JPS599327U - electro-optical device - Google Patents

electro-optical device

Info

Publication number
JPS599327U
JPS599327U JP6201383U JP6201383U JPS599327U JP S599327 U JPS599327 U JP S599327U JP 6201383 U JP6201383 U JP 6201383U JP 6201383 U JP6201383 U JP 6201383U JP S599327 U JPS599327 U JP S599327U
Authority
JP
Japan
Prior art keywords
liquid crystal
electric field
incident light
mentioned
electro
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.)
Pending
Application number
JP6201383U
Other languages
Japanese (ja)
Inventor
ウオルフガング・ヘルフリツヒ
マルタン・シヤツト
Original Assignee
エフ・ホフマン・ラ・ロシユ・ウント・コンパニ−・アクチエンゲゼルシヤフト
ビ−ビ−シ−・アクチエンゲゼルシヤフト・ブラウン・ボベリ・ウント・コンパニ−
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 エフ・ホフマン・ラ・ロシユ・ウント・コンパニ−・アクチエンゲゼルシヤフト, ビ−ビ−シ−・アクチエンゲゼルシヤフト・ブラウン・ボベリ・ウント・コンパニ− filed Critical エフ・ホフマン・ラ・ロシユ・ウント・コンパニ−・アクチエンゲゼルシヤフト
Publication of JPS599327U publication Critical patent/JPS599327U/en
Pending 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
    • G02F1/1396—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)
  • Motor Or Generator Current Collectors (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２枚の板の間に液晶が配置され、該液晶はネマチック相
および正の誘電異方性を示す物質から本質的に成ってい
て入射光を実質上全て通すものであり、上記板は該板に
隣接した上記液晶の分子に方位づけ効果を及ぼす表面構
造を有しており、さらに上記液晶に電場を与える手段が
設けられ、上記液晶は、上記電場を印加しないときは上
記板に垂直な方向にらせん状構造を有し、かつ上記電場
を印加したときは上記板に隣接した境界層部分はらせん
状にねじれているが電場に整列した構造となり、また入
射光方向からみた上記液晶の前に１個そして後に１個の
偏光子が互いに直交関係で配置されており、さらに後者
の偏光子の後に反射表面が設けられている、入射光を選
択的に反射させるための電気光学装置。A liquid crystal is disposed between two plates, said liquid crystal consisting essentially of a material exhibiting a nematic phase and positive dielectric anisotropy, and transmitting substantially all of the incident light; means for applying an electric field to the liquid crystal, the liquid crystal spiraling in a direction perpendicular to the plate when the electric field is not applied. When the above-mentioned electric field is applied, the boundary layer portion adjacent to the above-mentioned plate is twisted in a spiral shape, but becomes a structure aligned with the electric field, and one layer is formed in front of the above-mentioned liquid crystal when viewed from the direction of incident light. and an electro-optical device for selectively reflecting incident light, in which one polarizer is arranged in mutually orthogonal relation, and a reflective surface is provided behind the latter polarizer.
JP6201383U 1970-12-04 1983-04-25 electro-optical device Pending JPS599327U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH17937/70 1970-12-04
CH1793770A CH532261A (en) 1970-12-04 1970-12-04 Light control cell

Publications (1)

Publication Number Publication Date
JPS599327U true JPS599327U (en) 1984-01-21

Family

ID=4429210

Family Applications (5)

Application Number Title Priority Date Filing Date
JP9825771A Pending JPS5113666B1 (en) 1970-12-04 1971-12-03
JP8957075A Pending JPS5133654A (en) 1970-12-04 1975-07-22 HENKOKONOHENKOMENSEIGYOHOHO
JP8680479A Pending JPS5552026A (en) 1970-12-04 1979-07-09 Electro optical unit
JP8680379A Pending JPS5552027A (en) 1970-12-04 1979-07-09 Electroooptical device for controlling plane of polarization of polarized light
JP6201383U Pending JPS599327U (en) 1970-12-04 1983-04-25 electro-optical device

