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Note: This page contains sample records for the topic "led street light" 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.


1

Modeling LED street lighting  

Science Journals Connector (OSTI)

LED luminaires may deliver precise illumination patterns to control light pollution, comfort, visibility, and light utilization efficiency. Here, we provide simple equations to...

Moreno, Ivan; Avendaño-Alejo, Maximino; Saucedo-A, Tonatiuh; Bugarin, Alejandra

2014-01-01T23:59:59.000Z

2

LED Street Lighting Conversion Workshop Presentations  

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

This page provides links to the presentations given at the National League of Cities Mobile Workshop, LED Street Lighting Conversion: Saving Your Community Money, While Improving Public Safety,...

3

Financing Guidance for LED Street Lighting Programs  

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

Financing an LED street lighting replacement program can present a hurdle for many system owners, even if the planned transition offers very favorable economics. Replacing the existing system requires a significant budget, particularly as the scope of the program increases. Cities such as Los Angeles and Seattle have invested many millions of dollars into their (very successful) LED street lighting replacement programs.

4

Pittsburgh LED Street Lighting Research Project Performance Criteria  

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

A Pittsburgh LED Street Lighting Research Project document on Technical and Aesthetic Performance for Business District LED Lighting.

5

Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop  

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

Los Angeles, CA to someone Los Angeles, CA to someone by E-mail Share Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Facebook Tweet about Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Twitter Bookmark Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Google Bookmark Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Delicious Rank Solid-State Lighting: Municipal Consortium LED Street Lighting Workshop Presentations and Materials-Los Angeles, CA on Digg Find More places to share Solid-State Lighting: Municipal Consortium

6

Considering LEDs for Street and Area Lighting  

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

View Jim Brodrick's keynote video from the September 2009 IES Street and Area Lighting Conference in Philadelphia.

7

Text-Alternative Version: Evaluating LED Street Lighting Solutions  

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

Below is the text-alternative version of the Evaluating LED Street Lighting Solutions webcast, held July 20, 2010.

8

Webcast: Evaluating LED Street Lighting Solutions  

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

In this July 20, 2010 webcast, Edward Smalley of Seattle City Light provided an update on DOE Municipal Solid-State Street Lighting Consortium activities. The webcast also presented perspectives...

9

Information Resources: Webcast: Evaluating LED Street Lighting Solutions  

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

Evaluating LED Street Lighting Solutions Evaluating LED Street Lighting Solutions In this July 20, 2010 webcast, Edward Smalley of Seattle City Light provided an update on DOE Municipal Solid-State Street Lighting Consortium activities. The webcast also presented perspectives from members who are involved with implementing LED street lighting evaluations, including Tod Rosinbum of the City of Portland, Oregon, John Walter of National Grid, and Amy Olay of the City of San Jose, California. View presentation slides (Visit the Adobe® Web site to Download Adobe Reader.) Introduction (PDF 984 KB) Edward Smalley, DOE Municipal Solid-State Street Lighting Consortium, Moderator Evaluating LED Street Lighting Solutions (PDF 404 KB) Tod Rosinbum, City of Portland, Oregon LED Pilot Projects: A Utility Perspective (PDF 112 KB)

10

Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in  

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

Member Case Studies: LED Street Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) to someone by E-mail Share Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) on Facebook Tweet about Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) on Twitter Bookmark Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) on Google Bookmark Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) on Delicious Rank Solid-State Lighting: Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA) on Digg

11

Solid-State Lighting: Text-Alternative Version: Evaluating LED Street  

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

Evaluating LED Street Lighting Solutions to someone by E-mail Evaluating LED Street Lighting Solutions to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on Google Bookmark Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on Delicious Rank Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on Digg Find More places to share Solid-State Lighting: Text-Alternative Version: Evaluating LED Street Lighting Solutions on AddThis.com... Conferences & Meetings Presentations

12

High-performance LED street lighting using microlens arrays  

Science Journals Connector (OSTI)

An efficient LED lamp that illuminates the street with high quality is presented. The luminaire shows high optical efficiency, high optical utilization factor, low glare, and...

Lee, Xuan-Hao; Moreno, Ivan; Sun, Ching-Cherng

2013-01-01T23:59:59.000Z

13

Member Case Studies: LED Street Lighting Programs in Algona (IA), Asheville (NC), and Boston (MA)  

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

This May 8, 2013 webcast featured presentations from DOE Municipal Solid-State Street Lighting Consortium member cities about their experiences with LED street lighting. Presenters John Bilsten of...

14

Text-Alternative Version: MSSLC Member Case Studies- LED Street Lighting Programs Webinar  

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

Below is the text-alternative version of the "MSSLC Member Case Studies - LED Street Lighting Programs" webcast, held May 8, 2013.

15

Rectangular illumination using a secondary optics with cylindrical lens for LED street light  

Science Journals Connector (OSTI)

The illumination pattern of an LED street light is required to have a rectangular distribution at a divergence-angle ratio of 7:3 for economical illumination. Hence, research supplying...

Chen, Hsi-Chao; Lin, Jun-Yu; Chiu, Hsuan-Yi

2013-01-01T23:59:59.000Z

16

AUBELE - self-sufficient LED street light powered by fuel cells  

Science Journals Connector (OSTI)

Energy saving, in connection to renewable energy sources is an important topic. The project AUBELE represents a small step in this direction - a self-sufficient LED street lighting,...

Just, Jens-Uwe; Fischer, Ulrich H P

17

Sustainable infrastructure development: Assessing LED street lighting as a tool for sustainable development in Sao Jose dos Campos, Brazil.  

E-Print Network (OSTI)

??This research project investigates LED street lights as a tool for sustainable development in São José dos Campos, Brazil. The project explores the energy and… (more)

Kivimäki, S.E.E.

2013-01-01T23:59:59.000Z

18

Municipal Consortium LED Street Lighting Workshop: April 19–20, Los Angeles, CA  

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

Workshop Location: The Sheraton Los Angeles Downtown Hotel, 711 Hope Street, Los Angeles, CA 90017City Partner: City of Los Angeles Bureau of Street LightingCost: $175

19

Adaptive Street Lighting Controls  

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

This two-part DOE Municipal Solid-State Street Lighting Consortium webinar focused on LED street lighting equipped with adaptive control components. In Part I, presenters Amy Olay of the City of...

20

Municipal Consortium LED Street Lighting Workshop Presentations and Materials—Boston, MA  

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

This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Boston August 2–3, 2012.

Note: This page contains sample records for the topic "led street light" 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

Municipal Consortium LED Street Lighting Workshop Presentations and Materials—Los Angeles, CA  

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

This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Los Angeles April 19–20, 2012.

22

Municipal Consortium LED Street Lighting Workshop Presentations and Materials—Dallas, TX  

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

This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium Workshop held in Dallas March 15–16, 2012.

23

46th Street Pilot Street Lighting Project  

E-Print Network (OSTI)

46th Street Pilot Street Lighting Project A Joint Venture: Hennepin County & City of Minneapolis Street to 48th Street) as standard high-pressure sodium (HPS) lighting comparison corridor #12;The over time #12;Initial Lighting Comparison #12;Lighting Project Location #12;Street Light Layout 30

Minnesota, University of

24

Solid-State Lighting: Adaptive Street Lighting Controls  

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

Adaptive Street Lighting Adaptive Street Lighting Controls to someone by E-mail Share Solid-State Lighting: Adaptive Street Lighting Controls on Facebook Tweet about Solid-State Lighting: Adaptive Street Lighting Controls on Twitter Bookmark Solid-State Lighting: Adaptive Street Lighting Controls on Google Bookmark Solid-State Lighting: Adaptive Street Lighting Controls on Delicious Rank Solid-State Lighting: Adaptive Street Lighting Controls on Digg Find More places to share Solid-State Lighting: Adaptive Street Lighting Controls on AddThis.com... Conferences & Meetings Presentations Publications Webcasts Videos Tools Adaptive Street Lighting Controls This two-part DOE Municipal Solid-State Street Lighting Consortium webinar focused on LED street lighting equipped with adaptive control components.

25

Street light holography  

Science Journals Connector (OSTI)

The production of a hologram is demonstrated using only a camera aluminum foil and a mercury vapor street light.

R. R. Turtle

1977-01-01T23:59:59.000Z

26

Energy Savings Potential for Street Lighting in India  

E-Print Network (OSTI)

2013. [30] R. Banham, “LED Street Lights Investment Cost andGeneral Review. 2012. “Street lights to be repaired by10-21/chandigarh/34626751_1_street-lights- repair-municipal-

Johnson, Alissa K.

2014-01-01T23:59:59.000Z

27

Smart street lighting management  

Science Journals Connector (OSTI)

In this work, we propose a new street lighting energy management system in order to reduce ... demand” meaning that energy, in this case light, is provided only when needed. In ... demand model, which in the case...

S. Pizzuti; M. Annunziato; F. Moretti

2013-08-01T23:59:59.000Z

28

Cree LED Lighting Solutions Formerly LED Lighting Fixtures LLF...  

Open Energy Info (EERE)

LED Lighting Solutions Formerly LED Lighting Fixtures LLF Jump to: navigation, search Name: Cree LED Lighting Solutions (Formerly LED Lighting Fixtures (LLF)) Place: Morrisville,...

29

Information Resources: Adaptive Street Lighting Controls  

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

Adaptive Street Lighting Controls Adaptive Street Lighting Controls This two-part DOE Municipal Solid-State Street Lighting Consortium webinar focused on LED street lighting equipped with adaptive control components. In Part I, presenters Amy Olay of the City of San Jose, CA, and Kelly Cunningham of the California Lighting Technology Center at UC Davis discussed their experiences as early adopters of these smart street lighting systems. In Part II, presenters Laura Stuchinsky of the City of San Jose, CA, and Michael Poplawski of Pacific Northwest National Laboratory explored the MSSLC's recently released Model Specification for Adaptive Control and Remote Monitoring of LED Roadway Luminaires. Part I: Experiences and Benefits June 11, 2013 View the presentation slides Part II: Reviewing the MSSLC's Model Specification

30

LED Lighting Facts  

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

DOE's LED Lighting Facts® program showcases LED products for general illumination from manufacturers who commit to testing products and reporting performance results according to industry standards. For lighting buyers, designers, and energy efficiency programs, the program provides information essential to evaluating SSL products.

31

Tokyo Street Lights  

E-Print Network (OSTI)

that you have only 17, no 16, no 15 seconds left to get to the other side before the light changes and the impatient American drivers put the pedal to the metal and it's road kill time. Talk about stress! In Tokyo, crossing the street is a leisurely...

Hacker, Randi; Tsutsui, William

2008-03-12T23:59:59.000Z

32

About the DOE Municipal Solid-State Street Lighting Consortium  

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

Numerous cities and organizations around the nation are announcing plans to conduct large scale retrofits/comparisons of LED street and area lighting products with their conventional street lights.

33

Optical design of a Butterfly lens for a street light based on a double-cluster LED  

Science Journals Connector (OSTI)

We construct a precise optical model of the cluster LED and propose a design of a peanut form lens to achieve an optical utilization factor of 45% and uniformity of 1/2.7. Then we propose a new design of so-called Butterfly lens with unequal tilt design aimed to serve a double-cluster LED but with a tightened size. The optical utilization factor of the Butterfly lens is about 43.8%, the uniformity is around 1/2.7, and an averaged illuminance of 14 lx, which could meet almost all types requested by IESNA. The design of the Butterfly lens is proven workable for a double-cluster LED.

Yi-Chien Lo; Kuan-Teng Huang; Xuan-Hao Lee; Ching-Cherng Sun

2012-01-01T23:59:59.000Z

34

Brighter Lights, Safer Streets | Department of Energy  

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

Brighter Lights, Safer Streets Brighter Lights, Safer Streets Brighter Lights, Safer Streets May 15, 2012 - 5:56pm Addthis Workers install the final LED streetlight for DC's EECBG-funded energy efficient lighting upgrade. | Energy Department photo, credit Chris Galm. Workers install the final LED streetlight for DC's EECBG-funded energy efficient lighting upgrade. | Energy Department photo, credit Chris Galm. Chris Galm Marketing & Communications Specialist, Office of Energy Efficiency & Renewable Energy What does this project do? DC's streetlight upgrades will save approximately $59,000 in energy costs every year -- in addition to the reduced maintenance and replacement costs. The new lights will also cut greenhouse gas emissions by 719 tons. Thanks to support from an Energy Department Recovery Act grant, Washington,

35

Solid-State Lighting: LED Lighting Facts  

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

Market-Based Programs Printable Version Share this resource Send a link to Solid-State Lighting: LED Lighting Facts to someone by E-mail Share Solid-State Lighting: LED Lighting Facts on Facebook Tweet about Solid-State Lighting: LED Lighting Facts on Twitter Bookmark Solid-State Lighting: LED Lighting Facts on Google Bookmark Solid-State Lighting: LED Lighting Facts on Delicious Rank Solid-State Lighting: LED Lighting Facts on Digg Find More places to share Solid-State Lighting: LED Lighting Facts on AddThis.com... LED Lighting Facts CALiPER Program Standards Development Technical Information Network Gateway Demonstrations Municipal Consortium Design Competitions LED Lighting Facts LED lighting facts - A Program of the U.S. DOE DOE's LED Lighting Facts® program showcases LED products for general

36

LED Lighting | Department of Energy  

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

LED Lighting LED Lighting LED Lighting July 29, 2012 - 4:43pm Addthis LED Lighting What are the key facts? Quality LED products can last 25 times longer than an incandescent bulb and use 75% less energy. LEDs are directional, focusing light in ways that are useful in homes and commercial settings. The light-emitting diode (LED) is one of today's most energy-efficient and rapidly-developing lighting technologies. Quality LED light bulbs last longer, are more durable, and offer comparable or better light quality than other types of lighting. Check out the top 8 things about LEDs to learn more. Energy Savings LED is a highly energy efficient lighting technology, and has the potential to fundamentally change the future of lighting in the United States. Residential LEDs -- especially ENERGY STAR rated products -- use at least

37

DOE Street Lighting Consortium Releases Results of Public Street...  

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

Solid-State Street Lighting Consortium (MSSLC) has released the results of a voluntary web-based inventory survey of public street and area lighting across the U.S., conducted...

38

Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium  

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

Market-Based Programs Printable Version Share this resource Send a link to Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium to someone by E-mail Share Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on Facebook Tweet about Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on Twitter Bookmark Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on Google Bookmark Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on Delicious Rank Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on Digg Find More places to share Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium on AddThis.com... LED Lighting Facts

39

From Enthusiasm to Economy: Precision Optical Design as a Key to Making LED Luminaires Cost-Efficient in Street Lighting and Architectural Lighting  

Science Journals Connector (OSTI)

Technical luminaries have to compete on an economic basis. Optics design plays a key role for the development of efficient products, providing unique light distributions and minimizing...

Timinger, Andreas

40

Smart Street Lights | GE Global Research  

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

LightGrid Provides Real-Time Feedback From Street Lights LightGrid Provides Real-Time Feedback From Street Lights You use a GPS to provide real-time data from your car. Now,...

Note: This page contains sample records for the topic "led street light" 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

FirstEnergy (Potomac Edison) - Municipal and Street Lighting Program  

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

FirstEnergy (Potomac Edison) - Municipal and Street Lighting FirstEnergy (Potomac Edison) - Municipal and Street Lighting Program (Maryland) FirstEnergy (Potomac Edison) - Municipal and Street Lighting Program (Maryland) < Back Eligibility Commercial Industrial Institutional Local Government Nonprofit Schools State Government Savings Category Appliances & Electronics Commercial Lighting Lighting Program Info State Maryland Program Type Utility Rebate Program Rebate Amount '''Street Lighting'''br/> High Pressure Sodium Fixtures: $10 - $50/unit LED/Induction Fixtures: $50 '''Traffic/Pedestrian Signals''' Lamp/Signal/Arrows: $35/unit Provider FirstEnergy (Potomac Edison) FirstEnergy offers several incentives for non-residential and municipal customers to upgrade traffic signals, pedestrian signals, street lights to more efficient fixtures. The Municipal Lighting Incentive Program offers

42

New and Underutilized Technology: Exterior LED/Solid State Lighting |  

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

Exterior LED/Solid State Lighting Exterior LED/Solid State Lighting New and Underutilized Technology: Exterior LED/Solid State Lighting October 4, 2013 - 4:55pm Addthis The following information outlines key deployment considerations for exterior LED/solid state lighting within the Federal sector. Benefits LED lighting economics can work in high electric cost areas with high hours of use. Pricing continually decreases for LED lighting. This technology provides quality, white, even lighting with good color rendition. Greater cost savings can be achieved when combined with bi-level motion sensors to reduce light levels in parking areas, garages, and walkways. Application Exterior LED/solid state lighting is applicable in areas where security and visual performance are critical, including street lighting, parking lots,

43

Lighting the Night: Technology, Urban Life and the Evolution of Street Lighting [Light in Place  

E-Print Network (OSTI)

May 1912), 783. 8. "New Street Lights Increase Trade 3 5 Perlight, including street light, became part of America'sBeautiful-inspired street­ lights graced wealthy residen­

Holden, Alfred

1992-01-01T23:59:59.000Z

44

Metacapacitors for LED Lighting: Metacapacitors  

SciTech Connect

ADEPT Project: The CUNY Energy Institute is developing less expensive, more efficient, smaller, and longer-lasting power converters for energy-efficient LED lights. LEDs produce light more efficiently than incandescent lights and last significantly longer than compact fluorescent bulbs, but they require more sophisticated power converter technology, which increases their cost. LEDs need more sophisticated converters because they require a different type of power (low voltage direct current, or DC) than what's generally supplied by power outlets. The CUNY Energy Institute is developing sophisticated power converters for LEDs that contain capacitors made from new, nanoscale materials. Capacitors are electrical components that are used to store energy. CUNY's unique capacitors are configured with advanced power circuits to more efficiently control and convert power to the LED lighting source. They also eliminate the need for large magnetic components, instead relying on networks of capacitors that can be easily printed on plastic substrate. CUNY's prototype LED power converter already meets DOE's 2020 projections for the energy efficiency of LED power converters.

None

2010-09-02T23:59:59.000Z

45

Solid-State Lighting: Using LEDs  

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

Using LEDs to someone by E-mail Using LEDs to someone by E-mail Share Solid-State Lighting: Using LEDs on Facebook Tweet about Solid-State Lighting: Using LEDs on Twitter Bookmark Solid-State Lighting: Using LEDs on Google Bookmark Solid-State Lighting: Using LEDs on Delicious Rank Solid-State Lighting: Using LEDs on Digg Find More places to share Solid-State Lighting: Using LEDs on AddThis.com... Why SSL LED Basics OLED Basics Using LEDs R&D Challenges Market Challenges Using LEDs Resources Using LEDs to Their Best Advantage PDF Establishing LED Equivalency PDF LED Directional Lamps LED MR16 Lamps Recessed LED Downlights PDF General Service LED Lamps What to Ask - A Checklist for Buyers of LED Lighting Products More Resources With their unique design and performance characteristics-such as directional light emission, compact profile, superior optical control,

46

DOE Science Showcase - Light-emitting Diode (LED) Lighting Research | OSTI,  

Office of Scientific and Technical Information (OSTI)

Science Showcase - Light-emitting Diode (LED) Lighting Research Science Showcase - Light-emitting Diode (LED) Lighting Research Light-emitting diode (LED) lighting is a type of solid-state lighting that uses a semiconductor to convert electricity to light. LED lighting products are beginning to appear in a wide variety of home, business, and industrial products such as holiday lighting, replacement bulbs for incandescent lamps, street lighting, outdoor area lighting and indoor ambient lighting. Over the past decade, LED technology research and development supported by the U.S. Department of Energy (DOE) has yielded impressive improvements in the cost, color performance, light output, efficacy, reliability, lifetime, and manufacturability of LED products and this upward trend is expected to continue. Read about the latest DOE research, the technology behind LEDs,

47

Sandia National Laboratories: efficient LED lighting  

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

efficient LED lighting ECIS-Veeco: Research Driving Down the Costs of Efficient LED Lighting On February 14, 2013, in Energy, Energy Efficiency, Materials Science, Partnership,...

48

DOE Street Lighting Consortium Releases Results of Public Street and Area Lighting Inventory Survey  

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

DOE's Municipal Solid-State Street Lighting Consortium (MSSLC) has released the results of a voluntary web-based inventory survey of public street and area lighting across the U.S., conducted...

49

Information Resources: Webcast: Municipal Solid-State Street Lighting  

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

Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool This April 3, 2012 webcast presented information about the Retrofit Financial Analysis Tool developed by DOE"s Municipal Solid-State Street Lighting Consortium. Doug Elliott of Pacific Northwest National Laboratory provided a guided walk-through of what the tool can do and how to use it to evaluate costs and benefits associated with converting to LED street and roadway lighting. The webcast showed how city and other government agencies, utilities, finance and budget offices, and energy efficiency organizations can use the tool to compute annualized energy-cost savings, maintenance savings, greenhouse gas reductions, net present value, and simple payback, which can be helpful when putting together construction and conservation grant applications, as well as for preparing budgets and comparing incumbent costs to new costs.

50

DOE Municipal Solid-State Street Lighting Consortium  

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

The DOE Municipal Solid-State Street Lighting Consortium shares technical information and experiences related to LED street and area lighting demonstrations and serves as an objective resource for evaluating new products on the market intended for those applications. Cities, power providers, and others who invest in street and area lighting are invited to join the Consortium and share their experiences. The goal is to build a repository of valuable field experience and data that will significantly accelerate the learning curve for buying and implementing high-quality, energy-efficient LED lighting. Consortium members are part of an international knowledge base and peer group, receive updates on Consortium tools and resources, receive the Consortium E-Newsletter, and help steer the work of the Consortium by participating on a committee. Learn more about the Consortium.

51

Considerations When Comparing LED and Conventional Lighting  

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

When comparing LED lighting performance to conventional lighting, buyers will want to consider energy efficiency, operating life and lumen depreciation, light output/distribution, color quality,...

52

LED Lighting Basics | Department of Energy  

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

LED Lighting Basics LED Lighting Basics LED Lighting Basics August 16, 2013 - 10:07am Addthis Light-emitting diodes (LEDs) are light sources that differ from more traditional sources of light in that they are semiconductor devices that produce light when an electrical current is applied. Applying electrical current causes electrons to flow from the positive side of a diode to the negative side. Then, at the positive/negative junction of the diode, the electrons slow down to orbit at a lower energy level. The electrons emit the excess energy as photons of light. LEDs are often used as small indicator lights on various electronic devices. Because of their long life, durability, and efficiency, LEDs are becoming more common in residential, commercial, and outdoor area lighting

53

LED Lighting Value and Opportunities CONFIDENTIAL  

E-Print Network (OSTI)

LED Lighting ­ Value and Opportunities Paul Fini CREE SBTC CONFIDENTIAL #12;2 Copyright © 2013, Cree Inc. · By now, superior LED efficiency in any application, 10+ year reliability, and high light/yr #12;Copyright © 2013, Cree Inc. 4 LEDs in Various Applications · SSL: requirements vary widely

California at Davis, University of

54

GSM based cost effective street lighting application  

Science Journals Connector (OSTI)

Generating power play's a vital role in today's world. The project discuss about the controlling of the street light using real time clock application, which enables both Dim and Bright. Depends on the day light timings the street lights can be controlled by ON/OFF condition with the help of Real Time Clock (RTC). If any over load occurs the load will be cut and the information is transferred through GSM to server. Any disconnect in power the information is sent to server through GSM. If any complaint raised the user needs enter the number in the keypad which will be fixed in the street lamp and the message will be sent to Server through GSM.

N. Nithya; M. Hemalatha

2012-01-01T23:59:59.000Z

55

Enhancing the Light Extraction of InGaN Light-Emitting Diodes by Patterning the Dicing Streets  

Science Journals Connector (OSTI)

Patterning the dicing streets technology was used to define the high extraction efficiency region of InGaN-GaN multiple-quantum-well light-emitting diodes (LEDs). The external quantum...

Lin, Hung Cheng; Tseng, Yen Chun; Chyi, Jen Inn; Lee, Chia Ming

56

EECBG Success Story: Brighter Lights, Safer Streets  

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

Thanks to support from an Energy Department Recovery Act grant, Washington, DC streets are becoming brighter. These energy efficiency upgrades are saving energy and saving taxpayer dollars in the long run – but most importantly this means better lighting and safer neighborhoods for the nation’s capital. Learn more.

57

Smart Lighting: LED Implementation and Ambient Communication Applications  

E-Print Network (OSTI)

Smart Lighting: LED Implementation and Ambient Communication Applications by Nicholas Adrian Galano............................................................................................................................................1 LED Implementation..........................................................................................................................2 LED Energy Usage

Agogino, Alice M.

58

Zero net power LED lighting system design  

Science Journals Connector (OSTI)

Although the natural circuitry for LED is DC, LED lighting system design has been restricted to match the supply requirements of AC power from the grid. The DC converter circuit on each LED light fitting is not only energy inefficient, it is also the most unreliable element in the lighting system. In a pilot research project to investigate the feasibility of DC lighting systems, an innovative approach has been taken to re-design the lighting circuit in DC mode using existing AC wiring. The intelligent control system manages power supply between a bank of batteries, solar power or grid power back up. The batteries are charged when solar power is available. Further improvement of the circuit control using pulse width modulation operation modes has been demonstrated. Experiments showed that the new LED lighting system was able to deliver 65% total energy reduction.

John P.T. Mo; Ganesh Sen

2013-01-01T23:59:59.000Z

59

Street Light View: Enriching Navigable Panoramic Street View Maps with Informative Illumination Thumbnails  

E-Print Network (OSTI)

1 Street Light View: Enriching Navigable Panoramic Street View Maps with Informative Illumination, Stony Brook University ABSTRACT Google Street View is a technology featured in Google Maps and Google Earth that provides panoramic and immersive views of street scenes in many cities around the world

Mueller, Klaus

60

DOE Lighting Program Update: LED Validation Activities | Department...  

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

DOE Lighting Program Update: LED Validation Activities DOE Lighting Program Update: LED Validation Activities Presentation covers the DOE Lighting Program update and is given at...

Note: This page contains sample records for the topic "led street light" 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

#AskEnergySaver: LED Lights | Department of Energy  

Energy Savers (EERE)

LED Lights AskEnergySaver: LED Lights April 24, 2014 - 6:00pm Addthis LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use...

62

The Recovery Act is "Lighting Up" the streets of Philadelphia  

ScienceCinema (OSTI)

The Philadelphia Streets Department is converting 58,000 yellow and green traffic signals and will replace approximately 27,000 red LED lights that have come to the end of their useful life. The project will use approximately $3 million in EECBG funds, matched with $3 million in PECO funding, and will save the city approximately $1 million in electric costs each year. For more information on Recovery Act projects funded by the Department of Energy in Pennsylvania: http://www.energy.gov/recovery/pa.htm

Nutter, Michael; Gajewski, Katherine; Russell, Toby; Williams, Doug; Best, DeLain;

2013-05-29T23:59:59.000Z

63

The Recovery Act is "Lighting Up" the streets of Philadelphia  

SciTech Connect

The Philadelphia Streets Department is converting 58,000 yellow and green traffic signals and will replace approximately 27,000 red LED lights that have come to the end of their useful life. The project will use approximately $3 million in EECBG funds, matched with $3 million in PECO funding, and will save the city approximately $1 million in electric costs each year. For more information on Recovery Act projects funded by the Department of Energy in Pennsylvania: http://www.energy.gov/recovery/pa.htm

Nutter, Michael; Gajewski, Katherine; Russell, Toby; Williams, Doug; Best, DeLain

2010-01-01T23:59:59.000Z

64

DOE Lighting Program Update: LED Validation Activities  

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

DOE Lighting Program Update DOE Lighting Program Update LED Validation Activities Kelly Gordon Pacific Northwest National Laboratory Federal Utility Partnership Working Group April 15, 2010 Providence, RI www.ssl.energy.gov 2 | Solid-State Lighting Program Legislative Mandate The DOE is directed by U.S. government policy (EPACT 2005, Section 912) to: "...support research, development, demonstration, and commercial application activities related to advanced solid-state lighting technologies based on white light emitting diodes." DOE Lighting Program www.ssl.energy.gov 3 | Solid-State Lighting Program SSL Energy Saving Potential By 2030: * Potential to cut U.S. lighting electricity use by 25% * Cumulative energy savings: $120 billion * Annual energy savings equivalent to:

65

ECE 466: LED Lighting Systems -Incandescent lightings rise and  

E-Print Network (OSTI)

versus cost - Power Electronic Drives for CFL and LED light sources to achieve dimmable operation - Basic electric AC and DC circuits at Sophomore level or equivalents Absolutes Lighting System Requirements index as a metric of a light source - Power Electronic Energy sources driving light sources in a compact

Schumacher, Russ

66

Sustainable LED Fluorescent Light Replacement Technology  

SciTech Connect

Ilumisys and the National Center for Manufacturing Sciences (NCMS) partnered on a three-year project awarded by the United States (U.S.) Department of Energy (DOE), to quantify the impacts of LED lamps, incandescent lamps and fluorescent benchmark lamps over a product lifecycle – i.e. to develop a sustainable design and manufacturing strategy that addresses product manufacturing, use, recycling and disposal scenarios for LED-based lighting. Based on the knowledge gained from extensive product tear-down studies of fluorescent and screw-in lighting products, lifecycle assessment tools, and accelerated lifecycle testing protocols, an interactive Sustainable LED Design Guide has been developed to aid architectural and lighting designers and engineers in making design decisions that consider three important environmental impacts (greenhouse gas emissions, energy use and mercury emission) across all phases of the life of an LED lighting product. Critical information developed for the lifecycle analysis and product feature comparisons is the useful life of the lighting product as well as its performance. The Design Guide is available at www.ncms.org, and was developed based on operational and durability testing of a variety of lighting products including power consumption, light output, and useful life of a lamp in order to allow a more realistic comparison of lamp designs. This report describes the main project tasks, results and innovative features of the lifecycle assessment (LCA)-based design tools, and the key considerations driving the sustainable design of LED lighting systems. The Design Guide incorporates the following three novel features for efficiently evaluating LED lighting features in value-chains: • Bill-of-Materials (BOM) Builder – Designers may import process data for each component and supply functional data for the product, including power, consumption, lumen output and expected useful life. • Environmental Impact Review – Designs are comparable across lifecycle phases, subsystems, and environmental impact category, and can be normalized to a userdefined functional unit. • Drill-down Review – These provide an indepth look at individual lamp designs with the ability to review across subsystem or lifecycle phase.

None

2011-06-30T23:59:59.000Z

67

Solid-State Lighting: Municipal Solid-State Street Lighting Consortium  

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

Municipal Solid-State Street Municipal Solid-State Street Lighting Consortium Kickoff Webcast to someone by E-mail Share Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on Facebook Tweet about Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on Twitter Bookmark Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on Google Bookmark Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on Delicious Rank Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on Digg Find More places to share Solid-State Lighting: Municipal Solid-State Street Lighting Consortium Kickoff Webcast on AddThis.com... Conferences & Meetings

68

SciTech Connect: Demonstration Assessment of LED Roadway Lighting...  

