BE868224A - Valve de lumiere a cristaux liquides fonctionnant en courant alternatif - Google Patents

Valve de lumiere a cristaux liquides fonctionnant en courant alternatif

Info

Publication number
BE868224A
BE868224A BE2057071A BE2057071A BE868224A BE 868224 A BE868224 A BE 868224A BE 2057071 A BE2057071 A BE 2057071A BE 2057071 A BE2057071 A BE 2057071A BE 868224 A BE868224 A BE 868224A
Authority
BE
Belgium
Prior art keywords
liquid crystal
light valve
crystal light
current liquid
alternative current
Prior art date
Application number
BE2057071A
Other languages
English (en)
Inventor
J Grinberg
M Waldner
P O Braatz
A D Jacobson
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 BE868224A publication Critical patent/BE868224A/fr

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
    • G02F1/01—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
    • G02F1/1354—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied having a particular photoconducting structure or material
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136277—Active matrix addressed cells formed on a semiconductor substrate, e.g. of silicon

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
BE2057071A 1977-06-20 1978-06-19 Valve de lumiere a cristaux liquides fonctionnant en courant alternatif BE868224A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80822477A 1977-06-20 1977-06-20

Publications (1)

Publication Number Publication Date
BE868224A true BE868224A (fr) 1978-10-16

Family

ID=25198222

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2057071A BE868224A (fr) 1977-06-20 1978-06-19 Valve de lumiere a cristaux liquides fonctionnant en courant alternatif

Country Status (1)

Country Link
BE (1) BE868224A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413676A1 (fr) * 1977-12-28 1979-07-27 Hughes Aircraft Co Modulateur de lumiere a cristaux liquides a excitation alternative

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2413676A1 (fr) * 1977-12-28 1979-07-27 Hughes Aircraft Co Modulateur de lumiere a cristaux liquides a excitation alternative

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Legal Events

Date Code Title Description
CA Change of address of the owner of the patent
RE Patent lapsed

Owner name: LIGHT VALVE PRODUCTS INC.

Effective date: 19960630