BE776192A - Cellule optique - Google Patents

Cellule optique

Info

Publication number
BE776192A
BE776192A BE776192A BE776192A BE776192A BE 776192 A BE776192 A BE 776192A BE 776192 A BE776192 A BE 776192A BE 776192 A BE776192 A BE 776192A BE 776192 A BE776192 A BE 776192A
Authority
BE
Belgium
Prior art keywords
optical cell
cell
optical
Prior art date
Application number
BE776192A
Other languages
English (en)
French (fr)
Inventor
Helfrich W
Schadt M
Original Assignee
Hoffmann La Roche
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
Priority claimed from CH1793770A external-priority patent/CH532261A/de
Priority claimed from CH526071A external-priority patent/CH564207A5/de
Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of BE776192A publication Critical patent/BE776192A/xx

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
    • G02F1/1396—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 liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Holo Graphy (AREA)
BE776192A 1970-12-04 1971-12-03 Cellule optique BE776192A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1793770A CH532261A (de) 1970-12-04 1970-12-04 Lichtsteuerzelle
CH526071A CH564207A5 (it) 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
BE776192A true BE776192A (fr) 1972-06-05

Family

ID=25697330

Family Applications (1)

Application Number Title Priority Date Filing Date
BE776192A BE776192A (fr) 1970-12-04 1971-12-03 Cellule optique

Country Status (11)