Office of Scientific and Technical Information (OSTI)

Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA Citation Details In-Document Search Title: Demonstration Assessment of LED Roadway Lighting: Philadelphia, PA...

69

The Recovery Act is "Lighting Up" the streets of Philadelphia | Department  

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

The Recovery Act is "Lighting Up" the streets of Philadelphia The Recovery Act is "Lighting Up" the streets of Philadelphia The Recovery Act is "Lighting Up" the streets of Philadelphia Addthis Description The Philadelphia Streets Department is converting 58,000 yellow and green traffic signals and will replace approximately 27,000 red LED lights that have come to the end of their useful life. The project will use approximately $3 million in EECBG funds, matched with $3 million in PECO funding, and will save the city approximately $1 million in electric costs each year. Speakers Micheal Nutter, Toby Russel, Katherine Gajewski, DeLain Best, Duration 2:23 Topic Commercial Lighting Energy Sector Jobs Grants Credit Energy Department Video MAYOR MICHAEL NUTTER (D-PA): We're here to announce a partnership among

70

Solid-State Lighting: Using the Street and Parking Facility Lighting  

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

Using the Street and Parking Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool to someone by E-mail Share Solid-State Lighting: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Facebook Tweet about Solid-State Lighting: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Twitter Bookmark Solid-State Lighting: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Google Bookmark Solid-State Lighting: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Delicious Rank Solid-State Lighting: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Digg Find More places to share Solid-State Lighting: Using the Street and

71

New and Underutilized Technology: Airfield LED Lighting | Department of  

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

Technology: Airfield LED Lighting Technology: Airfield LED Lighting New and Underutilized Technology: Airfield LED Lighting October 7, 2013 - 8:57am Addthis The following information outlines key deployment considerations for airfield LED lighting within the Federal sector. Benefits Airfield LED lighting is a good application for colored LED lights since the LED is monochromatic. Reduced maintenance costs dramatically improve economics over existing incandescent. Application Airfield LED lighting is applicable at airports as wells military and domestic air stations and bases. Key Factors for Deployment Federal agencies must determine Federal Aviation Administration (FAA) approval requirements before deployment. Ranking Criteria Federal energy savings, cost-effectiveness, and probability of success are

72

Recovery Act is "Lighting Up" the Streets of Philadelphia | Department of  

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

is "Lighting Up" the Streets of Philadelphia is "Lighting Up" the Streets of Philadelphia Recovery Act is "Lighting Up" the Streets of Philadelphia September 27, 2010 - 5:27pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs The Philadelphia Streets Department is converting 58,000 yellow and green traffic signals and will replace approximately 27,000 red LED lights that have come to the end of their useful life. The project will use approximately $3 million in Energy Efficiency Conservation Block Grant funds, matched with $3 million in PECO funding, and will save the city approximately $1 million in electric costs each year. The program is part of the larger Greenworks Philadelphia project which commits the city to pursue 15 targets by the year 2015, including:

73

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made...

74

Getting Ready for LEDs: LED Lighting Video Series Explains the Basics |  

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

for LEDs: LED Lighting Video Series Explains the for LEDs: LED Lighting Video Series Explains the Basics Getting Ready for LEDs: LED Lighting Video Series Explains the Basics November 26, 2012 - 3:09pm Addthis Part 1 of the ElectricTV.net video series. Part 2 of the ElectricTV.net video series. Roland Risser Roland Risser Program Director, Building Technologies Office How can I participate? Learn more about the advantages and accessiblity of LED lighting from this series of videos. If you haven't been down the lighting aisle of your favorite home improvement store lately, you may be surprised at how many LED lighting products have arrived. Solid-state lighting (LEDs are one type) will soon have a strong impact on how buildings and homes are lit, in part because of its potential to reduce U.S. lighting energy usage by nearly one half.

75

Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on National Mall  

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

to Flip Switch on Energy-Efficient LED Lights on to Flip Switch on Energy-Efficient LED Lights on National Mall Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on National Mall January 30, 2012 - 11:02am Addthis WASHINGTON, D.C.-Today, Secretary of the Interior Ken Salazar and Secretary of Energy Steven Chu will participate in a lighting ceremony featuring the newly-installed LED lights on the National Mall. Illuminating the Mall from 3rd to 15th Streets, the LED technology is expected to reduce lighting energy by up to 65 percent and provide a well-lit atmosphere to welcome the National Mall's 25 million annual visitors. "Achieving an economy built on American energy will require an all-of-the-above approach, one that includes safely and responsibly developing our domestic energy resources - and making the most of what we

76

Municipal Solid-State Street Lighting Consortium Kickoff Webcast  

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

This May 6, 2010 webcast served as the first official meeting of the new DOE Municipal Solid-State Street Lighting Consortium. Ed Smalley of Seattle City Light and Bruce Kinzey of Pacific Northwest...

77

Energy Savings Potential for Street Lighting in India  

E-Print Network (OSTI)

savings, as less light (and less energy) can provide theconfigurations and light levels, LEDs did save energy, up toScenario Energy Use Savings (GWh) Compact fluorescent Light

Johnson, Alissa K.

2014-01-01T23:59:59.000Z

78

How Energy Efficiency is "Lighting Up" the Streets of Philadelphia |  

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

How Energy Efficiency is "Lighting Up" the Streets of Philadelphia How Energy Efficiency is "Lighting Up" the Streets of Philadelphia How Energy Efficiency is "Lighting Up" the Streets of Philadelphia April 6, 2011 - 11:01am Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs What does this project do? Philadelphia Streets Department converting 58,000 yellow and green traffic signals to LED's. President Obama has made building a secure, prosperous energy future a top priority. Last week, he outlined a plan to strengthen energy security in a speech at Georgetown University. Then on Friday, he traveled to a UPS shipping facility in Landover, Maryland to announce a major milestone for the "National Clean Fleet Partnership": Five of the largest domestic shipping companies have made commitments to reduce gasoline use in their

79

How Energy Efficiency is "Lighting Up" the Streets of Philadelphia |  

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

Energy Efficiency is "Lighting Up" the Streets of Philadelphia Energy Efficiency is "Lighting Up" the Streets of Philadelphia How Energy Efficiency is "Lighting Up" the Streets of Philadelphia April 6, 2011 - 11:01am Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs What does this project do? Philadelphia Streets Department converting 58,000 yellow and green traffic signals to LED's. President Obama has made building a secure, prosperous energy future a top priority. Last week, he outlined a plan to strengthen energy security in a speech at Georgetown University. Then on Friday, he traveled to a UPS shipping facility in Landover, Maryland to announce a major milestone for the "National Clean Fleet Partnership": Five of the largest domestic shipping companies have made commitments to reduce gasoline use in their

80

Development of a Web-based Emissions Reduction Calculator for Street Light and Traffic Light Retrofits  

E-Print Network (OSTI)

DEVELOPMENT OF A WEB-BASED, EMISSIONS REDUCTION CALCULATOR FOR STREET LIGHT AND TRAFFIC LIGHT RETROFITS Zi Liu, Ph.D. Research Engineer Jeff S. Haberl, Ph.D., P.E. Professor/Assc. Director Don Gilman, P..., street lights and traffic lights represent one of the largest categories of electricity used by a city. By retrofitting the street lights with energy efficient lamps such as high pressure sodium and metal halide and traffic lights with light...

Liu, Z.; Gilman, D.; Haberl, J. S.; Culp, C.

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Light Emitting Diodes (LEDs) for General Illumiation  

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

LIGHT LIGHT EMITTING DIODES (LEDS) FOR GENERAL ILLUMINATION AN OIDA TECHNOLOGY ROADMAP An OIDA Report March 2001 Co-Sponsored by DOE/BTS and OIDA Compiled by Eric D. Jones Sandia National Laboratories OIDA Member Use Only 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 © 2001 OIDA Optoelectronics Industry Development Association All data contained in this report is proprietary to OIDA and may not be distributed in either original or reproduced form to anyone outside the client's internal organization within five years of the report date without prior written permission of the Optoelectronics Industry Development Association. Published by: Optoelectronics Industry Development Association

82

Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting  

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

Webcast: Municipal Solid-State Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool to someone by E-mail Share Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool on Facebook Tweet about Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool on Twitter Bookmark Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool on Google Bookmark Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool on Delicious Rank Solid-State Lighting: Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool on Digg

83

New and Underutilized Technology: Interior LED/Solid State Lighting |  

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

Interior LED/Solid State Lighting Interior LED/Solid State Lighting New and Underutilized Technology: Interior LED/Solid State Lighting October 4, 2013 - 4:53pm Addthis The following information outlines key deployment considerations for interior LED/solid state lighting within the Federal sector. Benefits Interior LED retrofits are currently viable for down lights, track lighting, sconces, and both line and low voltage task lighting. Replacements for incandescent A-lamps have also been improving rapidly. Replacements for fluorescent tube lighting may be viable for high-cost maintenance areas. Application Interior LED/solid state lighting is a rapidly improving technology currently most applicable for down lights, track lights, task lighting, accenting, high ceiling, and high cost maintenance areas.

84

Article Published on LED Lumen Maintenance and Light Loss Factors...  

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

Article Published on LED Lumen Maintenance and Light Loss Factors Article Published on LED Lumen Maintenance and Light Loss Factors January 20, 2014 - 12:00am Addthis An article...

85

DOE Publishes Report on Color Stability of LED Lighting Products...  

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

Color Stability of LED Lighting Products DOE Publishes Report on Color Stability of LED Lighting Products October 24, 2013 - 12:00am Addthis The U.S. Department of Energy (DOE) has...

86

Sunlight and LED Hybrid Illumination in Indoor Lighting Design  

Science Journals Connector (OSTI)

We design a light integrating collector that can collect the sunlight and LED light to illuminate the indoor spaces uniformly, and then use in simulating the sunlight/LED hybrid...

Sun, Wen-Shing; Tsuei, Chih-Hsuan

87

Flexible LEDs bring light to fingertips Oct 19, 2010  

E-Print Network (OSTI)

Flexible LEDs bring light to fingertips Oct 19, 2010 Glowing gloves Light-emitting diodes ­ or LEDs and colleagues have exploited a new printing technique for forming arrays of incredibly small red LEDs on flexible substrates. Like conventional LED manufacture, device fabrication begins by depositing a stack

Rogers, John A.

88

Which LED Lighting Products Would You Consider Trying? | Department of  

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

Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? Which LED Lighting Products Would You Consider Trying? August 5, 2010 - 7:30am Addthis On Monday, Chris discussed his upcoming project to replace the lighting in his kitchen and family room. Chris is considering LED (light-emitting diode) lighting, especially for his kitchen, where they can be installed under the cabinets. LEDs can also be used for other applications, including task lighting, recessed downlights, and holiday lighting. Which LED lighting products would you consider trying? Or, if you're already using LEDs, what do you think of them? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments.

89

Information Resources: Using the Street and Parking Facility Lighting  

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

Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool This August 22, 2013 webinar provided a guided walk-through of the Street and Parking Facility Lighting Retrofit Financial Analysis Tool. Developed by a partnership of the DOE Municipal Solid-State Street Lighting Consortium, the Clinton Climate Initiative/C40, and the DOE Federal Energy Management Program, the Excel-based tool assists with the financial analysis of retrofitting street and parking facility lighting with more efficient alternatives. During the webinar, Doug Elliott of Pacific Northwest National Laboratory discussed how the tool can be used to evaluate costs and benefits associated with converting to more efficient street and parking facility lighting and how property owners, city and other government agencies, utilities, and energy efficiency organizations can use the tool to compute annualized energy and energy-cost savings, maintenance savings, greenhouse gas reductions, net present value, and simple payback associated with potential lighting upgrades.

90

Street and Parking Facility Lighting Retrofit Financial Analysis Tool Webinar  

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

DOE will present a live webinar titled "Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool" on Thursday, August 22, from 1:00 p.m. to 2:00 p.m. Eastern Daylight Time....

91

New and Underutilized Technology: High Bay LED Lighting | Department of  

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

High Bay LED Lighting High Bay LED Lighting New and Underutilized Technology: High Bay LED Lighting October 7, 2013 - 8:55am Addthis The following information outlines key deployment considerations for high bay LED lighting within the Federal sector. Benefits LED light sources offer several potential benefits compared to metal halide or fluorescent lighting, including reduced energy consumption due to the ability to provide a more precise light distribution; longer operating life and lower maintenance requirements; less heat introduced into the space; and greater controllability for dimming and on/off control. Relevant to the cold storage application, LED performance improves in colder temperatures. Application High bay LED lighting is applicable for facilities containing high bay

92

Solid-State Lighting: Text-Alternative Version: LED Essentials -  

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

Essentials - Technology, Applications, Advantages, Disadvantages to someone Essentials - Technology, Applications, Advantages, Disadvantages to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Google Bookmark Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Delicious Rank Solid-State Lighting: Text-Alternative Version: LED Essentials - Technology, Applications, Advantages, Disadvantages on Digg

93

Solid-State Lighting: DOE Hosts LED Industry Standards Workshop  

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

Information Information Resources Printable Version Share this resource Send a link to Solid-State Lighting: DOE Hosts LED Industry Standards Workshop to someone by E-mail Share Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Facebook Tweet about Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Twitter Bookmark Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Google Bookmark Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Delicious Rank Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on Digg Find More places to share Solid-State Lighting: DOE Hosts LED Industry Standards Workshop on AddThis.com... Conferences & Meetings Past Conferences Presentations Publications Webcasts Videos Tools

94

Frequently Asked Questions About the Municipal Solid-State Street Lighting Consortium  

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

This page addresses many of the questions about the Municipal Solid-State Street Lighting Consortium.

95

LED Lighting: Just the Facts, Please! | Department of Energy  

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

LED Lighting: Just the Facts, Please! LED Lighting: Just the Facts, Please! LED Lighting: Just the Facts, Please! January 4, 2010 - 7:30am Addthis John Lippert My June 16, 2009 blog gave tips on purchasing high-quality LED lights. Now there's another arsenal in the toolbox to help consumers find LED lights they can trust: the Lighting Facts(tm) label. As part of the SSL Quality Advocates voluntary pledge program developed jointly by the U.S. Department of Energy and the Next Generation Lighting Industry Alliance (NGLIA), the label is similar to the familiar nutrition label found on most food products. The label contains a lot of information that can help a consumer compare lighting products, including: light output in lumens; watts, the power the light consumes; lumens per watt, a measure of the product's efficacy (how

96

LED Lights for All Occasions | Department of Energy  

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

Lights for All Occasions Lights for All Occasions LED Lights for All Occasions November 15, 2012 - 1:15pm Addthis With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio With such a variety of lights available, LEDs are a perfect choice for holiday lighting. | Photo courtesy of ©iStockphoto.com/Birzio Elizabeth Spencer Communicator, National Renewable Energy Laboratory What does this mean for me? Energy-efficient LED lights can be used to save money while decorating this holiday season. The topic of lighting is no stranger to the Energy Saver blog. And energy-efficient lights--and particularly LEDs--are one of those wonderful things that come up a lot around the holidays, since there are so many wonderful ways to use them. But it's still too early to talk about

97

Have You Used LED Light Strings? | Department of Energy  

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

LED Light Strings? LED Light Strings? Have You Used LED Light Strings? December 3, 2009 - 7:30am Addthis This week, you read about LED holiday light strings, which can use 90% less energy than regular incandescent light strings. You may even be able to save on the initial costs with rebates from stores or your utility; check to find out what's being offered in your area. Have you used LED light strings? Tell us what you think of them. Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at consumer.webmaster@nrel.gov. Addthis Related Articles Save Money with LED Holiday Light Strings Tips to Save Energy During the Holidays Choosing Energy-Saving Lighting Products Saves You Money

98

LEDs  

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

Biomedical devices from ultraviolet Biomedical devices from ultraviolet LEDs February 24, 2012 LEDs produce light in the ultraviolet range A process for creating glass-based, inorganic light-emitting diodes (LEDs) that produce light in the ultraviolet range has been developed by a multinational team of scientists. The work, reported in the online Nature Communications, is a step toward biomedical devices with active components made from nanostructured systems. Solution-processed inorganic nanocrystals hold promise LEDs based on solution-processed inorganic nanocrystals have promise for use in environmental and biomedical diagnostics because they are cheap to produce, - 2 - robust, and chemically stable. But development has been hampered by the difficulty of achieving ultraviolet emission. In their paper, LANL's Sergio Brovelli and a research team lead by Alberto Paleari at the

99

Breakthrough Makes LED Lights More Versatile Author: Andrea Thompson  

E-Print Network (OSTI)

Breakthrough Makes LED Lights More Versatile Author: Andrea Thompson Source: http://www.livescience.com/technology/ LEDs have started to blink on all over the place in recent years, from car taillights to roadside these limitations by combining the best of two worlds of LEDs to make ultrathin, ultrasmall and flexible light

Rogers, John A.

100

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 29, 2010 - 10:00am Addthis LED traffic lights are assembled at Dialight’s factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. | Photo Courtesy of Dialight Lindsay Gsell LED traffic lights are assembled at Dialight's factory in Roxboro, N.C. The company has expanded production at the facility, adding more than 100 jobs over the past two years. Red. Yellow. Green. What LED traffic signals don't say: Made in USA.

Note: This page contains sample records for the topic "led street light" 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

LED Linear Lamps and Troffer Lighting  

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

The CALiPER program performed a series of investigations on linear LED lamps. Each report in the series covers the performance of up to 31 linear LED lamps, which were purchased in late 2012 or 2013. The first report focuses on bare lamp performance of LED T8 replacement lamps and subsequent reports examine performance in various troffers, as well as cost-effectiveness. There is also a concise guidance document that describes the findings of the Series 21 studies and provides practical advice to manufacturers, specifiers, and consumers (Report 21.4: Summary of Linear (T8) LED Lamp Testing , 5 pages, June 2014).

102

Integrated LED-based luminare for general lighting  

DOE Patents (OSTI)

Lighting apparatus and methods employing LED light sources are described. The LED light sources are integrated with other components in the form of a luminaire or other general purpose lighting structure. Some of the lighting structures are formed as Parabolic Aluminum Reflector (PAR) luminaires, allowing them to be inserted into conventional sockets. The lighting structures display beneficial operating characteristics, such as efficient operation, high thermal dissipation, high output, and good color mixing.

Dowling, Kevin J.; Lys, Ihor A.; Roberge, Brian; Williamson, Ryan C.; Roberts, Ron; Datta, Michael; Mollnow, Tomas; Morgan, Frederick M.

2013-03-05T23:59:59.000Z

103

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 1960Â’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:

104

LED Lighting on the National Mall | Department of Energy  

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

LED Lighting on the National Mall LED Lighting on the National Mall LED Lighting on the National Mall Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said Secretary Chu. "Investing in an American economy that is built to last includes taking advantage of all of America's energy resources while

105

Save Money with LED Holiday Light Strings | Department of Energy  

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

Money with LED Holiday Light Strings Money with LED Holiday Light Strings Save Money with LED Holiday Light Strings December 1, 2009 - 11:19am Addthis Allison Casey Senior Communicator, NREL It's hard to believe, but the holidays are in full swing and many of you are starting to decorate your homes. Those of you who started around Halloween are probably feeling pretty smart because you got your decorating done while the weather was nice. I see you there, snacking on your Thanksgiving leftovers, laughing at me shivering in the cold and struggling to undo the knot in my lights. Don't look so smug. Those of us who haven't started decorating yet may actually be the smart ones this year, because we still have a chance to buy LED light strings. LED (or light emitting diode) light strings can use 90% less energy than

106

Lighting Test Facilities  

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

Custom Projects Lighting Test Facilities SSL Guidelines Industrial Federal Agriculture LED Street and Area Lighting Field Test of Exterior LED Down Lights Abstract Outdoor...

107

Keeping Pace with LED Lighting Trends | Department of Energy  

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

Keeping Pace with LED Lighting Trends Keeping Pace with LED Lighting Trends Keeping Pace with LED Lighting Trends October 23, 2013 - 10:41am Addthis This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland This year's SSL Market Introduction Workshop will take place in Portland, Oregon. | Photo courtesy of Travel Portland Jim Brodrick Lighting Program Manager Rapid advances in solid-state lighting (SSL) technology are reducing the cost, improving the performance and quality, and bringing new lighting options--light emitting diodes (LEDs) to the market. But for lighting and energy efficiency industry professionals this seemingly good news can be "too much of a good thing." Imagine the challenge of making smart institutional purchasing decisions or designing

108

Energy - LEDs to light UT arena | ornl.gov  

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

to 85 percent more efficient than conventional arena metal halide lights. The light-emitting diode fixtures developed by Oak Ridge-based LED North America incorporate an Oak...

109

Urban street lights are changing animal ecology  

Science Journals Connector (OSTI)

We all know light pollution hampers our view of the stars. Not many appreciate what it's doing under our feet, says Tom Davies

Jon White

2012-01-01T23:59:59.000Z

110

Department of Mechanical Engineering Spring 2013 Lumax Lighting 2: LED Industrial High Bay Light Fixture  

E-Print Network (OSTI)

PENNSTATE Department of Mechanical Engineering Spring 2013 Lumax Lighting 2: LED Industrial High was to design a light fixture for an industrial setting using high power LED lights. The challenge with these LEDs is that they get so hot in a very little time period that the LED will fail and not work anymore

Demirel, Melik C.

111

Public Street Lights Increase House Infestation by the Chagas Disease Vector Triatoma dimidiata  

E-Print Network (OSTI)

Public Street Lights Increase House Infestation by the Chagas Disease Vector Triatoma dimidiata houses were significantly closer to public street light sources than non-infested houses (18.060.6 vs 22.660.4 m), and street lights rather than domestic lights were associated with house infestation

Boyer, Edmond

112

Article Published on LED Lumen Maintenance and Light Loss Factors  

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

An article has been published in LEUKOS: The Journal of the Illuminating Engineering Society of North America (IES) that may be of interest to the solid-state lighting community. Entitled "Lumen Maintenance and Light Loss Factors: Consequences of Current Design Practices for LEDs," the article was written by Michael Royer of Pacific Northwest National Laboratory and discusses complications related to the lamp lumen depreciation (LLD) light loss factor and LEDs.

113

Group decision making based autonomous control system for street lighting  

Science Journals Connector (OSTI)

Most traditional street lighting systems do not have the function of autonomous control. Inspired by social animals and insects, an autonomous control system for street lighting is presented in this paper. All the lamp nodes compose a wireless sensor network (WSN) based lamp group in which there are a lamp leader, a succeeding leader, and some lamp members. All the lamp members communicate with the lamp leader by forming a tree topology. The lamp member collects ambient illumination using a light sensor periodically. When finding the illumination is under the preset threshold, the lamp member will send a turning-on vote to the lamp leader. The lamp leader counts the number of votes received from the members. When the number of the votes is larger than the preset threshold, the lamp leader will send a turning-on command to all the lamp members. Just like the succession behavior in social animals, the succeeding leader in the proposed system can automatically take the place of the current lamp leader when it is disabled. A failure message can be sent to the remote street lighting maintenance center by a GPRS network. Leader switching and group decision making tests have been carried out for validating these proposed methods. The experimental results show that the proposed system can automatically response to ambient light changes. The method of group decision making improves the anti-interference capability and the intelligence level of the lighting control system.

Jun Zhang; Guifang Qiao; Guangming Song; Hongtao Sun; Jian Ge

2013-01-01T23:59:59.000Z

114

LED Traffic Lights Get Buy American Stamp | Department of Energy  

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

LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp LED Traffic Lights Get Buy American Stamp November 30, 2010 - 10:19am Addthis Red. Yellow. Green. What LED traffic signals don't say: Made in USA. That is changing. Dialight Corporation, an LED lighting manufacturer with U.S. corporate offices in Farmingdale, New Jersey, and a parent company based in the U.K., invested nearly $3 million into renovating their 75,000-square-foot production facility in Roxboro, North Carolina. With these improvements, Dialight's Roxboro plant is projected to scale up production by 400 percent. "Bringing manufacturing back to America is a win-win scenario," said Roy Burton, Dialight's Group Chief Executive. "We're helping the economy by creating new jobs, and at the same time we're finding it more

115

Solid-State Lighting: LED Site Lighting in the Commercial Building Sector:  

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

Site Lighting in the Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification to someone by E-mail Share Solid-State Lighting: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Facebook Tweet about Solid-State Lighting: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Twitter Bookmark Solid-State Lighting: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Google Bookmark Solid-State Lighting: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Delicious

116

Text-Alternative Version: Keynote Video from Street and Area Lighting Conference  

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

Following is a text version of Jim Brodrick's keynote video from the recent Street and Area Lighting Conference.

117

Public street lighting remote operation and supervision system  

Science Journals Connector (OSTI)

Abstract Public street lighting system consists of devices distributed in points of light and a supervision and control application. The system architecture is modular and expandable. In developing the work the C# language is adopted to develop the operation and monitoring via standard CyberOPC and XML file types are applied to the device description and definition of the network topology. This paper describes the validation proposed and the results obtained attests that this applied methodology is feasible and can be applied to other public lighting systems.

Cleber Costa da Fonseca; Rodrigo Palucci Pantoni; Dennis Brandão

2015-01-01T23:59:59.000Z

118

EECBG Success Story: Recovery Act is "Lighting Up" the Streets...  

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

58,000 yellow and green traffic signals and will replace approximately 27,000 red LED lights that have come to the end of their useful life. Learn more. Addthis Related...

119

Spectral optimization of the color temperature tunable white light-emitting diode (LED) cluster consisting of direct-emission blue and red LEDs and a diphosphor conversion LED  

Science Journals Connector (OSTI)

The correlated color temperature (CCT) tunable white-light LED cluster, which consists of direct-emission blue and red LEDs as well as phosphor-conversion (PC) LEDs packaged by...

Zhong, Ping; He, Guoxing; Zhang, Minhao

2012-01-01T23:59:59.000Z

120

Solid-State Lighting: Text-Alternative Version: Using the Street and  

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

Using Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Google Bookmark Solid-State Lighting: Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on Delicious Rank Solid-State Lighting: Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool on

Note: This page contains sample records for the topic "led street light" 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

LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy  

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

LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! December 2, 2010 - 4:34pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Ed. Note cross posted from the Energy Savers Blog. Written by Allison Casey This week brings a day that many people look forward to all year -- and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the basement or attic, to lovingly sort and display your decorations, to untangle your light strings and set up the stepladder, all in anticipation of one glorious moment: Dad's annual trip to the emergency room. I kid (and sincerely hope that's not your yearly ritual), but in addition

122

LED traffic lights: New technology signals major energy savings  

SciTech Connect

Using light-emitting diode technology to replace incandescent lamps in traffic signals promises energy savings upwards of 60 percent for each of the estimated quarter of a million controlled intersections in the United States. LED units use only 9 to 25 watts instead of the 67 to 150 watts used by each incandescent lamp. Though their first cost is relatively high, energy savings result in paybacks of 1 to 5 years. LED retrofit kits are available for red signal disks and arrows, and installations in several states have proven successful, although minor improvements are addressing concerns about varying light output and controller circuitry. Retrofitting green lamps is not yet feasible, because color standards of the Institute of Traffic Engineers cannot be met with existing LED technology. Yellow lamps have such low duty factors (they`re on only 3 percent of the time) that retrofitting with LED signals is not cost-effective. LEDs last much longer than incandescents, allowing municipalities to not only reduce their electricity bills, but to save on maintenance costs as well. As further incentive, some utilities are beginning to implement rebate programs for LED traffic signal retrofits. Full approval of LED units is still awaited from the Institute of Traffic Engineers (ITE), the standard-setting body for traffic safety devices. Local and state governments ultimately decide what specifications to require for traffic lights, and the growing body of successful field experience with LEDs appears to be raising their comfort level with the technology. The California Department of Transportation is developing an LED traffic light specification, and two California utilities, Southern California Edison and Pacific Gas and Electric, have provided rebates for some pilot installations.

Houghton, D.

1994-12-31T23:59:59.000Z

123

Sustainable feasibility of solar photovoltaic powered street lighting systems  

Science Journals Connector (OSTI)

Abstract In the last few years, due to soaring fuel prices and gas emissions, renewable energy technologies have been suggested as the power source for infrastructures. The interest in solar photovoltaic (PV) assisted street lighting systems stems from the fact that they are sustainable and environmentally friendly compared to conventional energy powered systems. The present paper investigates and compares the economic feasibility of two types of systems: islanded and grid-connected system, for the street lighting systems in Hunan Province, China. Based on two options of solar panel materials, a simulation model of the system is developed for economic, technical and environmental feasibility. The comprehensively sustainability feasibility of these systems is conducted taking into account the cost, energy generation, CO2 emissions and renewable fraction. Radar plot is employed to integrate all the sustainability indicators into a general indicator, which presents system’s sustainability as a real number in the interval [0, 2]. Results show that for street lighting systems of all the cities, single crystal panel has a larger number of annual electricity generation, less emissions and higher environmental performance, but is more expansive than polycrystalline. It is also found that when the feed-in tariff higher than 1.27 CNY/kW h, the cost of energy (COE) of the solar powered lighting systems is less than a pure grid powered system. This will incite the use of solar PV in infrastructures. Through comparing the scores of sustainability, it is found that the Loudi system has the highest feasibility while the Yongzhou system has the lowest in the province.

Gang Liu

2014-01-01T23:59:59.000Z

124

Self-organizing traffic lights at multiple-street intersections  

E-Print Network (OSTI)

Summary: Traffic light coordination is a complex problem. In this paper, we extend previous work on an abstract model of city traffic to allow for multiple street intersections. We test a self-organizing method in our model, showing that it is close to theoretical optima and superior to a traditional method of traffic light coordination. Abstract: The elementary cellular automaton following rule 184 can mimic particles flowing in one direction at a constant speed. This automaton can therefore model highway traffic. In a recent paper, we have incorporated intersections regulated by traffic lights to this model using exclusively elementary cellular automata. In such a paper, however, we only explored a rectangular grid. We now extend our model to more complex scenarios employing an hexagonal grid. This extension shows first that our model can readily incorporate multiple-way intersections and hence simulate complex scenarios. In addition, the current extension allows us to study and evaluate the behavior of two...

Gershenson, Carlos

2011-01-01T23:59:59.000Z

125

Model Specification for LED Roadway Luminaires  

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

The DOE Municipal Solid-State Street Lighting Consortium's Model Specification for LED Roadway Luminaires enables cities, utilities, and other state and local agencies to assemble effective bid...

126

Model Specification for LED Roadway Luminaires Webcast  

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

This November 15, 2011 webcast presented information about the Model Specification for LED Roadway Luminaires developed by DOE's Municipal Solid-State Street Lighting Consortium. During the webcast...

