IL75517A0 - Improved optical system for three color liquid crystal light valve image projection system - Google Patents

Improved optical system for three color liquid crystal light valve image projection system

Info

Publication number
IL75517A0
IL75517A0 IL75517A IL7551785A IL75517A0 IL 75517 A0 IL75517 A0 IL 75517A0 IL 75517 A IL75517 A IL 75517A IL 7551785 A IL7551785 A IL 7551785A IL 75517 A0 IL75517 A0 IL 75517A0
Authority
IL
Israel
Prior art keywords
liquid crystal
light valve
image projection
crystal light
color liquid
Prior art date
Application number
IL75517A
Other languages
English (en)
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 IL75517A0 publication Critical patent/IL75517A0/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • H04N9/315Modulator illumination systems
    • H04N9/3167Modulator illumination systems for polarizing the light beam

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
IL75517A 1984-06-20 1985-06-13 Improved optical system for three color liquid crystal light valve image projection system IL75517A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/622,528 US4715684A (en) 1984-06-20 1984-06-20 Optical system for three color liquid crystal light valve image projection system

Publications (1)

Publication Number Publication Date
IL75517A0 true IL75517A0 (en) 1985-10-31

Family

ID=24494521

Family Applications (1)

Application Number Title Priority Date Filing Date
IL75517A IL75517A0 (en) 1984-06-20 1985-06-13 Improved optical system for three color liquid crystal light valve image projection system

Country Status (8)

Country Link
US (1) US4715684A (ro)
EP (1) EP0185737B1 (ro)
JP (2) JPS61502494A (ro)
KR (1) KR900000333B1 (ro)
DE (1) DE3579226D1 (ro)
IL (1) IL75517A0 (ro)
NO (1) NO171040C (ro)
WO (1) WO1986000485A1 (ro)

