ES2152944T3 - Circuito de lente de cristal liquido. - Google Patents

Circuito de lente de cristal liquido.

Info

Publication number
ES2152944T3
ES2152944T3 ES93902418T ES93902418T ES2152944T3 ES 2152944 T3 ES2152944 T3 ES 2152944T3 ES 93902418 T ES93902418 T ES 93902418T ES 93902418 T ES93902418 T ES 93902418T ES 2152944 T3 ES2152944 T3 ES 2152944T3
Authority
ES
Spain
Prior art keywords
liquid crystal
crystal lens
circuit
lens circuit
lens
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 - Lifetime
Application number
ES93902418T
Other languages
English (en)
Inventor
Hyman Abraham Moses Gross
Richard Anthony Mcmahon
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.)
Crystalens Ltd
Original Assignee
Crystalens Ltd
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 Crystalens Ltd filed Critical Crystalens Ltd
Application granted granted Critical
Publication of ES2152944T3 publication Critical patent/ES2152944T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Eyeglasses (AREA)

Abstract

Un circuito eléctrico dispuesto para controlar la densidad óptica de una lente de cristal líquido dependiendo de los niveles luz ambiental medidos por un detector de luz (1), a fin de ajustar la cantidad de luz transmitida a través de la lente, caracterizado por el hecho de que el circuito incluye medios (20, 21, 22) dispuestos de forma tal que el tiempo de respuesta variable del circuito a los cambios en luz ambiental pueda ser ajustado por el usuario de la lente.
ES93902418T 1992-01-20 1993-01-20 Circuito de lente de cristal liquido. Expired - Lifetime ES2152944T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929201124A GB9201124D0 (en) 1992-01-20 1992-01-20 Liquid crystal lens circuit

Publications (1)

Publication Number Publication Date
ES2152944T3 true ES2152944T3 (es) 2001-02-16

Family

ID=10708862

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93902418T Expired - Lifetime ES2152944T3 (es) 1992-01-20 1993-01-20 Circuito de lente de cristal liquido.

Country Status (7)

Country Link
US (1) US6433770B1 (es)
EP (1) EP0623227B1 (es)
AU (1) AU3360793A (es)
DE (1) DE69329491T2 (es)
ES (1) ES2152944T3 (es)
GB (1) GB9201124D0 (es)
WO (1) WO1993014435A1 (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9503858D0 (en) * 1995-02-25 1995-04-19 Central Research Lab Ltd Drive circuit
US7102602B2 (en) * 2001-09-18 2006-09-05 Alphamicron, Inc. Doubly curved optical device for eyewear and method for making the same
US7811482B2 (en) 2001-09-18 2010-10-12 Alphamicron, Inc. Curved optical device and method for making the same
US20040004608A1 (en) * 2002-07-03 2004-01-08 Kinpo Electronics, Inc. Display device for reducing power consumption and protecting user's eyes
KR100533643B1 (ko) * 2004-03-29 2005-12-06 삼성전기주식회사 가변 구형파 구동장치
RU2010105566A (ru) * 2007-07-20 2011-12-10 Раппапорт Фамили Инститют Фор Ресерч Ин Ве Медикал Саенсес (Il) Способ и система для защиты сетчатой оболочки глаза от поражений, вызываемых светом
ES2334960A1 (es) * 2008-06-11 2010-03-17 Universidad De Valladolid Dispositivo de ayuda y proteccion en la vision.
CN101778516A (zh) * 2010-03-18 2010-07-14 青岛海信电器股份有限公司 显示装置及其灯光控制方法
CN102707538A (zh) * 2012-05-28 2012-10-03 天马微电子股份有限公司 一种液晶透镜驱动电路及立体显示器
CH710211A2 (de) * 2014-10-06 2016-04-15 castelberg design GmbH Elektro-optisches Blendschutzglas, insbesondere für Schutz-, Sport- und Sonnenbrillen.
US10198094B1 (en) * 2017-08-02 2019-02-05 Microsoft Technology Licensing, Llc Active stylus
EP3521910A1 (en) 2018-02-06 2019-08-07 Essilor International Variable optical transmission device and associated control method
EP3985429A1 (en) * 2020-10-16 2022-04-20 Essilor International Dynamic control of transmission value