127

Demonstrating LED and Fiber Optic Lighting in Commissary Applications  

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

Demonstrating LED and Fiber Optic Demonstrating LED and Fiber Optic Lighting in Commissary Applications Joseph Konrade Energy Technology Program Specialist Federal Energy Management Program 2 GOAL OF THE PROJECT * Promote New Lighting Technology * Document Energy Savings * Duplicate the technology * Expand Alternative Financing Opportunities * Include Lighting Technology in Government Projects within Utility Service Territory 3 History * FEMP sponsored E4 audits * Audit designed to review Utility Cost, Operations and Maintenance, New Technology Application * 3 Defense Commissary Agency (DeCA) received services under the agreement with DOE * Fort George G Meade pays a high electricity rate Electricity cost $0.171/kWh (PWC sub-metered rate) * Commissary was previously unmetered - Meter installed during installation of lighting project. New meter showing higher

128

Veiliger uitharden met Elipar™ FreeLight 2 LED  

Science Journals Connector (OSTI)

De lichtintensiteit van de Elipar Free- Light 2 LED uithardingslamp is verhoogd van 1.000 mW/cm2 naar 1.200 mW/cm2. Dit verbetert polymerisatiediepte en biedt een extra veiligheidsvoordeel voor de klinische situa...

   

2005-06-01T23:59:59.000Z

129

Outdoor Lighting Resources  

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

DOE offers a variety of resources to guide municipalities, utilities, and others in their evaluation of LED street lighting products.

130

Solid-State Lighting: Text-Alternative Version: LED Site Lighting in the  

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

Site Lighting in the Commercial Building Sector: Opportunities, Challenges, Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification on Google Bookmark Solid-State Lighting: Text-Alternative Version: LED Site

131

Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff  

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

Below is the text-alternative version of the Municipal Solid-State Street Lighting Consortium Kickoff webcast, held May 6, 2010.

132

Effektivare ytterbelysning inom Karlstads Bostads AB; More efficient street lighting for Karlstads Bostads AB.  

E-Print Network (OSTI)

?? This report is an inventory of the street lighting in half of the residential estates owned by Karlstad Bostads AB, a public housing company.… (more)

Lenz, Mikaela

2008-01-01T23:59:59.000Z

133

Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast  

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

Below is the text-alternative version of the "Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool" webcast, held April 3, 2012.

134

Text-Alternative Version: Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool  

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

Below is the text-alternative version of the "Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool" webcast, held August 22, 2013.

135

LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy  

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

Holiday Lights: Festive, Safe, and Efficient! Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! November 23, 2010 - 6:30am Addthis Allison Casey Senior Communicator, NREL This week brings a day that many people look forward to all year-and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the basement or attic, to lovingly sort and display your decorations, to untangle your light strings and set up the stepladder, all in anticipation of one glorious moment: Dad's annual trip to the emergency room. I kid (and sincerely hope that's not your yearly ritual), but in addition to safety when hanging your lights this year, I hope you'll think about something else: efficiency.

136

Is the light emitting diode (LED) an ultimate lamp?  

Science Journals Connector (OSTI)

Simple diagrams are used to show the transformation of a thin “slab” of intrinsic semiconductor (direct gap k elec =k hole ) from an ideal “flat-band” photopumped recombination-radiation light source into an ultimate lamp a p–n junctionlight emitting diode(LED). A photoexcited intrinsic slab of semiconductor can be regarded as an ideal (“flat-band”) light source with however the photogenerated carriers and voltage available externally instead of as recombination radiation (light) if the slab is converted to half p type (one side) and half n type (the other side) i.e. to a p–n junction. If an equal a “bucking ” external voltage is applied resulting in an input current when the photoexcitation is removed the slab becomes again (remains) an ideal “flat-band” light source a p–n junctionLED. In practice the LED takes the form of a p–n heterostructure in order to improve electron–hole injection reduce the absorption of recombination radiation and to make possible—with proper geometries—improved photon escape.

N. Holonyak Jr.

2000-01-01T23:59:59.000Z

137

LED Record Efficacy and Brightness  

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

Designed for general lighting applications such as street, industrial, and parking garage lighting, the Cree XLamp® power LED sets new records for LED brightness and efficacy, up to 85 lm/W at 350 mA. The XLamp utilizes Cree's performance breakthrough EZBright™ LED chip; both products include technology that was developed in part with R&D funding support from DOE.

138

The Municipal Solid-State Street Lighting Consortium Public Outdoor Lighting Inventory: Phase I: Survey Results  

SciTech Connect

This document presents the results of a voluntary web-based inventory survey of public street and area lighting across the U.S. undertaken during the latter half of 2013.This survey attempts to access information about the national inventory in a “bottoms-up” manner, going directly to owners and operators. Adding to previous “top down” estimates, it is intended to improve understanding of the role of public outdoor lighting in national energy use.

Kinzey, Bruce R.; Smalley, Edward; Haefer, R.

2014-09-30T23:59:59.000Z

139

The effect of information and values on acceptability of reduced street lighting  

Science Journals Connector (OSTI)

Abstract This research examined whether provision of information on the environmental impact of street lighting affects the acceptability and perceived social safety of reduced street lighting levels. We argued that such information should particularly affect acceptability and safety judgements of individuals who value these environmental benefits, that is, those with strong biospheric values. Participants viewed virtual representations of a residential street where street lighting levels were varied. As expected, low lighting levels were seen as more acceptable, while high lighting levels were seen as less acceptable when information on the environmental impact of street lighting was provided to individuals that strongly endorsed biospheric values. Support for the expectation that these increases in acceptability of lower lighting levels would trigger a process of rationalisation leading individuals with strong biospheric values to downplay consequences opposing value-driven views was mixed. Stronger effects were found when participants could compare different lighting levels directly. The study suggests that value-congruent information on the environmental benefits of reduced street lighting can increase acceptability of reduced street lighting.

Christine Boomsma; Linda Steg

2014-01-01T23:59:59.000Z

140

LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification  

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

This March 26, 2009 webcast presented information about the Commercial Building Energy Alliances' (CBEA) efforts to explore the viability of LED site lighting in commercial parking lots. LED...

Note: This page contains sample records for the topic "led street light" 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

Amber LEDs for Solid-State Lighting: White light with unprecendented efficiencies  

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

Amber LEDs for Solid-State Lighting: Amber LEDs for Solid-State Lighting: White light with unprecedented efficiencies Commercialization Webinar December 10, 2013 2 Agenda for Today's Webinar * Welcome/Logistics * Technology Overview * Commercialization Opportunity * Q&A 3 Presenters Yoriko Morita, PhD MBA licensing manager Kirstin Alberi, PhD inventor 4 Technology Overview * Background/Context * Limitations NREL's Technology Addresses o Substrate material o Efficiency o Manufacturing * Performance Testing Results * Summary of Benefits/Advantages NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Amber LEDs for Solid-State Lighting: White light with unprecedented efficiencies

142

The City of Los Angeles LED Streetlight Program  

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

View the video about the Los Angeles LED streetlight program, featuring an interview with City of Los Angeles Bureau of Street Lighting Director, Ed Ebrahimian.

143

Minimal Viewing Distance Calculation in LED Display Panels  

Science Journals Connector (OSTI)

Light-emitting diode (LED) display panels have received more attention recently. These panels usually are placed in public places such as streets, ...

Nazeran Motlagh, A Ali; Hashemi, B Massoud Reza

2010-01-01T23:59:59.000Z

144

LED Components and the Related Solutions for Solid-State Lightings Applications  

Science Journals Connector (OSTI)

The high brightness (HB) and the high power (HP) LED components for solid-state lighting applications are introduced in the slides. The industry leading Lighting-Class LED components...

Shao, Jiaping

145

New Use of LED Light: Intense Concentration into a Small Focal Spot  

Science Journals Connector (OSTI)

For decades, optics for focusing laser and solar light has been developed. Here, we explain the radiometry and discuss the nonimaging optics for efficient concentration of LED light...

Moreno, Ivan; Rodriguez, Nayeli

146

A High-Speed LED Driver That Sweeps Out the Remaining Carriers for Visible Light Communications  

Science Journals Connector (OSTI)

The modulation speed of light-emitting diodes (LEDs) must be increased to improve the speed, increase the bandwidth, and miniaturize the hardware of visible light communication (VLC)...

Kishi, Toshiki; Tanaka, Hiroyuki; Umeda, Yohtaro; Takyu, Osamu

2013-01-01T23:59:59.000Z

147

Using the Street and Parking Facility Lighting Retrofit Financial Analysis Tool  

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

This August 22, 2013 webinar provided a guided walk-through of the Street and Parking Facility Lighting Retrofit Financial Analysis Tool. Developed by a partnership of the DOE Municipal Solid-State...

148

Webcast: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool  

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

This April 3, 2012 webcast presented information about the Retrofit Financial Analysis Tool developed by DOE"s Municipal Solid-State Street Lighting Consortium. Doug Elliott of Pacific Northwest...

149

Street Trees and Intersection Safety  

E-Print Network (OSTI)

streets and the design of street lights on a typical street.Roadway signs: 10 feet • Street lights: 10 feet for palmelectrical lines: 5 feet Street lights: 15 feet City of

Macdonald, Elizabeth; Harper, Alethea; Williams, Jeff; Hayter, Jason A.

2006-01-01T23:59:59.000Z

150

Street Trees and Intersection Safety  

E-Print Network (OSTI)

streets and the design of street lights on a typical street.Roadway signs: 10 feet • Street lights: 10 feet for palmlines: 5 feet Street lights: 15 feet Not specified Not

Macdonald, Elizabeth; Harper, Alethea; Williams, Jeff; Hayter, Jason A.

2006-01-01T23:59:59.000Z

151

Camera Based Interactive Wall Display With Hand Detection Using LED Lights  

E-Print Network (OSTI)

Camera Based Interactive Wall Display With Hand Detection Using LED Lights Sit Chu Wah, Sin Kwok our system. Also, three LED lights are required to put on the fingers to help the system to detect immediately and produces associated output. Output Hand detection using LED lights X-Y Coordination analysis

Wu, Dekai

152

Crystal coat warms up LED light 16:46 01 February 2008  

E-Print Network (OSTI)

Crystal coat warms up LED light 16:46 01 February 2008 NewScientist.com news service Mason Inman Topping LEDs with a coating of carefully tuned nanocrystals makes their light warmer and less clinical, a new study shows. The researchers argue this is a must for energy- efficient LED lights to make headway

Demir, Hilmi Volkan

153

Current-voltage model of LED light sources Szymon Bczkowski, Stig Munk-Nielsen  

E-Print Network (OSTI)

Current-voltage model of LED light sources Szymon Bczkowski, Stig Munk-Nielsen Department of Energy shifts caused by varying magnitude of LED driving current and nonlinear relationship between intensity radiation into visible light, are gradually being replaced by light-emitting diodes. The invention of LEDs

Munk-Nielsen, Stig

154

High-power LED Technology and Solid State Lighting  

Science Journals Connector (OSTI)

The rapid adoption of LEDs in general illumination is fueled by high-power phosphor-conversion and direct color blue and red LED technology. Over the last several years...

Goetz, Werner

155

Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office  

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

LEDs LEDs for Interior Office Applications to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on Google Bookmark Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on Delicious Rank Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on Digg Find More places to share Solid-State Lighting: Text-Alternative Version: LEDs for Interior Office Applications on AddThis.com... Conferences & Meetings Presentations Publications

156

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

157

Energy Savings Potential for Street Lighting in India  

E-Print Network (OSTI)

lighting quality, reduce energy use, costs, and greenhouseLighting Retrofit Projects: Improving Performance while Reducing Costs and Greenhouse

Johnson, Alissa K.

2014-01-01T23:59:59.000Z

158

LED Lighting Flicker and Potential Health Concerns: IEEE Standard PAR1789 Update  

E-Print Network (OSTI)

LED Lighting Flicker and Potential Health Concerns: IEEE Standard PAR1789 Update Arnold Wilkins Working Group, IEEE PAR1789 "Recommending practices for modulating current in High Brightness LEDsStar and other standards groups about the emerging concern of flicker in LED lighting. This paper introduces

Lehman, Brad

159

AC-LED based Visible Light Communication Systems Using Multiple Transmitter Design for Reducing Latency  

Science Journals Connector (OSTI)

This work demonstrates by employing multiple alternating-current light-emitting-diode (AC-LED) communication modules, the transmission gap in time-domain caused by the LED threshold...

Liu, Y; Yeh, C; Chow, C W

160

Calibration of Cangaroo II Telescope Using a Fast Blue LED Light Flasher  

E-Print Network (OSTI)

Calibration of Cangaroo II Telescope Using a Fast Blue LED Light Flasher John R. Patterson, David L;=460 nm) LED type Nichia (NSPB 510S), which has a temperature stable light output and a risetime of #24; 1.physics.adelaide.edu.au/astrophysics/cangaroo.html #12; FIGURE 1. The LED asher/telescope with the Ramsden eyepiece #12;tted and a previous LED holder

Enomoto, Ryoji

Note: This page contains sample records for the topic "led street light" 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

Slideshow: Flipping the Switch on LED Lighting for the National Mall |  

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

Slideshow: Flipping the Switch on LED Lighting for the National Slideshow: Flipping the Switch on LED Lighting for the National Mall Slideshow: Flipping the Switch on LED Lighting for the National Mall January 31, 2012 - 3:05pm Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said

162

Solid-State Lighting: Text-Alternative Version: Successful Selection of LED  

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

Text-Alternative Version: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast on Google Bookmark Solid-State Lighting: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast on Delicious Rank Solid-State Lighting: Text-Alternative Version: Successful Selection of LED Streetlight Luminaires Webcast on Digg Find More places to share Solid-State Lighting: Text-Alternative

163

Slideshow: Flipping the Switch on LED Lighting for the National Mall |  

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

Slideshow: Flipping the Switch on LED Lighting for the National Slideshow: Flipping the Switch on LED Lighting for the National Mall Slideshow: Flipping the Switch on LED Lighting for the National Mall January 31, 2012 - 3:05pm Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8 Energy Secretary Steven Chu discusses the 65% savings on electric bills and lowered maintenance costs the National Parks Service is experiencing by switching to energy efficient LED lights. "Using energy-efficient LED light bulbs is an important way Americans can save money by saving energy," said

164

Solid-State Lighting: Text-Alternative Version: Model Specification for LED  

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

Information Information Resources Printable Version Share this resource Send a link to Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Google Bookmark Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Delicious Rank Solid-State Lighting: Text-Alternative Version: Model Specification for LED Roadway Luminaires Webcast on Digg

165

LED Lighting Freeform Lens for achieving Octagon Spot  

Science Journals Connector (OSTI)

To decreasing the design error caused by the point source model, a method combining freeform and aspherical surface is presented. A LED spotlight lens for realizing octagon spot is...

Shaoyun, Yin; Sun, Xiuhui; Xia, Liangping; Du, Chunlei

166

Growth and pigment content of Gracilaria tikvahiae McLachlan under fluorescent and LED lighting  

Science Journals Connector (OSTI)

Abstract Light emitting diode (LED) technology has significant potential advantages over other light sources in algal aquaculture. This study investigated \\{LEDs\\} as light sources for the culture of Gracilaria tikvahiae. We cultured a wild-type and a green mutant strain of G. tikvahiae, comparing growth rate and tissue chlorophyll a, total carotenoids, and phycobiliprotein concentrations under high output cool white fluorescent, pure primary color LED, and mixed LED lighting. Under monochromatic light, the growth rates under high output cool white fluorescent lighting were significantly higher than rates under pure LED light (all three colors for wild strain and green and blue for green mutant). However, when pure color LED lighting was mixed (50%/50%), the red + green (wild-type strain and green mutant) and the green + blue LED combinations (wild-type only) showed growth rates similar to those under high output cool white fluorescent lighting. In the trichromatic experiment, growth of the wild-type strain under mixed three-color (40%/40%/20%) LED light was indistinguishable from those of the fluorescent control lighting. Chlorophyll a and carotenoid concentrations of Gracilaria grown in the dichromatic light experiment were 55% and 74% higher, respectively, under red + blue LED lighting than under the other light treatments. The wild-type strain of G. tikvahiae possessed significantly greater concentrations of chlorophyll a, and phycoerythrin than did the green mutant, while green mutant thalli had higher phycocyanin levels. With rising LED efficiency and energy savings, \\{LEDs\\} will be an increasingly better choice for indoor seaweed cultivation, especially if control of pigment production and morphogenesis by selective use of particular wavelengths is desirable.

Jang K. Kim; Yunxiang Mao; George Kraemer; Charles Yarish

2015-01-01T23:59:59.000Z

167

Automatic Tracking Solar Street Light Based on Microcontroller  

Science Journals Connector (OSTI)

This paper designed an automatic tracking solar lights based on microcontroller, mainly by the solar panels, solar auto-tracking controller, batteries, lights and other components. Through the solar sensor cir...

Liu Zhen Ya; Guan Chen Zhi; Yan-hu Jiang…

2012-01-01T23:59:59.000Z

168

Text Alternative Version: Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products  

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

Below is the text-alternative version of the "Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products" webcast, held March 28, 2013.

169

Text-Alternative Version: CALiPER Series 21 on LED Linear Lamps and Troffer Lighting  

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

Following is a text version of a video about CALiPER Application Report Series 21 on LED Linear Lamps and Troffer Lighting.

170

New family of tiny crystals glow bright in LED lights | ornl...  

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

New family of tiny crystals glow bright in LED lights ORNL scientist probes atomic structure to improve materials' luminescence efficiency Oak Ridge National Laboratory scientists...

171

LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21  

SciTech Connect

Video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

Beeson, Tracy; Miller, Naomi

2014-06-17T23:59:59.000Z

172

What Do You Think of Your LED Holiday Lights? | Department of Energy  

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

What Do You Think of Your LED Holiday Lights? What Do You Think of Your LED Holiday Lights? What Do You Think of Your LED Holiday Lights? December 23, 2010 - 6:30am Addthis This year, we've been encouraging people to switch to LED light strings for their holiday decorations. With the many options for shapes, colors, and sizes, people are discovering that they like or dislike various aspects of the lights. One of the biggest things to like, of course, is the major energy savings, but some folks have also discovered that the lights have a slightly different color or reflect off of ornaments in a different way. Change can be difficult, especially when we've been seeing the same types of decorations for so many years, but we hope that you've made the switch and are enjoying the savings and festivity that LED lights can add to your

173

What Do You Think of Your LED Holiday Lights? | Department of Energy  

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

Think of Your LED Holiday Lights? Think of Your LED Holiday Lights? What Do You Think of Your LED Holiday Lights? December 23, 2010 - 6:30am Addthis This year, we've been encouraging people to switch to LED light strings for their holiday decorations. With the many options for shapes, colors, and sizes, people are discovering that they like or dislike various aspects of the lights. One of the biggest things to like, of course, is the major energy savings, but some folks have also discovered that the lights have a slightly different color or reflect off of ornaments in a different way. Change can be difficult, especially when we've been seeing the same types of decorations for so many years, but we hope that you've made the switch and are enjoying the savings and festivity that LED lights can add to your

174

Depth of cure and compressive strength of dental composites cured with blue light emitting diodes (LEDs)  

E-Print Network (OSTI)

Depth of cure and compressive strength of dental composites cured with blue light emitting diodes with either a light emitting diode (LED) based light curing unit (LCU) or a conventional halogen LCU do reserved. Keywords: Blue light emitting diodes; Light curing unit; Composites; Irradiance; Spectrum; Depth

Ashworth, Stephen H.

175

Hybrid sunlight/LED illumination and renewable solar energy saving concepts for indoor lighting  

Science Journals Connector (OSTI)

A hybrid method for using sunlight and light-emitting diode (LED) illumination powered by renewable solar energy for indoor lighting is simulated and presented in this study. We can...

Tsuei, Chih-Hsuan; Sun, Wen-Shing; Kuo, Chien-Cheng

2010-01-01T23:59:59.000Z

176

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

177

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

178

Energy-Department Supported Scientist Receives Nobel Prize for Blue Light LED  

Office of Energy Efficiency and Renewable Energy (EERE)

This week, three scientists—two from Japan and one from the United States—received the Nobel Prize in physics for their work on the LED light. The trifecta, Isamu Akasaki, Hiroshi Amano and Shuji Nakamura, earned the prestigious award specifically for their invention of the blue light emitting diode, a game-changer in the history of LED lights. The American scientist, Shuji Nakamura, a pioneer in the lighting industry, is the founder of LED company Soraa, which has a history of working with the Department of Energy—both through EERE and our Advanced Research Projects Agency-Energy (ARPA-E)—on the subject of blue light diodes.

179

Research Support in Hungary Machine scheduling LED public lighting Microsimulation in public transportation Finally Optimization and Operation Research methods for  

E-Print Network (OSTI)

Research Support in Hungary Machine scheduling LED public lighting Microsimulation in public, 2011 Industrial Innovation Problems #12;Research Support in Hungary Machine scheduling LED public Innovation Problems #12;Research Support in Hungary Machine scheduling LED public lighting Microsimulation

Balázs, Bánhelyi

180

Is blue optical filter necessary in high speed phosphor-based white light LED visible light communications?  

Science Journals Connector (OSTI)

Optical blue filter is usually regarded as a critical optical component for high speed phosphor-based white light emitting diode (LED) visible-light-communication (VLC). However, the...

Sung, Jiun-Yu; Chow, Chi-Wai; Yeh, Chien-Hung

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Street-level air quality : exploring the feasibility of a cyclist-led, crowdsourced map in Singapore and Mexico  

E-Print Network (OSTI)

This thesis explores the feasibility of creating a street-level air quality map, whereby cyclists gather data through a participatory sensing process as they ride around the city. I explore two primary areas required for ...

Holub, Amalia R. (Amalia Rae)

2014-01-01T23:59:59.000Z

182

Researchers Say They've Solved the Mystery of LED Lighting "Droop" |  

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

Researchers Say They've Solved the Mystery of LED Lighting "Droop" Researchers Say They've Solved the Mystery of LED Lighting "Droop" Researchers Say They've Solved the Mystery of LED Lighting "Droop" May 5, 2011 - 3:32pm Addthis An illustration of nitride-based LEDs.| Courtesy of the National Energy Research Scientific Computing Center. An illustration of nitride-based LEDs.| Courtesy of the National Energy Research Scientific Computing Center. Margie Wylie Communications Specialist, Berkeley Lab Computing Sciences Team. Despite being cool, ultra-efficient and long lasting, the light-emitting diode (LED) faces a problem called "efficiency droop." New findings from simulations carried out at the National Energy Research Scientific Computer Center (NERSC) have unearthed droop's elusive cause, researchers

183

Largest-area Photonic Crystal LED Fabricated Demonstrates Uniform Light Emission  

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

Lumileds Lighting, the University of New Mexico, and Sandia National Laboratories teamed to demonstrate uniform light emission from the largest-area III-Nitride photonic crystal LED (1 x 1 mm2) ever fabricated. Most previous photonic crystal LED research has relied on small-area patterns written by slow, serial-writing electron-beam lithography.

184

Chip-Scale Power Conversion for LED Lighting: Integrated Power Chip Converter for Solid-State Lighting  

SciTech Connect

ADEPT Project: Teledyne is developing cost-effective power drivers for energy-efficient LED lights that fit on a compact chip. These power drivers are important because they transmit power throughout the LED device. Traditional LED driver components waste energy and don't last as long as the LED itself. They are also large and bulky, so they must be assembled onto a circuit board separately which increases the overall manufacturing cost of the LED light. Teledyne is shrinking the size and improving the efficiency of its LED driver components by using thin layers of an iron magnetic alloy and new gallium nitride on silicon devices. Smaller, more efficient components will enable the drivers to be integrated on a single chip, reducing costs. The new semiconductors in Teledyne's drivers can also handle higher levels of power and last longer without sacrificing efficiency. Initial applications for Teledyne's LED power drivers include refrigerated grocery display cases and retail lighting.

None

2010-10-01T23:59:59.000Z

185

Solid-State Lighting: Text-Alternative Version: The L Prize-Winning LED A19  

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

The L The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 on Google Bookmark Solid-State Lighting: Text-Alternative Version: The L Prize-Winning LED A19 Replacement-What Commercial Building Owners/Operators Can Expect in 2012 on Delicious

186

An Efficient LED System-in-Module for General Lighting Applications  

SciTech Connect

The objective of the project was to realize an LED-based lighting technology platform for general illumination, starting with LED chips, and integrating the necessary technologies to make compact, user-friendly, high-efficiency, energy-saving sources of controlled white (or variable-colored) light. The project is to build the system around the LEDs, and not to work on the LEDs themselves, in order that working products can be introduced soon after the LEDs reach suitable efficiency for mass-production of high-power light sources for general illumination. Because the light sources are intended for general illumination, color must be accurately maintained, requiring feedback control in the electronics. The project objective has been realized and screw base demonstrators, based on the technology developed in the project, have been built.

None

2008-09-14T23:59:59.000Z

187

Street lighting delays and disrupts the dispersal of Atlantic salmon (Salmo salar) fry  

Science Journals Connector (OSTI)

There has been a decline in the abundance of Atlantic salmon (Salmo salar) despite significant conservation measures designed to reduce fishing mortality. Populations at the southern edge of their historical distribution, where anthropogenic impacts on the freshwater environment may be greater, have suffered the largest decline. In this investigation, we compared the timing of Atlantic salmon fry dispersal from incubators in an aquarium under control and ecologically relevant broad spectrum street-lit conditions (median night light intensity = 12 lx). Fry dispersal occurred 2.8 days later (F = 82.9, df = 1,8, p street lighting. Significant disruption to the diel pattern of fry dispersal was also observed. Dispersal under control conditions was significantly directed around a mean time of 4:17 h after dusk (p street lighting, the dispersal of fry was significantly delayed (mean time 6:38 h after dusk; p street-lit conditions (p = 0.21, n = 5000 eggs across 10 incubators). However, in the wild, the period between fry emergence and the establishment of feeding territories is considered to be of critical importance in the dynamics of salmonid populations and any disruption may reduce fitness.

W.D. Riley; P.I. Davison; D.L. Maxwell; B. Bendall

2013-01-01T23:59:59.000Z

188

Numerical prediction of the effect of traffic lights on the vehicle noise at urban street intersections  

Science Journals Connector (OSTI)

Intersections of urban streets are particularly noisy locations due to the addition of the noise from vehicles at different streets a long period of noise emission from queuing vehicles with traffic lights in red and the noise from accelerating vehicles. Besides the traffic lights impose a modulation in the passage of the vehicles so that the subsequent noise variability along time contributes to increase the annoyance degree. This paper presents a code especially developed to simulate both the spatial and temporal distribution of the sound pressure levels induced by the vehicle traffic in street intersections. The algorithm combines a traffic model with vehicles in dynamic motion through the domain with a model for sound propagation based on the method of virtual images in which the determination of the location of the successive image sources was reduced to a reference horizontal plane. Sound emission from each vehicle was established according to the Harmonoise guidelines. After verifying the code predictions by comparison with measurements at several street intersections the method was applied systematically to investigate the effect of varying the regulation parameters of the traffic lights on the Leq and L10 distributions for some particular cases.

Jorge Parrondo; Ruben Zurita; Jose A. Corrales; Joaquin Fernandez

2008-01-01T23:59:59.000Z

189

Nonvisual effects of led coloured ambient lighting on well-being and cardiac reactivity: preliminary findings  

Science Journals Connector (OSTI)

This study examined the immediate nonvisual effects of ambient lighting colours and illuminance on momentary wellbeing and physiology during daytime. As reported in recent literature, the effects of lighting extend beyond comfort and safety issues. Illuminance ... Keywords: LED, cardiac reactivity, colour lighting, illuminance, nonvisual effects, well-being

Michel Varkevisser; Roy J. E. M. Raymann; David V. Keyson

2011-07-01T23:59:59.000Z

190

Production Hall and Inventory Shade Lighting by Solar Energy System and Economical Lighting (LEDs)  

Science Journals Connector (OSTI)

Due to the increasing energy and environmental concern in the world, one must look for alternatives to nonrenewable energy resources and the polluting fossil fuels. The renewable energy sources play an important role in electricity generation as well as many other useful applications. Various renewable energy sources like wind, solar, geothermal, ocean thermal and biomass can be used for generating electricity and meeting our daily energy demands. The solar energy can produce most of the world's requirements of the energy that is produced by the sun and collected on earth. Clean and sustainable energy protect our environment. The solar energy system with economical lighting (LEDs) can be used for lighting the production hall and inventory stores to reduce the energy consumption (watts) to less than a quarter of the normal consumption (high pressure, light HPL) and that will reduce the cost of energy. In addition, using the sun tracker will increase the efficiency of overall daily output of the solar panels more than 34% of the fixed panel. This will make the system more reliable and more economical.

Ahmad K. Jassim; Fouad K. Abood

2012-01-01T23:59:59.000Z

191

Light distribution in dynamic street lighting: Two experimental studies on its effects on perceived safety, prospect, concealment, and escape  

Science Journals Connector (OSTI)

The relationship between light and perceived safety at night is intuitively strong, yet theoretically and empirically its workings are largely unknown. Intelligent dynamic road lighting, which continuously adapts to the presence and behavior of users, can light the street only when and where it is needed. As such, it offers a solution to the energy waste and luminous pollution associated with conventional road lighting. With this innovation, however, new questions emerge about the effect of lighting on perceived safety. We need to consider not only how much lighting pedestrians need to feel safe, but also which parts of the street should be lit. In two experiments, we investigated the effect of different light distributions on perceived safety, and explored mediation by people's appraisal of three safety-related cues suggested in the literature: prospect (having an overview), escape (perceived escape possibilities), and refuge/concealment (perceived hiding places for offenders). Both experiments, one with stationary and one with walking participants, demonstrated that people prefer having light in their own immediate surroundings rather than on the road that lies ahead. This could be explained, partially, by changes in prospect, escape, and concealment. Against expectations, prospect was higher with lighting distributions in which participants' immediate surroundings, but not the more distant parts of the road, were most strongly lit.

Antal Haans; Yvonne A.W. de Kort

2012-01-01T23:59:59.000Z

192

LED Light Fixture Project FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis  

E-Print Network (OSTI)

LED Light Fixture Project ­ FC1 Director's Conference Room: Life Cycle Cost and Break-even Analysis sources. One of the emerging lighting technologies that facilities organizations are looking at are LEDs. A light-emitting diode (LED) is a solid-state lighting source that switches on instantly, is readily

Johnston, Daniel

193

Aerodynamic efficiency of smoke ventilators in light streets and shed-type roofs  

Science Journals Connector (OSTI)

Low-rise industrial buildings in continental Europe have usually no or very little window area in the sidewalls. To provide the necessary daylight, translucent surfaces are fitted in the roof. Well known examples are shed roofs or curved and shed-type light streets in flat roofs. For economic reasons smoke ventilators are then integrated into the light surfaces. This paper gives typical examples of smoke ventilators installed in shed roofs and in curved or shed-type light streets. The measurement of the aerodynamic free areas on full scale apparatus is not possible due to the large dimensions of the relevant roof surfaces. Therefore, tests have to be conducted in model scale. The relevant similarity considerations for such model tests are discussed and the applicability of model scale tests is demonstrated. Finally, the most important parameters influencing the aerodynamic efficiency of typical ventilator installations in shed-roofs and curved or shed-type light streets are described for the cases without and with side wind.

H.J. Gerhardt; C. Kramer

1993-01-01T23:59:59.000Z

194

LED Linear Lamps and Troffer Lighting: CALiPER Report Series 21  

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

View the video about CALiPER Report Series 21 on LED Linear Lamps and Troffer Lighting, featuring interviews with Tracy Beeson and Naomi Miller of Pacific Northwest National Laboratory.