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USRE36725E (en) * 1984-10-22 2000-06-06 Seiko Epson Corporation Projection-type display device
JPH0664419B2 (ja) * 1987-08-18 1994-08-22 セイコーエプソン株式会社 投射型表示装置
US5241407A (en) * 1984-10-22 1993-08-31 Seiko Epson Corporation Projection-type display device
US4904061A (en) * 1984-10-22 1990-02-27 Seiko Epson Corporation Projection-type liquid crystal display device with even color
US5073013A (en) * 1984-10-22 1991-12-17 Seiko Epson Corporation Projection-type display device
US4781426A (en) * 1986-09-30 1988-11-01 Itt Defense Communications, A Division Of Itt Corporation Optical fiber collimator/switch including liquid crystal polarizing material
US4842374A (en) * 1987-07-27 1989-06-27 Hughes Aircraft Company Unitary prepolarizing prism assembly for a four color liquid crystal light valve image projector
US4824214A (en) * 1987-07-27 1989-04-25 Hughes Aircraft Company Unitary prepolarizing prism assembly for a four color liquid crystal light valve image projector
US4807978A (en) * 1987-09-10 1989-02-28 Hughes Aircraft Company Color display device and method using holographic lenses
US5097323A (en) * 1988-01-25 1992-03-17 Casio Computer Co., Ltd. Liquid crystal projector
US5042921A (en) * 1988-10-25 1991-08-27 Casio Computer Co., Ltd. Liquid crystal display apparatus
JPH02153336A (ja) * 1988-12-05 1990-06-13 Sharp Corp 投影型液晶表示装置
US5185712A (en) * 1989-06-30 1993-02-09 Casio Computer Co., Ltd. Viewfinder and image display/pickup apparatus using liquid crystal
DE69030038T2 (de) * 1989-08-31 1997-06-12 Asahi Glass Co Ltd Flüssigkristallfarbprojektionsanzeigevorrichtung
JP2575558Y2 (ja) * 1990-12-26 1998-07-02 エルジー電子株式会社 液晶投写形ディスプレイの光学系構造
US5111315A (en) * 1991-02-14 1992-05-05 Hughes Aircraft Company Optical system for illuminating a light valve
JPH05158012A (ja) * 1991-12-10 1993-06-25 Pioneer Electron Corp 液晶プロジェクタ
US5311217A (en) * 1991-12-23 1994-05-10 Xerox Corporation Variable attenuator for dual beams
US5347644A (en) * 1992-06-11 1994-09-13 Sedlmayr Steven R Three-dimensional image display device and systems and methods for implementation thereof
US5347433A (en) * 1992-06-11 1994-09-13 Sedlmayr Steven R Collimated beam of light and systems and methods for implementation thereof
US5612741A (en) * 1993-11-05 1997-03-18 Curtis Mathes Marketing Corporation Video billboard
JP3738505B2 (ja) * 1996-05-10 2006-01-25 株式会社ニコン 投射型表示装置
US6082863A (en) * 1996-08-16 2000-07-04 Raychem Corporation Color projection prism
US6005692A (en) * 1997-05-29 1999-12-21 Stahl; Thomas D. Light-emitting diode constructions
JP3622500B2 (ja) * 1998-05-20 2005-02-23 株式会社富士通ゼネラル 液晶プロジェクタ装置
IL148804A (en) * 2002-03-21 2007-02-11 Yaacov Amitai Optical device
JP2004078159A (ja) * 2002-06-20 2004-03-11 Fuji Photo Optical Co Ltd 投写型表示装置
US10073264B2 (en) 2007-08-03 2018-09-11 Lumus Ltd. Substrate-guide optical device
US7230768B2 (en) * 2005-04-27 2007-06-12 Christie Digital Systems Inc. Ultra-bright light engine for projection displays
US10048499B2 (en) 2005-11-08 2018-08-14 Lumus Ltd. Polarizing optical system
JP5111786B2 (ja) * 2006-03-31 2013-01-09 株式会社吉野工業所 芳香剤容器
US8804111B2 (en) * 2007-10-04 2014-08-12 Kla-Tencor Corporation Multichip CCD camera inspection system
IL232197B (en) 2014-04-23 2018-04-30 Lumus Ltd Compact head-up display system
KR101688873B1 (ko) * 2014-09-03 2016-12-23 고려대학교 산학협력단 광 간섭 단층 영상 촬영 장치
IL235642B (en) 2014-11-11 2021-08-31 Lumus Ltd A compact head-up display system is protected by an element with a super-thin structure
WO2018065975A1 (en) 2016-10-09 2018-04-12 Lumus Ltd Aperture multiplier using a rectangular waveguide
AU2017356702B2 (en) 2016-11-08 2021-04-15 Lumus Ltd Light-guide device with optical cutoff edge and corresponding production methods
WO2018154576A1 (en) 2017-02-22 2018-08-30 Lumus Ltd. Light guide optical assembly
CN117572644A (zh) 2017-03-22 2024-02-20 鲁姆斯有限公司 用于生产光导光学元件的方法和光学系统
IL251645B (en) 2017-04-06 2018-08-30 Lumus Ltd Waveguide and method of production
US10551544B2 (en) 2018-01-21 2020-02-04 Lumus Ltd. Light-guide optical element with multiple-axis internal aperture expansion
EP3791224B1 (en) 2018-05-23 2022-08-31 Lumus Ltd. Optical system including light-guide optical element with partially-reflective internal surfaces
MX2021002813A (es) 2018-09-09 2021-05-12 Lumus Ltd Sistemas opticos que incluyen elementos opticos de guia de luz con expansion bidimensional.
US10983264B2 (en) 2019-01-24 2021-04-20 Lumus Ltd. Optical systems including light-guide optical elements with two-dimensional expansion
WO2020261279A1 (en) 2019-06-27 2020-12-30 Lumus Ltd. Apparatus and methods for eye tracking based on eye imaging via a light-guide optical element
EP3994517B1 (en) 2019-07-04 2023-09-13 Lumus Ltd. Image waveguide with symmetric beam multiplication
MX2022006238A (es) 2019-12-05 2022-06-22 Lumus Ltd Elemento optico de guia de luz que utiliza reflectores parciales complementarios recubiertos y elemento optico de guia de luz con dispersion de luz reducida.
KR20240059655A (ko) 2019-12-08 2024-05-07 루머스 리미티드 소형 이미지 프로젝터를 갖는 광학 시스템
WO2021137228A1 (en) 2019-12-30 2021-07-08 Lumus Ltd. Optical systems including light-guide optical elements with two-dimensional expansion
CN117784310A (zh) 2020-05-24 2024-03-29 鲁姆斯有限公司 制造复合光导光学元件的方法、光学结构
DE202021104723U1 (de) 2020-09-11 2021-10-18 Lumus Ltd. An ein optisches Lichtleiterelement gekoppelter Bildprojektor
AU2022226493B2 (en) 2021-02-25 2023-07-27 Lumus Ltd. Optical aperture multipliers having a rectangular waveguide
IL313859A (en) 2021-03-01 2024-08-01 Lumus Ltd An optical system with a compact coupling from a projector into a waveguide
WO2022246018A1 (en) 2021-05-19 2022-11-24 Lumus Ltd. Active optical engine
KR102676604B1 (ko) 2021-07-04 2024-06-18 루머스 리미티드 시야의 다양한 부분을 제공하는 적층형 도광 요소를 갖는 디스플레이
WO2023026266A1 (en) 2021-08-23 2023-03-02 Lumus Ltd. Methods of fabrication of compound light-guide optical elements having embedded coupling-in reflectors

