DE68908132D1 - Optisches lichtventilsystem zur erzeugung eines phasenkonjugierten strahls steuerbarer intensitaet. - Google Patents

Optisches lichtventilsystem zur erzeugung eines phasenkonjugierten strahls steuerbarer intensitaet.

Info

Publication number
DE68908132D1
DE68908132D1 DE8989907404T DE68908132T DE68908132D1 DE 68908132 D1 DE68908132 D1 DE 68908132D1 DE 8989907404 T DE8989907404 T DE 8989907404T DE 68908132 T DE68908132 T DE 68908132T DE 68908132 D1 DE68908132 D1 DE 68908132D1
Authority
DE
Germany
Prior art keywords
generating
phase
light valve
valve system
optical light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE8989907404T
Other languages
English (en)
Other versions
DE68908132T2 (de
Inventor
Uzi Efron
Yuri Owechko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DirecTV Group Inc
Original Assignee
Hughes Aircraft Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of DE68908132D1 publication Critical patent/DE68908132D1/de
Application granted granted Critical
Publication of DE68908132T2 publication Critical patent/DE68908132T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
    • G02F1/3536—Four-wave interaction
    • G02F1/3538—Four-wave interaction for optical phase conjugation
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
DE89907404T 1988-06-10 1989-04-24 Optisches lichtventilsystem zur erzeugung eines phasenkonjugierten strahls steuerbarer intensität. Expired - Fee Related DE68908132T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/204,646 US4893905A (en) 1988-06-10 1988-06-10 Optical light valve system for providing phase conjugated beam of controllable intensity

Publications (2)

Publication Number Publication Date
DE68908132D1 true DE68908132D1 (de) 1993-09-09
DE68908132T2 DE68908132T2 (de) 1994-03-10

Family

ID=22758827

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89907404T Expired - Fee Related DE68908132T2 (de) 1988-06-10 1989-04-24 Optisches lichtventilsystem zur erzeugung eines phasenkonjugierten strahls steuerbarer intensität.

Country Status (6)

Country Link
US (1) US4893905A (de)
EP (1) EP0375768B1 (de)
JP (1) JPH07101269B2 (de)
DE (1) DE68908132T2 (de)
IL (1) IL90178A0 (de)
WO (1) WO1989012249A2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5132811A (en) * 1989-08-10 1992-07-21 Seiko Instruments Inc. Holographic operating optical apparatus
DE69128103T2 (de) * 1990-04-05 1998-04-02 Seiko Epson Corp Optische Vorrichtung
US5680212A (en) * 1996-04-15 1997-10-21 National Research Council Of Canada Sensitive and fast response optical detection of transient motion from a scattering surface by two-wave mixing
US6243199B1 (en) * 1999-09-07 2001-06-05 Moxtek Broad band wire grid polarizing beam splitter for use in the visible wavelength region
US7570424B2 (en) * 2004-12-06 2009-08-04 Moxtek, Inc. Multilayer wire-grid polarizer
US7961393B2 (en) * 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
US20080316599A1 (en) * 2007-06-22 2008-12-25 Bin Wang Reflection-Repressed Wire-Grid Polarizer
US20100103517A1 (en) * 2008-10-29 2010-04-29 Mark Alan Davis Segmented film deposition
US8248696B2 (en) 2009-06-25 2012-08-21 Moxtek, Inc. Nano fractal diffuser
US8451450B2 (en) * 2009-09-14 2013-05-28 Bio-Rad Laboratories, Inc. Near real time optical phase conjugation
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire grid polarizer
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8873144B2 (en) 2011-05-17 2014-10-28 Moxtek, Inc. Wire grid polarizer with multiple functionality sections
US8913320B2 (en) 2011-05-17 2014-12-16 Moxtek, Inc. Wire grid polarizer with bordered sections
US8922890B2 (en) 2012-03-21 2014-12-30 Moxtek, Inc. Polarizer edge rib modification
US9348076B2 (en) 2013-10-24 2016-05-24 Moxtek, Inc. Polarizer with variable inter-wire distance

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807976A (en) * 1987-04-01 1989-02-28 Hughes Aircraft Company Light valve system and method with pulsed readout
US4762397A (en) * 1987-06-19 1988-08-09 Hughes Aircraft Company Optical phase conjugator with spatially resolvable thresholding utilizing liquid crystal light valve
US4773719A (en) * 1987-07-30 1988-09-27 Anderson Dana Z Optical novelty filter
US4778261A (en) * 1987-10-13 1988-10-18 University Of Rochester Method and apparatus for non-frequency-shifted, phase conjugation of optical waves by brillouin-enhanced four-wave mixing
US4807970A (en) * 1987-11-23 1989-02-28 International Business Machines Corporation Holograms in photorefractive materials

Also Published As

Publication number Publication date
JPH03501299A (ja) 1991-03-22
WO1989012249A2 (en) 1989-12-14
US4893905A (en) 1990-01-16
DE68908132T2 (de) 1994-03-10
EP0375768A1 (de) 1990-07-04
EP0375768B1 (de) 1993-08-04
IL90178A0 (en) 1989-12-15
JPH07101269B2 (ja) 1995-11-01
WO1989012249A3 (en) 1990-03-08

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HUGHES ELECTRONICS CORP., EL SEGUNDO, CALIF., US

8339 Ceased/non-payment of the annual fee