195

Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products  

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

This March 28, 2013 webcast reviewed DOE's recently completed three-part study of the life-cycle energy and environmental impacts of LED lighting products relative to incandescent and CFL...

196

A LIGHT READ: A flexible array of LEDs on a folded sheet of paper.  

E-Print Network (OSTI)

electrically conductive polymers and deposited on bendable plastic substrates. Conventional, inorganic LEDs and inorganic LEDs by harnessing the light of conventional electronics in an elastic system with biomedical potential. "The applications we're interested in mostly include interfaces with the human body," says John

Rogers, John A.

197

Replacement of Lighting Fixtures with LED Energy Efficient Lights at the Parking Facility, Milwaukee, Wisconsin  

SciTech Connect

The Forest County Potawatomi Community (FCPC or Tribe) owns a six-story parking facility adjacent to its Potawatomi Bingo Casino (the Casino) in Milwaukee, Wisconsin, as well as a valet parking facility under the Casino (collectively, the Parking Facility). The Parking Facility contained 205-watt metal halide-type lights that, for security reasons, operated 24 hours per day, 7 days per week. Starting on August 30, 2010, the Tribe replaced these fixtures with 1,760 state-of-the-art, energy efficient 55-Watt LED lights. This project resulted in an immediate average reduction in monthly peak demand of 238 kW over the fourth quarter of 2010. The average reduction in monthly peak demand from October 1 through December 31, 2010 translates into a forecast annual electrical energy reduction of approximately 1,995,000 kWh or 47.3% of the pre-project demand. This project was technically effective, economically feasible, and beneficial to the public not only in terms of long term energy efficiency and associated emissions reductions, but also in the short-term jobs provided for the S.E. Wisconsin region. The project was implemented, from approval by U.S. Department of Energy (DOE) to completion, in less than 6 months. The project utilized off-the-shelf proven technologies that were fabricated locally and installed by local trade contractors.

David Brien

2012-06-21T23:59:59.000Z

198

Seeing the Light: LED Under-Cabinet and Recessed Downlights | Department of  

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

Seeing the Light: LED Under-Cabinet and Recessed Downlights Seeing the Light: LED Under-Cabinet and Recessed Downlights Seeing the Light: LED Under-Cabinet and Recessed Downlights August 2, 2010 - 10:42am Addthis Chris Stewart Senior Communicator at DOE's National Renewable Energy Laboratory I moved into my apartment about four years ago. Little by little, I've continued to make improvements that help me save money on my energy bills. I've: Applied weatherstripping to seal air leaks around windows Insulated my crawl space Installed storm windows to reduce air movement into and out of existing windows (I live in a historic district and can't replace my windows) Installed window shades to help with insulation Replaced my incandescent lighting fixtures with compact fluorescent lamps (CFLs) (I even purchased outdoor solar lights for my dad for Fathers Day.)

199

Evolution of the energy consumed by street lighting in Spain estimated with DMSP-OLS data  

E-Print Network (OSTI)

We present the results of the analysis of satellite imagery to study light pollution in Spain. Both calibrated and non-calibrated DMSP-OLS images were used. We describe the method to scale the non-calibrated DMSP-OLS images which allows us to use differential photometry techniques in order to study the evolution of the light pollution. Population data and DMSP-OLS satellite calibrated images for the year 2006 were compared to test the reliability of official statistics in public lighting consumption. We found a relationship between the population and the energy consumption which is valid for several regions. Finally the true evolution of the electricity consumption for street lighting in Spain from 1992 to 2010 was derived, it have been doubled in the last 18 years in most of the provinces.

de Miguel, Alejandro Sánchez; Castaño, José Gómez; Pascual, Sergio

2013-01-01T23:59:59.000Z

200

Evolution of the energy consumed by street lighting in Spain estimated with DMSP-OLS data  

Science Journals Connector (OSTI)

Abstract We present the results of the analysis of satellite imagery to study light pollution in Spain. Both calibrated and non-calibrated DMSP-OLS images were used. We describe the method to scale the non-calibrated DMSP-OLS images which allows us to use differential photometry techniques in order to study the evolution of the light pollution. Population data and DMSP-OLS satellite calibrated images for the year 2006 were compared to test the reliability of official statistics in public lighting consumption. We found a relationship between the population and the energy consumption which is valid for several regions. Finally the true evolution of the electricity consumption for street lighting in Spain from 1992 to 2010 was derived; it has been doubled in the last 18 years in most of the provinces.

Alejandro Sánchez de Miguel; Jaime Zamorano; José Gómez Castaño; Sergio Pascual

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies -  

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

MSSLC MSSLC Member Case Studies - LED Street Lighting Programs Webinar to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar on Google Bookmark Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar on Delicious Rank Solid-State Lighting: Text-Alternative Version: MSSLC Member Case Studies - LED Street Lighting Programs Webinar on Digg Find More places to share Solid-State Lighting: Text-Alternative

202

Why Did the LED Light Bulb Cross the Road? | Department of Energy  

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

Why Did the LED Light Bulb Cross the Road? Why Did the LED Light Bulb Cross the Road? Why Did the LED Light Bulb Cross the Road? January 24, 2012 - 1:31pm Addthis Big Bill and Little Bill are here to talk with you about energy efficiency on behalf of Energy Impact Illinois. Roland Risser Roland Risser Program Director, Building Technologies Office How can I participate? You can view all of Big Bill and Little Bill's videos on the Energy Bill's YouTube channel. Everyone knows that laughter is good for you. Studies suggest it can buffer stress and increase your resistance to disease. Also, it just feels great to laugh. Advertisers have long used the allure of laughter to sell their products, and many Americans tune in to the Super Bowl just to chuckle at the funny commercials. However, when it comes to selling people on smart

203

Why Did the LED Light Bulb Cross the Road? | Department of Energy  

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

Why Did the LED Light Bulb Cross the Road? Why Did the LED Light Bulb Cross the Road? Why Did the LED Light Bulb Cross the Road? January 24, 2012 - 1:31pm Addthis Big Bill and Little Bill are here to talk with you about energy efficiency on behalf of Energy Impact Illinois. Roland Risser Roland Risser Program Director, Building Technologies Office How can I participate? You can view all of Big Bill and Little Bill's videos on the Energy Bill's YouTube channel. Everyone knows that laughter is good for you. Studies suggest it can buffer stress and increase your resistance to disease. Also, it just feels great to laugh. Advertisers have long used the allure of laughter to sell their products, and many Americans tune in to the Super Bowl just to chuckle at the funny commercials. However, when it comes to selling people on smart

204

Off-grid energy services for the poor: Introducing LED lighting in the Millennium Villages Project in Malawi  

E-Print Network (OSTI)

Off-grid energy services for the poor: Introducing LED lighting in the Millennium Villages Project 2009 Keywords: Solar Lighting Development a b s t r a c t Lanterns that use light-emitting diodes (LEDs as a cost-competitive alternative to kerosene and other fuel-based lighting technologies, offering brighter

Modi, Vijay

205

Abstract--Since a few years, the vehicle industry tends to increase the performances of the lights based on led  

E-Print Network (OSTI)

based on led technologies. Nowadays, led systems are used as a standard by motor vehicles manufacturers. Led lights present higher reliability and are more flexible regarding the design or power adjustments. Furthermore, led systems are also very convenient for intensity modulation like in telecommunication fields

Boyer, Edmond

206

Walnut Street Sansom Street  

E-Print Network (OSTI)

38thStreet 37thStreet 36thStreet 34thStreet 33rdStreet 32ndStreet 39thStreet 40thStreet 30th 220 M34 Dietrich Graduate Library 312, 313 N32 Dunning Coaches' Center 105, 106 P36 Fagin Hall M14, M Writers 3537 Van Pelt-Dietrich Jaffe 133 MCEAS Hayden 1958 Dunning Towne Cohen College Hall Silverman

Sharp, Kim

207

New Family of Tiny Crystals Glow Bright in LED Lights | Advanced Photon  

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

How Serotonin Receptors Can Shape Drug Effects, from LSD to Migraine How Serotonin Receptors Can Shape Drug Effects, from LSD to Migraine Medication X-rays Paint a Picture of Picasso's Pigments Antibody Evolution Could Guide HIV Vaccine Development Blue Ruthenium Dimer Catalysis for Hydrogen Generation A High-Pressure Nano-imaging Breakthrough Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed New Family of Tiny Crystals Glow Bright in LED Lights JUNE 7, 2013 Bookmark and Share Laue microdiffraction pattern acquired from a nanoribbon in experiments at the APS. Minuscule crystals that glow different colors may be the missing ingredient for white light-emitting diode (LED) lighting that illuminates homes and

208

Red light emitting solid state hybrid quantum dot–near-UV GaN LED devices  

Science Journals Connector (OSTI)

We produced core–shell (CdSe)ZnSe quantum dots by direct colloidal chemical synthesis and the surface-passivation method—an overcoating of the core CdSe with a larger-bandgap material ZnSe. The (CdSe)ZnSe quantum dots(QDs) play the role of a colour conversion centre. We call these quantum dots nanophosphors. We fabricated red light emitting hybrid devices of (CdSe)ZnSe QDs and a near-UV GaN LED by combining red light emitting (CdSe)ZnSe quantum dots (as a colour conversion centre) with a near-UV(NUV) GaN LED chip (as an excitation source). A few good red phosphors have been known for UV excitation wavelengths, and red phosphors for UV excitation have been sought for a long time. Here we tested the possibility of using (CdSe)ZnSe QDs as red nanophosphors for UV excitation. The fabricated red light emitting hybrid device of (CdSe)ZnSe and a NUV GaN LED chip showed a good luminance. We demonstrated that the (CdSe)ZnSe quantum dots were promising red nanophosphors for NUV excitation and that a red LED made of QDs and a NUV excitation source was a highly efficient hybrid device.

Hongjoo Song; Seonghoon Lee

2007-01-01T23:59:59.000Z

209

LED Lamp Project Lights the Way to Flicker-Free Replacement Jade Sky Technologies and UC Davis's California Lighting Technology Center demonstrate the  

E-Print Network (OSTI)

, 2014 ­ Jade Sky Technologies ("JST"), a clean-tech start-up manufacturer of LED Technologies and UC Davis's California Lighting Technology Center demonstrate the lighting Specification. JST collaborated with UC Davis's California Lighting Technology Center

California at Davis, University of

210

From carbon to light: a new framework for estimating greenhouse gas emissions reductions from replacing fuel-based lighting with LED systems  

Science Journals Connector (OSTI)

There is considerable well-intended, yet wishful anticipation about reducing greenhouse gas emissions by replacing fuel-based lighting in the developing world with grid-independent light-emitting diode (LED) lighting

Evan Mills; Arne Jacobson

2011-11-01T23:59:59.000Z

211

Text-Alternative Version: LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification  

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

Below is the text-alternative version of the LED Site Lighting in the Commercial Building Sector: Opportunities, Challenges, and the CBEA Performance Specification webcast.

212

Development of Advanced Manufacturing Methods for Warm White LEDs for General Lighting  

SciTech Connect

GE Lighting Solutions will develop precise and efficient manufacturing techniques for the “remote phosphor” platform of warm-white LED products. In volume, this will be demonstrated to drive significant materials, labor and capital productivity to achieve a maximum possible 53% reduction in overall cost. In addition, the typical total color variation for these white LEDs in production will be well within the ANSI bins and as low as a 4-step MacAdam ellipse centered on the black body curve. Achievement of both of these objectives will be demonstrated while meeting a performance target of > 75 lm/W for a warm-white LED and a reliability target of <30% lumen drop / <2-step MacAdam ellipse shift, estimated over 50,000 hrs.

Deshpande, Anirudha; Kolodin, Boris; Jacob, Cherian; Chowdhury, Ashfaqul; Kuenzler, Glenn; Sater, Karen; Aesram, Danny; Glaettli, Steven; Gallagher, Brian; Langer, Paul; Setlur, Anant; Beers, Bill

2012-03-31T23:59:59.000Z

213

Investigation of self-adaptive LED surgical lighting based on entropy contrast enhancing method  

Science Journals Connector (OSTI)

Abstract Investigation was performed to explore the possibility of enhancing contrast by varying the spectral distribution (SPD) of the surgical lighting. The illumination scenes with different \\{SPDs\\} were generated by the combination of a self-adaptive white light optimization method and the LED ceiling system, the images of biological sample are taken by a CCD camera and then processed by an ‘Entropy’ based contrast evaluation model which is proposed specific for surgery occasion. Compared with the neutral white LED based and traditional algorithm based image enhancing methods, the illumination based enhancing method turns out a better performance in contrast enhancing and improves the average contrast value about 9% and 6%, respectively. This low cost method is simple, practicable, and thus may provide an alternative solution for the expensive visual facility medical instruments.

Peng Liu; Huihui Wang; Yaqin Zhang; Junfei Shen; Rengmao Wu; Zhenrong Zheng; Haifeng Li; Xu Liu

2014-01-01T23:59:59.000Z

214

The environmental regulation of maturation in goldfish, Carassius auratus: Effects of various LED light spectra  

Science Journals Connector (OSTI)

Abstract While there have been a number of studies on the effects of photoperiod and duration of light and dark exposure, much less information is available on the importance of light intensity. This study investigated the effects of exposure of goldfish, Carassius auratus exposed to white fluorescent bulbs, and red (peak at 630 nm), and green (530 nm) light emitting diodes (LEDs) at approximately 0.9 W/m2 (12-h light:12-h dark) for four months on a number of hormones of the hypothalamus–pituitary–gonad (HPG) axis, in vivo and in vitro. We investigated the effects of native GnRH molecules (gonadotropin-releasing hormones; salmon GnRH, sGnRH; and chicken GnRH-II, cGnRH-II), gonadotropin hormones (GTH?; follicle-stimulating hormone, FSH-?; luteinizing hormone, LH-?2), kisspeptin 1 (Kiss1) and G protein-coupled receptor 54 (GPR54) mRNA levels. Furthermore, we measured LH and 17?-hydroxypregnenolone levels in plasma and we performed gonad histological observations. GnRHs, Kiss1, GPR54 and GTH mRNA and plasma LH and 17?-hydroxypregnenolone levels in the in vivo and in vitro groups exposed to green \\{LEDs\\} were significantly higher than the other groups. Histological analysis revealed the presence of oocytes in the yolk stage in fish exposed to green light. These results suggest that green wavelengths regulate the HPG axis and enhance sexual maturation in goldfish.

Hyun Suk Shin; Hamid R. Habibi; Cheol Young Choi

2014-01-01T23:59:59.000Z

215

New Rules Help Pocahontas Brighten Streets | Department of Energy  

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

Rules Help Pocahontas Brighten Streets Rules Help Pocahontas Brighten Streets New Rules Help Pocahontas Brighten Streets October 21, 2010 - 10:00am Addthis The City of Pocahontas, Iowa swill replace sodium streetlights with LED fixtures. | File photo The City of Pocahontas, Iowa swill replace sodium streetlights with LED fixtures. | File photo Maya Payne Smart Former Writer for Energy Empowers, EERE What are the key facts? Pocahontas, Iowa was awarded a Recovery Act grant of more than $81,000. The city will replace 266 high-pressure sodium streetlights with LED fixtures. The LED lights are projected to reduce energy and maintenance costs by more than $17, 000 a year. Officials of the City of Pocahontas, Iowa, thought replacing old streetlights with light-emitting diode (LED) lighting was a no-brainer.

216

Advanced Leds | Open Energy Information  

Open Energy Info (EERE)

Leds Leds Jump to: navigation, search Name Advanced Leds Place Coventry, England, United Kingdom Zip CV5 6SP Product Advanced Leds develops LED technology for outdoor lighting, including street lighting applications. Coordinates 44.866737°, -72.263927° 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":44.866737,"lon":-72.263927,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

217

Poudre Valley REA - Commercial Lighting Rebate Program (Colorado) |  

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

Commercial Lighting Rebate Program (Colorado) Commercial Lighting Rebate Program (Colorado) Poudre Valley REA - Commercial Lighting Rebate Program (Colorado) < Back Eligibility Commercial Savings Category Appliances & Electronics Commercial Lighting Lighting Maximum Rebate Commercial Lighting Retrofit: 50% of equipment cost, $20,000 LED Street Lighting/Induction Street Lighting: $20,000 Program Info State Colorado Program Type Utility Rebate Program Rebate Amount LED Refrigerated Case Lighting (Top Lighting): $60 per ln ft LED Refrigerated Case Lighting (Case Lighting): $60 per door LED Street Lighting: $44 - $475 per fixture Induction Street Lighting: $33 - $355 per fixture Commercial Lighting Retrofit: $250 per kW saved Provider Poudre Valley REA Poudre Valley Rural Electric Association (PVREA), a Touchstone Energy

218

Philips Light Sources & Electronics is Developing an Efficient, Smaller, Cost-Effective Family of LED Drivers  

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

With the help of DOE funding, Philips Light Sources & Electronics is developing a new family of LED drivers that are more efficient and cost-effective as well as smaller in size than currently available drivers. The new drivers are switch-mode power supplies that are similar to today's drivers, but with an improved design. In addition, they have a different topology—boost plus LLC—for wattages of 40W and above, but they retain the commonly used flyback topology at lower wattages.

219

LED Lighting in a Performing Arts Building at the University of Florida  

SciTech Connect

The U.S. DOE GATEWAY Demonstration Program supports demonstrations of high-performance solid-state lighting (SSL) products in order to develop empirical data and experience with the in-the-field applications of this advanced lighting technology. This report describes the process and results of the 2013 - 2014 GATEWAY demonstration of SSL technology in the Nadine McGuire Theatre and Dance Pavilion at the University of Florida, Gainesville, FL. The LED solutions combined with dimming controls utilized in four interior spaces - the Acting Studio, Dance Studio, Scene Shop, and Dressing Room - received high marks from instructors, students/performers, and reduced energy use in all cases. The report discusses in depth and detail of each project area including specifications, energy savings, and user observations. The report concludes with lessons learned during the demonstration.

Miller, Naomi J.; Kaye, Stan; Coleman, Patricia; Wilkerson, Andrea M.; Perrin, Tess E.; Sullivan, Gregory P.

2014-07-01T23:59:59.000Z

220

Development of substrate-removal-free vertical ultraviolet light-emitting diode (RefV-LED)  

SciTech Connect

A vertical ultraviolet (UV) light-emitting diode (LED) that does not require substrate removal is developed. Spontaneous via holes are formed in n-AlN layer epitaxially grown on a high conductive n+Si substrate and the injected current flows directly from the p-electrode to high doped n{sup +} Si substrate through p-AlGaN, multi-quantum wells, n-AlGaN and spontaneous via holes in n-AlN. The spontaneous via holes were formed by controlling feeding-sequence of metal-organic gas sources and NH{sub 3} and growth temperature in MOCVD. The via holes make insulating n-AlN to be conductive. We measured the current-voltage, current-light intensity and emission characteristics of this device. It exhibited a built-in voltage of 3.8 V and emission was stated at 350 nm from quantum wells with successive emission centered at 400?nm. This UV LED can be produced, including formation of n and p electrodes, without any resist process.

Kurose, N., E-mail: kurose@fc.ritsumei.ac.jp; Aoyagi, Y. [The Research Organization of Science and Technology, Ritsumeikan University, 1-1-1, Noji-higashi, Kusatsu, Shiga 525-8577 (Japan)] [The Research Organization of Science and Technology, Ritsumeikan University, 1-1-1, Noji-higashi, Kusatsu, Shiga 525-8577 (Japan); Shibano, K.; Araki, T. [Department of Science and Technology, Ritsumeikan University, 1-1-1, Noji-higashi, Kusatsu, Shiga 525-8577 (Japan)] [Department of Science and Technology, Ritsumeikan University, 1-1-1, Noji-higashi, Kusatsu, Shiga 525-8577 (Japan)

2014-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" from the National Library of EnergyBeta (NLEBeta).
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221

Predicting long-term lumen maintenance life of LED light sources using a particle filter-based prognostic approach  

Science Journals Connector (OSTI)

Abstract Lumen degradation is a common failure mode in LED light sources. Lumen maintenance life, defined as the time when the maintained percentages of the initial light output fall below a failure threshold, is a key characteristic for assessing the reliability of LED light sources. Owing to the long lifetime and high reliability of LED lights sources, it is challenging to estimate the lumen maintenance life for LED light sources using traditional life testing that records failure data. This paper describes a particle filter-based (PF-based) prognostic approach based on both Sequential Monte Carlo (SMC) and Bayesian techniques to predict the lumen maintenance life of LED light sources. The lumen maintenance degradation data collected from an accelerated degradation test was used to demonstrate the prediction algorithm and methodology of the proposed PF approach. Its feasibility and prediction accuracy were then validated and compared with the TM-21 standard method that was created by the Illuminating Engineering Society of North America (IESNA). Finally, a robustness study was also conducted to analyze the initialization of parameters impacting the prediction accuracy and the uncertainties of the proposed PF method. The results show that, compared to the TM-21 method, the PF approach achieves better prediction performance, with an error of less than 5% in predicting the long-term lumen maintenance life of LED light sources.

Jiajie Fan; Kam-Chuen Yung; Michael Pecht

2015-01-01T23:59:59.000Z

222

Performance of a novel LED lamp arrangement to reduce SNR fluctuation for multi-user visible light communication systems  

Science Journals Connector (OSTI)

This paper investigates the performance of our recently proposed LED lamp arrangement to reduce the SNR fluctuation from different locations in the room for multi-user visible light...

Wang, Zixiong; Yu, Changyuan; Zhong, Wen-De; Chen, Jian; Chen, Wei

2012-01-01T23:59:59.000Z

223

Fabrication and Characterization of a GaN Light-emitting Diode (LED) with a Centered Island Cathode  

Science Journals Connector (OSTI)

Uniform spreading of injection current in light-emitting diodes (LEDs) is one of the crucial requirements for better device performances. It is reported that non-uniform current...

Park, Yun Soo; Lee, Hwan Gi; Yang, Chung-Mo; Kim, Dong-Seok; Bae, Jin-Hyuk; Cho, Seongjae; Lee, Jung-Hee; Kang, In Man

2012-01-01T23:59:59.000Z

224

DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting in a High-Temperature Environment  

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

The U.S. Department of Energy has released a GATEWAY report on a trial demonstration in which the incumbent quartz metal halide (QMH) area lighting was replaced with LED at three pole locations...

225

Techno-economic Evaluation of the Feasibility of a Smart Street Light System: A case study of Rural India  

Science Journals Connector (OSTI)

Throughout the world application of vehicle and infrastructure based intelligent transportation systems have been increased over the last decade. Most of these advanced intelligent technologies are only used in urban areas. Successful introduction of such intelligent technologies can enhance the level of safety, security and efficiency of transportation system in rural communities and support country's growth. In this research, a techno-economic feasibility evaluation of a smart street light (SSL) system, in the context of rural areas in India, has been carried out. In order to evaluate the proposed SSL system we have considered a case study of the remotely located Khurhaan village in the state of Bihar, India. The result suggested that adopting SSL over the conventional street light system gives a cost saving of 91,506 annually.

Nagendra R Velaga; Amit Kumar

2012-01-01T23:59:59.000Z

226

Street lighting disrupts the diel migratory pattern of wild Atlantic salmon, Salmo salar L., smolts leaving their natal stream  

Science Journals Connector (OSTI)

The migratory timing and behaviour of wild Atlantic salmon smolts leaving their natal stream was determined using a passive integrated transponder (PIT) antennae system at a study site on a tributary of the River Itchen, England. Experiments compared the downstream migration of smolts under natural control conditions (2000–2006) with two years (2008 and 2009) when the main downstream exit of the study site was subject to street-lit conditions every alternate night (maximum light intensity measured at the stream surface = 14 lx). Migration of smolts under control conditions was significantly (p street lighting resulted in the timing of migration being random (p = 0.11, n = 7; p = 0.76, n = 34, respectively) with respect to time of day. Furthermore, migration of smolts was significantly (p = 0.01, n = 19) correlated with the time of sunset for fish migrating when the lamp had been off, but random (p = 0.36, n = 22) when the lamp had been on (2008 and 2009 data, combined). This alteration in migratory behaviour due to street lighting may impact fitness.

W.D. Riley; B. Bendall; M.J. Ives; N.J. Edmonds; D.L. Maxwell

2012-01-01T23:59:59.000Z

227

Demonstration Assessment of Light Emitting Diode (LED) Residential Downlights and Undercabinet Lights in the Lane County Tour of Homes, Eugene, Oregon  

SciTech Connect

In August 2008 the Pacific Northwest National Laboratory (PNNL) conducted a light emitting diode (LED) residential lighting demonstration project for the U.S. Department of Energy (DOE), Office of Building Technologies, as part of DOE’s Solid State Lighting (SSL) Technology Demonstration Gateway Program. Two lighting technologies, an LED replacement for downlight lamps (bulbs) and an LED undercabinet lighting fixture, were tested in the demonstration which was conducted in two homes built for the 2008 Tour of Homes in Eugene, Oregon. The homes were built by the Lane County Home Builders Association (HBA), and Future B Homes. The Energy Trust of Oregon (ETO) also participated in the demonstration project. The LED downlight product, the LR6, made by Cree LED Lighting Solutions acts as a screw-in replacement for incandescent and halogen bulbs in recessed can downlights. The second product tested is Phillips/Color Kinetics’ eW® Profile Powercore undercabinet fixture designed to mount under kitchen cabinets to illuminate the countertop and backsplash surfaces. Quantitative and qualitative measurements of light performance and electrical power usage were taken at each site before and after initially installed halogen and incandescent lamps were replaced with the LED products. Energy savings and simple paybacks were also calculated and builders who toured the homes were surveyed for their responses to the LED products. The LED downlight product drew 12 Watts of power, cutting energy use by 82% compared to the 65W incandescent lamp and by 84% compared to the 75W halogen lamp. The LED undercabinet fixture drew 10 watts, cutting energy use by 83% to 90% compared to the halogen product, which was tested at two power settings: a low power 60W setting and a high power 105W setting. The LED downlight consistently provided more light than the halogen and incandescent lamps in horizontal measurements at counter height and floor level. It also outperformed in vertical illuminance measurements taken on the walls, indicating better lateral dispersion of the light. The undercabinet fixture’s light output was midway between the low and high power halogen undercabinet fixture light outputs (35.8 foot candle versus 13.4 fc and 53.4 fc) but it produced a more uniform light (max/min ratio of 7.0 versus 10.8). The color correlated temperature (CCT, the blue or yellowness) of the LED light correlated well with the halogen and incandescent lights (2675 K vs 2700 K). The color rendering of the LED downlight also correlated well at 92 CRI compared to 100 CRI for the halogen and incandescent lamps. The LED undercabinet fixture had measures of 2880 K CCT and 71 CRI compared to the 2700 K and 100 CRI scores for the halogen undercabinet fixture. Builders who toured the homes were surveyed; they gave the LED downlight high marks for brightness, said the undercabinet improved shadows and glare and said both products improved overall visibility, home appearance, and home value. Paybacks on the LED downlight ranged from 7.6 years (assuming electricity cost of 11 c/kWh) to 13.5 years (at 5C/kWh). Paybacks on the LED undercabinet fixture in a new home ranged from 4.4 years (11c/kWh electricity) to 7.6 years (5c/kWh) based on product costs of $95 per LED downlight and $140 per LED undercabinet fixture at 3 hrs per day of usage for the downlight and 2 hrs per day for the undercabinet lighting.

Ton, My K.; Richman, Eric E.; Gilbride, Theresa L.

2008-11-10T23:59:59.000Z

228

Abstract 4138: Fluorescence laparoscopy with an LED light source enables fluorescence-guided resection of pancreatic cancer, labeled with fluorophore-conjugated antibodies, in mouse models.  

Science Journals Connector (OSTI)

...4138: Fluorescence laparoscopy with an LED light source enables fluorescence-guided...495-nm emission filter and a Stryker L9000 LED light source 24 hours after tail vein injection...Bouvet. Fluorescence laparoscopy with an LED light source enables fluorescence-guided...

Cristina A. Metildi; Sharmeela Kaushal; George A. Luiken; Mark A. Talamini; Robert M. Hoffman; Michael Bouvet

2013-04-15T23:59:59.000Z

229

DOE Publishes Technical Brief Clarifying Misconceptions about Safety of LED Lighting  

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

The spectral emission of LEDs is a frequent subject of concern, so to set the record straight, the U.S. Department of Energy has published a technical brief entitled True Colors: LEDs and the...

230

SAR-controlled adaptive off-time technique without sensing resistor for achieving high efficiency and accuracy LED lighting system  

Science Journals Connector (OSTI)

A successive approximation register (SAR) is utilized to control adaptive off-time in order to regulate accurate light-emitting diode (LED) current and improve efficiency of LED driver. The proposed SAR-controlled adaptive off-time technique without ... Keywords: adaptive off-time, hysteretic current control (HCC), on-chip low-side current sensing, peak current control (PCC), pulsewidth modulation (PWM) dimming, successive approximation register (SAR)

Chao-Hsuan Liu; Chun-Yu Hsieh; Yu-Chiao Hsieh; Ting-Jung Tai; Ke-Horng Chen

2010-06-01T23:59:59.000Z

231

LED Basics | Department of Energy  

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

Basics LED Basics Unlike incandescent and fluorescent lamps, LEDs are not inherently white light sources. Instead, LEDs emit nearly monochromatic light, making them highly...

232

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

Science Journals Connector (OSTI)

Artificial lighting systems are transitioning from incandescent to compact fluorescent lamp (CFL) and light-emitting diode (LED) bulbs in response to the U.S. Energy Independence and Security Act and the EU Ecodesign Directive, which leads to energy savings and reduced greenhouse gas emissions. ... The CFLs and LEDs have higher resource depletion and toxicity potentials than the incandescent bulb due primarily to their high aluminum, copper, gold, lead, silver, and zinc. ... mercury pollution; redn. in electricity demand from the substitution of incandescent bulbs with fluorescents leads to reduced mercury emissions during the use of the bulb. ...

