FR2572210B1 - IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT - Google Patents

IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT

Info

Publication number
FR2572210B1
FR2572210B1 FR8416192A FR8416192A FR2572210B1 FR 2572210 B1 FR2572210 B1 FR 2572210B1 FR 8416192 A FR8416192 A FR 8416192A FR 8416192 A FR8416192 A FR 8416192A FR 2572210 B1 FR2572210 B1 FR 2572210B1
Authority
FR
France
Prior art keywords
liquid crystal
crystal optical
controlled birefringence
birefringence effect
optical cells
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
Application number
FR8416192A
Other languages
French (fr)
Other versions
FR2572210A1 (en
Inventor
Georges Durand
Nelamangala Madhusudana
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Priority to FR8416192A priority Critical patent/FR2572210B1/en
Publication of FR2572210A1 publication Critical patent/FR2572210A1/en
Application granted granted Critical
Publication of FR2572210B1 publication Critical patent/FR2572210B1/en
Expired 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
    • G02F1/01—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
    • 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
    • G02F1/13787—Hybrid-alignment cells
FR8416192A 1984-10-23 1984-10-23 IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT Expired FR2572210B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8416192A FR2572210B1 (en) 1984-10-23 1984-10-23 IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8416192A FR2572210B1 (en) 1984-10-23 1984-10-23 IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT

Publications (2)

Publication Number Publication Date
FR2572210A1 FR2572210A1 (en) 1986-04-25
FR2572210B1 true FR2572210B1 (en) 1987-02-20

Family

ID=9308910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8416192A Expired FR2572210B1 (en) 1984-10-23 1984-10-23 IMPROVEMENTS IN LIQUID CRYSTAL OPTICAL CELLS USING A CONTROLLED BIREFRINGENCE EFFECT

Country Status (1)

Country Link
FR (1) FR2572210B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598827B1 (en) * 1986-05-14 1992-10-02 Centre Nat Rech Scient IMPROVEMENTS ON LIQUID CRYSTAL OPTICAL DEVICES, ALLOWING THE IMPLEMENTATION OF HIGH FREQUENCY ALTERNATIVE EXCITATIONS.
US5532854A (en) * 1994-01-25 1996-07-02 Fergason; James L. Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526177A1 (en) * 1982-04-28 1983-11-04 Centre Nat Rech Scient IMPROVEMENTS TO OPTICAL CELLS USING LIQUID CRYSTALS
US4577930A (en) * 1982-05-24 1986-03-25 International Business Machines Corporation Weak boundary storage liquid crystal display devices with bias voltage

Also Published As

Publication number Publication date
FR2572210A1 (en) 1986-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse