Optical switches and switching methods

Doty, Michael

Title: Optical switches and switching methods

Full Record
Other Related Research

Abstract

A device and method for collecting subject responses, particularly during magnetic imaging experiments and testing using a method such as functional MRI. The device comprises a non-metallic input device which is coupled via fiber optic cables to a computer or other data collection device. One or more optical switches transmit the subject's responses. The input device keeps the subject's fingers comfortably aligned with the switches by partially immobilizing the forearm, wrist, and/or hand of the subject. Also a robust nonmetallic switch, particularly for use with the input device and methods for optical switching.

Inventors:: Doty, Michael

Issue Date:: 2008-03-04

Research Org.:: The MIND Institute, Albuquerque, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1176181

Patent Number(s):: 7340125

Application Number:: 11/405,989

Assignee:: The MIND Institute (Albuquerque, NM)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

Show more

G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G01R33/283 - {Intercom or optical viewing arrangements, structurally associated with NMR apparatus}

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B6/353 - {the optical element being a shutter, baffle, beam dump or opaque element
G02B6/3552 - {1x1 switch, e.g. on/off switch}
G02B6/3574 - {Mechanical force, e.g. pressure variations}

Show less

DOE Contract Number:: FG02-99ER62764

Resource Type:: Patent

Resource Relation:: Patent File Date: 2006 Apr 17

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; 60 APPLIED LIFE SCIENCES

Citation Formats


                    Doty, Michael. Optical switches and switching methods.  United States: N. p., 2008. 
        Web.

Copy to clipboard


                    Doty, Michael. Optical switches and switching methods.  United States.

Copy to clipboard


                    Doty, Michael. Tue .  
        "Optical switches and switching methods".  United States.  https://www.osti.gov/servlets/purl/1176181.

Copy to clipboard


                    
@article{osti_1176181,

  title        = {Optical switches and switching methods},

  author       = {Doty, Michael},

  abstractNote = {A device and method for collecting subject responses, particularly during magnetic imaging experiments and testing using a method such as functional MRI. The device comprises a non-metallic input device which is coupled via fiber optic cables to a computer or other data collection device. One or more optical switches transmit the subject's responses. The input device keeps the subject's fingers comfortably aligned with the switches by partially immobilizing the forearm, wrist, and/or hand of the subject. Also a robust nonmetallic switch, particularly for use with the input device and methods for optical switching.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2008},

  month        = {3}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Organic solid state switches incorporating porphyrin compounds and method for producing organic solid state optical switches

Patent Wasielewski, Michael R [Naperville, IL]; Gaines, George L [River Forest, IL]; Niemczyk, Mark P [Wheaton, IL]; ...

A light-intensity dependent molecular switch comprised of a compound which shuttles an electron or a plurality of electrons from a plurality of electron donors to an electron acceptor upon being stimulated with light of predetermined wavelengths, said donors selected from porphyrins and other compounds, and a method for making said compound.
Full Text Available
Optically triggered high voltage switch network and method for switching a high voltage

Patent El-Sharkawi, Mohamed A [Renton, WA]; Andexler, George [Everett, WA]; Silberkleit, Lee I [Mountlake Terrace, WA]

An optically triggered solid state switch and method for switching a high voltage electrical current. A plurality of solid state switches (350) are connected in series for controlling electrical current flow between a compensation capacitor (112) and ground in a reactive power compensator (50, 50') that monitors the voltage and current flowing through each of three distribution lines (52a, 52b and 52c), which are supplying three-phase power to one or more inductive loads. An optical transmitter (100) controlled by the reactive power compensation system produces light pulses that are conveyed over optical fibers (102) to a switch driver (110') thatmore » « less
Full Text Available
Methods and apparatus for optical switching using electrically movable optical fibers

Patent Peterson, Kenneth A [Albuquerque, NM]

Methods and apparatuses for electrically controlled optical switches are presented. An electrically controlled optical switch includes a fixture formed using a laminated dielectric material, a first optical fiber having a fixed segment supported by the fixture and a movable segment extending into a cavity, a second optical fiber having a fixed segment supported by the fixture and an extended segment where an optical interconnect may be established between the first optical fiber and the second optical fiber, and a first electrical actuator functionally coupled to the fixture and the first fiber which alters a position of the moveable segment, basedmore » « less
Full Text Available
Optical switching system and method

Patent Ranganathan, Radha [N. Tonawanda, NY]; Gal, Michael [Engadine, AU]; Taylor, P Craig [Salt Lake City, UT]

An optically bistable device is disclosed. The device includes a uniformly thick layer of amorphous silicon to constitute a Fabry-Perot chamber positioned to provide a target area for a probe beam. The probe beam has a maximum energy less than the energy band gap of the amorphous semiconductor. In a preferred embodiment, a multilayer dielectric mirror is positioned on the Fabry-Perot chamber to increase the finesse of switching of the device. The index of refraction of the amorphous material is thermally altered to alter the transmission of the probe beam.
Full Text Available
Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same

Patent Wilcox, Russell B [Oakland, CA]

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

Similar Records