Family Applications Before (4)

Application Number Title Priority Date Filing Date
JP9825771A Pending JPS5113666B1 (en) 1970-12-04 1971-12-03
JP8957075A Pending JPS5133654A (en) 1970-12-04 1975-07-22 HENKOKONOHENKOMENSEIGYOHOHO
JP8680479A Pending JPS5552026A (en) 1970-12-04 1979-07-09 Electro optical unit
JP8680379A Pending JPS5552027A (en) 1970-12-04 1979-07-09 Electroooptical device for controlling plane of polarization of polarized light

Country Status (9)

Country Link
JP (5) JPS5113666B1 (en)
AT (1) AT323821B (en)
AU (1) AU450702B2 (en)
CH (1) CH532261A (en)
DE (1) DE7047103U (en)
IL (1) IL38107A (en)
NO (1) NO133857C (en)
SE (1) SE420027B (en)
SU (1) SU694102A3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH589856A5 (en) * 1975-12-29 1977-07-15 Kern & Co Ag
GB2028527B (en) * 1978-06-08 1982-11-24 American Liquid Xtal Chem Liquid crystal displays
JPS6238682U (en) * 1985-08-01 1987-03-07
IT1316145B1 (en) * 2000-10-26 2003-03-28 Viptronic Srl PHOTOELECTRIC MEASUREMENT DEVICE EQUIPPED WITH A DIPOLARIZATION FILTER.
US7477330B2 (en) 2005-03-09 2009-01-13 3M Innovative Properties Company Automatic darkening filter with offset polarizers
US7637622B2 (en) 2005-10-11 2009-12-29 3M Innovative Properties Company Control of an automatic darkening filter
US8416355B2 (en) 2007-06-20 2013-04-09 Tc View Ltd. Directional filter device for controlling direction of maximal blocking of incident light
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
US8184215B2 (en) 2010-08-17 2012-05-22 Lc-Tec Displays Ab High-speed liquid crystal polarization modulator
US8023052B1 (en) 2010-08-17 2011-09-20 Lc-Tec Displays Ab High-speed liquid crystal polarization modulator
WO2013013662A1 (en) 2011-07-28 2013-01-31 Eads Deutschland Gmbh Light transmission control device and aircraft window furnished therewith, and a method for producing such a light transmission control device
WO2016044071A1 (en) 2014-09-15 2016-03-24 3M Innovative Properties Company Personal protective system tool communication adapter
DE102018213078B4 (en) * 2018-08-06 2020-06-18 Zf Friedrichshafen Ag Blackout device for an ADAS camera, control unit for an ADAS camera system, ADAS camera system and vehicle with an ADAS camera system
DE102019205012A1 (en) * 2019-04-08 2020-10-08 Zf Friedrichshafen Ag Control unit for a darkening device with variable light transmission for a vehicle window, darkening system for a vehicle window, method for darkening a vehicle window and computer program product for darkening a vehicle window
DE102020203585A1 (en) 2020-03-20 2021-09-23 Zf Friedrichshafen Ag Arrangement and filters for image processing, computer-implemented method for controlling such a filter, control device for an imaging sensor, camera for polarizing light and control system for a vehicle comprising such a camera

Also Published As

Publication number Publication date
AU3561571A (en) 1973-05-17
AT323821B (en) 1975-07-25
AU450702B2 (en) 1974-07-18
IL38107A (en) 1974-09-10
DE7047103U (en) 1972-09-28
SU694102A3 (en) 1979-10-25
NO133857C (en) 1976-07-07
CH532261A (en) 1972-12-31
SE420027B (en) 1981-09-07
NO133857B (en) 1976-03-29
JPS5113666B1 (en) 1976-05-01
JPS5552026A (en) 1980-04-16
JPS5552027A (en) 1980-04-16
SE7501996L (en) 1975-02-21
JPS5133654A (en) 1976-03-22

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