Country Link
BE (1) BE776192A (it)
CA (1) CA1010136A (it)
DD (1) DD97070A5 (it)
DE (1) DE2158563B2 (it)
DK (1) DK133714B (it)
ES (1) ES397630A1 (it)
FR (1) FR2117358A5 (it)
GB (1) GB1372868A (it)
IT (1) IT946051B (it)
NL (1) NL150579B (it)
SE (1) SE374965B (it)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536857B2 (it) * 1972-08-16 1978-03-11
FR2198167B1 (it) * 1972-08-29 1976-05-21 Commissariat Energie Atomique
DE2366514C3 (de) * 1972-09-30 1985-10-10 Dai Nippon Printing Co., Ltd., Tokio/Tokyo Elektrooptisches Anzeigegerät
US3897996A (en) 1972-09-30 1975-08-05 Dainippon Printing Co Ltd Electro-optic display device
FR2220804B1 (it) * 1973-03-08 1976-10-08 Western Electric Co
DE2410527C3 (de) * 1973-03-08 1983-11-03 Casio Computer Co., Ltd., Tokyo Elektronisches Zeitanzeigegerät
US3837729A (en) * 1973-05-14 1974-09-24 Hoffmann La Roche Liquid crystal display
CH564206A5 (it) * 1973-09-27 1975-07-15 Bbc Brown Boveri & Cie
GB1478592A (en) * 1974-03-01 1977-07-06 Secr Defence Liquid crystal devices
GB1472247A (en) * 1974-02-21 1977-05-04 Secr Defence Liquid crystal devices
CH573126A5 (it) * 1974-06-07 1976-02-27 Bbc Brown Boveri & Cie
DE2554226C3 (de) * 1975-12-03 1985-07-11 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen Strahlungskollektor und -verdichter in Form einer fluoreszierenden Kunststoffplatte
DE2658568C2 (de) * 1975-12-25 1983-12-22 Sharp K.K., Osaka Flüssigkristall-Darstellungseinrichtung mit einem pleochroitischen Farbstoff-Gastmaterial und einem nematischen Flüssigkristall-Wirtmaterial
FR2356173A1 (fr) * 1976-06-21 1978-01-20 Gen Electric Procede pour ameliorer le temps de descente d'un dispositif d'affichage a composition de cristaux liquides nematique en helice
DE2706375C3 (de) * 1977-02-15 1982-08-26 Siemens AG, 1000 Berlin und 8000 München Anzeigeanordnung mit einer Lichtventilvorrichtung, insbesondere einer Flüssigkristallzelle
US4231068A (en) * 1977-06-15 1980-10-28 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Optical screens
DE2735195C2 (de) * 1977-08-04 1982-05-06 Siemens AG, 1000 Berlin und 8000 München Blendfreier Rückspiegel
DE2849381C3 (de) * 1978-11-14 1981-04-30 Siemens AG, 1000 Berlin und 8000 München Passive elektrooptische Anzeigevorrichtung zur Sieben-Segment-Darstellung mit Fehlanzeige-Erkennung
DE2910779C3 (de) * 1979-03-19 1981-11-19 Siemens AG, 1000 Berlin und 8000 München Anzeigebaustein mit einer elektrooptischen Anzeigevorrichtung
FR2452122A1 (fr) * 1979-03-23 1980-10-17 Thomson Csf Dispositif optique attenuateur reglable a commande electrique et appareil de prise de vue comportant ce dispositif
DE3107520A1 (de) * 1981-02-27 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "verfahren zur herstellung von orientierungsschichten fuer fluessigkristalldisplays sowie orientierungsschichten aufweisende fluessigkristalldisplays"
US4435047A (en) * 1981-09-16 1984-03-06 Manchester R & D Partnership Encapsulated liquid crystal and method
DE3138518C1 (de) * 1981-09-28 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Feldeffekt-Flüssigkristallzelle
US4523848A (en) * 1981-10-01 1985-06-18 National Research Development Corporation Polariscope
US4596446B2 (en) * 1982-06-29 1997-03-18 Secr Defence Brit Liquid crystal devices with particular cholestric pitch-cell thickness ratio
FR2558025B1 (fr) * 1984-01-10 1987-05-22 Thomson Csf Systeme de liaison pour des transmissions bidirectionnelles simultanees par fibre optique
JPS61210324A (ja) * 1985-03-15 1986-09-18 Hitachi Ltd 液晶表示素子
JPS6421416A (en) * 1987-07-17 1989-01-24 Hitachi Ltd Liquid crystal display element
DE3918828C2 (de) * 1989-06-09 1997-12-18 Aeg Ges Moderne Inf Sys Mbh Flüssigkristall-Anzeigevorrichtung
DE4011116A1 (de) * 1990-04-06 1991-10-10 Nokia Unterhaltungselektronik Verfahren zur bestimmung des anstellwinkels von fluessigkristall-molekuelen einer fluessigkristall-zelle
DE4212744C2 (de) * 1992-04-16 1994-10-13 Merck Patent Gmbh TN-Zelle mit d. DELTAn zwischen 0,15 und 0,70 mum
JP3753440B2 (ja) * 1992-05-07 2006-03-08 セイコーエプソン株式会社 液晶表示装置及び液晶表示装置の駆動方法
JP3634390B2 (ja) * 1992-07-16 2005-03-30 セイコーエプソン株式会社 液晶電気光学素子
DE4416298A1 (de) * 1994-05-09 1995-11-16 Abb Research Ltd Verfahren und Vorrichtung zur optischen Ermittlung einer physikalischen Größe
KR100254647B1 (ko) 1995-05-17 2000-05-01 야스카와 히데아키 액정 표시 장치와 그 구동 방법 및 이에 이용되는 구동 회로 및 전원 회로 장치
US8023052B1 (en) 2010-08-17 2011-09-20 Lc-Tec Displays Ab High-speed liquid crystal polarization modulator
US8184215B2 (en) 2010-08-17 2012-05-22 Lc-Tec Displays Ab High-speed liquid crystal polarization modulator
US8820937B2 (en) 2010-08-17 2014-09-02 Lc-Tec Displays Ab Optical polarization state modulator assembly for use in stereoscopic three-dimensional image projection system
DE102012221527A1 (de) 2012-11-26 2014-06-12 Heine Optotechnik Gmbh & Co Kg Optisches Diagnoseinstrument

Also Published As

Publication number Publication date
IT946051B (it) 1973-05-21
DE2158563B2 (de) 1975-10-23
DE2158563A1 (de) 1972-06-29
NL7115838A (it) 1972-06-06
SE374965B (sv) 1975-03-24
CA1010136A (en) 1977-05-10
GB1372868A (en) 1974-11-06
ES397630A1 (es) 1975-03-16
FR2117358A5 (it) 1972-07-21
DK133714C (it) 1988-05-02
NL150579B (nl) 1976-08-16
DD97070A5 (it) 1973-04-12
DK133714B (da) 1976-07-05

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: S.A. BBC BROWN BOVERY CIE

Effective date: 19911203

Owner name: F. HOFFMANN LA ROCHE A.G.

Effective date: 19911203