BURSTS WITH RADIO OBSERVATIONS  

Science Conference Proceedings (OSTI)

We present X-ray, optical, near-infrared (IR), and radio observations of gamma-ray bursts (GRBs) 110709B and 111215A, as well as optical and near-IR observations of their host galaxies. The combination of X-ray detections and deep optical/near-IR limits establish both bursts as ''dark''. Sub-arcsecond positions enabled by radio detections lead to robust host galaxy associations, with optical detections that indicate z {approx}bursts are dark due to substantial rest-frame extinction. Using the radio and X-ray data for each burst we find that GRB 110709B requires A{sub V}{sup host}{approx}>5.3 mag and GRB 111215A requires A{sub V}{sup host}{approx}>8.5 mag (assuming z = 2). These are among the largest extinction values inferred for dark bursts to date. The two bursts also exhibit large neutral hydrogen column densities of N{sub H,{sub int}} {approx}> 10{sup 22} cm{sup -2} (z = 2) as inferred from their X-ray spectra, in agreement with the trend for dark GRBs. Moreover, the inferred values are in agreement with the Galactic A{sub V} -N{sub H} relation, unlike the bulk of the GRB population. Finally, we find that for both bursts the afterglow emission is best explained by a collimated outflow with a total beaming-corrected energy of E{sub {gamma}} + E{sub K} Almost-Equal-To (7-9) Multiplication-Sign 10{sup 51} erg (z = 2) expanding into a wind medium with a high density, M Almost-Equal-To (6-20) Multiplication-Sign 10{sup -5} M{sub Sun} yr{sup -1} (n Almost-Equal-To 100-350 cm{sup -3} at Almost-Equal-To 10{sup 17} cm). While the energy release is typical of long GRBs, the inferred density may be indicative of larger mass-loss rates for GRB progenitors in dusty (and hence metal rich) environments. This study establishes the critical role of radio observations in demonstrating the origin and properties of dark GRBs. Observations with the JVLA and ALMA will provide a sample with sub-arcsecond positions and robust host associations that will help to shed light on obscured star formation and the role of metallicity in GRB progenitors.

Zauderer, B. A.; Berger, E.; Margutti, R.; Fong, W.; Laskar, T.; Chornock, R.; Soderberg, A. M. [Department of Astronomy, Harvard University, Cambridge, MA 02138 (United States); Levan, A. J. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Olivares E, F.; Greiner, J. [Max-Planck-Institut fuer extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching (Germany); Perley, D. A.; Horesh, A.; Carpenter, J. [Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA 91225 (United States); Updike, A. C. [Department of Chemistry and Physics, Roger Williams University, Bristol, RI 02809 (United States); Tanvir, N. R. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Menten, K. M. [Max-Planck-Institut fuer Radioastronomie, D-53121 Bonn (Germany); Nakar, E. [Department of Astrophysics, Sackler School of Physics and Astronomy, Tel Aviv University, 69978 Tel Aviv (Israel); Chandra, P. [National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Ganeshkhind, Pune 411007 (India); Castro-Tirado, A. J. [Instituto de Astrofisica de Andalucia (IAA-CSIC), P.O. Box 03004, E-18080 Granada (Spain); Bremer, M. [Institut de Radioastronomie Millimetrique, 300 rue de la Piscine, F-38406 Saint Martin d'Heres (France); and others

2013-04-20T23:59:59.000Z

438

Color-accurate underwater imaging using perceptual adaptive illumination  

E-Print Network (OSTI)

Capturing color in water is challenging due to the heavy non-uniform attenuation of light in water across the visible spectrum, which results in dramatic hue shifts toward blue. Yet observing color in water is important ...

Vasilescu, Iuliu

439

The butterfly clock : illuminating the molecular mysteries of monarch migration  

E-Print Network (OSTI)

Each fall, the entire monarch butterfly population of the Eastern United States and Canada funnels into a handful of oyamel pine groves in Michoacan, Mexico, to weather the winter months. Each spring, the butterflies mate ...

Rice, Jocelyn

2007-01-01T23:59:59.000Z

440

Depth resolved wide field illumination for biomedical imaging and fabrication  

E-Print Network (OSTI)

Nonlinear microscopic imaging is relatively slow due to the sequential nature of raster scanning. Recently, this limitation was overcome by developing a 3D-resolved wide-field two-photon microscope based on the concept of ...

So, Peter T. C.

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

The design and implementation of a smartphone illuminance meter  

E-Print Network (OSTI)

The proliferation of consumer smartphones has offered new opportunities for environmental sensing and mobile computation. Recent smartphone models - equipped with GPS trackers, accelerometers, megapixel cameras and rich ...

