DE69431399T2 - Dichroitisches immersionssystem für videoprojektor mit einem einzelnen projektionsobjektiv - Google Patents

Dichroitisches immersionssystem für videoprojektor mit einem einzelnen projektionsobjektiv

Info

Publication number
DE69431399T2
DE69431399T2 DE69431399T DE69431399T DE69431399T2 DE 69431399 T2 DE69431399 T2 DE 69431399T2 DE 69431399 T DE69431399 T DE 69431399T DE 69431399 T DE69431399 T DE 69431399T DE 69431399 T2 DE69431399 T2 DE 69431399T2
Authority
DE
Germany
Prior art keywords
dichroitic
projection lens
video projector
immersion system
single projection
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
DE69431399T
Other languages
English (en)
Other versions
DE69431399D1 (de
Inventor
R Henderson
J Gagnon
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Application granted granted Critical
Publication of DE69431399D1 publication Critical patent/DE69431399D1/de
Publication of DE69431399T2 publication Critical patent/DE69431399T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
DE69431399T 1993-04-30 1994-03-30 Dichroitisches immersionssystem für videoprojektor mit einem einzelnen projektionsobjektiv Expired - Lifetime DE69431399T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/055,637 US5621551A (en) 1993-04-30 1993-04-30 Immersed dichroic system for single projection lens liquid crystal video projector
PCT/US1994/003467 WO1994025894A1 (en) 1993-04-30 1994-03-30 Immersed dichroic system for single projection lens video projector

Publications (2)

Publication Number Publication Date
DE69431399D1 DE69431399D1 (de) 2002-10-24
DE69431399T2 true DE69431399T2 (de) 2003-05-15

Family

ID=21999178

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69431399T Expired - Lifetime DE69431399T2 (de) 1993-04-30 1994-03-30 Dichroitisches immersionssystem für videoprojektor mit einem einzelnen projektionsobjektiv

Country Status (5)

Country Link
US (1) US5621551A (de)
EP (1) EP0696361B1 (de)
JP (1) JPH08510335A (de)
DE (1) DE69431399T2 (de)
WO (1) WO1994025894A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986814A (en) * 1996-11-20 1999-11-16 Hughes-Jvc Technology Corporation High contrast, compact, full-color polarizer and color beam splitter
US6005692A (en) * 1997-05-29 1999-12-21 Stahl; Thomas D. Light-emitting diode constructions
US5943168A (en) * 1997-09-11 1999-08-24 Hughes-Jvc Technology Corporation Sawtooth interleave polarization combiner
US6273568B1 (en) * 1998-02-05 2001-08-14 Canon Kabushiki Kaisha Projection apparatus
JP2000227578A (ja) * 1998-11-12 2000-08-15 Fujitsu Ltd 投写型表示装置
US6535334B2 (en) * 2001-04-05 2003-03-18 Koninklijke Philips Electronics N.V. Polarization conversion system for projection displays resistant to damage from heat and light
CN101506573B (zh) * 2006-09-26 2011-01-12 松下电器产业株式会社 面状照明装置及使用该面状照明装置的液晶显示装置
KR101537836B1 (ko) 2008-05-15 2015-07-17 쓰리엠 이노베이티브 프로퍼티즈 컴파니 광학 요소 및 색상 조합기
WO2010059412A2 (en) 2008-11-19 2010-05-27 3M Innovative Properties Company Polarization converting color combiner
CN102282497B (zh) 2008-11-19 2014-07-02 3M创新有限公司 高耐久性合色器
US9164247B2 (en) * 2011-07-28 2015-10-20 Source Photonics, Inc. Apparatuses for reducing the sensitivity of an optical signal to polarization and methods of making and using the same
US9692522B2 (en) * 2015-04-15 2017-06-27 Cisco Technology, Inc. Multi-channel optical receiver or transmitter with a ball lens

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127322A (en) * 1975-12-05 1978-11-28 Hughes Aircraft Company High brightness full color image light valve projection 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
US4836649A (en) * 1985-07-12 1989-06-06 Hughes Aircraft Company Optical layout for a three light valve full-color projector employing a dual relay lens system and a single projection lens
US4749259A (en) * 1987-05-15 1988-06-07 Hughes Aircraft Company Liquid crystal image projection with multicolor prepolarizing system
DE3720375A1 (de) * 1987-06-19 1988-12-29 Fraunhofer Ges Forschung Projektionsvorrichtung
US4943155A (en) * 1987-12-22 1990-07-24 Hughes Aircraft Company Color projection system with a color correction wedge
DE68927634T2 (de) * 1988-07-14 1997-05-28 Seiko Epson Corp Reflektive elektrooptische flüssigkristallvorrichtung und projektionsanzeigevorrichtung unter verwendung derselben
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
US5231431A (en) * 1989-11-29 1993-07-27 Canon Kabushiki Kaisha Projection type display apparatus
JP2915467B2 (ja) * 1990-02-22 1999-07-05 キヤノン株式会社 液晶プロジェクタ
JP2681304B2 (ja) * 1990-05-16 1997-11-26 日本ビクター株式会社 表示装置
US5268775A (en) * 1991-02-19 1993-12-07 Hughes-Jvc Technology Corporation Contrast enhancement and ghost elimination, for reflective light valve system
US5309188A (en) * 1993-05-21 1994-05-03 David Sarnoff Research Center, Inc. Coupling prism assembly and projection system using the same

Also Published As

Publication number Publication date
WO1994025894A1 (en) 1994-11-10
EP0696361B1 (de) 2002-09-18
DE69431399D1 (de) 2002-10-24
US5621551A (en) 1997-04-15
JPH08510335A (ja) 1996-10-29
EP0696361A4 (de) 1997-11-12
EP0696361A1 (de) 1996-02-14

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