GB9926818D0 - Rear-type liquid crystal display projection apparatus - Google Patents

Rear-type liquid crystal display projection apparatus

Info

Publication number
GB9926818D0
GB9926818D0 GBGB9926818.7A GB9926818A GB9926818D0 GB 9926818 D0 GB9926818 D0 GB 9926818D0 GB 9926818 A GB9926818 A GB 9926818A GB 9926818 D0 GB9926818 D0 GB 9926818D0
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
crystal display
type liquid
projection apparatus
display 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.)
Granted
Application number
GBGB9926818.7A
Other versions
GB2343966B (en
GB2343966A (en
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of GB9926818D0 publication Critical patent/GB9926818D0/en
Publication of GB2343966A publication Critical patent/GB2343966A/en
Application granted granted Critical
Publication of GB2343966B publication Critical patent/GB2343966B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/10—Projectors with built-in or built-on screen
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Projection Apparatus (AREA)
  • Lenses (AREA)
GB9926818A 1998-11-17 1999-11-15 Bent optical projection lens unit for a liquid crystal display projection apparatus Expired - Fee Related GB2343966B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980049220A KR100292356B1 (en) 1998-11-17 1998-11-17 Rear type LCD projector

Publications (3)

Publication Number Publication Date
GB9926818D0 true GB9926818D0 (en) 2000-01-12
GB2343966A GB2343966A (en) 2000-05-24
GB2343966B GB2343966B (en) 2001-06-20

Family

ID=19558608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9926818A Expired - Fee Related GB2343966B (en) 1998-11-17 1999-11-15 Bent optical projection lens unit for a liquid crystal display projection apparatus

Country Status (5)

Country Link
JP (1) JP2000187274A (en)
KR (1) KR100292356B1 (en)
CN (1) CN1254101A (en)
DE (1) DE19955332A1 (en)
GB (1) GB2343966B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020002966A (en) * 2000-06-30 2002-01-10 구자홍 Projection Lens System of Liquid Crystal Display Projector
US6634756B1 (en) * 2002-06-27 2003-10-21 Koninklijke Philips Electronics N.V. Beam-splitter folded path for rear projection displays
JP4671588B2 (en) 2003-08-11 2011-04-20 株式会社日立製作所 Projection optical unit, projection color image display device, and rear projection color image display device using the same
JP4734827B2 (en) * 2003-11-28 2011-07-27 株式会社日立製作所 Projection optical unit
JP4694806B2 (en) * 2004-09-01 2011-06-08 富士フイルム株式会社 Rear projector
JP2006309121A (en) * 2005-03-30 2006-11-09 Fujinon Corp Positioning structure
US7929223B2 (en) 2005-09-30 2011-04-19 Fujinon Corporation Lens block, lens, holder for holding the lens block, and projector using the lens holder
JP4815388B2 (en) 2007-04-26 2011-11-16 富士フイルム株式会社 Projection lens unit and manufacturing method thereof
JP5487251B2 (en) * 2012-07-06 2014-05-07 日立コンシューマエレクトロニクス株式会社 Projection-type image display device and projection optical unit
CN103926675B (en) 2013-01-14 2017-03-01 扬明光学股份有限公司 Image restructuring camera lens and projection arrangement
KR101483976B1 (en) * 2014-04-28 2015-01-19 주식회사 세코닉스 Projection system of ultra short throw projector using plane mirror
CN109991737B (en) * 2017-12-29 2024-06-14 深圳点石创新科技有限公司 Optical projection system
CN108375865A (en) * 2018-05-28 2018-08-07 长沙创荣电子科技有限公司 Single chip type liquid crystal projector
CN115691383B (en) * 2022-09-27 2023-12-22 惠科股份有限公司 Display device and image display method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526442A (en) * 1981-01-28 1985-07-02 U.S. Precision Lens, Inc. Compact projection lens
US4620773A (en) * 1982-05-15 1986-11-04 Hitachi, Ltd. Projection lens for projection television
JPS6253416U (en) * 1985-09-21 1987-04-02
US5442484A (en) * 1992-01-06 1995-08-15 Mitsubishi Denki Kabushiki Kaisha Retro-focus type lens and projection-type display apparatus
US5692820A (en) * 1992-02-20 1997-12-02 Kopin Corporation Projection monitor
JP3320862B2 (en) * 1992-11-26 2002-09-03 旭光学工業株式会社 Pupil conjugate coupling device for projection optical system
GB9503859D0 (en) * 1995-02-25 1995-04-19 Philips Electronics Uk Ltd Projection lenses for light valve projection systems
KR100210247B1 (en) * 1996-01-24 1999-07-15 윤종용 An optic angle lcd projection lens system
JPH1031425A (en) * 1996-07-17 1998-02-03 Canon Inc Projection type display device

Also Published As

Publication number Publication date
JP2000187274A (en) 2000-07-04
CN1254101A (en) 2000-05-24
KR20000032673A (en) 2000-06-15
DE19955332A1 (en) 2000-05-31
GB2343966B (en) 2001-06-20
KR100292356B1 (en) 2001-06-01
GB2343966A (en) 2000-05-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111115