Sparks, Devon D

2013-01-01T23:59:59.000Z

442

Illuminating Clues to the Prevention of Juvenile Diabetes  

NLE Websites -- All DOE Office Websites (Extended Search)

Prevention of IDDM requires a thorough understanding of what biological anomolies trigger the autoimmune response against pancreatic islet cells. In order to gain that...

443

Can Consumers Escape the Market? Emancipatory Illuminations from Burning Man  

E-Print Network (OSTI)

This ethnography explores the emancipatory dynamics of the Burning Man project, a one-week-long antimarket event. Practices used at Burning Man to distance consumers from the market include discourses supporting communality and disparaging market logics, alternative exchange practices, and positioning consumption as self-expressive art. Findings reveal several communal practices that distance consumption from broader rhetorics of efficiency and rationality. Although Burning Mans participants materially support the market, they successfully construct a temporary hypercommunity from which to practice divergent social logics. Escape from the market, if possible at all, must be conceived of as similarly temporary and local.

Robert V. Kozinets

2002-01-01T23:59:59.000Z

444

The United Illuminating Company - ZREC and LREC Long Term Contracts...  

Open Energy Info (EERE)

Local Government, Low-Income Residential, Multi-Family Residential, Nonprofit, Schools, State Government, Tribal Government Eligible Technologies Biomass, Fuel Cells, Landfill...

445

Large Scale Tritium Recovery from Obsolete Illumination Devices at LLNL  

Science Conference Proceedings (OSTI)

Environmental and Organically Bound Tritium / Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2)

J. M. Mintz; D. K. Spencer; D. M. Holck

446

High Efficiency Driving Electronics for General Illumination LED Luminaires  

SciTech Connect

New generation of standalone LED driver platforms developed, which are more efficient These LED Drivers are more efficient (?90%), smaller in size ( 0.15 in3/watt), lower in cost ( 12 cents/watt in high volumes in millions of units). And these products are very reliable having an operating life of over 50,000 hours. This technology will enable growth of LED light sources in the use. This will also help in energy saving and reducing total life cycle cost of LED units. Two topologies selected for next generation of LED drivers: 1) Value engineered single stage Flyback topology. This is suitable for low powered LED drivers up to 50W power. 2) Two stage boost power factor correction (PFC) plus LLC half bridge platform for higher powers. This topology is suitable for 40W to 300W LED drivers. Three new product platforms were developed to cover a wide range of LED drivers: 1) 120V 40W LED driver, 2) Intellivolt 75W LED driver, & 3) Intellivolt 150W LED driver. These are standalone LED drivers for rugged outdoor lighting applications. Based on these platforms number of products are developed and successfully introduced in the market place meeting key performance, size and cost goals.

Upadhyay, Anand

2012-10-31T23:59:59.000Z

447

Compact light source performance in recessed type luminaires  

SciTech Connect

Photometric comparisons were made with an indoor, recessed, type luminaire using incandescent, high intensity discharge and compact fluorescent lamps. The test results show substantial performance advantages, as expected, for the discharge light sources where the efficacy gains can be in the order for 400% even when including the ballast losses associated with the discharge lamps. The candlepower distribution patterns emerging from these luminaries are also different from those associated with the baseline incandescent lamps, and which are in some ways, even more desirable from a uniformity of illuminance perspective. A section on fluorescent lamp starting is also included which describes a system having excellent starting characteristics in terms of electrode starting temperature (RH/RC technique), proper operating frequency to minimize unwanted IR interactions, and satisfactory current crest factor values to help insure life performance.

Hammer, E.E.

1998-11-01T23:59:59.000Z

448

U.S. Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

21 15 12 8 9 12 1997-2013 21 15 12 8 9 12 1997-2013 To Brazil 0 0 0 0 0 0 2010-2013 Freeport, TX 2011-2012 Sabine Pass, LA 2011-2011 To Canada 6 9 8 5 8 7 2007-2013 Sweetgrass, MT 6 9 8 5 8 7 2012-2013 To Chile 0 0 0 0 0 0 2011-2013 Sabine Pass, LA 2011-2011 To China 0 0 0 0 0 0 2011-2013 Kenai, AK 2011-2011 Sabine Pass, LA 2011-2011 To India 0 0 0 0 0 0 2010-2013 Freeport, TX 2011-2012 Sabine Pass, LA 2011-2011 To Japan 0 0 0 0 0 0 2010-2013 Cameron, LA 2011-2011 Kenai, AK 2011-2012 Sabine Pass, LA 2012-2012 To Mexico 15 6 3 3 2 4 1997-2013 Nogales, AZ 10 6 3 3 2 4 2012-2013 Otay Mesa, CA 5 2011-2013 To Portugal 2012-2012 Sabine Pass, LA 2012-2012 To Russia 0 0 0 0 0 0 2007-2013 To South Korea 0 0 0 0 0 0 2009-2013 Freeport, TX

