DE69211225T2 - Projektor - Google Patents

Projektor

Info

Publication number
DE69211225T2
DE69211225T2 DE69211225T DE69211225T DE69211225T2 DE 69211225 T2 DE69211225 T2 DE 69211225T2 DE 69211225 T DE69211225 T DE 69211225T DE 69211225 T DE69211225 T DE 69211225T DE 69211225 T2 DE69211225 T2 DE 69211225T2
Authority
DE
Germany
Prior art keywords
projector
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 - Fee Related
Application number
DE69211225T
Other languages
English (en)
Other versions
DE69211225D1 (de
DE69211225T3 (de
Inventor
Hideaki Mitsutake
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.)
Canon Inc
Original Assignee
Canon Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15522678&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69211225(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE69211225D1 publication Critical patent/DE69211225D1/de
Publication of DE69211225T2 publication Critical patent/DE69211225T2/de
Application granted granted Critical
Publication of DE69211225T3 publication Critical patent/DE69211225T3/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3167—Modulator illumination systems for polarizing the light beam
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
DE69211225T 1991-06-24 1992-06-23 Projektor Expired - Fee Related DE69211225T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3151627A JP3039570B2 (ja) 1991-06-24 1991-06-24 投写表示装置

Publications (3)

Publication Number Publication Date
DE69211225D1 DE69211225D1 (de) 1996-07-11
DE69211225T2 true DE69211225T2 (de) 1996-11-21
DE69211225T3 DE69211225T3 (de) 2002-12-19

Family

ID=15522678

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69211225T Expired - Fee Related DE69211225T3 (de) 1991-06-24 1992-06-23 Projektor

Country Status (4)

Country Link
US (1) US6157419A (de)
EP (1) EP0520369B2 (de)
JP (1) JP3039570B2 (de)
DE (1) DE69211225T3 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602732A3 (de) * 1992-12-17 1995-09-27 Philips Electronics Nv Optisches System mit Astigmatismuskompensation.
WO1994023540A1 (en) * 1993-03-31 1994-10-13 Hughes-Jvc Technology Corporation Single projection lens color projection system
JPH06337415A (ja) * 1993-05-28 1994-12-06 Fujitsu Ltd 液晶表示装置
TW412656B (en) * 1996-04-26 2000-11-21 Hitachi Ltd Liquid crystal display
GB9614887D0 (en) * 1996-07-16 1996-09-04 Philips Electronics Nv Colour interlaced image projection apparatus
WO2004081640A1 (ja) * 1996-10-30 2004-09-23 Toshiaki Hashizume 投写型表示装置
KR100485232B1 (ko) * 1998-02-09 2005-04-25 세이코 엡슨 가부시키가이샤 액정 패널, 이를 구비한 전자 기기 및 박막 트랜지스터 어레이 기판
US6331060B1 (en) 1998-10-08 2001-12-18 Sony Corporation Projection-type display device and method of adjustment thereof
TW460730B (en) * 1998-11-13 2001-10-21 Ind Tech Res Inst Dual board Liquid crystal projection display
US6721508B1 (en) 1998-12-14 2004-04-13 Tellabs Operations Inc. Optical line terminal arrangement, apparatus and methods
JP2000347177A (ja) * 1999-03-29 2000-12-15 Minolta Co Ltd 表示光学装置及びそれを用いたプロジェクター表示装置
JP2001100311A (ja) * 1999-07-23 2001-04-13 Seiko Epson Corp プロジェクタ
KR100542082B1 (ko) * 1999-12-20 2006-01-10 엘지.필립스 엘시디 주식회사 액정 셀 제조방법
TWI224694B (en) * 2000-12-21 2004-12-01 Ind Tech Res Inst Time-sequential color separator and liquid crystal projector using the same
JP2004062092A (ja) * 2002-07-31 2004-02-26 Canon Inc 色合成光学系、投射型表示光学系、投射型画像表示装置および画像表示システム
CN100437207C (zh) * 2004-03-31 2008-11-26 松下电器产业株式会社 颜色分离装置及摄像装置
JP2008209811A (ja) * 2007-02-28 2008-09-11 Hitachi Ltd 表示装置及び投写型照明装置
US8549552B2 (en) 2009-11-03 2013-10-01 The Nielsen Company (Us), Llc Methods and apparatus to monitor media exposure in vehicles
KR101683880B1 (ko) * 2009-12-15 2016-12-07 엘지이노텍 주식회사 전원 공급 장치

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083855A (en) * 1980-01-08 1992-01-28 Clark Noel A Surface stabilized ferroelectric liquid crystal devices
US4541691A (en) * 1983-12-27 1985-09-17 Tektronix, Inc. Electro-optic switching system using circularly polarized light
JPS6275418A (ja) * 1985-09-27 1987-04-07 Alps Electric Co Ltd 液晶素子
JPS62247333A (ja) * 1986-04-21 1987-10-28 Seiko Epson Corp 強誘電性液晶光学表示装置
JPS6315219A (ja) * 1986-07-08 1988-01-22 Seikosha Co Ltd 投写式液晶表示装置
US4786146A (en) * 1987-02-11 1988-11-22 Hughes Aircraft Company Color sequential illumination system for a liquid crystal light valve
JPS63216026A (ja) * 1987-03-05 1988-09-08 Ricoh Co Ltd 投写型液晶表示装置
US4989954A (en) * 1987-10-09 1991-02-05 Matsushita Electric Industrial Co., Ltd. Projection type liquid cyrstal display device
JPH02828A (ja) * 1987-12-02 1990-01-05 Matsushita Electric Ind Co Ltd 液晶表示装置
WO1990000756A1 (en) * 1988-07-14 1990-01-25 Seiko Epson Corporation Reflection-type liquid crystal electro-optical device and projection-type display device using the same
FR2642927B1 (fr) * 1989-02-07 1993-12-24 Thomson Csf Dispositif de visualisation a haute definition, couleur
JPH07104506B2 (ja) * 1989-03-14 1995-11-13 スタンレー電気株式会社 強誘電性液晶パネル
US5157523A (en) * 1989-03-29 1992-10-20 Matsushita Electric Industrial Co., Ltd. Projection type liquid crystal display unit including orthogonal phase plates
JP2893599B2 (ja) * 1989-10-05 1999-05-24 セイコーエプソン株式会社 偏光光源及び投写型表示装置
US5168381A (en) * 1989-10-30 1992-12-01 University Research Corporation Smectic liquid crystal devices using SSFLC and electroclinic effect based cells
US5107356A (en) * 1989-12-26 1992-04-21 General Electric Company Liquid crystal display device with birefringent films
JPH03217814A (ja) * 1990-01-24 1991-09-25 Canon Inc 液晶プロジェクター
JP2772582B2 (ja) * 1990-11-21 1998-07-02 キヤノン株式会社 光学変調素子
US5122887A (en) * 1991-03-05 1992-06-16 Sayett Group, Inc. Color display utilizing twisted nematic LCDs and selective polarizers
US5247378A (en) * 1991-06-07 1993-09-21 Peter Miller Optical retarder having means for determining the retardance of the cell corresponding to the sensed capacitance thereof

Also Published As

Publication number Publication date
EP0520369B1 (de) 1996-06-05
US6157419A (en) 2000-12-05
EP0520369A1 (de) 1992-12-30
JPH052149A (ja) 1993-01-08
JP3039570B2 (ja) 2000-05-08
DE69211225D1 (de) 1996-07-11
EP0520369B2 (de) 2002-05-02
DE69211225T3 (de) 2002-12-19

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8366 Restricted maintained after opposition proceedings
8339 Ceased/non-payment of the annual fee