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2913571C2 (de) * 1979-04-04 1980-08-21 Josef 8000 Muenchen Pfanzelt Elektrisch-automatisch arbeitende Blendschutzvorrichtung
US4279474A (en) * 1980-03-25 1981-07-21 Belgorod Barry M Spectacle lens having continuously variable controlled density and fast response time
JPS59151286A (ja) * 1983-02-18 1984-08-29 株式会社アペックス 飲料自動販売機
JPS60139545A (ja) * 1983-12-27 1985-07-24 Nippon Denso Co Ltd 車両用防眩型反射鏡駆動装置
US4560239A (en) * 1984-02-29 1985-12-24 Amnon Katz Liquid crystal active light shield
GB2190516B (en) * 1986-05-16 1990-01-31 Cd Marketing Ltd Day/night mirror
CA1274297A (en) * 1986-07-18 1990-09-18 Edward A. Gahan Rearview mirror control circuit
US5015086A (en) * 1989-04-17 1991-05-14 Seiko Epson Corporation Electronic sunglasses
JPH04134320A (ja) * 1990-09-26 1992-05-08 Seiko Epson Corp 電子サングラス
US5285060A (en) * 1992-12-15 1994-02-08 Donnelly Corporation Display for automatic rearview mirror
GB9314435D0 (en) * 1993-07-13 1993-08-25 Mcmurtrie Robert Key-start switch security case
US5742131A (en) * 1993-11-23 1998-04-21 The Watt Stopper Dimmable ballast control circuit
US5402040A (en) * 1993-11-23 1995-03-28 The Watt Stopper Dimmable ballast control circuit

Also Published As

Publication number Publication date
EP0623227A1 (en) 1994-11-09
EP0623227B1 (en) 2000-09-27
AU3360793A (en) 1993-08-03
DE69329491T2 (de) 2001-05-10
DE69329491D1 (de) 2000-11-02
US6433770B1 (en) 2002-08-13
GB9201124D0 (en) 1992-03-11
WO1993014435A1 (en) 1993-07-22
US20020044112A1 (en) 2002-04-18

Similar Documents

Publication Publication Date Title
ES2152944T3 (es) Circuito de lente de cristal liquido.
NL192226B (nl) Optische vloeibaar-kristalweergeefinrichting.
JPS5433683A (en) Air seal mounting for light emitting element
ATA252182A (de) Brillenglas mit hohem positiven brechwert
JPS6418133A (en) Display medium and device
JPS5217817A (en) Light measure device fot the single lens reflex camera
IT7824756A0 (it) Struttura portalenti atta all'impiego con lenti da vista.
JPS5642389A (en) Light semiconductor light emitting device
JPS52134749A (en) Optical transmitter
JPS5413332A (en) Display device of focal point of camera
DK585876A (da) Indretning til indforing af lysmerker i stralegangen i natsynsapparater
JPS536516A (en) Optical recording and reproducing unit
JPS5768811A (en) Beam condensing device
JPS5348393A (en) Optical system for varying focal point refractive power along one main line while maintaining constant focal point refractive power along another main line
JPS5329003A (en) Optical fiber trans mission system
JPS53132359A (en) Rotary polyhedral mirror device
JPS5421747A (en) Optical distributor
JPS5437596A (en) Semiconductor luminous device
JPS52115694A (en) Display element
SU596899A1 (ru) Устройство дл дискретного светового потока объектива
JPS5285813A (en) Single lens reflex camera
GB564302A (en) Improvements in devices for photographing stereoscopic pairs of pictures through thesingle lens combination of a camera
JPS5314588A (en) Optical device
JPS5432340A (en) Optical circuit element
JPS52111739A (en) Optical switch array of thin film

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 623227

Country of ref document: ES