449

U.S. Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History U.S. Total 48,485 39,217 33,355 64,793 70,001 28,298 1985-2012 To Brazil 0 0 0 3,279 11,049 8,142 2007-2012 Freeport, TX 0 0 0 0 2,581 8,142 2007-2012 Sabine Pass, LA 0 0 0 3,279 8,468 0 2007-2012 To Canada 2 0 0 0 0 2 2007-2012 Buffalo, NY 2 0 0 0 2006-2010 Sweetgrass, MT 0 2 2011-2012 To Chile 0 0 0 0 2,910 0 2007-2012 Sabine Pass, LA 0 0 0 0 2,910 0 2007-2012 To China 0 0 0 0 6,201 0 2007-2012 Kenai, AK 0 0 0 0 1,127 0 2007-2012 Sabine Pass, LA 0 0 0 0 6,201 0 2007-2012 To India 0 0 0 2,873 12,542 3,004 2007-2012 Freeport, TX 0 0 0 2,873 5,993 3,004 2007-2012 Sabine Pass, LA 0 0 0 0 6,549 0 2007-2012 To Japan 2,822 2,741 5,037 2010-2012

450

U.S. Price of Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 View History U.S. Total 11.36 12.84 13.38 12.89 13.25 13.53 1997-2013 To Brazil -- -- -- -- -- -- 2010-2013 Freeport, TX 2011-2012 Sabine Pass, LA 2011-2011 To Canada 14.55 14.55 14.60 15.01 14.01 13.94 2007-2013 Sweetgrass, MT 14.55 14.55 14.60 15.01 14.01 13.94 2012-2013 To Chile -- -- -- -- -- -- 2011-2013 Sabine Pass, LA 2011-2011 To China -- -- -- -- -- -- 2011-2013 Kenai, AK 2011-2011 Sabine Pass, LA 2011-2011 To India -- -- -- -- -- -- 2010-2013 Freeport, TX 2011-2012 Sabine Pass, LA 2011-2011 To Japan -- -- -- -- -- -- 2010-2013 Cameron, LA 2011-2011 Kenai, AK 2011-2012 Sabine Pass, LA 2012-2012 To Mexico 10.13 10.36 10.40 9.91 9.77 12.81 1992-2013 Nogales, AZ 10.43 10.36 10.40 9.91 9.77 12.81 2012-2013

451

Looking for an Exit: Variations on M&As and IPOs  

sequestration potable water pollution control remediation. ... Leader of the firm's clean technology and strategic carbon counseling practice.

452

U.S. Price of Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History U.S. Total 6.23 7.69 8.40 9.53 10.54 12.82 1985-2012 To Brazil -- -- -- 7.50 11.40 11.19 2007-2012 Freeport, TX -- -- -- -- 12.74 11.19 2007-2012 Sabine Pass, LA -- -- -- 7.50 11.00 -- 2007-2012 To Canada 12.07 -- -- -- -- 13.29 2007-2012 Buffalo, NY 12.07 -- -- -- 2006-2010 Sweetgrass, MT -- 13.29 2011-2012 To Chile -- -- -- -- 13.91 -- 2007-2012 Sabine Pass, LA -- -- -- -- 13.91 -- 2007-2012 To China -- -- -- -- 12.25 -- 2007-2012 Kenai, AK -- -- -- -- 10.61 -- 2007-2012 Sabine Pass, LA -- -- -- -- 12.25 -- 2007-2012 To India -- -- -- 7.56 8.23 11.10 2007-2012 Freeport, TX -- -- -- 7.56 8.66 11.10 2007-2012 Sabine Pass, LA -- -- -- -- 7.85 -- 2007-2012

453

An Analysis of Exit-Flow Drainage Jets over the Chesapeake Bay  

Science Conference Proceedings (OSTI)

Synthetic aperture radar has shown great promise in detecting surface roughness patterns generated by atmospheric and oceanic features. Those roughness patterns that are the result of sea surface wind stress may be analyzed and related to ...

Nathaniel S. Winstead; George S. Young

2000-08-01T23:59:59.000Z

454

Sulfidation and reduction of zinc titanate and zinc oxide sorbents for injection in gasifier exit ducts  

DOE Green Energy (OSTI)

The sulfidation reaction kinetics of fine particles of zinc titanate and zinc oxide with H{sub 2}S were studied in order to test the potential of the sorbent injection hot-gas desulfurization process. Fine sorbent particles with diameter between 0.3 and 60 {mu}m were sulfided with H{sub 2}S and/or reduced with H{sub 2} in a laminar flow reactor over the temperature range of 500-900{degrees}C. Sulfidation/reduction conversion was compared for different particle sizes and sorbents with various porosities and atomic ratios of Zn and Ti. In reduction of ZnO with H{sub 2} and without H{sub 2}S, significant amount of Zn was formed and vaporized, while the presence of H{sub 2}S suppressed elemental Zn formation. This suggests that H{sub 2}S may suppress the surface reduction of ZnO and/or gaseous Zn may react with H{sub 2}S homogeneously and form fine particles of ZnS. Formation and vaporization of elemental Zn from zinc titanate sorbents was slower than from zinc oxide with and without H{sub 2}S.