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US2422376A (en) * 1943-11-27 1947-06-17 Bausch & Lomb Light beam divider
US2669902A (en) * 1950-09-26 1954-02-23 Gen Electric Binocular optical system
US3521944A (en) * 1967-06-14 1970-07-28 Fuji Photo Optical Co Ltd Relay optical system for color television camera having four light paths
JPS51114822A (en) * 1975-04-02 1976-10-08 Fuji Photo Optical Co Ltd Color tv camera color separation optical system
JPS5465048A (en) * 1977-11-02 1979-05-25 Minolta Camera Co Ltd Reflection type optical system of television projector
US4415348A (en) * 1980-05-29 1983-11-15 Zenith Radio Corporation Method of manufacture for projection television system
US4425028A (en) * 1981-12-28 1984-01-10 Hughes Aircraft Company High efficiency optical tank for three color liquid crystal light valve image projection with color selective prepolarization and single projection lens
US4500172A (en) * 1981-12-28 1985-02-19 Hughes Aircraft Company Two color liquid crystal light valve image projection system with single prepolarizer
CA1218546A (en) * 1981-12-28 1987-03-03 Robert T. Carson High efficiency optical system for three-color liquid crystal light valve image projection with color selective prepolarization
US4544237A (en) * 1981-12-28 1985-10-01 Hughes Aircraft Company High efficiency optical tank for two-color liquid crystal light valve image projection with color selective prepolarization
US4464019A (en) * 1981-12-28 1984-08-07 Hughes Aircraft Company Two-color liquid crystal light valve image projection system with color selective prepolarizers in single optical tank
US4464018A (en) * 1981-12-28 1984-08-07 Hughes Aircraft Company Liquid crystal light valve image projection system with color selective prepolarization and blue mirror
US4571628A (en) * 1984-03-23 1986-02-18 Thirstol Thornton Portable video viewing assembly

Also Published As

Publication number Publication date
DE3579226D1 (de) 1990-09-20
KR900000333B1 (ko) 1990-01-25
EP0185737A1 (en) 1986-07-02
EP0185737B1 (en) 1990-08-16
WO1986000485A1 (en) 1986-01-16
JPH0331714U (ro) 1991-03-27
NO171040C (no) 1993-01-13
KR860700201A (ko) 1986-03-31
US4715684A (en) 1987-12-29
JPH0535383Y2 (ro) 1993-09-08
NO860631L (no) 1986-02-19
JPS61502494A (ja) 1986-10-30
NO171040B (no) 1992-10-05

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