Seong-Rin Lim; Daniel Kang; Oladele A. Ogunseitan; Julie M. Schoenung

2012-12-13T23:59:59.000Z

233

Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis' California Lighting Technology Center will utilize Jade Sky Technologies' driver ICs to help spur  

E-Print Network (OSTI)

Jade Sky Technologies Partners with CLTC on LED Replacement Lamp Upgrade Project UC Davis of cost-effective, easy-to-use LED lighting solutions Milpitas, Calif. ­ October 15, 2013 ­ Jade Sky Technologies (JST), a clean-tech start-up manufacturer of driver ICs for LED lighting applications, announces

California at Davis, University of

234

Top 8 Things You Didn't Know About LEDs | Department of Energy  

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

8 Things You Didn't Know About LEDs 8 Things You Didn't Know About LEDs Top 8 Things You Didn't Know About LEDs June 4, 2013 - 9:20am Addthis Using funding from the Energy Department, Philips Lumileds developed the LUXEON S1000 -- a commercial LED product used in outdoor street and parking lot lighting. While small, this chip is the heart of the light and as of June 2012 was brighter than a 60-watt light bulb. | Photo courtesy of Philips Lumileds. Using funding from the Energy Department, Philips Lumileds developed the LUXEON S1000 -- a commercial LED product used in outdoor street and parking lot lighting. While small, this chip is the heart of the light and as of June 2012 was brighter than a 60-watt light bulb. | Photo courtesy of Philips Lumileds. Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs

235

Top 8 Things You Didn't Know About LEDs | Department of Energy  

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

LEDs LEDs Top 8 Things You Didn't Know About LEDs June 4, 2013 - 9:20am Addthis Using funding from the Energy Department, Philips Lumileds developed the LUXEON S1000 -- a commercial LED product used in outdoor street and parking lot lighting. While small, this chip is the heart of the light and as of June 2012 was brighter than a 60-watt light bulb. | Photo courtesy of Philips Lumileds. Using funding from the Energy Department, Philips Lumileds developed the LUXEON S1000 -- a commercial LED product used in outdoor street and parking lot lighting. While small, this chip is the heart of the light and as of June 2012 was brighter than a 60-watt light bulb. | Photo courtesy of Philips Lumileds. Rebecca Matulka Rebecca Matulka Digital Communications Specialist, Office of Public Affairs

236

Polarization-multiplexed 2×2 phosphor-LED wireless light communication without using analog equalization and optical blue filter  

Science Journals Connector (OSTI)

Abstract We propose and experimentally demonstrate a 380 (2×190) Mbps phosphor-light-emitting-diode (LED) based visible light communication (VLC) system by using 2×2 polarization-multiplexing design for in-building access applications. To the best of our knowledge, this is the first time of employing polarization-multiplexing to achieve a high VLC transmission capacity by using phosphor-based white-LED without optical blue filter. Besides, utilizing the optimum resistor–inductor–capacity (RLC) bias-tee design, it can not only perform the function of combining the direct-current (DC) and the electrical data signal, but also act as a simple LED-Tx circuit. No optical blue filter and complicated post-equalization are required at the Rx. Here, the orthogonal-frequency-division-multiplexing (OFDM) quadrature-amplitude-modulation (QAM) with bit-loading is employed to enhance the transmission data rate.

C.H. Yeh; H.Y. Chen; Y.L. Liu; C.W. Chow

2015-01-01T23:59:59.000Z

237

DOE Publishes GATEWAY Report on High-Luminous-Flux LED Lighting...  

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

of the lighting system, despite the reduction in pole height. The combination of the optics and lower pole height reduced stray light considerably. The expected annual...

238

Reducing LED Costs Through Innovation | Department of Energy  

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

Reducing LED Costs Through Innovation Reducing LED Costs Through Innovation Reducing LED Costs Through Innovation November 19, 2013 - 3:49pm Addthis A combination solid-state laser turret cutter and stamping machine cuts a thin steel plate that will be formed into lighting fixture housing. Wisconsin-based Eaton Corporation is developing a new manufacturing process that streamlines LED fixture designs. | Photo courtesy of Eaton Corporation A combination solid-state laser turret cutter and stamping machine cuts a thin steel plate that will be formed into lighting fixture housing. Wisconsin-based Eaton Corporation is developing a new manufacturing process that streamlines LED fixture designs. | Photo courtesy of Eaton Corporation A goniometer measures the photometric output distribution of an outdoor LED street light fixture. Researchers at Eaton are developing a new manufacturing process will enable LED chips to sit directly on heat sinks, improving heat transfer. | Photo courtesy of Eaton Corporation

239

LED Provides Effective and Efficient Parking Area Lighting at the NAVFAC Engineering Service Center  

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

Document details new lighting technology that reduces energy consumption and reduces maintenance, while providing effective illumination.

240

Assessing the Performance of 5mm White LED Light Sources for Developing-Country Applications  

E-Print Network (OSTI)

performance variations. Incandescent and fluorescent lightbetter than the common incandescent lamp. Off-grid lighting

Mills, Evan

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Life cycle cost analysis of three renewed street lighting installations in Finland  

Science Journals Connector (OSTI)

The goal of the LCC study is to compare the costs occurring during ... to proof whether it is economic to update streetlights from HPM lamps and to assess the effect of LED technology development on LCCs in diffe...

Leena Tähkämö; Anne Ylinen…

2012-02-01T23:59:59.000Z

242

White lighting LEDs are fast replacing conventional lighting because not only are they energy efficient light sources but also can be modulated at frequencies up to 20MHz for high-speed wireless communication, especially for indoor applications.  

E-Print Network (OSTI)

are they energy efficient light sources but also can be modulated at frequencies up to 20MHz for high-speedBackground White lighting LEDs are fast replacing conventional lighting because not only wireless communication, especially for indoor applications. Moreover, using visible light as the source

Sekercioglu, Y. Ahmet

243

Highly energy-efficient agricultural lighting by B+R \\{LEDs\\} with beam shaping using micro-lens diffuser  

Science Journals Connector (OSTI)

This paper presents a high-performance LED agricultural luminaire that uses a beam-shaping diffuser to achieve high optical efficiency and energy saving. The agricultural luminaire performs an optical efficiency as high as 84.2%. The beam shaping effect also obtains irradiance uniformity of 1/2.56 and excellent spatial color uniformity. The enhancement ratio of optical utilization factor in the proposed agricultural luminaire is 360% in comparison with traditional lighting. Under the designed case, the total utilization factor, including optical utilization factor and spectral utilization factor, of the B+R LED lamp can save 86.1% of power consumption in comparison with compact fluorescent bulbs.

Xuan-Hao Lee; Yu-Yu Chang; Ching-Cherng Sun

2013-01-01T23:59:59.000Z

244

EECBG Success Story: Solar LED Light Pilot Project Illuminates the Way in Alabama  

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

A strip of new solar-powered LED streetlights in Boaz, Alabama were installed with grant funds from the Alabama Department of Economic and Community Affairs and $221,900 from the Energy Department through the Energy Efficiency and Conservation Block Grant (EECBG) program. Learn more.

245

LED Lightbulbs | Department of Energy  

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

ledshires.jpg Description LED lightbulbs More Documents & Publications LED Lightbulbs CFL Lightbulbs Lighting Choices - White Background...

246

Physical Layer Characteristics and Techniques for Visible Light Communications  

E-Print Network (OSTI)

as tra?c lights, street lights, and automobile headlights orarea where numerous street lights and advertising boardslighting purposes (e.g. , street light, decoration light,

Cui, Kaiyun

2012-01-01T23:59:59.000Z

247

The light-emitting diode (LED) is an fairly new kind of light source found currently in  

E-Print Network (OSTI)

this technology an ideal replacement for less efficient incandescent light sources, particularly in applications elevator lighting has the potential to achieve 25 percent greater efficiency than current incandescent ILLUMINATION LEVELS SIMILAR TO THOSE OF INCANDESCENT FIXTURES WHILE CUTTING ENERGY USE 45 PERCENT. ELEVATOR

248

Mathematical simulation of street traffic in the presence of traffic lights  

Science Journals Connector (OSTI)

One-dimensional traffic flow in the presence of two-position traffic lights is considered. A quasi-linear differential equation of the first order for traffic flow density is used as a model. The problem to be...

M. V. Lur’e

2010-06-01T23:59:59.000Z

249

On-road emission factors of PM pollutants for light-duty vehicles (LDVs) based on urban street driving conditions  

Science Journals Connector (OSTI)

An on-road sampling campaign was conducted on two major surface streets (Wilshire and Sunset Boulevards) in Los Angeles, CA, to characterize PM components including metals, trace elements, and organic species for three PM size fractions (PM10–2.5, PM2.5–0.25, and PM0.25). Fuel-based emission factors (mass of pollutant per kg of fuel) were calculated to assess the emissions profile of a light-duty vehicle (LDV) traffic fleet characterized by stop-and-go driving conditions that are reflective of urban street driving. Emission factors for metals and trace elements were highest in PM10–2.5 while emission factors for \\{PAHs\\} and hopanes and steranes were highest in PM0.25. PM2.5 emission factors were also compared to previous freeway, roadway tunnel, and dynamometer studies based on an LDV fleet to determine how various environments and driving conditions may influence concentrations of PM components. The on-road sampling methodology deployed in the current study captured substantially higher levels of metals and trace elements associated with vehicular abrasion (Fe, Ca, Cu, and Ba) and crustal origins (Mg and Al) than previous LDV studies. The semi-volatile nature of \\{PAHs\\} resulted in higher levels of \\{PAHs\\} in the particulate phase for LDV tunnel studies (Phuleria et al., 2006) and lower levels of \\{PAHs\\} in the particulate phase for freeway studies (Ning et al., 2008). With the exception of a few high molecular weight PAHs, the current study's emission factors were in between the LDV tunnel and LDV freeway studies. In contrast, hopane and sterane emission factors were generally comparable between the current study, the LDV tunnel, and LDV freeway, as expected given the greater atmospheric stability of these organic compounds. Overall, the emission factors from the dynamometer studies for metals, trace elements, and organic species are lower than the current study. Lastly, n-alkanes (C19–C40) were quantified and alkane carbon preference indices (CPIs) were determined to be in the range of 1–2, indicating substantial anthropogenic source contribution for surface streets in Los Angeles.

Winnie Kam; James W. Liacos; James J. Schauer; Ralph J. Delfino; Constantinos Sioutas

2012-01-01T23:59:59.000Z

250

GREEN LIVING Replace incandencent and halogen light bulbs with LED and CLFs  

E-Print Network (OSTI)

GREEN LIVING GUIDE ENERGY TRAVEL FOOD sustain yosef WATER Replace incandencent and halogen light POWER STRIPS! for you electronics, and turn them off when not in use Adjust your thermostat UP IN SUMMER Bicycle Initiative http://boonebikeinitiative.org LEAVE YOUR CAR AT HOME - save $ on a parking pass

Thaxton, Christopher S.

251

LED ProspectsLED Prospects photometric units  

E-Print Network (OSTI)

/5/8 #12;16 Light bulb comparisonLight bulb comparison W lumens khours CRI $US Incandescent (long life) 75-life incandescent with LED. · 10 light fixtures/home, lights on for 6h/day, 333 days/yr. · Electricity 0.12 $/kWh. W khours $US Incandescent (long life) 100 10 2 LED (PAR38, warm, dimmable) 11 40 90 · What is the lifetime

Pulfrey, David L.

252

How to upgrade your incandescent light bulbs Many people are choosing replacements for their standard incandescent light bulbs to save money or energy, because they've heard of new LED  

E-Print Network (OSTI)

for their standard incandescent light bulbs to save money or energy, because they've heard of new LED options to choose replacement light bulbs. You can save energy and money by replacing any standard incandescent from The Lighting Pattern Book for Homes, LRC 1993. Lighting Energy Use by Room BR · Note the type

Bystroff, Chris

253

Office of Research and Economic Development 1111 Spring Garden Street, Suite 1601  

E-Print Network (OSTI)

stoplight onto Spring Garden Street. Take a right onto Forest Street (first light after Yum-Yum's and Old stoplight, turn left on Spring Garden Street. Take a right onto Forest Street (first light after Yum stoplight turn left onto Spring Garden Street. Take a right onto Forest Street (first light after Yum

Saidak, Filip

254

Effect of the combination of ethylene and red LED light irradiation on carotenoid accumulation and carotenogenic gene expression in the flavedo of citrus fruit  

Science Journals Connector (OSTI)

Abstract The effects of ethylene and red light-emitting diode (LED) light (660 nm) on the accumulation of carotenoid and expression of genes related to carotenoid biosynthesis were investigated in the flavedo of Satsuma mandarin. The results showed that the contents of ?-cryptoxanthin, all-trans-violaxanthin, 9-cis-violaxanthin and lutein were simultaneously increased along with the total carotenoid accumulation by the red LED light. With the ethylene treatment, the contents of ?-carotene and ?-cryptoxanthin were increased, while the content of lutein was decreased in the flavedo. The suppression of lutein accumulation by ethylene was inhibited when the ethylene treatment was performed under the red LED light. With the combination of ethylene and red LED light treatments, the contents of ?-cryptoxanthin and lutein were simultaneously increased. Gene expression results showed that simultaneous increases in the expression of CitPSY, CitPDS, CitZDS, CitCRTISO, CitLCYb1, CitLCYb2, CitLCYe, CitHYb, and CitZEP contributed to the accumulation of ?-cryptoxanthin and lutein in the treatment of ethylene combined with red LED light. The results presented might provide new strategies to enhance the commercial and nutritional value of citrus fruit.

Gang Ma; Lancui Zhang; Masaya Kato; Kazuki Yamawaki; Yoshikazu Kiriiwa; Masaki Yahata; Yoshinori Ikoma; Hikaru Matsumoto

2015-01-01T23:59:59.000Z

255

Recessed LED Downlights  

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

Recessed LED Downlights Recessed downlights are commonly used for ambient and directional lighting in both residential and commercial build- ings. One of the earliest applications...

256

Using LEDs | Department of Energy  

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

maintenance, and long life-LEDs are well suited to a variety of lighting applications. LED products are most competitive in applications where these performance characteristics...

257

CALIFORNIA ENERGY COMMISSION 1516 Ninth Street  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www acceptance testing for lighting controls and mechanical systems, and their employers. Concurrent COMMISSION 1516 Ninth Street 1st Floor, Hearing Room A Sacramento, California Wheelchair Accessible Remote

258

STAY TO THE RIGHT ON UNION STREET Roosevelt Road  

E-Print Network (OSTI)

STAY TO THE RIGHT ON UNION STREET Roosevelt Road NORTH HalstedStreet UnionAvenue Rochford Street Maxwell Street I-94DanRyanExpressway MXPS Maxwell Street Parking Structure X Stukel Towers (student onto W. Roosevelt Rd. Turn left at the first light onto S. Union Ave. From the North I-90 E

Illinois at Chicago, University of

259

Recessed LED Downlights | Department of Energy  

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

Recessed LED Downlights Recessed LED Downlights A Dept of Energy Solid-State Lighting Program technology fact sheet on recessed LED downlights. recesseddownlight.pdf More...

260

Future Directions in LED Applications  

Science Journals Connector (OSTI)

Another application space that will gain in importance is the use of LED lighting in agricultural applications . LED lighting for horticulture [60] is continuing to be investigated as more continues to be learne...

Robert F. Karlicek Jr. PhD

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Reducing LED Costs Through Innovation  

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

A Wisconsin-based company is developing an innovative way to reduce manufacturing costs of light-emitting diodes (LEDs).

262

Sandia National Laboratories: LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

263

STREET CARS IN GLASGOW  

Science Journals Connector (OSTI)

STREET CARS IN GLASGOW 10.1126/science.12.300.491-a STREET CARS IN GLASGOW. | Journal Article...ocelots, orang-outangs, panthers, raccoons, rhinoceroses...delivery of the property. STREET CARS IN GLASGOW. THE street car...

1900-09-28T23:59:59.000Z

264

Assessing the Performance of LED-Based Flashlights Available in the Kenyan Off-Grid Lighting Market  

E-Print Network (OSTI)

have largely displaced incandescent flashlights in retailinvolving the use of incandescent lighting, unless there areFluorescent Flashlight C Incandescent SPX 50 Fluorescent y x

Tracy, Jennifer

2010-01-01T23:59:59.000Z

265

Visible Light Digital Camera --Up to 2.3MP resolution with LED lamps provides sharp images  

E-Print Network (OSTI)

· Laser LocatIRTM Pointer -- Pinpoints the hot spot on the IR image with the real physical target (FLIR i case FLIR i40 Additional Features · 0.6MP Visible Light Camera resolution · Picture in Picture (PIP) fixed · 14,400 pixels (120 x 120) FLIR i50 Additional Features · 2.3MP Visible Light Camera resolution

Short, Daniel

266

Effects of LED–laser hybrid light on bleaching effectiveness and tooth sensitivity: a randomized clinical study  

Science Journals Connector (OSTI)

The study evaluated the effectiveness and the sensitivity of in-office tooth bleaching with the use of a hybrid photo-activation system composed by LEDs and lasers. 40 patients, both genders, aged 18 through 25 years, were randomly distributed into two treatment groups: group I, 35% hydrogen peroxide, with a total bleaching time of 135 min divided into three sessions, and group II, 35% hydrogen peroxide and photo-thermal catalysis by an LED–laser system (300 mW cm?2), for a total bleaching time of 72 min divided into three sessions. The treatment efficiency was measured by reflectance spectroscopy and sensitivity by a visual analog scale (VAS). The final luminosity value (?L), color variation (?E) and sensitivity (S) resulting from the treatments were analyzed by the generalized estimating equations method (GEEs), and Bonferroni post hoc multiple comparisons at 5% significance. The two groups presented similar colors (?E) and luminosities (?L) after treatment. Group I presented a greater sensitivity index (37.6 ± 5.9%) compared to group II (11.1 ± 3.3%), statistically significant at p 

Janaina F Bortolatto; Hermes Pretel; Carolina S Neto; Marcelo F Andrade; Gustavo Moncada; Osmir B Oliveira Junior

2013-01-01T23:59:59.000Z

267

Assessment of LED Technology in Ornamental Post-Top Luminaires (Host Site: Sacramento, CA)  

SciTech Connect

The DOE Municipal Solid-State Street Lighting Consortium has evaluated four different LED replacements for existing ornamental post-top street lights in Sacramento, California. The project team was composed of the City and its consultant, PNNL (representing the Consortium), and the Sacramento Municipal Utility District. Product selection was finalized in March 2011, yielding one complete luminaire replacement and three lamp-ballast retrofit kits. Computer simulations, field measurements, and laboratory testing were performed to compare the performance and cost-effectiveness of the LED products relative to the existing luminaire with 100 W high-pressure sodium lamp. After it was confirmed the LED products were not equivalent to HPS in terms of initial photopic illumination, the following parameters were scaled proportionally to enable equitable (albeit hypothetical) comparisons: light output, input wattage, and pricing. Four replacement scenarios were considered for each LED product, incorporating new IES guidance for mesopic multipliers and lumen maintenance extrapolation, but life cycle analysis indicated cost effectiveness was also unacceptable. Although LED efficacy and pricing continue to improve, this project serves as a timely and objective notice that LED technology may not be quite ready yet for such applications.

Tuenge, Jason R.

2011-12-01T23:59:59.000Z

268

Sandia National Laboratories: high-brightness LED  

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

brightness LED ECIS-Veeco: Research Driving Down the Costs of Efficient LED Lighting On February 14, 2013, in Energy, Energy Efficiency, Materials Science, Partnership, Research &...

269

General Service LED Lamps | Department of Energy  

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

DOE SSL technology fact sheet that compares general service LED light bulbs with incandescent and CFL bulbs. ledgeneral-service-lamps.pdf More Documents & Publications LED...

270

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

E-Print Network (OSTI)

powered by a solar-wind hybrid system, the kerosene house,a 520-watt solar-wind hybrid system to power fluorescentLighting System Kerosene Solar-Wind Hybrid Fluorescent Solar

Tracy, Jennifer

2012-01-01T23:59:59.000Z

271

Information Resources: Solid-State Lighting Videos  

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

Videos Videos On this page you can access DOE Solid-State Lighting (SSL) Program videos. Photo of a museum art gallery with LED lights in track fixtures overhead. The City of Los Angeles LED Streetlight Program View the video about the Los Angeles LED streetlight program, featuring an interview with City of Los Angeles Bureau of Street Lighting Director, Ed Ebrahimian. Photo of a museum art gallery with LED lights in track fixtures overhead. The Smithsonian American Art Museum GATEWAY Demonstration View the video about using LEDs in a GATEWAY demonstration at the Smithsonian American Art Museum in Washington, DC, including an interview with lighting designer Scott Rosenfeld. graphic of many intersecting white lines on a blue background Orchestrating Market Success

272

FEMP Outdoor Solid State Lighting Intiative: Resources for Outdoor SSL Applications  

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

Municipal Solid-State Street Lighting Municipal Solid-State Street Lighting Consortium Fact Sheet - The Consortium shares technical information and experi- ences related to LED street and area light- ing demonstrations. The Consortium also serves as an objective resource for evalu- ating new products on the market intended for street and area lighting applications. http://apps1.eere.energy.gov/buildings/ publications/pdfs/ssl/consortium_fs.pdf DOE SSL GATEWAY Demonstration Project Results - DOE GATEWAY dem- onstrations showcase high-performance LED products for general illumination in a variety of commercial and residential applications. Demonstration results pro- vide real-world experience and data on state-of-the-art SSL product performance and cost effectiveness. DOE CALiPER Test Results - The DOE

273

Excitation resolved color conversion of CdSe/ZnS core/shell quantum dot solids for hybrid white light emitting diodes  

E-Print Network (OSTI)

-volume spectrum-specific applications in- cluding scotopic street lighting, greenhouse lighting, and high-CRI warm light emitting diodes Sedat Nizamoglu and Hilmi Volkan Demira Department of Electrical and Electronics light emitting diodes LEDs , we present spectrally resolved relative quantum efficiency and relative

Demir, Hilmi Volkan

274

UC Davis Health System Education Building 4610 X Street, Sacramento, CA 95817 Admissions Office Phone Number: (916) 734-4800  

E-Print Network (OSTI)

(Exit 7) 2) Turn Left on 34th Street ­ Stay in Immediate Right Lane 3) Turn Right at light on T Street 4 Exit 2) Turn Left on 34th Street ­ Stay in Immediate Right Lane 3) Take Right at Light onto T Street 4UC Davis Health System Education Building 4610 X Street, Sacramento, CA 95817 Admissions Office

Leistikow, Bruce N.

275

Permit Parking Emergency Blue Light  

E-Print Network (OSTI)

P P P P P P P P P P P P P P P P P PP P P P P P Permit Parking Food P P Emergency Blue Light underground Emergency Blue Light outdoors Wheelchair Wheelchair prior arrangements necessary Telephone Visitor 144 Albert Street 21 152 Albert Street 20 154 Albert Street 94 34 Barrie Street 91 68 Barrie Street 90

Abolmaesumi, Purang

276

Development of LED mini-Lidar  

Science Journals Connector (OSTI)

In this study, we aim to develop a mini-lidar system using a LED (Light Emitting Diode) as the light source for near-range measurement. Because LED is small size device and its...

Koyama, Moriaki; Shiina, Tatsuo

277

Pioneer Hall 615 Fulton Street SE  

E-Print Network (OSTI)

Pioneer Hall 615 Fulton Street SE Minneapolis, MN 55455 Office: 612.626.3333 pioneer if documented for violating a housing policy if their finals are completed. Turn off all lights and unplug

Janssen, Michel

278

A Practical Primer to LED Technology  

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

2011 LED Transformations, LLC 2011 LED Transformations, LLC 1 LED Lighting: A Practical Overview DOE Project Management Workshop March 15, 2011 Dr. John W. Curran, President, LED Transformations, LLC On behalf of the U.S. Department of Energy ©2011 LED Transformations, LLC 2 Learning Objectives LED Lighting: A Practical Overview 1. Critical differences between SSL and other lighting technologies 2. Understanding the effect of thermal management on product lifetime 3. How to distinguish good from poor SSL products and applications Residence, Kapalua, HI ©2011 LED Transformations, LLC 3 Copyright Materials This presentation is protected by US and International copyright laws. Reproduction, distribution, display and use of the presentation without

279

LED Watch: The Outlook for LEDs  

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

December 2014 LED Watch: The Outlook for LEDs James Brodrick, U.S. Department of Energy LD+A Magazine

280

Biomedical devices from ultraviolet LEDs  

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

Biomedical devices from ultraviolet LEDs Biomedical devices from ultraviolet LEDs Light-emitting nanocrystal diodes go ultraviolet Biomedical devices with active components could be made from nanostructured systems. February 24, 2012 Researcher working with nanocrystals A researcher at LANL works with nanocrystals. Get Expertise Researcher Sergio Brovelli Physical Chem & Applied Spectroscopy Email Research Team Leader Alberto Paleari University of Milano-Bicocca in Italy Such devices could, for example, selectively activate light-sensitive drugs for better medical treatment or probe for the presence of fluorescent markers in medical diagnostics. LEDs produce light in the ultraviolet range A process for creating glass-based, inorganic light-emitting diodes (LEDs) that produce light in the ultraviolet range has been developed by a

Note: This page contains sample records for the topic "led street light" 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

Synthesis and luminescence properties of rare earth activated phosphors for near UV-emitting LEDs for efficacious generation of white light  

E-Print Network (OSTI)

lighting using incandescent lights and fluorescent lamps, asenergy used for the incandescent lamp is wasted as infraredsource to replace incandescent and fluorescent lighting [2].

Han, Jinkyu

2013-01-01T23:59:59.000Z

282

WOOD STREET METERED LOT  

E-Print Network (OSTI)

LOT E1 LOT O WOOD STREET METERED LOT LOT W5 LOT C4 LOT B4 LOT L LOT M MARSHFIELDAVENUE PAULINASTREET Clinical Sciences Building UI Hospital Wood Street Station Clinical Sciences North Grand Grounds Garden

Dai, Yang

283

Vapochromic LED  

DOE Patents (OSTI)

A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (.mu..sub.max =545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal. The sensor comprises (a) a first electrode; (b) a hole transport layer formed on the first electrode; (c) a sensing/emitting layer formed on the hole transport layer, the sensing/emitting layer comprising a material that changes color upon exposure to the analyte vapors; (d) an electron conductor layer formed on the sensing layer; and (e) a second electrode formed on the electron conductor layer. The hole transport layer emits light at a shorter wavelength than the sensing/emitting layer and at least the first electrode comprises an optically transparent material.

Kunugi, Yoshihito (Hiroshima, JP); Mann, Kent R. (North Oaks, MN); Miller, Larry L. (Minnetonka, MN); Exstrom, Christopher L. (Kearney, NE)

2002-01-15T23:59:59.000Z

284

Vapochromic LED  

DOE Patents (OSTI)

A sandwich device was prepared by electrodeposition of an insoluble layer of oligomerized tris(4-(2-thienyl)phenyl)amine onto conducting indium-tin oxide coated glass, spin coating the stacked platinum compound, tetrakis(p-decylphenylisocyano)platinum tetranitroplatinate, from toluene onto the oligomer layer, and then coating the platinum complex with aluminum by vapor deposition. This device showed rectification of current and gave electroluminescence. The electroluminescence spectrum (.lambda..sub.max =545 nm) corresponded to the photoluminescence spectrum of the platinum complex. Exposure of the device to acetone vapor caused the electroemission to shift to 575 nm. Exposure to toluene vapor caused a return to the original spectrum. These results demonstrate a new type of sensor that reports the arrival of organic vapors with an electroluminescent signal. The sensor comprises (a) a first electrode; (b) a hole transport layer formed on the first electrode; (c) a sensing/emitting layer formed on the hole transport layer, the sensing/emitting layer comprising a material that changes color upon exposure to the analyte vapors; (d) an electron conductor layer formed on the sensing layer; and (e) a second electrode formed on the electron conductor layer. The hole transport layer emits light at a shorter wavelength than the sensing/emitting layer and at least the first electrode comprises an optically transparent material.

Kunugi, Yoshihito (Hiroshima, JP); Mann, Kent R. (North Oaks, MN); Miller, Larry L. (Minnetonka, MN); Exstrom, Christopher L. (Kearney, NE)

2003-06-17T23:59:59.000Z

285

Sandia National Laboratories: Blue LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

286

Sandia National Laboratories: Red LED  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

287

Sandia National Laboratories: white LED  

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

white LED Brief History of Solid-State Lighting Technology On June 5, 2013, in Semiconductor electroluminescence was first reported by H.J. Round in 1907, and the first...

288

Energy Savings Estimates of Light Emitting Diodes in Niche Lighting Applications  

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

Savings Estimates of Light Emitting Diodes Savings Estimates of Light Emitting Diodes in Niche Lighting Applications Prepared for: Building Technologies Program Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Prepared by: Navigant Consulting Inc. 1801 K Street, NW Suite 500 Washington DC, 20006 September 2008 * Department of Energy Washington, DC 20585 Energy Savings Estimates of Light Emitting Diodes in Niche Lighting Applications Released: September 2008 Revised: October 2008 This DOE report presents research findings for twelve different niche markets where LEDs are competing or poised to compete with traditional light sources (e.g., incandescent and fluorescent). Estimates of the energy saved due to current levels of LED market penetration as well as estimates of potential energy savings if these markets switched completely to LEDs

289

Mackey, KRM, RG Labiosa, M. Calhoun, JH Street, AF Post, A ...  

Science Journals Connector (OSTI)

Mike Calhoun and Joseph H. Street ..... slides were captured for visible light and ultraviolet ... For each pair, the left panel is a view under visible light and.

2007-02-06T23:59:59.000Z

290

I-95 traveling north or south Exit 47 to Route 34 west to Exit 1. Turn left onto Church Street South. 100 Church  

E-Print Network (OSTI)

two lights. At the third light, turn right onto Church St. South. 100 Church Street South. Pass hospital on your right and at the second light beyond York Street, turn right onto Church StreetI-95 traveling north or south Exit 47 to Route 34 west to Exit 1. Turn left onto Church Street

291

Dimming LEDs: What You Need to Know  

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

This December 10, 2012 webcast presented information on the challenges and opportunities facing users trying to dim LED light sources today, reviewing the major types of deployed dimming...

292

LED Replacements for Linear Fluorescent Lamps Webcast  

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

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...

293

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting...  

Office of Environmental Management (EM)

LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting LED LUMINAIRE LIFETIME: Recommendations for Testing and Reporting 2011 Solid-State Lighting Product Quality...

294

Light Bodies: Exploring Interactions with Responsive Lights  

E-Print Network (OSTI)

reinterpretation of street lighting. Before fixed infrastructure illuminated cities at night, people carried Urban street lighting today is a networked, fixed infrastructure that relies on the electrical grid. WeLight Bodies: Exploring Interactions with Responsive Lights Susanne Seitinger MIT Media Laboratory

Hunt, Galen

295

Contracting Around Hall Street  

E-Print Network (OSTI)

This Article examines the extent to which expanded court review of arbitration awards remains available after the Supreme Court’s decision in Hall Street Associates, L.L.C. v. Mattel, Inc. - that is, whether parties can contract around Hall Street...

Drahozal, Christopher R.

2010-01-01T23:59:59.000Z

296

Superieur lichtbereik dankzij dubbele LED module  

Science Journals Connector (OSTI)

GC Europe introduceert een nieuw concept voor lichtuitharding. De GC G-Light heeft een LED module met twee typen dioden. Met een...GC G-Light een hoge lichtopbrengst voor het uitharden van dental...