Ishikawa, K. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering]|[Kawasaki Heavy Industries Ltd., Akashi, Hyogo (Japan). Technical Inst.; Krueger, C.; Flytzani-Stephanopoulos, M. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering; Jl, W.; Higgins, R.J.; Bishop, B.A.; Goldsmith, R.L. [CeraMem Corp., Waltham, MA (United States)

1995-12-31T23:59:59.000Z

455

Process for coal liquefaction by separation of entrained gases from slurry exiting staged dissolvers  

SciTech Connect

There is described an improved liquefaction process by which coal is converted to a low ash and low sulfur carbonaceous material that can be used as a fuel in an environmentally acceptable manner without costly gas scrubbing equipment. In the process, coal is slurried with a solvent, passed through a preheater and at least two dissolvers in series in the presence of hydrogen-rich gases at elevated temperatures and pressures. Solids, including mineral ash and unconverted coal macerals are separated from the condensed dissolver effluent. In accordance with the improved process, fresh hydrogen is fed to each dissolver and the entrained gas from each dissolver is separated from the slurry phase and removed from the reactor system before the condensed phase is passed to the next dissolver in the series. In accordance with another process, the feeds to the dissolvers are such that the top of each downstream dissolver is used as a gas-liquid separator.

Givens, Edwin N. (Bethlehem, PA); Ying, David H. S. (Macungie, PA)

1983-01-01T23:59:59.000Z

456

Macro Economic Instability and Business Exit: Determinants of Failures and Acquisitions of Large UK Firms  

E-Print Network (OSTI)

@}?#16;|#3;_it Lu ?h4 uLh4@|#16;L?t @?_ _#16;ttL*#3;|#16;L?t#21; #25;@#15;it EbbH#28;c uL#19; U#3;tt#16;?} L? i #16;|t Lu ?i#22; i?|h@?|tc TL#16;?|t L#3;|G R#21;#21;#21; |#4;iti t|#3;_#16;it #21;#21;#21; UL?|hL* uLh 4@UhLiUL?L4#16;U UL?_#16;|#16;L?t #16;? #15;@h... bbS#28; @?_ +LMtL? EbbS#28; #4;@#15;i t|#3;_#16;i_ |#4;i #16;4T@U| Lu 4@UhL i?#15;#16;hL?4i?| L? ?h4 ttL*#3;|#16;L?t #16...

Bhattacharjee, Arnab; Higson, Chris; Holly, Sean; Kattuman, Paul

2004-06-16T23:59:59.000Z

457

U.S. Price of Natural Gas Pipeline Exports by Point of Exit  

Gasoline and Diesel Fuel Update (EIA)

1989-2013 Eastport, ID 2011-2011 Calais, ME 17.83 6.97 5.75 4.33 3.72 4.21 2011-2011 Detroit, MI 3.67 3.96 4.42 4.42 4.26 4.02 2011-2011 Marysville, MI 3.62 3.91 4.48 4.58 4.35...

458

U.S. Price of Natural Gas Pipeline Exports by Point of Exit  

Gasoline and Diesel Fuel Update (EIA)

ID -- 7.43 4.49 5.85 4.74 1998-2011 Calais, ME -- -- 5.62 4.53 4.46 4.30 2007-2011 Detroit, MI 6.88 8.37 4.01 4.69 4.26 3.10 1996-2011 Marysville, MI 7.77 7.48 4.85 4.87 4.48...

459

U.S. Natural Gas Pipeline Exports by Point of Exit  

Annual Energy Outlook 2012 (EIA)

Eastport, ID 0 252 113 12 10 1998-2011 Calais, ME 0 0 2,131 452 1,028 6,952 2007-2011 Detroit, MI 22,904 27,220 43,980 44,275 43,690 50,347 1996-2011 Marysville, MI 9,158 8,756...

460

U.S. Natural Gas Pipeline Exports by Point of Exit  

Annual Energy Outlook 2012 (EIA)

1973-2013 Eastport, ID 2011-2011 Calais, ME 1,824 1,853 2,021 1,528 433 652 2011-2011 Detroit, MI 4,331 4,801 3,571 4,430 3,769 3,933 2011-2011 Marysville, MI 4,807 5,273 2,983...

