FR2254057A1 - Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating - Google Patents

Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating

Info

Publication number
FR2254057A1
FR2254057A1 FR7342147A FR7342147A FR2254057A1 FR 2254057 A1 FR2254057 A1 FR 2254057A1 FR 7342147 A FR7342147 A FR 7342147A FR 7342147 A FR7342147 A FR 7342147A FR 2254057 A1 FR2254057 A1 FR 2254057A1
Authority
FR
France
Prior art keywords
diffraction grating
liquid crystalline
deflector
transparent electrodes
polarised 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.)
Granted
Application number
FR7342147A
Other languages
French (fr)
Other versions
FR2254057B1 (en
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7342147A priority Critical patent/FR2254057A1/en
Publication of FR2254057A1 publication Critical patent/FR2254057A1/en
Application granted granted Critical
Publication of FR2254057B1 publication Critical patent/FR2254057B1/fr
Granted 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
    • G02F1/29—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 position or the direction of light beams, i.e. deflection
    • G02F1/292—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 position or the direction of light beams, i.e. deflection by controlled diffraction or phased-array beam steering
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/01—Function characteristic transmissive
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/02—Function characteristic reflective

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

A parallel beam of coherent light from a source passes through a polariser and a deviator which is connected electrically (20, 30) to a power supply. The deviator comprises a series of transparent electrodes (3) mounted on a liquid crystalline bed (4) deposited on an electrode (2). The electrodes are connected to a selector circuit (6) which permits different voltages to be connected causing an electric field which deflects precisely the beam of light. The series of electrodes (3) are regularly spaced in the form of a diffraction grating and receive an outer transparent support (8).
FR7342147A 1973-11-27 1973-11-27 Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating Granted FR2254057A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7342147A FR2254057A1 (en) 1973-11-27 1973-11-27 Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7342147A FR2254057A1 (en) 1973-11-27 1973-11-27 Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating

Publications (2)

Publication Number Publication Date
FR2254057A1 true FR2254057A1 (en) 1975-07-04
FR2254057B1 FR2254057B1 (en) 1978-11-10

Family

ID=9128314

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7342147A Granted FR2254057A1 (en) 1973-11-27 1973-11-27 Deflector for coherent polarised light - has transparent electrodes on liquid crystalline bed forming diffraction grating

Country Status (1)

Country Link
FR (1) FR2254057A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541784A1 (en) * 1983-02-25 1984-08-31 Thomson Csf DEVICE FOR STATIC DEFLECTION OF AN INFRA-RED BEAM
FR2547072A1 (en) * 1983-05-31 1984-12-07 Thomson Csf DEVICE FOR DEFLECTING AN INFRA-RED BEAM WITH ELECTRONIC CONTROL
US4572616A (en) * 1982-08-10 1986-02-25 Syracuse University Adaptive liquid crystal lens
WO1987005125A1 (en) * 1986-02-18 1987-08-27 Hughes Aircraft Company Voltage tunable optical beam switching device
WO1988001753A1 (en) * 1986-08-25 1988-03-10 Hughes Aircraft Company Light deflector apparatus and method
US4795238A (en) * 1983-06-13 1989-01-03 Canon Kabushiki Kaisha Liquid crystal focusing screen having different groups of electrodes
US4937539A (en) * 1987-08-19 1990-06-26 Hughes Aircraft Company Phased array for optical beam control
US4958914A (en) * 1986-06-27 1990-09-25 Hughes Aircraft Company Optical intensity-to-position mapping and light deflector apparatus and method
US5151814A (en) * 1987-08-19 1992-09-29 Hughes Aircraft Company Phased array for optical beam control
EP0642051A2 (en) * 1993-09-03 1995-03-08 Hughes Aircraft Company Reconfigurable optical beam splitter and method
US6437762B1 (en) 1995-01-11 2002-08-20 William A. Birdwell Dynamic diffractive optical transform
WO2010149587A3 (en) * 2009-06-23 2011-05-05 Seereal Technologies S.A. Light modulation device for a display for representing two- and/or three-dimensional image content, comprising variable diffraction elements based on linear, parallel electrodes

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4572616A (en) * 1982-08-10 1986-02-25 Syracuse University Adaptive liquid crystal lens
EP0121449A1 (en) * 1983-02-25 1984-10-10 Thomson-Csf Static deflection device for an infrared beam
US4639091A (en) * 1983-02-25 1987-01-27 Thomson-Csf Static deflector device for an infrared beam
FR2541784A1 (en) * 1983-02-25 1984-08-31 Thomson Csf DEVICE FOR STATIC DEFLECTION OF AN INFRA-RED BEAM
FR2547072A1 (en) * 1983-05-31 1984-12-07 Thomson Csf DEVICE FOR DEFLECTING AN INFRA-RED BEAM WITH ELECTRONIC CONTROL
EP0130859A1 (en) * 1983-05-31 1985-01-09 Thomson-Csf Infrared beam deflection device with electronic control
US4795238A (en) * 1983-06-13 1989-01-03 Canon Kabushiki Kaisha Liquid crystal focusing screen having different groups of electrodes
WO1987005125A1 (en) * 1986-02-18 1987-08-27 Hughes Aircraft Company Voltage tunable optical beam switching device
US4958914A (en) * 1986-06-27 1990-09-25 Hughes Aircraft Company Optical intensity-to-position mapping and light deflector apparatus and method
WO1988001753A1 (en) * 1986-08-25 1988-03-10 Hughes Aircraft Company Light deflector apparatus and method
US4937539A (en) * 1987-08-19 1990-06-26 Hughes Aircraft Company Phased array for optical beam control
US5151814A (en) * 1987-08-19 1992-09-29 Hughes Aircraft Company Phased array for optical beam control
EP0642051A2 (en) * 1993-09-03 1995-03-08 Hughes Aircraft Company Reconfigurable optical beam splitter and method
EP0642051A3 (en) * 1993-09-03 1995-09-20 Hughes Aircraft Co Reconfigurable optical beam splitter and method.
US5650835A (en) * 1993-09-03 1997-07-22 Hughes Electronics Reconfigurable optical beam splitter and method
US6437762B1 (en) 1995-01-11 2002-08-20 William A. Birdwell Dynamic diffractive optical transform
US7009581B2 (en) 1995-01-11 2006-03-07 Birdwell William A Dynamic diffractive optical transform
WO2010149587A3 (en) * 2009-06-23 2011-05-05 Seereal Technologies S.A. Light modulation device for a display for representing two- and/or three-dimensional image content, comprising variable diffraction elements based on linear, parallel electrodes
EP2446326A2 (en) * 2009-06-23 2012-05-02 SeeReal Technologies S.A. Light modulation device for a display for representing two- and/or three-dimensional image content, comprising variable diffraction elements based on linear, parallel electrodes
US10684489B2 (en) 2009-06-23 2020-06-16 Seereal Technologies S.A. Light modulation device for a display for representing two- and/or three-dimensional image content
US11002982B2 (en) 2009-06-23 2021-05-11 Seereal Technologies S. A. Light modulator device for a display for representing two- and/or three-dimensional image content
US11294246B2 (en) 2009-06-23 2022-04-05 Seereal Technologies S.A. Light modulator device used for a display for the presentation of two- and/or three-dimensional image contents
US11914251B2 (en) 2009-06-23 2024-02-27 Seereal Technologies S.A. Light modulation device for a display for representing two- and/or three-dimensional image content

Also Published As

Publication number Publication date
FR2254057B1 (en) 1978-11-10

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