   

2005-08-01T23:59:59.000Z

297

Ningbo Liaoyuan Lighting Co | Open Energy Information  

Open Energy Info (EERE)

Liaoyuan Lighting Co Liaoyuan Lighting Co Jump to: navigation, search Name Ningbo Liaoyuan Lighting Co Place Yuyao, Zhejiang Province, China Zip 315408 Sector Solar, Wind energy Product Engaged in outdoor LED lighting manufacture and design including street lamps and solar/wind hybrid street lamps. Coordinates 30.047501°, 121.151222° 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":30.047501,"lon":121.151222,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

298

Lighting the Way for Big Energy Savings in Los Angeles | Department of  

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

Lighting the Way for Big Energy Savings in Los Angeles Lighting the Way for Big Energy Savings in Los Angeles Lighting the Way for Big Energy Savings in Los Angeles November 14, 2013 - 1:10pm Addthis A Los Angeles lighting project is saving the city $7 million a year in electricity costs. | Photo courtesy of Los Angeles Bureau of Street Lighting A Los Angeles lighting project is saving the city $7 million a year in electricity costs. | Photo courtesy of Los Angeles Bureau of Street Lighting Jim Brodrick Lighting Program Manager The world's largest light emitting diode (LED) conversion project to date is under way in Los Angeles, California. In the project's first phase alone, the city retrofitted over 141,000 streetlights, reducing energy use by 63% and saving the city $7 million a year in electricity costs. The project is expected to reduce carbon

299

EECBG Success Story: Small Nebraska Town Welcomes LEDs and Energy...  

Energy Savers (EERE)

LEDs and Energy Savings November 9, 2010 - 5:21pm Addthis Tecumseh is installing 95 new LED light fixtures throughout the town. | File photo Tecumseh is installing 95 new LED...

300

Electric, Street Railway, and Gas Corporations (South Dakota) | Department  

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

Electric, Street Railway, and Gas Corporations (South Dakota) Electric, Street Railway, and Gas Corporations (South Dakota) Electric, Street Railway, and Gas Corporations (South Dakota) < Back Eligibility Commercial Developer Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State South Dakota Program Type Line Extension Analysis Provider South Dakota Public Utilities Commission This legislation contains provisions pertaining to a corporation formed for the purpose of constructing, maintaining and operating a street railway or railways; generating, transmitting or distributing electricity to be sold to or used by the public for heat, light or power manufacturing; or producing, supplying, or transporting natural or artificial gas. The

Note: This page contains sample records for the topic "led street light" 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

Nassau Street Dark shading  

E-Print Network (OSTI)

Nassau Street Dark shading indicates shelving for oversize books E Emergency exit Men Women M C-18L C-19L C-19 M-2 C-19 M-1 JAN Library Web Computers Library Seminar Room Resource Sharing

Petta, Jason

302

Multicolor, High Efficiency, Nanotextured LEDs  

SciTech Connect

We report on research results in this project which synergize advanced material science approaches with fundamental optical physics concepts pertaining to light-matter interaction, with the goal of solving seminal problems for the development of very high performance light emitting diodes (LEDs) in the blue and green for Solid State Lighting applications. Accomplishments in the duration of the contract period include (i) heteroepitaxy of nitrogen-polar LEDs on sapphire, (ii) heteroepitaxy of semipolar (11{bar 2}2) green LEDs on sapphire, (iii) synthesis of quantum-dot loaded nanoporous GaN that emits white light without phosphor conversion, (iv) demonstration of the highest quality semipolar (11{bar 2}2) GaN on sapphire using orientation-controlled epitaxy, (v) synthesis of nanoscale GaN and InGaN medium, and (vi) development of a novel liftoff process for manufacturing GaN thin-film vertical LEDs. The body of results is presented in this report shows how a solid foundation has been laid, with several noticeable accomplishments, for innovative research, consistent with the stated milestones.

Jung Han; Arto Nurmikko

2011-09-30T23:59:59.000Z

303

LEDs_2LEDs_2 radiative recombination efficiency  

E-Print Network (OSTI)

· heterojunction band diagrams · current efficiency · extraction efficiency · wall-plug efficiency #12;2 Non. 8.1] #12;6 Materials for highMaterials for high--brightnessbrightness LEDsLEDsSecs. 8.1, 8.2.1 Why system Gas handling system Computer Control Reactor #12;8 Examples ofExamples of colourcolour

Pulfrey, David L.

304

New reversing design method for LED uniform illumination  

Science Journals Connector (OSTI)

In light-emitting diode (LED) applications, it is becoming a big issue that how to optimize light intensity distribution curve (LIDC) and design corresponding optical component to...

Wang, Kai; Wu, Dan; Qin, Zong; Chen, Fei; Luo, Xiaobing; Liu, Sheng

2011-01-01T23:59:59.000Z

305

First-time remote sensing of NO2 vertical distributions in an urban street canyon using Topographic Target Light scattering Differential Optical Absorption Spectroscopy (ToTaL-DOAS)  

Science Journals Connector (OSTI)

Topographic Target Light scattering Differential Optical Absorption Spectroscopy (ToTaL-DOAS) measurements were performed in a street canyon in Gwangju, Korea (35°10?51.43?N, 126°52?53.74?E) during a period of 10 days in October 2010. NO2 slant volume mixing ratios (VMRs) at the lowest elevation angle (EL) of 1°, as obtained from ToTaL-DOAS measurements, were validated via comparisons with collocated in situ ground data, showing good agreement within a scatter range of 20% during the entire measurement period, and within a scatter range of 15% when cloudy days were excluded. For the first time, based on inversion calculations using ToTaL-DOAS data, we retrieved NO2 vertical distributions that consist of five layers (from 6 to 118 m) for three measurement days. We obtained generally decreasing NO2 \\{VMRs\\} with altitude, whereas increased NO2 \\{VMRs\\} at two elevated layers (6–19 m and 19–33 m) were observed on 26 and 27 October. We obtained a coefficient of determination (R2) of 0.87 (0.61) between slant \\{VMRs\\} at 1° EL (retrieved NO2 \\{VMRs\\} in the layer from 6 m to 19 m) and in situ data, with the scatter of the correlation being within the 15% (10%) range. The relation between retrieved NO2 \\{VMRs\\} at 6–19 m and slant \\{VMRs\\} at 1° EL yielded an R2 value of 0.97, with the scatter of the correlation being within the 5% range. The results demonstrate that the ToTaL-DOAS technique is a useful tool in identifying the temporal and vertical characteristics of NO2 \\{VMRs\\} in an urban street canyon with a complex geometry.

Hanlim Lee; Myojeong Gu; Young J. Kim; Jungbae Hwang; Ukkyo Jung

2012-01-01T23:59:59.000Z

306

Microsoft PowerPoint - Pecan Street-Scott Hinson-Building America.pptx  

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

Pecan Street Inc. Pecan Street Inc. Scott Hinson shinson@pecanstreet.org Contents Pecan Street Background Pecan Street Research Initiatives Pike Powers Commercialization Laboratory Light Bulbs Pecan Street Background Information What is Pecan Street Who is Pecan Street Research Objectives and Initiatives Residential Home Energy Data Deepest residential energy available Enables research and application development not possible with "normal" data Granularity Comparison August 10, 2011: 60-minute Consumption Data (kW) August 10, 2011: 1-hour Consumption Data (kW) 0 4 8 12 04:00 08:00 12:00 16:00 20:00 Pecan Street Consortium Granularity Comparison August 10, 2011: 15-minute Consumption Data (kW 0 4 8 12 04:00 08:00 12:00 16:00 20:00 Pecan Street Consortium Granularity Comparison

307

Light Shines on Better Budget for Glendale, Arizona | Department of Energy  

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

Light Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona July 20, 2010 - 10:00am Addthis A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale Glendale, Ariz., like many other cities, was facing several problems: a tight budget and aging buildings using outdated lighting - making repairs difficult and expensive. The city installed energy-efficient LED lights in 190 signalized street intersections, at racquet ball and tennis courts at 11 city parks and in the Glendale Main Library. Glendale used part of its $2.3 million Energy Efficiency and Conservation Block Grant (EECBG) - funded by the American

308

Building a Reliable Measure for Unobtrusive Observations of Street-Connecting Pedestrian Walkways  

Science Journals Connector (OSTI)

There is evidence that good urban design, including street connectivity, facilitates walking for transport. We, ... g., concerning graffiti, litter, and insufficient lighting and signage). There is scope for...

Nick Wilson; Bill Brander; Osman D. Mansoor; Amber L. Pearson

2014-07-01T23:59:59.000Z

309

Light Old and New  

Science Journals Connector (OSTI)

The Sun, Moon and stars have been our lights since the earliest times. We have learned ... have much more recently filled our homes and streets with artificial lighting. We are, however, in danger of...natural lights

Bob Mizon

2002-01-01T23:59:59.000Z

310

Student led part Introduction  

E-Print Network (OSTI)

Overview Student led part Introduction Mathematical Biology ­ Matrix Population Projection Models;Overview Student led part Introduction The second lecture focuses on matrix (P)opulation (P)rojection (M)odels­ Stuart Townley Math Bio ­ Matrix PPMs 2/ 5 #12;Overview Student led part Introduction The second lecture

Knobloch,Jürgen

311

Location Name Street Number Street Name 9, 11 Brainerd Avenue  

E-Print Network (OSTI)

Avenue 49 Brainerd Avenue 55 A, B Brainerd Avenue Broad Street Books 45 Broad Street Parking Lot T CFA Drive Foss 6 - Nicolsen (Film House) 57 Foss Hill Drive Foss 7 - Nicolsen (French House) 57 Foss Hill

Royer, Dana

312

The Linden Street Project  

Somerville, MA Mostue & Associates, in collaboration with the Somerville Community Corporation and Landmark Structures Corporation, has completed the Linden Street Project, a 42-unit, energy-efficient affordable-housing development in Somerville, Massachusetts. Environmentally friendly design practices were used to achieve building comfort, energy efficiency, and the use of appropriate materials, and also to reclaim this urban enclave for community-oriented living.

313

City emergency "blue light" telephone (maintained by the city of Evanston)  

E-Print Network (OSTI)

Tennis Courts Tennis Courts City emergency "blue light" telephone (maintained by the city Football Center Byron S.Coon Sports Center ISABELLA STREET CENTRAL STREET ASHLANDAVENUE ASBURYAVENUE Gymnasium LINCOLN STREET COLFAX STREET DARTMOUTH PLACE NOYES STREET HAVEN STREET GARRETT PLACE LIBRARY PLACE

Reber, Paul J.

314

All inorganic colloidal quantum dot LEDs  

E-Print Network (OSTI)

This thesis presents the first colloidal quantum dot light emitting devices (QD-LEDs) with metal oxide charge transport layers. Colloidally synthesized quantum dots (QDs) have shown promise as the active material in ...

Wood, Vanessa Claire

2007-01-01T23:59:59.000Z

315

MC-CAM Research Topics Organic LEDs  

E-Print Network (OSTI)

MC-CAM Research Topics Organic LEDs Phosphors and materials for solid state lighting Battery materials with highly- controlled microstructures Next generation optical storage media Products based for advanced display technologies Mitsubishi Chemical Center for Advanced Materials MRL Building University

Bigelow, Stephen

316

LED Essentials- Technology, Applications, Advantages, Disadvantages  

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

On October 11, 2007, Kevin Dowling, VP of Innovation for Philips Solid-State Lighting Solutions, presented a broad introduction to LED technology, and discussed the technology status, advantages...

317

Photoacoustic Gas Detection with LED QEPAS  

Science Journals Connector (OSTI)

A novel approach of QEPAS (quartz-enhanced photoacoustic spectroscopy) applying low-cost LEDs as light sources in combination with the so-called off-beam technology is presented for...

Böttger, Stefan; Angelmahr, Martin; Schade, Wolfgang

318

LED Color Stability: 10 Important Questions  

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

This April 15, 2014 webinar examined the causes of color shift, and took a look at existing metrics used to describe color shift/color stability in LED lighting. The lumen maintenance lifetime of...

319

Solving the 'Green Gap' in LED Technology  

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

One long-standing high-priority research area for DOE is to increase the efficiency of deep green LEDs. Although most products today use phosphor conversion (PC) to produce white light from a blue LED, having a good green source could lead to color-mixed white sources that would avoid the losses associated with the PC approach.

320

West Bound I-90: Take Missoula's first exit onto Van Buren Street, turn left at the stop sign and merge into the right lane.  

E-Print Network (OSTI)

and merge into the right lane. 1. At the stop light, turn right onto Broadway Street. 2. Move down Arthur Street after the light. Watch the 25 mph speed limit. Turn left at the light on BeckwithWest Bound I-90: Take Missoula's first exit onto Van Buren Street, turn left at the stop sign

Vonessen, Nikolaus

Note: This page contains sample records for the topic "led street light" 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

We describe the characteristics and application of a 265nm AlGaN light-emitting diode (LED) operated at 1 MHz repetition rate, 1.2 ns pulse duration, 1.32 W average power, 2.3 mW peak  

E-Print Network (OSTI)

We describe the characteristics and application of a 265nm AlGaN light-emitting diode (LEDnm bandwidth. The LED enables the fluorescence decay of weakly emitting phenylalanine to be measured and resonance energy transfer from phenylalanine to tyrosine and tryptophan, the convenience of the 265nm LED

Strathclyde, University of

322

Integrated LED Headlamp Module  

Science Journals Connector (OSTI)

LED headlamp module integrates all necessary optics, electronics, and heat management into one compact unit that fits into standard mechanical headlamp frame. It provides high beam,...

Popelek, Jan

323

Study: Environmental Benefits of LEDs Greater Than CFLs | Department of  

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

Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs December 9, 2013 - 4:13pm Addthis A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic Jim Brodrick Lighting Program Manager MORE RESOURCES Find out how LED lighting works Get project planning and analysis tools Subscribe to Solid-State Lighting's email distribution list Increasingly, light emitting diode (LED) screw-based lamps are providing consumers a cost-effective and energy efficient alternative to compact

324

Study: Environmental Benefits of LEDs Greater Than CFLs | Department of  

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

Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs Study: Environmental Benefits of LEDs Greater Than CFLs December 9, 2013 - 4:13pm Addthis A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic A three-part Energy Department-funded study indicates LEDs are more environmentally friendly than compact fluorescent and incandescent lights. | Energy Department graphic Jim Brodrick Lighting Program Manager MORE RESOURCES Find out how LED lighting works Get project planning and analysis tools Subscribe to Solid-State Lighting's email distribution list Increasingly, light emitting diode (LED) screw-based lamps are providing consumers a cost-effective and energy efficient alternative to compact

325

Text-Alternative Version: Challenges in LED Research and Development  

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

Narrator: LEDs have made remarkable progress in the past decade and gained a strong foothold in the US marketplace. In 2012, LED lighting saved an estimated 71 trillion BTUs, equivalent to annual...

326

A model for LED spectra at different drive currents  

Science Journals Connector (OSTI)

A mathematical model for the spectra of monocolor light-emitting diodes (LEDs) and phosphor-coated white LEDs at different drive currents is established. The simulation program of the...

He, Guoxin; Zheng, Lihong

2010-01-01T23:59:59.000Z

327

Model Specification for LED Roadway Luminaires, V2.0  

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

Version 2.0 of the Model Specification for LED Roadway Luminaires is now available. Changes are substantial and include streamlined structure and formatting, new diagrams, updated references, and leveraging of LED Lighting Facts® program guidance.

328

Building highly efficient LEDs in the yellow-green spectrum  

SciTech Connect

Argonne and Purdue researchers are peering deep into the atomic structure and composition of LED lights in order to build highly efficient LEDs in the yellow-green spectrum.

None

2012-01-01T23:59:59.000Z

329

Thermal optimization of high power LED arrays with a fin cooling system  

Science Journals Connector (OSTI)

In this paper, we describe an optimization process of thermal design for the light lamp which utilizes the Light Emitting Diode (LED) module as a lighting source. The thermal performance of the LED module was sho...

Sun Ho Jang; Moo Whan Shin

2011-10-01T23:59:59.000Z

330

Embodied Energy and Off-Grid Lighting  

E-Print Network (OSTI)

solar and wind energy systems. 7 If anticipated improvements in LED lighting system performance (Lighting Africa,

Alstone, Peter

2012-01-01T23:59:59.000Z

331

LEd:JCD  

Office of Legacy Management (LM)

LEd:JCD TO- 54 k-sour R3scsrck Fouadatlon 0f..&+0istlstituta of TecGJlow Tecmolocy Csilter 10 Zest 35th Stmet ', cxk3go lo, I3.Umie Atteqtion: MC. R. c. Barrall Gentlemen:...

332

Do Embedded Roadway Lights Protect Sea Turtles? LESLEY BERTOLOTTI  

E-Print Network (OSTI)

Glades Road Boca Raton, Florida 33431, USA ABSTRACT / Street lighting on coastal roadways is often, turtles showed poor orientation when street lighting was on. Measurements confirmed that street lightingDo Embedded Roadway Lights Protect Sea Turtles? LESLEY BERTOLOTTI Broward County Department

Milton, Sarah

333

LED / Lighting Ultrafast Submicron Thermoreflectance Imaging  

E-Print Network (OSTI)

This Both the miniaturization of electronic and optoelectronic devices and circuits and the increased. For optoelectronic devices, an additional scheme is required to separate electro-luminescence and the reflected

334

Solid-State Lighting: Text-Alternative Version: Municipal Solid-State  

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

Municipal Solid-State Street Lighting Consortium Kickoff to someone by Municipal Solid-State Street Lighting Consortium Kickoff to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on Google Bookmark Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on Delicious Rank Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on Digg Find More places to share Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Kickoff on

335

Dimmable AC LED Driver With Efficiency Improved Based on Switched LED Module  

Science Journals Connector (OSTI)

In this paper, one AC light-emitting diode (LED) driver with high power factor (PF) and low total harmonic distortion (THD) is adopted, which is added with the proposed...

Hwu, K I; Tu, W C; Fang, Y T

2014-01-01T23:59:59.000Z

336

Excellent color rendering indexes of multi-package white LEDs  

Science Journals Connector (OSTI)

This study introduces multi-package white light-emitting diodes (LEDs) system with the ability to realize high luminous efficacy and an excellent color rendering index (CRI,...

Oh, Ji Hye; Yang, Su Ji; Sung, Yeon-Goog; Do, Y R

2012-01-01T23:59:59.000Z

337

Max Tech and Beyond: Maximizing Appliance and Equipment Efficiency by Design  

E-Print Network (OSTI)

Heaters Low-end Servers Street Lights Comm. Storage WaterWater Heaters (gas) Street Lights Low-end Servers Res. Gaseffectiveness of LED street lights. LED street lights offer

Desroches, Louis-Benoit

2012-01-01T23:59:59.000Z

338

200 N. Spring Street  

Office of Legacy Management (LM)

Dipartment of Energy. ,' Dipartment of Energy. ,' Washington,DC20585 ., .\ FEB 1 7 ' 19g5' ,The Honorable Richa,rd. Riordon .', 200 N. Spring Street 'Los Angeles, California ,90012 '~ Dear Mayor Riordon: " Secretary of Energy Hazel O'Leary'has announced a neb approach to openness ins- the Department of Energy (DOE) and its communications with the public. fin support of this initiative, we are pleased~ to forward the enclosed information related to the. former Shannon Luminous Metals site in your jurisdiction that pe.rformed work for DOE's'predecessor agencies.' .This'information is provided foryour information, use! and,retention.~' "I , DOE's Formerly.Utilized Sites Remedial Action Program (FUSRAP) is responsible for identification of, sites used by DOE's predecessor agencies, determining

339

LED MR16 Lamps  

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

The following CALiPER report provides detailed analysis of LED MR16 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on performance attributes that are not captured by LM-79 testing. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

340

EECBG Success Story: LEDs Ready for Takeoff at Louisiana Airport  

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

About 250 lights along the taxiway at Hammond Northshore Regional Airport in Louisiana are being replaced with light-emitting diodes (LEDs) with funds from an Energy Efficiency and Conservation Block Grant (EECBG). Learn more.

Note: This page contains sample records for the topic "led street light" 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

LED PAR38 Lamps  

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

The following CALiPER reports provide detailed analysis of LED PAR38 lamp performance, covering basic performance characteristics as well as subjective evaluation of beam, shadow, and color quality. Pending reports will offer analysis on flicker, dimming and power quality characteristics; stress testing; and lumen and chromaticity maintenance. These reports are intended to educate the industry on market trends, potential issues, and important areas for improvement.

342

LED Price Tracking Form  

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

DOE intends to update the SSL Pricing and Efficacy Trend Analysis for Utility Program Planning report on an annual basis, but doing so requires that we have sufficient product and purchase data including acquisition date, purchase price, product category, and rated initial lumens. Those interested in helping collect this data are asked to use the LED Price Tracking FormMicrosoft Excel and follow the instructions for submitting data.

343

Successful streets : performance measures, community engagement, and urban street design  

E-Print Network (OSTI)

Over the past decade, local transportation agencies have increasingly re-designed urban arterials, their cities' major surface streets, to better accommodate a wide range of users. At the same time, a growing number of ...

Steinemann, Jeremy R

2012-01-01T23:59:59.000Z

344

Wisconsin LED Plant Benefits from Recovery Act | Department of Energy  

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

Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act April 1, 2010 - 6:58pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this mean for me? LED lights emit more light, have a longer life and provide anywhere from 50 to 70 percent in energy savings. Rudd Lighting has seen a boost from cities tapping Recovery Act funds and seeking energy efficient lighting that will reduce costs. The BetalLED facility, which produced hundreds of thousands of LED products last year, employs about 600 people, and for every job in the plant, eight to 10 more are created outside the company. Workers at a Racine, Wis., manufacturing company are busy filling orders for American cities seeking to brighten their communities with energy

345

Wisconsin LED Plant Benefits from Recovery Act | Department of Energy  

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

Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act Wisconsin LED Plant Benefits from Recovery Act April 1, 2010 - 6:58pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this mean for me? LED lights emit more light, have a longer life and provide anywhere from 50 to 70 percent in energy savings. Rudd Lighting has seen a boost from cities tapping Recovery Act funds and seeking energy efficient lighting that will reduce costs. The BetalLED facility, which produced hundreds of thousands of LED products last year, employs about 600 people, and for every job in the plant, eight to 10 more are created outside the company. Workers at a Racine, Wis., manufacturing company are busy filling orders for American cities seeking to brighten their communities with energy

346

SunLed Technologies | Open Energy Information  

Open Energy Info (EERE)

SunLed Technologies SunLed Technologies Jump to: navigation, search Name SunLed Technologies Place Hyderabad, Andhra Pradesh, India Zip 500 034 Sector Solar Product Hyderabad-based end-to-end energy efficient lighting solution provider and ESCO focused on LEDs and solar power. Coordinates 17.6726°, 77.5971° 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":17.6726,"lon":77.5971,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

347

100 LPW 800 Lm Warm White LED  

SciTech Connect

An illumination grade warm white (WW) LED, having correlated color temperature (CCT) between 2800 K and 3500K and capable of producing 800 lm output at 100 lm/W, has been developed in this program. The high power WW LED is an ideal source for use as replacement for incandescent, and Halogen reflector and general purpose lamps of similar lumen value. Over the two year period, we have made following accomplishments: developed a high power warm white LED product and made over 50% improvements in light output and efficacy. The new high power WW LED product is a die on ceramic surface mountable LED package. It has four 1x1 mm{sup 2} InGaN pump dice flip chip attached to a ceramic submount in 2x2 array, covered by warm white phosphor ceramic platelets called Lumiramicâ?¢ and an overmolded silicone lens encapsulating the LED array. The performance goal was achieved through breakthroughs in following key areas: (1) High efficiency pump LED development through pump LED active region design and epi growth quality improvement (funded by internal programs). (2) Increase in injection efficiency (IE) represented by reduction in forward voltage (V{sub f}) through the improvement of the silver-based p-contact and a reduction in spreading resistance. The injection efficiency was increased from 80% at the start of the program to 96% at the end of the program at 700 mA/mm{sup 2}. (3) Improvement in thermal design as represented by reduction in thermal resistance from junction to case, through improvement of the die to submount connection in the thin film flip chip (TFFC) LED and choosing the submount material of high thermal conductivity. A thermal resistance of 1.72 K/W was demonstrated for the high power LED package. (4) Improvement in extraction efficiency from the LED package through improvement of InGaN die level and package level optical extraction efficiency improvement. (5) Improvement in phosphor system efficiency by improving the lumen equivalent (LE) and phosphor package efficiency (PPE) through improvement in phosphor-package interactions. Another achievement in the development of the phosphor integration technology is the demonstration of tight color control. The high power WW LED product developed has been proven to have good reliability. The manufacturing of the product will be done in Philips Lumiledsâ?? LUXEON Rebel production line which has produced billions of high power LEDs. The first high power WW LED product will be released to the market in 2011.

Decai Sun

2010-10-31T23:59:59.000Z

348

Lighting  

SciTech Connect

The lighting section of ASHRAE standard 90.1 is discussed. It applies to all new buildings except low-rise residential, while excluding specialty lighting applications such as signage, art exhibits, theatrical productions, medical and dental tasks, and others. In addition, lighting for indoor plant growth is excluded if designed to operate only between 10 p.m. and 6 a.m. Lighting allowances for the interior of a building are determined by the use of the system performance path unless the space functions are not fully known, such as during the initial stages of design or for speculative buildings. In such cases, the prescriptive path is available. Lighting allowances for the exterior of all buildings are determined by a table of unit power allowances. A new addition the exterior lighting procedure is the inclusion of facade lighting. However, it is no longer possible to trade-off power allotted for the exterior with the interior of a building or vice versa. A significant change is the new emphasis on lighting controls.

McKay, H.N. (Hayden McKay Lighting Design, New York, NY (US))

1990-02-01T23:59:59.000Z

349

Embodied Energy and Off-Grid Lighting  

E-Print Network (OSTI)

Solar LED Task Light Embodied Energy We estimated theTable 1: Embodied energy in LED task lights and chargingLED lights that we evaluated, indicating that the energy

Alstone, Peter

2012-01-01T23:59:59.000Z

350

LEDs Ready for Takeoff at Louisiana Airport | Department of Energy  

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

LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport July 14, 2010 - 3:34pm Addthis Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? Upgrades for safety, energy at Hammond airport possible through Recovery Act Taxiway lights to be replaced with LEDs Airport could save up to $15,000 annually on electric bills Energy efficiency is taking off at the airport in Hammond, La., about 70

351

LEDs Ready for Takeoff at Louisiana Airport | Department of Energy  

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

LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport LEDs Ready for Takeoff at Louisiana Airport July 14, 2010 - 3:34pm Addthis Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Hammond, La., airport is replacing the existing incandescent taxiway lights (pictured) with LEDs. | Photo courtesy of Hammond Northshore Regional Airport Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? Upgrades for safety, energy at Hammond airport possible through Recovery Act Taxiway lights to be replaced with LEDs Airport could save up to $15,000 annually on electric bills Energy efficiency is taking off at the airport in Hammond, La., about 70

352

Cree Sets New Benchmarks for LED Efficacy and Brightness  

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

Cree has successfully created a cool white LED prototype that delivers 107 lm/W at 350mA. This achievement builds on the Cree EZBright® LED chip platform, developed in part with prior funding support from DOE. Cree made the prototype LED under their DOE project focused on developing LED chips incorporating photonic crystal elements for improved light extraction and novel package technology for higher down-conversion efficiency compared to conventional LEDs. Based on a 1 millimeter-square chip, the new prototype LED produces white light with a CCT of 5500K and a CRI of 73. Integration of four of these prototype LEDs can produce luminous flux of more than 450 lumens.

353

Novel green illumination energy for LED with ocean battery materials  

Science Journals Connector (OSTI)

This paper launches novel materials of LED with ocean battery. Ocean battery employs sea water existing by the nature as energy materials to drive LED lamp lighting. The analysing methods are thermal-, electric- and illumination-performance experiments to discuss the novel green illumination techniques. Ocean battery and LED are all DC components, there is no energy loss of current converter between them, and the ocean battery has more electricity in LED illumination. Vapour chamber (VC) and aluminium (AL) materials are assigned to be the LED PCBs. Results show that the effective thermal conductivity of the VCPCB is many times higher than that of the ALPCB, proving that it can effectively reduce the temperature of the LED and obtain more uniform luminance. And the output voltage and LED lighting start unstable resulting from the air bubble of ocean battery slight vibration.

Jung-Chang Wang

2012-01-01T23:59:59.000Z

354

Advanced Lighting Program Development (BG9702800) Final Report  

E-Print Network (OSTI)

LEDs (especially traffic light conversion) Commercial Better task and furniture-based lighting Improved streetlights

Rubinstein, Francis; Johnson, Steve

1998-01-01T23:59:59.000Z

355

Power Quality Improvements in Lighting Systems Mr. Ashish Shrivastava  

E-Print Network (OSTI)

from early incandescent lamps to present generation light emitting diodes (LEDs). Incandescent light

Kumar, M. Jagadesh

356

Solid-State Lighting | Department of Energy  

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

U.S. Manufacturing. Read more Technical Brief Clarifies Misconceptions about Safety of LED Lighting Technical Brief Clarifies Misconceptions about Safety of LED Lighting Examines...

357

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

358

19CHALLENGE Summer 2006 OUTDOOR LIGHTING, INSECTS & BIRDS  

E-Print Network (OSTI)

-whocomplainofthevisualintrusion causedbysecuritylightsandinsensitivestreetlighting. It is common knowledge that street and security lights attract insects: indeed, 2000-watt light that the increasing numbers of urban street and security lights must have a measurable impact on the environment19CHALLENGE Summer 2006 OUTDOOR LIGHTING, INSECTS & BIRDS Is light pollution killing our birds

359

Do Embedded Roadway Lights Protect Sea Turtles?  

Science Journals Connector (OSTI)

Street lighting on coastal roadways is often visible at ... Our objective was to determine whether an alternative lighting system (light-emitting diodes, embedded in the roadway pavement ... the beach oriented no...

Lesley Bertolotti; Michael Salmon

2005-11-01T23:59:59.000Z

360

Procedure for simulating divergent-light halos  

Science Journals Connector (OSTI)

Divergent-light halos are halos produced by light from nearby light sources, like street lamps being scattered by small crystals of ice floating in the air. The use of “brute-force”...

Gislén, Lars

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Simple Modular LED Cost Model  

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

The LED Cost Model, developed by the DOE Cost Modeling Working Group, provides a simplified method for analyzing the manufacturing costs of an LED package. The model focuses on the major cost...

362

Using Computation to Enhance LEDs  

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

done at NERSC suggest that nanostructures half the breadth of a DNA strand could improve LED efficiency, especially in the "green gap," a portion of the spectrum where LED...

363

An Brief Overview Of Using LEDs In Lab  

E-Print Network (OSTI)

Diodes · A Light-Emitting Diode (LED) is a special type of diode that emits photons (light) when current ­ Forward biased Diode Operation 0 V 5 V Current ~0 high (too high)5 V 0 V I anode cathode #12;3 Light-Emitting

Baas, Bevan

364

Direct LED writing of submicron resist patterns: Towards the fabrication of individually-addressable InGaN submicron stripe-shaped LED arrays  

Science Journals Connector (OSTI)

Submicron stripe-shaped InGaN light-emitting diode (LED) arrays with individually addressable capabilities are demonstrated ... the emission pattern, are formed by direct LED writing in a mask-free manner. The .....

Zheng Gong; Benoit Guilhabert; Zhitao Chen; Martin D. Dawson

2014-09-01T23:59:59.000Z

365

South Columbia Street (Main Hospital)  

E-Print Network (OSTI)

W est N ew Mason Farm R oad di M anning Drive Drive Deck Cardinal Hospital NC Neuro- Infirmary NC 2 East Wing Patient Support Wing Parking Dogwood Deck UNC HOSPITALS Children's NC Memorial NC Women's cal South Columbia Street wood Dri Pit D rive Drive West ve (Main Hospital) Old Tarrson Brauer Dental

Whitton, Mary C.