Note: This page contains sample records for the topic "lamps illuminated exit" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

U.S. Natural Gas Pipeline Exports by Point of Exit  

U.S. Energy Information Administration (EIA)

Detroit, MI: 22,904: 27,220: 43,980: 44,275: 43,690: 50,347: 1996-2011: Marysville, MI: 9,158: 8,756: 14,925: 22,198: 41,964: 42,866: 1996-2011: Sault Ste. Marie, MI ...

462

U.S. Price of Natural Gas Pipeline Exports by Point of Exit  

U.S. Energy Information Administration (EIA)

Detroit, MI: 6.88: 8.37: 4.01: 4.69: 4.26: 3.10: 1996-2012: Marysville, MI: 7.77: 7.48: 4.85: 4.87: 4.48: 3.18: 1996-2012: Sault Ste. Marie, MI: 7.13: 8.75: 5.04: 5 ...

463

Strategies to Address the Problem of Exiting Expertise in the Electric Power Industry  

E-Print Network (OSTI)

mean scarce financial resources for system expansion, improvement and maintenance. It also could mean management system creation, business process redesign, work process automation, and outsourcing are elements automation (SCADA), AMR, mobile work management, outage management, load control systems, and CMMS are all

464

The role of E2f4 in cell cycle exit and bone development  

E-Print Network (OSTI)

Members of the E2F family of transcription factors are critical downstream effectors of the pocket protein family and mediate the regulation of genes required for cellular proliferation. The repressive E2Fs act in association ...

Miller, Emily S. (Emily Sun Young)

2009-01-01T23:59:59.000Z

465

Geometric Approaches for Reducing Burr Formation in Planar Milling by Avoiding Tool Exits  

E-Print Network (OSTI)

1999). A summary of micro-milling studies. 1st IntlT.R. (1992). Pocket milling with tool engagement detec-Burr minimization in face milling: a geometric approach.

Chu, Chih-Hsing; Dornfeld, David

2008-01-01T23:59:59.000Z

466

Circulation and Deep-Water Export at the Western Exit of the Subpolar North Atlantic  

Science Conference Proceedings (OSTI)

The current system east of the Grand Banks was intensely observed by World Ocean Circulation Experiment (WOCE) array ACM-6 during 199395 with eight moorings, reaching about 500 km out from the shelf edge and covering the water column from about ...

Friedrich A. Schott; Rainer Zantopp; Lothar Stramma; Marcus Dengler; Jrgen Fischer; Mathieu Wibaux

2004-04-01T23:59:59.000Z

467

Invest or Exit? Optimal Decisions in the Face of a Declining Profit Stream  

Science Conference Proceedings (OSTI)

Even in the face of deteriorating and highly volatile demand, firms often invest in, rather than discard, aging technologies. To study this phenomenon, we model the firm's profit stream as a Brownian motion with negative drift. At each point in time, ... Keywords: decision analysis, diffusion, finance, investment criteria, probability, sequential

H. Dharma Kwon

2010-05-01T23:59:59.000Z

468

DUCTED FAN INLET/EXIT AND ROTOR TIP FLOWIMPROVEMENTS FOR VERTICAL LIFT SYSTEMS.  

E-Print Network (OSTI)

??Ducted fan based vertical lift systems are excellent candidates to be in the group of the next generation vertical lift vehicles, with many potential applications (more)

Akturk, Ali

2010-01-01T23:59:59.000Z

469

Chimneys: Warm and Cozy or Easy Exit for Your Heat? | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Your Fireplace and Chimney Efficiency Chimneys: Keep 'em Clean... and Closed A wood stove on a stone hearth. | Photo courtesy of iStockphotoKingLouie Wood and Pellet Heating...

470

A safe-exit approach for efficient network-based moving range queries  

Science Conference Proceedings (OSTI)

Query processing on road networks has been extensively studied in recent years. However, the processing of moving queries on road networks has received little attention. This paper studies the efficient processing of moving range queries on road networks. ... Keywords: Spatial, Temporal databases

Duncan Yung; Man Lung Yiu; Eric Lo

2012-02-01T23:59:59.000Z

471

U.S. Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

To Russia 1,895 0 0 0 0 0 2007-2012 Kenai, AK 1,895 0 0 0 0 2006-2011 To South Korea 0 0 2,735 11,809 9,143 0 2007-2012 Freeport, TX 0 0 2,735 2,861 6,242 2007-2011 Sabine...

472

U.S. Price of Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

To Russia 12.12 -- -- -- -- -- 2007-2012 Kenai, AK 12.12 -- -- -- -- 2006-2011 To South Korea -- -- 6.30 7.54 9.98 -- 2007-2012 Freeport, TX -- -- 6.30 8.09 10.89 2007-2011 Sabine...

473

U.S. Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

Portugal 2012-2013 Sabine Pass, LA 2012-2012 To Russia 0 0 0 0 0 0 2007-2013 To South Korea 0 0 0 0 0 0 2009-2013 Freeport, TX 2011-2011 Sabine Pass, LA 2011-2011 To Spain 0 0 0...

474

U.S. Price of Liquefied Natural Gas Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

Sabine Pass, LA 2012-2012 To Russia 0.00 0.00 0.00 0.00 0.00 0.00 2007-2013 To South Korea 0.00 0.00 0.00 0.00 0.00 0.00 2009-2013 Freeport, TX 2011-2011 Sabine Pass, LA...

475

U.S. Natural Gas Pipeline Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

25,575 142,032 133,749 128,589 130,297 122,391 1997-2013 25,575 142,032 133,749 128,589 130,297 122,391 1997-2013 To Canada 70,735 81,695 75,846 66,473 68,325 69,733 1973-2013 Eastport, ID 6 2011-2013 Calais, ME 2,021 1,528 433 652 122 185 2011-2013 Detroit, MI 3,571 4,430 3,769 3,933 4,131 3,885 2011-2013 Marysville, MI 2,983 1,470 995 1,856 1,521 1,400 2011-2013 Sault Ste. Marie, MI 1,531 1,171 935 1,231 849 911 2011-2013 St. Clair, MI 43,917 56,075 54,114 42,609 45,524 47,795 2011-2013 Noyes, MN 76 171 316 1,331 447 445 2011-2013 Babb, MT 2011-2011 Havre, MT 184 188 174 177 183 166 2011-2013 Pittsburg, NH 2011-2013 Grand Island, NY 47 20 10 10 11 2011-2013 Massena, NY 2012-2012 Niagara Falls, NY 13,738 13,789 13,174 13,904 13,939 13,022 2011-2013 Waddington, NY

476

U.S. Price of Natural Gas Pipeline Exports by Point of Exit  

U.S. Energy Information Administration (EIA) Indexed Site

2007 2008 2009 2010 2011 2012 View 2007 2008 2009 2010 2011 2012 View History U.S. Total 6.96 8.62 4.34 4.75 4.35 3.08 1985-2012 To Canada 7.17 8.86 4.59 4.84 4.45 3.17 1985-2012 Eastport, ID -- 7.43 4.49 5.85 4.74 -- 1998-2012 Calais, ME -- -- 5.62 4.53 4.46 4.30 2007-2012 Detroit, MI 6.88 8.37 4.01 4.69 4.26 3.10 1996-2012 Marysville, MI 7.77 7.48 4.85 4.87 4.48 3.18 1996-2012 Sault Ste. Marie, MI 7.13 8.75 5.04 5.27 4.23 3.20 1999-2012 St. Clair, MI 7.24 8.96 4.62 4.86 4.45 3.11 1996-2012 Noyes, MN -- -- -- -- 3.90 3.46 1998-2012 Warroad, MN 1999-2002 Babb, MT -- -- -- -- 3.39 -- 1996-2012 Havre, MT 6.16 8.14 3.63 4.05 3.82 2.40 1998-2012 Port of Morgan, MT 1998-2006 Sherwood, ND 1999-2006 Pittsburg, NH -- 7.61 -- -- 7.54 2.62 2007-2012

477

Lansing Board of Water and Light - Hometown Energy Savers® Residential  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Savers® Savers® Residential Rebates Lansing Board of Water and Light - Hometown Energy Savers® Residential Rebates < Back Eligibility Low-Income Residential Multi-Family Residential Residential Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Manufacturing Appliances & Electronics Construction Heating Heat Pumps Commercial Lighting Lighting Water Heating Other Program Info State Michigan Program Type Utility Rebate Program Rebate Amount Small Business Direct Install Program: No cost or purchase necessary for participation Custom $0.08/kWh Commercial Cooking Equipment: Varies Commercial Refrigeration Equipment: Varies Lighting Compact Fluorescent Lamps: $1.50-$8 Compact Fluorescent Lamp Fixtures: $20 LED Lamps: $5-$15 LED Fixtures: $20 LED Exit Signs: $12.50

478

Lighting Research Group: Facilities: Goniometer  

NLE Websites -- All DOE Office Websites (Extended Search)

Goniometer Goniometer gonio-photometer Gonio-Photometer Gonio-photometer | Integrating sphere | Power analyzer | Spectro-radiometer The gonio-photometer (or goniometer for short) is able to measure the illuminance from each portion of a lamp or fixture. There are three main components to the goniometer: (1) the rotating table that the fixture or lamp is placed on, (2) the long arm with a mirror on the end that rotates around the fixture and (3) a light sensor that measures the light reflected by the mirror. The light source (whether it is in a fixture or not) is placed in the middle of the goniometer, sitting on the rotating table. The rotating table can be adjusted up and down to make sure that the light source is in the very center of the goniometer. When the lamp is positioned this way, the