366

South Columbia Street (Main Hospital)  

E-Print Network (OSTI)

W est N ew Mason Farm R oad di M anning Drive Drive Deck Cardinal Hospital NC Neuro- Infirmary NC 2 Wing Patient Support Wing Parking Dogwood Deck UNC HOSPITALS Children's NC Memorial NC Women's cal South Columbia Street wood Dri Pit D rive Drive West ve (Main Hospital) Old Brauer Tarrson Koury Oral

Doyle, Martin

367

South Columbia Street (Main Hospital)  

E-Print Network (OSTI)

W est New Mason Farm Road M anning Drive Drive Deck Cardinal Hospital NC Neuro- Infirmary NC 2nd Wing Patient Support Wing Parking Dogwood Deck UNC HOSPITALS Children's NC Memorial NC Women's cal South Columbia Street wood Dri P Drive Drive West ve (Main Hospital) Old Tarrson Brauer Dental Research

Whitton, Mary C.

368

Incorporating video into Google Mobile Street View  

E-Print Network (OSTI)

Mobile Street View is a compelling application but suffers from significant latency problems, especially in limited bandwidth circumstances. Currently, the application uses static images to display street level information. ...

Wright, Christina (Christina E.)

2010-01-01T23:59:59.000Z

369

TRUE COLORS: LEDS AND THE RELATIONSHIP BETWEEN CCT, CRI, OPTICAL SAFETY, MATERIAL DEGRADATION, AND PHOTOBIOLOGICAL STIMULATION  

SciTech Connect

This document analyzes the optical, material, and photobiological hazards of LED light sources compared to conventional light sources. It documents that LEDs generally produce the same amount of blue light, which is the primary contributor to the risks, as other sources at the same CCT. Duv may have some effect on the amount of blue light, but CRI does not.

Royer, Michael P.

2014-08-30T23:59:59.000Z

370

DUAL USE OF LEDS: SIGNALING AND COMMUNICATIONS IN ITS Grantham Pang, Chi-ho Chan, Hugh Liu, Thomas Kwan  

E-Print Network (OSTI)

of light-emitting diodes (LEDs) over incandescent lights is well-supported. This is due to their high shown that the high brightness LEDs are significantly brighter than the incandescent lights lights with LEDs is a reduction in power consumption [7]. In addition, incandescent traffic signals burn

Pang, Grantham

371

Phosphors for LED lamps  

SciTech Connect

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

372

Sandia National Laboratories: AlGaAs LEDs  

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

electroluminescence was first reported by H.J. Round in 1907, and the first light-emitting diode (LED) was reported by O.V. Losev in 1927. Not until the birth of semiconductor...

373

Laboratory Evaluation of LED T8 Replacement Lamp Products  

SciTech Connect

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

374

Better than CFL? Dimmable LED Downlights in Hospitality Facilities Webinar  

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

LEDs represent less than 1% of the installed base of U.S. downlights, which in 2012 numbered about 700 million. In hospitality facilities, past efforts to reduce lighting energy use have mainly...

375

OxfordRoadOxfordRoadOxfordRoad UpperBrookStreetUpperBrookStreet  

E-Print Network (OSTI)

West Whitworth Street Fairfield Street Charles Street Charles St Altrincham Street Mancunian Way St OXFORD RD STATION OXFORD RD STATION PICCADILLY TRAIN STATION AND METROLINK BBC CITY CENTRE, Platt Church of England 47. Platt Fields Park, open space with a lake. 48. Allen Hall 49. The Islah

376

Small Nebraska Town Welcomes LEDs and Energy Savings | Department of Energy  

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

Nebraska Town Welcomes LEDs and Energy Savings Nebraska Town Welcomes LEDs and Energy Savings Small Nebraska Town Welcomes LEDs and Energy Savings November 9, 2010 - 2:00pm Addthis Tecumseh is installing 95 new LED light fixtures throughout the town. | File photo Tecumseh is installing 95 new LED light fixtures throughout the town. | File photo Lindsay Gsell What are the key facts? Rural Tecumseh, Neb. could save up to $6,000 annually with LED lights Tecumseh's town historic town square is home to the city hall, courthouse, post office, and during the summer months-a farmers market. Now, this historic square, built in the 1850's, is about to become home to something new: LED lights. As part of an Energy Efficiency and Conservation Block Grant through the Recovery Act, Tecumseh is planning to install 95 new LED light fixtures

377

Bored By Non-Glowing Skin? Ultra-Flexible, Waterproof LED Implants Are What You Seek  

E-Print Network (OSTI)

Bored By Non-Glowing Skin? Ultra-Flexible, Waterproof LED Implants Are What You Seek By Alasdair Wilkins/io9 Posted 10.19.2010 at 12:15 pm LED Lights Could Be Implanted Under Skin Photo courtesy of iO9 LEDs are, on small scales, the cheapest, most reliable, and most technologically powerful light sources

Rogers, John A.

378

Modeling of dimmable High Power LED illumination distribution using ANFIS on the isolated area  

Science Journals Connector (OSTI)

High power light emitting diodes (HP-LEDs) are more suitable for energy saving applications and have becoming replacing traditional fluorescent and incandescent bulbs for its energy efficient. Therefore, HP-LED lighting has been regarded in the next-generation ... Keywords: ANFIS, High Power LED, Illumination distribution

?smail Kiyak; Vedat Topuz; Bülent Oral

2011-09-01T23:59:59.000Z

379

LEDs and Specification for Parking Lots Lighten Energy Load | Department of  

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

LEDs and Specification for Parking Lots Lighten Energy Load LEDs and Specification for Parking Lots Lighten Energy Load LEDs and Specification for Parking Lots Lighten Energy Load March 5, 2013 - 11:17am Addthis At its Supercenter in Leavenworth, Kansas—the first site to implement the LED Site Lighting Specification—Walmart anticipates energy savings of over 125,000 kWh per year and a 30% reduction in maintenance costs. In addition to parking lot lights, LED bollard lights illuminate the pedestrian walkway. Credit: Walmart At its Supercenter in Leavenworth, Kansas-the first site to implement the LED Site Lighting Specification-Walmart anticipates energy savings of over 125,000 kWh per year and a 30% reduction in maintenance costs. In addition to parking lot lights, LED bollard lights illuminate the

380

Light  

Science Journals Connector (OSTI)

Sunlight contains energy which can be directly converted into electricity in solar cells of various types. This is an example of what is called 'direct conversion', involving no moving parts or heat conversion processes. This chapter looks at photovoltaic and photoelectric devices and also at other ideas for using light energy, some of which operate in the infrared part of the spectrum. Solar electric power is a rapidly developing field, opening up many opportunities for novel applications, as well as requirements, including for storage, with one idea being solar-powered hydrogen production and then direct conversion to electricity in fuel cells. Direct conversion is not always efficient, and this chapter introduces the concept of 'energy return on energy invested'. In speculative mood this chapter also looks at the idea of a global grid, allowing daytime solar generation to be used on the night side of the planet.

David Elliott ? Pages 4-1 to 4-20

Note: This page contains sample records for the topic "led street light" 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

Microscopy refocusing and dark-field imaging by using a simple LED array  

E-Print Network (OSTI)

Microscopy refocusing and dark-field imaging by using a simple LED array Guoan Zheng,1 show that such a condenser can be replaced by a programmable LED array to achieve greater imaging], and nondiffracted Bessel beam illumination [6]. With the maturation of LED technology, the use of LEDs as the light

Yang, Changhuei

382

Highly Efficient Silicon Light Emitting Diode  

E-Print Network (OSTI)

silicon light-emitting diodes (LED) that efficiently emit photons with energy around the silicon bandgap

Leminh Holleman Wallinga; P. Leminh; J. Holleman; H. Wallinga

2000-01-01T23:59:59.000Z

383

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

384

Lighting | Department of Energy  

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

to installing LEDs in existing fixtures. Tips and Advice Tips: Lighting Lighting choices save you money. Energy-efficient light bulbs are available in a wide variety of sizes...

385

LED structure with enhanced mirror reflectivity  

DOE Patents (OSTI)

Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

Bergmann, Michael; Donofrio, Matthew; Heikman, Sten; Schneider, Kevin S; Haberern, Kevin W; Edmond, John A

2014-04-01T23:59:59.000Z

386

An Investigation into the Perception of Color under LED White Composite Spectra with Modulated Color Rendering  

E-Print Network (OSTI)

emitting diodes, LEDs. We examined seven LED white composite spectra with different color rendering of a pilot study that evaluates the perceptual impact of modulation of color rendering using multi-chip light

O'Reilly, Una-May

387

DOE Publishes CALiPER Snapshot Report on LED A Lamps  

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

DOE's CALiPER program has released a Snapshot Report on LED A lamps, which utilizes the LED Lighting Facts program's extensive product database to help industry stakeholders understand the current state and trajectory of the market for that class

388

LED Frequently Asked Questions | Department of Energy  

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

Frequently Asked Questions LED Frequently Asked Questions This document provides answers to LED frequently asked questions for plant-wide improvements, such as "Are LEDs ready for...

389

Energy Efficiency of LEDs | Department of Energy  

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

of LEDs Energy Efficiency of LEDs This fact sheet discusses the current state of the LED market and discusses package efficacy, luminaire efficacy, and application efficacy....

390

Sandia National Laboratories: (Lighting and) Solid-State Lighting...  

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

on the third and upcoming revolution (illumination). Topics cover the basics of light-emitting diode (LED) operation; a 200-year history of lighting technology; the importance of...

391

Abstract P4-17-06: The use of specialist nurse-led clinics in preparation for reconstructive breast surgery.  

Science Journals Connector (OSTI)

...4138: Fluorescence laparoscopy with an LED light source enables fluorescence-guided...495-nm emission filter and a Stryker L9000 LED light source 24 hours after tail vein injection...Bouvet. Fluorescence laparoscopy with an LED light source enables fluorescence-guided...

AM Affan; RA Ali; JA Morton-Gittens; A Perry; A Harry; JM O'Donoghue; R Rampaul

2012-12-15T23:59:59.000Z

392

Lighting Systems  

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

Purple LED lamp Purple LED lamp Lighting Systems Lighting research is aimed at improving the energy efficiency of lighting systems in buildings and homes across the nation. The goal is to reduce lighting energy consumption by 50% over twenty years by improving the efficiency of light sources, and controlling and delivering illumination so that it is available, where and when needed, and at the required intensity. Research falls into four main areas: Sources and Ballasts, Light Distribution Systems, Controls and Communications, and Human Factors. Contacts Francis Rubinstein FMRubinstein@lbl.gov (510) 486-4096 Links Lighting Research Group Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends

393

Maintenance Practices for LED Streetlights  

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

This April 14, 2014 webinar answered important questions about the maintenance and reliability of LED streetlights, and how to take these issues into account when planning and preparing for a...

394

Advanced Lighting Systems | Open Energy Information  

Open Energy Info (EERE)

Minnesota Zip: 56378 Product: Advanced Lighting Systems (ALS) provides a number of LED and fiber optic lighting solutions. It was acquired by Nexxus Lighting in September...

395

Arterial-street signal timing strategies to provide additional through-traffic capacity during freeway incident conditions  

E-Print Network (OSTI)

the total number of stops for coordinated multiple phase traffic signal systems (Chang and Messer 1991, "Traffic Light" 1990). Modifications were made to the Akcelik and Miller formula to account for the platoon arrival patterns that result from arterial-street... the total number of stops for coordinated multiple phase traffic signal systems (Chang and Messer 1991, "Traffic Light" 1990). Modifications were made to the Akcelik and Miller formula to account for the platoon arrival patterns that result from arterial-street...

Dale, James Joseph

2012-06-07T23:59:59.000Z

396

Surface-Roughened Light-Emitting Diodes: An Accurate Model  

Science Journals Connector (OSTI)

Surface roughening is frequently employed to increase light extraction from light-emitting diodes (LEDs), especially in the important case of III-Nitride LEDs. We ...

David, Aurelien

2013-01-01T23:59:59.000Z

397

Performance Comparison of Bottom and Top Emitting LWIR (8 ?m) LED Devices  

Science Journals Connector (OSTI)

For similar substrate thickness, flip-chip mount bottom emitting LWIR LED device has higher light intensity than top emitting device. Enhanced emission is attributed to better cooling...

Das, Naresh C; Chang, Wayne

398

10 Mbps Ethernet Access for Indoor Personal Local Area Network based on a Phosphorescent White LED  

Science Journals Connector (OSTI)

This paper reports a visible light communication application system realizing 10 Mbps Ethernet access for indoor personal area network based on a phosphorescent white LED, operating...

Li, Honglei; Chen, Xiongbin; Tang, Danying; Chen, Hongda

399

Outdoor Solid-State Lighting Technology Deployment | Department...  

Energy Savers (EERE)

Parking Lot Lighting FEMP Acquisition Guidance for Lighting Products (Powered by LED Lighting Facts) FEMP Outdoor Solid-State Lighting Initiative: Resources for Outdoor SSL...

400

C dynamics in benthic algae: Effects of light, phosphorus  

Science Journals Connector (OSTI)

Illinois Natural History Survey, 1816 S. Oak Street, Champaign, Illinois 61820 ... conditions of high light and high phosphorus had d13C values that were 16% ...

2008-06-04T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

ACKLESON, STEVEN G. Light in shallow waters: A brief research ...  

Science Journals Connector (OSTI)

Office of Naval Research, 800 N. Quincy Street, Arlington, Virginia 22043 ... ecosystems, such as coral reefs or seagrasses, the in-water light field is often ...

2003-01-02T23:59:59.000Z

402

LED lamp color control system and method  

SciTech Connect

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

403

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

404

South Parking Garage SAN SALVADOR STREET  

E-Print Network (OSTI)

FOB YUH SPXC SPXE West Parking Garage DH South Parking Garage UPD MQH SH SAN SALVADOR STREET SAN Salvador Street · Once you enter, if you are Disabled, proceed to park in the Disabled parking area Salvador St. · Proceed to the West Garage (4th St.) entrance on right hand side · Once you enter, if you

Su, Xiao

405

Locally Led Conservation The Local Work Group  

E-Print Network (OSTI)

1 Locally Led Conservation & The Local Work Group Mark Habiger NRCS #12;2 What Is "Locally Led ­ 5. Implementing solutions ­ 6. Measuring their success #12;3 The Locally Led Principle Locally led-Economic Concerns · Program Identification · Stakeholder Commitment #12;6 Who Leads the Locally Led Effort? · Local

406

Environmental factors which may have led to the appearance of colour vision  

Science Journals Connector (OSTI)

...Marshall Environmental factors which may have led to the appearance of colour vision Vadim...evolution| Environmental factors which may have led to the appearance of colour vision. | It...Light Environmental factors which may have led to the appearance of colour vision Vadim...

2000-01-01T23:59:59.000Z

407

Sensors and Actuators B 111112 (2005) 230241 Improvements in LED-based fluorescence analysis systems  

E-Print Network (OSTI)

Sensors and Actuators B 111­112 (2005) 230­241 Improvements in LED-based fluorescence analysis the stability, power output, and spectral flexibility of light emitting diode (LED)-based systems used to excite fluorescence or other forms of luminescence. LEDs are an attractive alternative to conventional white

Wilson, Denise

408

IEEE SIGNAL PROCESSING LETTERS, VOL. 18, NO. 10, OCTOBER 2011 587 Compressed LED Illumination Sensing  

E-Print Network (OSTI)

IEEE SIGNAL PROCESSING LETTERS, VOL. 18, NO. 10, OCTOBER 2011 587 Compressed LED Illumination emitting diodes (LEDs) are ca- pable of producing high intensity light across a wide spread of frequencies. This facilitates the design of the driving waveforms for the LEDs. This procedure is known as illumination sensing

Nehorai, Arye

409

Californidfsdfsdfsdfa OMNI-DIRECTIONAL LED  

E-Print Network (OSTI)

the California Energy Commission and UC Davis, with support by the U.S. Department of Energy and the National and application of energy-efficient lighting by conducting technology development and demonstrations, outreach Manager: Nicole Graeber California Lighting Technology Center University of California, Davis 633 Pena

California at Davis, University of

410

The Global Health Group 50 Beale Street, Suite 1200  

E-Print Network (OSTI)

The Global Health Group 50 Beale Street, Suite 1200 San Francisco, CA 94105, USA tel: 415 Global Health Group Offices, 50 Beale Street, San Francisco, CA. Contact

Klein, Ophir

411

A LIMITED LIABILITY PARTNERSHIP 1050 Thomas Jefferson Street, NW  

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

A LIMITED LIABILITY PARTNERSHIP A LIMITED LIABILITY PARTNERSHIP 1050 Thomas Jefferson Street, NW Seventh Floor Washington, DC 20007 (202) 298-1800 Phone (202) 338-2416 Fax MEMORANDUM TO: DOE Office of General Counsel FROM: Doug Smith DATE: August 29, 2013 RE: Record of Communication Concerning Ceiling Fan and Ceiling Fan Light Kit Framework Document-Docket No. EERE-2012-BT-STD-0045 This memo provides an overview of communications made to DOE staff on the subject of possible changes to standards and test procedures for ceiling fans and ceiling fan light kits. The communications occurred at a meeting held at 10:30 a.m. on August 20, 2013, following the close of the comment period on the initial framework document for ceiling fans and light kits. The meeting attendees included:

412

LOW-COST LED LUMINAIRE FOR GENERAL ILLUMINATION  

SciTech Connect

During this two-year Solid-State Lighting (SSL) Manufacturing R&D project Cree developed novel light emitting diode (LED) technologies contributing to a cost-optimized, efficient LED troffer luminaire platform emitting at ~3500K correlated color temperature (CCT) at a color rendering index (CRI) of >90. To successfully achieve program goals, Cree used a comprehensive approach to address cost reduction of the various optical, thermal and electrical subsystems in the luminaire without impacting performance. These developments built on Cree’s high- brightness, low-cost LED platforms to design a novel LED component architecture that will enable low-cost troffer luminaire designs with high total system efficacy. The project scope included cost reductions to nearly all major troffer subsystems as well as assembly costs. For example, no thermal management components were included in the troffer, owing to the optimized distribution of compact low- to mid-power LEDs. It is estimated that a significant manufacturing cost savings will result relative to Cree’s conventional troffers at the start of the project. A chief project accomplishment was the successful development of a new compact, high-efficacy LED component geometry with a broad far-field intensity distribution and even color point vs. emission angle. After further optimization and testing for production, the Cree XQ series of LEDs resulted. XQ LEDs are currently utilized in Cree’s AR series troffers, and they are being considered for use in other platforms. The XQ lens geometry influenced the independent development of Cree’s XB-E and XB-G high-voltage LEDs, which also have a broad intensity distribution at high efficacy, and are finding wide implementation in Cree’s omnidirectional A-lamps.

Lowes, Ted

2014-07-31T23:59:59.000Z

413

Modeling of dimmable High Power LED illumination distribution using ANFIS on the isolated area  

Science Journals Connector (OSTI)

High power light emitting diodes (HP-LEDs) are more suitable for energy saving applications and have becoming replacing traditional fluorescent and incandescent bulbs for its energy efficient. Therefore, HP-LED lighting has been regarded in the next-generation lighting. In this study, illumination distribution of white color HP-LED is modeled by adaptive neuro-fuzzy inference system (ANFIS) approach on the isolated area while LED head is fixed. Subtractive clustering with hybrid learning approach is used to train the realized ANFIS architectures. End of the numerous experiment we finally concluded that, ANFIS could be used to modeling the illumination distribution applications perfectly.

?smail Kiyak; Vedat Topuz; Bülent Oral

2011-01-01T23:59:59.000Z

414

Novel Applications of LEDs for Energy Savings A Systems Level View  

E-Print Network (OSTI)

product (3 production lines @ 24x5) Hg Arc Lamp (300 W/in) 65% of energy in IR UV LED Array (150 WNovel Applications of LEDs for Energy Savings A Systems Level View Santa Barbara Summit on Energy in a Round Lighting Hole? · DC device in an AC Powered World · Cool light source with thermal management

Salama, Khaled

415

Hand- en hoekstukken met LED-verlichting  

Science Journals Connector (OSTI)

Een groot voordeel van LED-verlichting is dat deze vorm van verlichting ... geeft als de conventionele verlichtingstechnieken. Daarmee is LED-licht bijna gelijk aan daglicht.

   

2009-04-01T23:59:59.000Z

416

Federally Led Accident Investigation Reports | Department of...  

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

Federally Led Accident Investigation Reports Federally Led Accident Investigation Reports Includes Pre-March 2011 Type A Reports September 1, 1998 Type A Accident Investigation...

417

WhiteOptics' Low-Cost Reflector Composite Boosts LED Fixture Efficiency  

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

With the help of DOE funding, WhiteOptics has developed a composite coating that can be used to improve efficiency in backlit, indirect, and cavity-mixing LED luminaire designs by maximizing light reflection and output. The highly diffuse coating, which is based on a novel high-reflectance particle technology, allows for uniform distribution of light without exaggerating the point-source nature of the LEDs, and is intended to offer an overall system cost-improving solution for LED optics.

418

SMART LIGHTING ENGINEERING RESEARCH CENTER Dr. Shiv Kalyanaraman  

E-Print Network (OSTI)

The rapidly growing global use of LEDs in automotive lighting, traffic signals and streetlights is creating

Linhardt, Robert J.

419

California Street Biomass Facility | Open Energy Information  

Open Energy Info (EERE)

Street Biomass Facility Street Biomass Facility Jump to: navigation, search Name California Street Biomass Facility Facility California Street Sector Biomass Facility Type Landfill Gas Location San Bernardino County, California Coordinates 34.9592083°, -116.419389° 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":34.9592083,"lon":-116.419389,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

420

Manhattan Project: Los Alamos Street Scene  

Office of Scientific and Technical Information (OSTI)

LOS ALAMOS STREET SCENE LOS ALAMOS STREET SCENE Los Alamos (The Town) Resources > Photo Gallery Los Alamos street scene. Fuller Lodge and the "Big House" are visible in the distance (see below). Above is a view of Los Alamos (looking north). In the distance, Fuller Lodge and the "Big House" are visible to the left and right, respectively (see below). The photograph is reproduced from Los Alamos Scientific Laboratory, Los Alamos: Beginning of an Era, 1943-1945 (Los Alamos: Public Relations Office, Los Alamos Scientific Laboratory, ca. 1967-1971), 13. The labels and "close-ups" below were made by the Office of History and Heritage Resources. Los Alamos street scene (labeled) Close-up of Fuller Lodge Close-up of the "Big House" Click on a link below to return to:

Note: This page contains sample records for the topic "led street light" 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

Main Street Loan Program (North Dakota)  

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

The Main Street Loan Program loans of up to $24,999 through the Certified Development Corporation (CDC) in participation with local lenders or economic development organizations for small...

422

Complete drawing prototypes for urban complete streets  

E-Print Network (OSTI)

A study was performed to determine how drawings for streets may be tailored to a broad range of viewers and agendas, yet still be viewed as a credible design tool for architects. With a growing number of cities designing ...

Winder, James Ira

2010-01-01T23:59:59.000Z

423

The Macmillan Building 4 Crinan Street  

E-Print Network (OSTI)

The Macmillan Building 4 Crinan Street London N1 9XW, UK Tel: +44 (0) 20 7833 4000 e-mail: nature microRNAs B. R. Cullen 426 The promises and pitfalls of RNA-interference-based therapeutics D

Cai, Long

424

140 St. George Street Toronto, Ontario  

E-Print Network (OSTI)

140 St. George Street Toronto, Ontario M5S 3G6 www.ischool.utoronto.ca BURSARY APPLICATION/COMMON LAW/FAMILY, ETC.? EXPLAIN: ARE YOU CURRENTLY EMPLOYED? YES NO NUMBER OF HOURS PER WEEK GROSS SALARY

Toronto, University of

425

Small Area Array-Based LED Luminaire Design  

SciTech Connect

This report contains a summary of technical achievements during a three-year project to demonstrate high efficiency LED luminaire designs based on small area array-based gallium nitride diodes. Novel GaN-based LED array designs are described, specifically addressing the thermal, optical, electrical and mechanical requirements for the incorporation of such arrays into viable solid-state LED luminaires. This work resulted in the demonstration of an integrated luminaire prototype of 1000 lumens cool white light output with reflector shaped beams and efficacy of 89.4 lm/W at CCT of 6000oK and CRI of 73; and performance of 903 lumens warm white light output with reflector shaped beams and efficacy of 63.0 lm/W at CCT of 2800oK and CRI of 82. In addition, up to 1275 lumens cool white light output at 114.2 lm/W and 1156 lumens warm white light output at 76.5 lm/W were achieved if the reflector was not used. The success to integrate small area array-based LED designs and address thermal, optical, electrical and mechanical requirements was clearly achieved in these luminaire prototypes with outstanding performance and high efficiency.

Thomas Yuan

2008-01-09T23:59:59.000Z

426

A planning methodology for arterial streets  

E-Print Network (OSTI)

A PLANNING METHODOLOGY FOR ARTERIAL STREETS A Thesis by MARC DARYL WILLIAMS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1991... Major Subject: Civil Engineering A PLANNING METHODOLOGY FOR ARTERIAL STREETS A Thesis by MARC DARYL WILLIAMS Approved as to style and content by: Daniel B. Fambro (Chair of Committee) J. T. . Yao (Head of Department) Kim Q. Hill (Member...

Williams, Marc Daryl

2012-06-07T23:59:59.000Z

427

Diagnostik-Set Göttingen auf White-LED und UV-LED-Basis  

Science Journals Connector (OSTI)

Der Handgriff wurde weiterentwickelt: Ein Wechselaufsatz ermöglicht nun ein einfaches Austauschen der White-LED und der UV-LED.

2014-09-01T23:59:59.000Z

428

Solid-State Lighting: Text-Alternative Version: Municipal Solid-State  

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

Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast to someone by E-mail Share Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast on Facebook Tweet about Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast on Twitter Bookmark Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast on Google Bookmark Solid-State Lighting: Text-Alternative Version: Municipal Solid-State Street Lighting Consortium Retrofit Financial Analysis Tool Webcast on Delicious Rank Solid-State Lighting: Text-Alternative Version: Municipal

429

Market Trial: Selling Off-Grid Lighting Products in Rural Kenya  

E-Print Network (OSTI)

people reported using an incandescent dry cell flashlightpurchasers. Type of Light  Incandescent  LED dry cell  LED LED rechargeable, and incandescent dry cell flashlights were

Tracy, Jennifer

2012-01-01T23:59:59.000Z

430

TRAFFIC LIGHT CONTROL IN AN AVENUE Ezio Marchi  

E-Print Network (OSTI)

. In this short paper we solve in general the problem of synchronization of lights in a street or avenue of havingTRAFFIC LIGHT CONTROL IN AN AVENUE By Ezio Marchi IMA Preprint Series # 2224 ( October 2008 ) INSTITUTE FOR MATHEMATICS AND ITS APPLICATIONS UNIVERSITY OF MINNESOTA 400 Lind Hall 207 Church Street S

431

Clients of sex workers in Switzerland: it makes sense to counsel and propose rapid test for HIV on the street, a preliminary report  

Science Journals Connector (OSTI)

The study took place over 5 nights in September 2008 (from 10 pm to 1 am) in the red light district of Lausanne, Switzerland. This well defined area consists of 4 parallel streets each less than 400 meters long r...

Esther-Amélie Diserens; Patrick Bodenmann; Chantal N'Garambe…

2010-03-01T23:59:59.000Z

432

Solid-State Lighting: Solid-State Lighting Videos  

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

Solid-State Lighting Videos to Solid-State Lighting Videos to someone by E-mail Share Solid-State Lighting: Solid-State Lighting Videos on Facebook Tweet about Solid-State Lighting: Solid-State Lighting Videos on Twitter Bookmark Solid-State Lighting: Solid-State Lighting Videos on Google Bookmark Solid-State Lighting: Solid-State Lighting Videos on Delicious Rank Solid-State Lighting: Solid-State Lighting Videos on Digg Find More places to share Solid-State Lighting: Solid-State Lighting Videos on AddThis.com... Conferences & Meetings Presentations Publications Webcasts Videos Tools Solid-State Lighting Videos On this page you can access DOE Solid-State Lighting (SSL) Program videos. Photo of a museum art gallery with LED lights in track fixtures overhead. The City of Los Angeles LED Streetlight Program

433

Model Specification for Networked Outdoor Lighting Control Systems  

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

The DOE Municipal Solid-State Street Lighting Consortium's Model Specification for Networked Outdoor Lighting Control Systems is a tool designed to help cities, utilities, and other local agencies...

434

Chapter 6, Residential Lighting Evaluation Protocol: The Uniform...  

Office of Environmental Management (EM)

STAR lighting fixtures. More recently, programs are introducing solid-state light-emitting diode (LED) lamps. The future of savings claims from residential lighting programs is...

435

Solid-State Lighting | Department of Energy  

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

overviewbrochurefeb2013.pdf More Documents & Publications DOE Lighting Program Update: LED Validation Activities Solid-State Lighting R&D Multi-Year Program Plan Emerging...

436

Emerging Lighting Technology | Department of Energy  

Office of Environmental Management (EM)

fupwgspring11kinzey.pdf More Documents & Publications DOE Lighting Program Update: LED Validation Activities Solid-State Lighting Federal Technology Deployment Pilot:...

437

Working with Cities to Light Our Streets Better | Department...  

Office of Environmental Management (EM)

energy efficiency in data centers, demonstrating the benefits of providing building energy use data to owners, expanding the use of Energy Savings Performance Contracts, and...

438

LIGHT EMITTING DIODE (LED) TRAFFIC SIGNAL SURVEY RESULTS  

E-Print Network (OSTI)

Forest Norco Belmont El Monte Lakewood Norwalk Berkeley Encinitas Lancaster Oakdale Beverly Hills Escalon Downey Laguna Hills Newark Bell Gardens Dublin Laguna Niguel Newport Beach Bellflower El Cajon Lake Hills Glendora Mammoth Lakes Piedmont Chowchilla Grand Terrace Manhattan Beach Pismo Beach Chula Vista

439

An LED-based Flasher System for VERITAS  

E-Print Network (OSTI)

We describe a flasher system designed for use in monitoring the gains of the photomultiplier tubes used in the VERITAS gamma-ray telescopes. This system uses blue light-emitting diodes (LEDs) so it can be operated at much higher rates than a traditional laser-based system. Calibration information can be obtained with better statistical precision with reduced loss of observing time. The LEDs are also much less expensive than a laser. The design features of the new system are presented, along with measurements made with a prototype mounted on one of the VERITAS telescopes.

Hanna, D; McCutcheon, M; Nikkinen, L; 10.1016/j.nima.2009.10.107

2009-01-01T23:59:59.000Z

440

The Ecological Street Tree: Mainstreaming the Production of Street Tree-based Ecosystem Services in Northern California Cities, 1980-2008  

E-Print Network (OSTI)

Alethea Harper, Jeff Williams, and Jason A. Hayter, “StreetAlethea Harper, Jeff Williams, and Jason A. Hayter. “Street

Seamans, Georgia Norma Silvera

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "led street light" 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

Top 5 Things You Didn't Know About Holiday Lights | Department...  