479

Electronic ballast improves efficiency  

SciTech Connect

As part of a DOE program, the performance of various electronic ballasts for fluorescent lamps have been evaluated relative to high quality core-coil ballasts under similar ambient conditions. The results of this investigation are reported. Real energy savings can exceed 40% while comfort and quality of illumination are improved. A detailed comparison of two types of ballast is presented. Voltage effects and temperature effects as well as dimming features are discussed. Light levels, power energy consumption, and daylighting are also treated. It is concluded that, with the electronic ballast, an annual payback of $8.20/yr is possible as compared to the core-coil ballasted fluorescent lamp. Further, much greater flexibility in use is possible with the electronic ballast equipped lamp. (MJJ)

Verderber, R.R.

1980-11-01T23:59:59.000Z

480

L&E: Participate in a field test for high-efficiency troffer lighting. |  

NLE Websites -- All DOE Office Websites (Extended Search)

Lighting & Electrical » Participate Lighting & Electrical » Participate in a field test for high efficiency troffer lighting Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Participate in a field test for high-efficiency troffer lighting 50% of all commercial fluorescent lighting fixtures are recessed troffers in 1'x4', 2'x2' and 2'x4' configurations, in operation for more than 10 hours a day on average and collectively consuming more than 87 TWh of electricity annually. The Lighting & Electrical team supported the market introduction of high-efficiency troffers by developing a specification that allows for

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481

L&E - high efficiency lighting for parking structure | The Better Buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

structure structure Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Adopt high-efficiency lighting for your parking structure Parking structures and garages are typically lighted by older HID lighting technology without any energy-saving controls. The latest high-efficiency alternatives with energy-saving controls-including light-emitting diode (LED), induction, and fluorescent technology options-can save building owners over 40% on their parking lot lighting bills while delivering additional benefits such as better-lighted spaces. The Lighting & Electrical team developed a performance specification that

482

A high-efficiency indirect lighting system utilizing the solar 1000 sulfur lamp  

E-Print Network (OSTI)

and Renewable Energy, Office of Building Technology, State andand Renewable Energy, Office of Building Technology, State and

Siminovitch, Michael; Gould, C.; Page, E.

1997-01-01T23:59:59.000Z

483

L&E: Refrigerated Display Case | The Better Buildings Alliance  

NLE Websites -- All DOE Office Websites (Extended Search)

Lighting & Electrical » Adopt the Lighting & Electrical » Adopt the refrigerated display case lighting performance specification and start saving on your case lighting costs Activities Technology Solutions Teams Lighting & Electrical Space Conditioning Plug & Process Loads Food Service Refrigeration Laboratories Energy Management & Information Systems Public Sector Teams Market Solutions Teams Adopt the refrigerated display case lighting performance specification and start saving on your case lighting costs The LED Refrigerated Display Case Lighting Specification delivers nearly 50% energy savings compared to typical display case lighting. If all retail refrigerated display cases switched today to LED systems, over 2.1 TWh of electricity could be saved annually. LED Refrigerated Display Case Lighting Specification

484

Defining the Effectiveness of UV Lamps Installed in Circulating Air Ductwork  

SciTech Connect

Ultraviolet; UV; UVC; UVGI; HVAC; ductwork; mold; fungus; effectiveness; microbial; dose; irradiance; reflectance; bacillis; aspergillis

Douglas VanOsdell; Karin Foarde

2002-11-30T23:59:59.000Z

485

NIST Spectrum of Th-Ar Hollow Cathode Lamps in the 691 nm ...  

Science Conference Proceedings (OSTI)

... such as the Cryogenic High-Resolution IR Echelle Spectrograph ([CRIRES]), ESO's new IR spectrograph at the Very Large Telescope in Chile. ...

2011-12-13T23:59:59.000Z

486

A light diet for a giant appetite: An assessment of China's proposed fluorescent lamp standard  

E-Print Network (OSTI)

Green Lights Program to promote efficient lighting products through public education, consumer incentives, national product testing, and investments

Lin, Jiang

2002-01-01T23:59:59.000Z

487

Characterization of a high-gain picosecond flash-lamp-pumped Nd:YAG regenerative amplifier  

Science Conference Proceedings (OSTI)

We evaluate the performance of a novel 10-Hz picosecond Nd:YAG regenerative amplifier configured as a self-filtering unstable resonator. Pulse energies of approx.60 mJ in approx.100 psec at 1.06 ..mu..m are achieved using a single 6-mm-diameter Nd:YAG rod, while mode-matching requirements are minimized.

Dawson, M.D.; Schroeder, W.A.; Norwood, D.P.; Smirl, A.L.; Weston, J.; Ettelbrick, R.N.; Aubert, R.

1988-11-01T23:59:59.000Z

488

Contribution to the numerical study of turbulence in high intensity discharge lamps  

SciTech Connect

We present in this paper a comparison between results obtained with a laminar and turbulent models for high-pressure mercury arc. The two models are based on the resolution of bidimensional time-dependent equations by a semi-implicit finite-element code. The numerical computation of turbulent model is solved with large eddy simulation model; this approach takes into account the various scales of turbulence by a filtering method on each scale. The results show the quantitative influence of turbulence on the flow fields and also the difference between laminar and turbulent effects on the dynamic thermal behaviour and on the characteristics of the discharge.

Kaziz, S.; Ben Ahmed, R.; Helali, H.; Gazzah, H.; Charrada, K. [Unite d'Etude des Milieux Ionises et Reactifs, IPEIM, 5019 route de Kairouan Monastir (Tunisia)

2011-07-15T23:59:59.000Z

489

Whole Product Performance for 2X High-Efficiency Incandescent Lamps  

Science Conference Proceedings (OSTI)

FirstEnergy (FE) approached EPRIs Lighting Lab in 2011 to validate the performance of a newly developed 2X incandescent lighting technology developed by a manufacturing company in their service territory. This manufacturer claimed that their product was identical in light output, but twice (2X) as efficient as traditional 100W incandescent bulbs. In collaboration with FE, EPRI conducted a series of tests to independently verify the energy and photometric performance of this ...

2012-11-12T23:59:59.000Z

490

Tungsten Lamps as an Affordable Light Source for Testing of Photovoltaic Cells  

Science Conference Proceedings (OSTI)

An improved Tungsten light source system for photovoltaic cell testing made from low-cost, commercially available materials is presented as an alternative to standard expensive testing equipment. In this work, spectral correction of the Tungsten light ... Keywords: I-V measurement, Light source, Photovoltaic, Testing

Jeydmer Aristizabal; Badr Omrane; Clint Landrock; Sasan Vosoogh-Grayli; Yindar Chuo; Jasbir N. Patel; Bozena Kaminska; Carlo Menon

2011-06-01T23:59:59.000Z

491

RFIG lamps: interacting with a self-describing world via photosensing wireless tags and projectors  

Science Conference Proceedings (OSTI)

This paper describes how to instrument the physical world so that objects become self-describing, communicating their identity, geometry, and other information such as history or user annotation. The enabling technology is a wireless tag which acts as ... Keywords: augmented reality, human-machine communication, image stabilization, projector, radio frequency identification, stucture from motion

Ramesh Raskar; Paul Beardsley; Jeroen van Baar; Yao Wang; Paul Dietz; Johnny Lee; Darren Leigh; Thomas Willwacher

2004-08-01T23:59:59.000Z

492

DOE Requires Manufacturer and Labeler to Cease Sale of Incandescent Reflector Lamps  

Energy.gov (U.S. Department of Energy (DOE))

DOE has issued Notices of Non-Compliance Determination to Westinghouse Lighting Corporation and Fuzhou Sunlight Lighting Electrical Appliance Company requiring that they halt the sale of 8 basic...

493

Research on the Best Market Applications for LightLab Energy-Saving Lamps.  

E-Print Network (OSTI)

?? Nowadays, lighting represents 20% of the global electricity consumption. Light can be produced using different technologies but more than 100 years after its invention, (more)

Vilalta Cea, Raul

2010-01-01T23:59:59.000Z

494

Accurate modelling of Roman lamps in conimbriga using high dynamic range  

Science Conference Proceedings (OSTI)

The Human Visual System has a remarkable ability to acquire colour and contrast of all the things that surround us. This is particularly evident in extreme lighting conditions such as bright light or dark environments. However, it is simply not possible ...

A. Gonalves; L. Magalhes; J. Moura; A. Chalmers

2008-12-01T23:59:59.000Z

495

RFIG lamps: interacting with a self-describing world via photosensing wireless tags and projectors  

Science Conference Proceedings (OSTI)

This paper describes how to instrument the physical world so that objects become self-describing, communicating their identity, geometry, and other information such as history or user annotation. The enabling technology is a wireless tag which acts as ... Keywords: augmented reality, human-machine communication, image stabilization, projector, radio frequency identification, stucture from motion

Ramesh Raskar; Paul Beardsley; Jeroen van Baar; Yao Wang; Paul Dietz; Johnny Lee; Darren Leigh; Thomas Willwacher

2005-07-01T23:59:59.000Z

496