Office of Environmental Management (EM)

product used in outdoor street and parking lot lighting. While small, this chip is the heart of the light and as of June 2012 was brighter than a 60-watt light bulb. | Photo...

442

Heat dissipation performance of a high-brightness LED package assembly using high-thermal conductivity filler  

Science Journals Connector (OSTI)

This paper presents a thermal analysis and experimental validation of natural convective heat transfer of a high-brightness light-emitting diode (LED) package assembly. The substrate...

Yung, K C; Liem, H; Choy, H S

2013-01-01T23:59:59.000Z

443

Comparison of the Electromagnetic Spectra of Common Light Sources: A General Chemistry Laboratory Exercise  

Science Journals Connector (OSTI)

Compact fluorescent light (CFL); light emitting diode (LED). ... White LED light can be produced by mixing light from red, green, and blue LEDs. ... Students observe that the white light from a six LED flashlight array (Figure 5) arises from two major peaks and that the spectrum is less continuous than those of incandescent bulbs, but more continuous than those of CFLs. ...

Edward Maslowsky, Jr.

2013-10-03T23:59:59.000Z

444

LED Dot matrix text recognition method in natural scene  

Science Journals Connector (OSTI)

Abstract In recent years, light-emitting diodes dot-matrix text (LED text) is being widely used for displaying information and announcements. However, there is currently no text detection system that is capable of handling LED text. Unlike general printed text, it is not easy to detect and recognize LED text due to its discontinuity. A character of the LED is generally displayed with a matrix of segments and composed with them to generate the text. Furthermore, it is necessary to detect each character from a line of LED text for creating a robust text detection system. Thus, this paper proposes a method for LED text detection and recognition in natural scene images. To perform this goal of detection and recognition of a character and text, it consists of two main steps with the following steps: the first step, a Canny edge was used to detect character pixels which appear in LED display area from scene images. The center points of edge segments are calculated. These points are merged based on their properties to generate a character candidate. In order to obtain character feature, the spatial information such as a centroid and orientation of the character candidate are used. These values are then analyzed using a k-nearest neighbor approach for classifying the character candidate as a certain alphanumeric. In the second step, the recognized characters are later combined into a text line based on the similarity of their characteristics such as width, height, aspect ratio and color. The post-processing of text line generating is then applied for rectifying the falsely recognized characters. In experiments, our proposed method achieves 68.8% and 47% for detection and recognition rate, respectively. These results show the robustness and effectiveness of the proposed method for detecting and recognizing the LED text in natural scene images that has filled the vacancy that the printed and dense text detection system has not covered.

Wahyono; Kanghyun Jo

2015-01-01T23:59:59.000Z

445

Decisions that led to Y-12  

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

Decisions that led to Y-12 Last week we saw the political and organizational changes that led up to the Manhattan Project being created on August 13, 1942. The S-1 Executive...

446

Gradual Spread of Market-Led Industrialization  

E-Print Network (OSTI)

Gradual Spread of Market-Led Industrialization Jeffrey D. Sachs and Xiaokai Yang CID Working Paper Paper no. 11 Gradual Spread of Market-Led Industrialization Jeffrey D. Sachs and Xiaokai Yang* Abstract the network effects of industrialization, though this function is not perfect. Hence, market led

447

Design and Application of LED Beam Display Based on LED Number Display Interface  

Science Journals Connector (OSTI)

This paper introduces a design actualizing LED beam display. The design directly used LED number display interface on single-chip micro- ... to obtain font and bit interface line through LED number display socket...

Hong Deng; Xiuhui Chang; Yanling Zhang

2012-01-01T23:59:59.000Z

448

Solid-State Lighting: Market Challenges  

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

Market Challenges to someone by Market Challenges to someone by E-mail Share Solid-State Lighting: Market Challenges on Facebook Tweet about Solid-State Lighting: Market Challenges on Twitter Bookmark Solid-State Lighting: Market Challenges on Google Bookmark Solid-State Lighting: Market Challenges on Delicious Rank Solid-State Lighting: Market Challenges on Digg Find More places to share Solid-State Lighting: Market Challenges on AddThis.com... Why SSL LED Basics OLED Basics Using LEDs R&D Challenges Market Challenges Market Challenges Resources Compact Fluorescent Lighting in America PDF Guiding Market Introduction of SSL Products PDF LED Directional Lamps PDF LED MR16 Lamps Recessed LED Downlights PDF General Service LED Lamps PDF What to Ask - A Checklist for Buyers of LED Lighting Products PDF

449

DOE Announces Webinars on Maintenance Practices for LED Streetlights...  

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

Maintenance Practices for LED Streetlights, LED Color Stability, and More DOE Announces Webinars on Maintenance Practices for LED Streetlights, LED Color Stability, and More April...

450

A Practical Primer to LED Technology | Department of Energy  

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

A Practical Primer to LED Technology A Practical Primer to LED Technology A Practical Primer to LED Technology More Documents & Publications LED LUMINAIRE LIFETIME: Recommendations...

451

Tests gauge LED sensors for fuel-dye measurements  

SciTech Connect

The goal of this work was to develop a low cost, robust sensor to allow direct measurement of Solvent Red 164 dye concentration in off-road fuel at refineries and fuel terminals. Optical absorption sensors based on light emitting diodes (LEDs) are rugged, low-cost, have low power consumption, and can be designed to be intrinsically safe.LED-based systems have been used in a variety of chemical detection applications including heavy metals, pH, CO2, and O2. The approach for this work was to develop a sensor that could be mounted on a pipeline sight glass, precluding the need for direct contact of the sensor with the fuel. Below is described the design and testing of three different LED/photodiode sensors utilizing reflectance spectrometry for the measurement of dye concentration.

Ozanich, Richard M.; Lucke, Richard B.; Melville, Angela M.; Wright, Bob W.

2009-10-19T23:59:59.000Z

452

CLLC Mins -Dec 2013 CDW.doc CULHAM LOCAL LIAISON COMMITTEE  

E-Print Network (OSTI)

and recovering waste. The street lights on site have been replaced with more energy saving led lights, etc. CCTV

453

Photonic crystal light emitting diode.  

E-Print Network (OSTI)

?? This master's thesis describe electromagnetic simulations of a gallium antimonide (GaSb) light emitting diode, LED. A problem for such devices is that most of… (more)

Leirset, Erlend

2010-01-01T23:59:59.000Z

454

EC-LEDS Transport | Open Energy Information  

Open Energy Info (EERE)

EC-LEDS Transport EC-LEDS Transport Jump to: navigation, search Name EC-LEDS Transport Agency/Company /Organization United States Department of State Partner National Renewable Energy Laboratory Sector Climate Focus Area Transportation Topics Background analysis, Baseline projection, Co-benefits assessment, Finance, GHG inventory, Implementation, Low emission development planning, -LEDS, Policies/deployment programs Program Start 2011 Country Global References Transportation Assessment Toolkit[1] "Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) is a U.S. Government initiative to support developing countries' efforts to pursue long-term, transformative development and accelerate sustainable, climate-resilient economic growth while slowing the growth of greenhouse

455

Automatic diagnosis and control of distributed solid state lighting systems  

Science Journals Connector (OSTI)

This paper describes a new design concept of automatically diagnosing and compensating LED degradations in distributed solid state lighting (SSL) systems. A failed LED may...

Dong, Jianfei; van Driel, Willem; Zhang, Guoqi

2011-01-01T23:59:59.000Z

456

A model of pedestrians’ intended waiting times for street crossings at signalized intersections  

Science Journals Connector (OSTI)

For the purposes of both traffic-light control and the design of roadway layouts, it is important to understand pedestrian street-crossing behavior because it is not only crucial for improving pedestrian safety but also helps to optimize vehicle flow. This paper explores the mechanism of pedestrian street crossings during the red-man phase of traffic light signals and proposes a model for pedestrians’ waiting times at signalized intersections. We start from a simplified scenario for a particular pedestrian under specific traffic conditions. Then we take into account the interaction between vehicles and pedestrians via statistical unconditioning. We show that this in general leads to a U-shaped distribution of the pedestrians’ intended waiting time. This U-shaped distribution characterizes the nature of pedestrian street-crossing behavior, showing that in general there are a large proportion of pedestrians who cross the street immediately after arriving at the crossing point, and a large proportion of pedestrians who are willing to wait for the entire red-man phase. The U-shaped distribution is shown to reduce to a J-shaped or L-shaped distribution for certain traffic scenarios. The proposed statistical model was applied to analyze real field data.

Baibing Li

2013-01-01T23:59:59.000Z

457

Shelf life of five meat products displayed under light emitting diode or fluorescent lighting.  

E-Print Network (OSTI)

??Light emitting diode (LED) and fluorescent (FLS) lighting effects on enhanced pork loin chops, beef longissimus dorsi and semimembranosus steaks, ground beef, and ground turkey… (more)

Steele, Kyle Stover

2011-01-01T23:59:59.000Z

458

The National Science Bowl Students are Here! (The Streets of...  

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

The National Science Bowl Students are Here (The Streets of D.C. Just Got a Little Smarter.) The National Science Bowl Students are Here (The Streets of D.C. Just Got a Little...

459

37th World Energy Engineering Congress / Featuring GreenStreet...  

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

Congress Featuring GreenStreet 37th World Energy Engineering Congress Featuring GreenStreet October 1, 2014 2:00PM EDT to October 2, 2014 10:00PM EDT Washington, DC http:...

460

Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Natural Gas Street Natural Gas Street Sweepers Improve Air Quality in New York to someone by E-mail Share Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on Facebook Tweet about Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on Twitter Bookmark Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on Google Bookmark Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on Delicious Rank Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on Digg Find More places to share Alternative Fuels Data Center: Natural Gas Street Sweepers Improve Air Quality in New York on AddThis.com...

Note: This page contains sample records for the topic "led street light" 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

OSRAM SYLVANIA Develops High-Efficiency LED Troffer Replacement  

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

With the help of DOE funding, OSRAM SYLVANIA is developing a high-efficiency LED 2'x2' troffer replacement that is expected to be commercially available in the spring of 2012 and to be cost-competitive with existing troffers of that size. It is projected to have a light output of up to 4,000 lumens, an efficacy of more than 100 lm/W, and a CCT of 3500K.

462

Energy-Saving Bottom-Lit LED Backlight with Angle-Control Freeform Lens  

Science Journals Connector (OSTI)

In this paper, relation of transmittance of prism sheets used in bottom-lit LED backlight on the direction of incident light was studied. Freeform lens was utilized to enhance the...

Qin, Zong; Wang, Kai; Wang, Shang; Liu, Sheng

463

Successful Selection of LED Streetlight Luminaires: Optimizing Illumination and Economic Performance  

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

This March 6, 2013 webcast reviewed the factors involved in successful selection of LED streetlight luminaires. Presenters Eric Haugaard of Cree Lighting and Chad Stalker of Philips Lumileds guided...

464

Measurement of LED chips using a large-area silicon photodiode  

Science Journals Connector (OSTI)

We propose the output power measurement of bare-wafer/chip light-emitting diodes (LEDs) using a large-area silicon (Si) photodiode with a simple structure and high accuracy relative to...

Chou, Pei-Ting; Ying, Shang-Ping; Chen, Tzung-Te; Fu, Han-Kuei; Wang, Chien-Ping; Lee, Chih-Kung

2014-01-01T23:59:59.000Z

465

Hierarchical Reliability Model for Life Prediction of Actively Cooled LED-Based Luminaire  

Science Journals Connector (OSTI)

The interest in light-emitting diodes (LEDs) for illumination applications has been increasing continuously over the last decade due to two key attributes of long lifetime and low energy consumption compared to t...

Bong-Min Song; Bongtae Han; Avram Bar-Cohen…

2011-01-01T23:59:59.000Z

466

Spectral optimization of color temperature tunable white LEDs with excellent color rendering and luminous efficacy  

Science Journals Connector (OSTI)

The optimization model of limited luminous efficacy (LLE) for correlated color temperature (CCT) tunable phosphor-coated white light-emitting diodes (pc-W LEDs) consisting of blue...

He, Guoxing; Tang, Ju

2014-01-01T23:59:59.000Z

467

Improved color coordinates of green monochromatic pc-LED capped with a band-pass filter  

Science Journals Connector (OSTI)

This study introduces a “greener” green monochromatic phosphor-converted light-emitting diode (pc-LED) using a band-pass filter (BPF) combined with a long-pass dichroic...

Oh, Ji Hye; Yang, Su Ji; Sung, Yeon-Goog; Do, Young Rag

2013-01-01T23:59:59.000Z

468

Slutrapport for PSO 337-068 Udvikling af LED lyskilder og lamper  

E-Print Network (OSTI)

and RGB Lamps. The objective of this project was to pave the way for replacement of incandescent LED light source with an efficacy of 51 lm/W and a CRI index of 92 that can replace an incandescent

469

Text-Alternative Version: CALiPER Report Series 20 on LED PAR38 Lamps  

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

Michael Royer, Lighting Engineer, Pacific Northwest National Laboratory: The CALiPER program looks at typical LED lamp performance attributes. As we've gone through the progression of reports, we...

470

Performance Evaluation of a LED-IT-Sensor Integrated Streetlight System in USN  

Science Journals Connector (OSTI)

Recently, with the issue of a Green-IT technology, various studies on a eco-friendly luminous source that ... of high oil price and environmental pollution, LED has made a great attention as a ... lights. In this...

Sun Jin Oh

2012-01-01T23:59:59.000Z

471

COLORIMTRIE DES LED : INCERTITUDES ET INFLUENCE DU COURANT LECTRIQUE 17 Colorimtrie des LED  

E-Print Network (OSTI)

COLORIM�TRIE DES LED : INCERTITUDES ET INFLUENCE DU COURANT �LECTRIQUE 17 N. POUSSET Colorimétrie des LED : incertitudes et influence du courant électrique LEDs colorimetry: uncertainties proximale, et indices de rendu des couleurs) de sources d'éclairage à LED, du LNE-INM/Cnam, est décrit. Les

Paris-Sud XI, Université de

472

Mail Stop 084 (781) 736-8787 415 South Street (781) 736-3420 Fax  

E-Print Network (OSTI)

on South Street towards Brandeis/Roberts MBTA Station. Make your first left onto Old South Street (One Way

Fraden, Seth

473

LED Exit Signs | Open Energy Information  

Open Energy Info (EERE)

Signs Jump to: navigation, search TODO: Add description List of LED Exit Signs Incentives Retrieved from "http:en.openei.orgwindex.php?titleLEDExitSigns&oldid380629"...

474

Low Emission Development Strategies (LEDS): Technical, Institutional...  

Open Energy Info (EERE)

and Policy Lessons Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Low Emission Development Strategies (LEDS): Technical, Institutional and Policy Lessons Agency...

475

A Practical Primer to LED Technology  

Energy Savers (EERE)

- A Measurement Issue 2011 LED Transformations, LLC 17 What's Different Highest Energy Efficiency 0 20 40 60 80 100 120 140 160 White Sodium High Pressure Sodium Compact...

476

A Novel High-Power-Factor LED-Lamp Driver Based on a Single-Stage Power Conversion  

Science Journals Connector (OSTI)

This paper proposes a novel single-stage driver for supplying a T8-type light-emitting diode (LED) lamp with high power factor. The presented driver integrates a dual buck-boost converter with coupled inductors and a half-bridge series-resonant converter ... Keywords: converter, driver, light-emitting diode (LED)

Chun An Cheng, En Chih Chang, Ching Shien Tseng, Tsung Yuan Chung

2014-06-01T23:59:59.000Z

477

Solid-State Lighting  

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

-U.S. Senator Jeff Bingaman, Chair, Senate Committee on Energy and Natural Resources 2013-2025 * The Future of LED General Lighting 2013-2025 * The Promise of OLED General...

478

Quality and Performance of LED Flashlights in Kenya: Common End User Preferences and Complaints  

SciTech Connect

Flashlights that use LED technology have quickly emerged as the dominant source of portable lighting in Kenya. While flashlights do not normally provide a substitute for kerosene and other highly inefficient fuels, they are an important early manifestation of LED lighting in the developing world that can serve as a platform - or deterrent - to the diffusion of the technology into the broader off-grid lighting market. The lead acid batteries embedded in flashlights also represent an important source of hazardous waste, and flashlight durability is thus an important determinant of the rate of waste disposal. Low-cost LED flashlights with prices from $1 to $4 are now widely available in shops and markets throughout Kenya. The increased penetration of LED technology in the flashlight market is significant, as over half of all Kenyan households report owning a flashlight (Kamfor, 2002). While this shift from conventional incandescent technology to modern LEDs may appear to be a promising development, end users that our research team interviewed expressed a number of complaints about the quality and performance of these new flashlights. This raises concerns about the interests of low-income flashlight users, and it may also indicate the onset of a broader market spoiling effect for off-grid lighting products based on LED technology (Mills and Jacobson, 2008; Lighting Africa, 2007). The quality of low-cost LED flashlights can contribute to market spoiling because these products appear to represent the first contact that most Kenyans have with LED technology. In this report, our team uses interviews with 46 end users of flashlights to collect information about their experiences, perceptions, and preferences. We focus especially on highlighting common complaints from respondents about the flashlights that they have used, as well as on noting the features that they indicated were important when evaluating the quality of a flashlight. In previous laboratory tests, researchers from our team found a wide range of quality and performance among battery powered LED lights (Granderson, et al. 2008).

Tracy, Jenny; Jacobson, Arne; Mills, Evan

2009-09-14T23:59:59.000Z

479

Review Absorbance Based Light Emitting Diode Optical Sensors and Sensing Devices  

E-Print Network (OSTI)

emitting diodes (LEDs) as light sources is one strategy, which has been successfully applied in chemical

Dermot Diamond

480

Pecan Street Project Inc | Open Energy Information  

Open Energy Info (EERE)

Project Inc Project Inc Jump to: navigation, search Name Pecan Street Project Inc Place Austin, Texas Zip 78759 Product Austin-based smart grid, energy system developer. The Pecan Street Project is involved in a smart grid project. Coordinates 30.267605°, -97.742984° 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":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "led street light" 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.


481

FranklinAvenue SouthDepysterStreet  

E-Print Network (OSTI)

Tonto's F16 Water Street Tavern & Cajun Dave's F17 International Home Markets F18 Ray's Place F19 The Pu25 F15 F18 F19 F26 F6 F10 F12 F14 F13 F17 F9 F7 F38 F37 F36 F35 F5 R2 R4 R35 R36 R32 R34 R33 R30 R31

Khan, Javed I.

482

Residential energy-efficient lighting adoption survey  

Science Journals Connector (OSTI)

Artificial lighting has transformed how humans relate to the world, by improving productivity and making spaces habitable. The adoption of energy-efficient solid-state lighting, light emitting diodes (LED), ha...

Andrea L. Hicks; Thomas L. Theis

2014-04-01T23:59:59.000Z

483

A practical means for calibrating an LED-based photometric stereo system  

Science Journals Connector (OSTI)

Abstract Conventional Photometric Stereo (PS) techniques are usually based on the assumption that the light sources are assumed sufficiently far from the object that all incoming light can be modeled using parallel rays. Meanwhile, for near-field lighting conditions the light sources are close to the object so the parallel ray model cannot be used. To determine the surface normal for each point on the object more accurately, the incoming light direction should be calculated individually for each point. In this work, based on a simple PS setup consisting of LED lamps and one camera, we present a practical method for calibrating lighting directions. First, an optical model of an LED was introduced in the calibration procedure to represent the surface irradiance and image irradiance more accurately. A reference sphere was used for the calibration so that the LED optical axis could be estimated by extracting the specular points from the reference sphere. By introducing the LED emitting model, distance between the LED and the specular point along the optical axis can be calculated. Thus, the incident lighting directions for various image points can be estimated individually. To improve the estimation robustness, a non-linear fitting approach was also applied. Experiments were conducted using objects and the results are compared with traditional methods to demonstrate its feasibility and improvement.

Limin Xie; Zhan Song; Guohua Jiao; Xinhan Huang; Kui Jia

2015-01-01T23:59:59.000Z

484

Alan Turing's fundamental contributions to computing led to the development of modern computing technology, and his work conti-  

E-Print Network (OSTI)

work and legacy. New light is shed on the future of computing science by visionary Ray Kurzweil of Technology Lausanne (EPFL),Switzerland Easy access to the latest titles in your specific fields.Create your without notice. All errors and omissions excepted. Printed in Germany Name Street City/ZIP-Code Country E

Teuscher, Christof

485

LED deep UV source for charge management of gravitational reference sensors  

Science Journals Connector (OSTI)

Proof mass electrical charge management is an important functionality for the ST-7-LTP technology demonstration flight and for LISA. Photoemission for charge control is accomplished by using deep ultraviolet (UV) light to excite photoelectron emission from an Au alloy. The conventional UV source is a mercury vapour lamp. We propose and demonstrate charge management using a deep UV light emitting diode (LED) source. We have acquired selected AlGaN UV LEDs, characterized their performance and successfully used them to realize charge management. The UV LEDs emit at a 257 nm central wavelength with a bandwidth of ~12 nm. The UV power for a free-space LED is ~120 µW, and after fibre coupling is ~16 µW, more than sufficient for LISA applications. We have directly observed the LED UV light-induced photocurrent response from an Au photocathode and an Au-coated GRS/ST-7 proof mass. We demonstrated fast switching of UV LEDs and associated fast changes in photocurrent. This allows modulation and continuous discharge to meet stringent LISA disturbance reduction requirements. We propose and demonstrate AC charge management outside the gravitational wave signal band. Further, the megahertz bandwidth for UV LED switching allows for up to six orders of magnitude dynamic power range and a number of novel modes of operations. The UV LED based charge management system offers the advantages of small-size, lightweight, fibre-coupled operation with very low power consumption.

Ke-Xun Sun; Brett Allard; Saps Buchman; Scott Williams; Robert L Byer

2006-01-01T23:59:59.000Z

486

Parking Savings Through LED Project for Iowa City | Department of Energy  

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

Parking Savings Through LED Project for Iowa City Parking Savings Through LED Project for Iowa City Parking Savings Through LED Project for Iowa City July 15, 2010 - 1:15pm Addthis Joshua DeLung What does this project do? Iowa City combines State Energy Program grant and rebate from utility. City to save $66,000 annually with energy efficient LED lights in parking garages. Project will reduce energy usage by 1.4 million kWh annually. Iowa City's $1.2 million LED project is expected to save the city about $5,000 each month from changing out old, metal halide light fixtures for LED lights. The cost of the project was partially covered by a $419,000 grant from the U.S. Department of Energy's State Energy Program and a $45,000 rebate from MidAmerican Energy, the local utility company. Brightening the future The LEDs being installed in Iowa City use less energy than normal light

487

A new approach for bikeshed analysis with consideration of topography, street connectivity, and energy consumption  

Science Journals Connector (OSTI)

Abstract In recent years, bike planning has gained the attention of planners and the public as a sustainable and active mode of transportation that can reduce traffic congestion, vehicle emissions, and health risks. Following the success of public bikesharing programs in cities in France and Canada, multiple US cities have initiated similar programs. With this background, spatial analysis has been applied to produce heat maps of bike-travel demand, and identify suitable areas for bikeshare infrastructure. Existing research considers a variety of factors, such as resident demographics, land use, street types, and availability of bike facilities and transit services. However, few studies fully account for topography and street connectivity. The study proposes a method to combine topography and presence of intersections with estimates of energy used to bike, and incorporate the resulting travel-impedance factor, as well as street connectivity, into a spatial analysis. Using the case in Montgomery County, Maryland, USA, where elevation and street connectivity differ substantially among neighborhoods, this study shows how the size and shape of bikesheds (or bike demand catchment area) originating from the proposed light rail stations vary in the analysis with or without taking into account these critical factors. The analysis results have significant implications for various bike planning efforts using spatial analysis.

Hiroyuki Iseki; Matthew Tingstrom

2014-01-01T23:59:59.000Z

488

Professional-led versus family-led support groups: Exploring the differences  

Science Journals Connector (OSTI)

Support groups often help families cope more effectively with relatives' mental illnesses. This study examines the differences between support groups led by professionals and those led by family members, focusing...

Susan A. Pickett Ph.D.; Tamar Heller Ph.D.…

1998-11-01T23:59:59.000Z

489

Revisiting of LED pumped bulk laser: first demonstration of Nd:YVO4 LED pumped laser  

Science Journals Connector (OSTI)

We describe here what is, to the best of our knowledge, the first LED pumped Nd:YVO4 laser. Near-IR LED arrays with a wavelength centered close to 850 nm were used to...

Barbet, Adrien; Balembois, François; Paul, Amandine; Blanchot, Jean-Philippe; Viotti, Anne-Lise; Sabater, Jacques; Druon, Frédéric; Georges, Patrick

2014-01-01T23:59:59.000Z

490

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

491

Fort Meade demonstration test LEDS in freezer rooms, fiber optics in display cases  

SciTech Connect

Demonstration projects at Fort George G. Meade, MD, substituted LED lighting for incandescent bulbs in commisary wal-in freezers and fiber optic lighting in reach-in display cases. The goal was to reduce energy consumption and the results were positive. Journal article published in Public Works Digest

Parker, Steven; Parker, Graham B.

2008-10-25T23:59:59.000Z

492

Emerging Lighting Technology  

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

Emerging Lighting Technology Emerging Lighting Technology Bruce Kinzey Pacific Northwest National Laboratory FUPWG - Portland, OR April 20, 2011 www.ssl.energy.gov 2 | Solid-State Lighting Program GATEWAY Demonstration Program * Purpose: demonstrate new SSL products in real-world applications that save energy, match or improve illumination, and are cost- effective * Demos generate critical field experience providing: - Feedback to manufacturers - Data for utility incentives - Market readiness of specific applications to users - Advancement in lighting knowledge Central Park, NY Photo: Ryan Pyle Smithsonian American Art Museum, Washington, D.C. Photo: Scott Rosenfeld www.ssl.energy.gov 3 | Solid-State Lighting Program LED Product Explosion www.ssl.energy.gov 4 | Solid-State Lighting Program LEDs are Not a Universal Lighting

493

Shaping the Next - Buildings and Energy: Advanced Lighting  

SciTech Connect

short bit on advanced lighting for the future relating specifically to controls and new tech such as LEDs

Richman, Eric E.

2014-01-01T23:59:59.000Z

494

Wavelength-stable rare earth-free green light-emitting diodes for energy efficiency  

Science Journals Connector (OSTI)

Solid state lighting seeks to replace both, incandescent and fluorescent lighting by energy efficient light-emitting diodes (LEDs). Just like compact fluorescent tubes, current white...

Wetzel, Christian; Detchprohm, Theeradetch

2011-01-01T23:59:59.000Z

495

Engineering design and assessment of a demand-sensitive LED streetlighting system  

Science Journals Connector (OSTI)

Abstract A solid-state lighting technology was demonstrated at a US Navy Research Center in Maryland – where light-emitting diode (LED) luminaires were substituted for existing high pressure sodium (HPS) streetlighting units, and an intelligent lighting control system was deployed. This paper summarizes the prudent engineering design and implementation of the demand-sensitive feature of the LED streetlighting system at Naval Surface Warfare Center (NSWC) Carderock Division that provides an annual average electricity and CO2 savings of 74%. In addition, technical system performance and life-cycle assessment of the HPS and the new LED systems are discussed. Best practices and field experience that can help with other similar smart lighting implementation elsewhere are also summarized.

Manisa Pipattanasomporn; Saifur Rahman; Isaac Flory; Yonael Teklu

2014-01-01T23:59:59.000Z

496

Application Summary Report 22: LED MR16 Lamps  

SciTech Connect

This report analyzes the independently tested photometric performance of 27 LED MR16 lamps. It describes initial performance based on light output, efficacy, distribution, color quality, electrical characteristics, and form factor, with comparisons to a selection of benchmark halogen MR16s and ENERGY STAR qualification thresholds. Three types of products were targeted. First, CALiPER sought 3000 K lamps with the highest rated lumen output (i.e., at least 500 lm) or a claim of equivalency to a 50 W halogen MR16 or higher. The test results indicate that while the initial performance of LED MR16s has improved across the board, market-available products still do not produce the lumen output and center beam intensity of typical 50 W halogen MR16 lamps. In fact, most of the 18 lamps in this category had lower lumen output and center beam intensity than a typical 35 W halogen MR16 lamp. Second, CALiPER sought lamps with a CRI of 90 or greater. Only four manufacturers were identified with a product in this category. CALiPER testing confirmed the performance of these lamps, which are a good option for applications where high color fidelity is needed. A vast majority of the LED MR16 lamps have a CRI in the low 80s; this is generally acceptable for ambient lighting, but may not always be acceptable for focal lighting. For typical LED packages, there is a fundamental tradeoff between CRI and efficacy, but the lamps in the high-CRI group in this report still offer comparable performance to the rest of the Series 22 products in other performance areas. Finally, CALiPER sought lamps with a narrow distribution, denoted as a beam angle less than 15°. Five such lamps were purchased. Notably, no lamp was identified as having high lumen output (500 lumens or greater), high CRI (90 or greater), a narrow distribution (15° or less), and an efficacy greater than 60 lm/W. This would be an important achievement for LED MR16s especially if output could reach approximately 700 800 lumens, or the approximate equivalent of a 50 W halogen MR16 lamp. Many factors beyond photometric performance should be considered during specification. For example, performance over time, transformer and dimmer compatibility, and total system performance are all critical to a successful installation. Subsequent CALiPER reports will investigate more complex issues.

Royer, Michael P.

2014-07-23T23:59:59.000Z

497

Marine Corps Base Quantico Achieves 85% Savings in Parking Lighting...  

Office of Environmental Management (EM)

by conducting a major overhaul of its outdoor lighting (replacing 2,000 fixtures with LED lights), while boosting safety and security throughout the site. mcbquantico2014.pdf...

498

SemiLEDs | Open Energy Information  

Open Energy Info (EERE)

SemiLEDs SemiLEDs Jump to: navigation, search Name SemiLEDs Place Boise, Idaho Zip 83702 Product US-based LED chip maker with Asia manufacturing operations. Coordinates 43.60698°, -116.193409° 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":43.60698,"lon":-116.193409,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

499

LEDS Events Calendar | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LEDS Events Calendar Jump to: navigation, search Home | About | Inventory | Partnerships | Capacity Building | Webinars | Reports | Events | News | List Serve LEDS Events Calendar January 2014 Today January February March April May June July August September October November December 2014 Go to month Sunday Monday Tuesday Wednesday Thursday Friday Saturday 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 Add an Event Upcoming LEDS Events Retrieved from "http://en.openei.org/w/index.php?title=LEDS_Events_Calendar&oldid=384765" What links here Related changes

500

DOE Hosts LED Industry Standards Workshop  

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

The U.S. Department of Energy hosted an LED Industry Standards Workshop on March 1, 2006 in Washington, D.C. The Workshop provided a forum to encourage greater cooperation and coordination among...