DE69912674T2 - Projektionsobjektiv und Verfahren zur Fokussierung - Google Patents

Projektionsobjektiv und Verfahren zur Fokussierung Download PDF

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Publication number
DE69912674T2
DE69912674T2 DE69912674T DE69912674T DE69912674T2 DE 69912674 T2 DE69912674 T2 DE 69912674T2 DE 69912674 T DE69912674 T DE 69912674T DE 69912674 T DE69912674 T DE 69912674T DE 69912674 T2 DE69912674 T2 DE 69912674T2
Authority
DE
Germany
Prior art keywords
lens
lens group
projection
focal length
optical path
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
DE69912674T
Other languages
German (de)
English (en)
Other versions
DE69912674D1 (de
Inventor
Yasuyuki Shinagawa-ku Sugano
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE69912674D1 publication Critical patent/DE69912674D1/de
Publication of DE69912674T2 publication Critical patent/DE69912674T2/de
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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Lenses (AREA)
  • Liquid Crystal (AREA)
DE69912674T 1998-04-24 1999-04-22 Projektionsobjektiv und Verfahren zur Fokussierung Expired - Fee Related DE69912674T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10115204A JPH11305117A (ja) 1998-04-24 1998-04-24 投射レンズ及び投射レンズの焦点調整方法
JP11520498 1998-04-24

Publications (2)

Publication Number Publication Date
DE69912674D1 DE69912674D1 (de) 2003-12-18
DE69912674T2 true DE69912674T2 (de) 2004-09-23

Family

ID=14656942

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69912674T Expired - Fee Related DE69912674T2 (de) 1998-04-24 1999-04-22 Projektionsobjektiv und Verfahren zur Fokussierung

Country Status (7)

Country Link
US (1) US6144503A (enExample)
EP (1) EP0952474B1 (enExample)
JP (1) JPH11305117A (enExample)
KR (1) KR100591782B1 (enExample)
CA (1) CA2269484C (enExample)
DE (1) DE69912674T2 (enExample)
ES (1) ES2209331T3 (enExample)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001343706A (ja) * 2000-05-31 2001-12-14 Sony Corp 映像表示装置
JP4224938B2 (ja) * 2000-10-17 2009-02-18 コニカミノルタオプト株式会社 斜め投影光学系
JP2003015033A (ja) 2001-06-28 2003-01-15 Minolta Co Ltd 投射光学系
KR100542760B1 (ko) * 2001-07-31 2006-01-20 엘지전자 주식회사 프로젝션 시스템의 투사렌즈계
EP1422543A4 (en) * 2001-08-28 2005-06-29 Sony Corp PROJECTION LENS
KR100441591B1 (ko) * 2002-07-02 2004-07-23 삼성전자주식회사 영상투사장치의 투사렌즈계
US7175287B2 (en) * 2002-08-16 2007-02-13 Infocus Corporation Wide angle projection lens
US7009765B2 (en) * 2002-08-16 2006-03-07 Infocus Corporation Wide angle lens system having a distorted intermediate image
US6896375B2 (en) * 2002-08-16 2005-05-24 Infocus Corporation Rear projection display device having multiple mirrors that are substantially parallel to a screen
US7150537B2 (en) * 2002-08-16 2006-12-19 Infocus Corporation Projection television device and screen
US7102820B2 (en) * 2002-08-16 2006-09-05 Infocus Corporation Flat valley fresnel lens for a display device
US7341353B2 (en) * 2002-08-16 2008-03-11 Infocus Corporation Variable fresnel screen for use in projection device
US6853493B2 (en) 2003-01-07 2005-02-08 3M Innovative Properties Company Folded, telecentric projection lenses for use with pixelized panels
US6765731B1 (en) 2003-03-28 2004-07-20 3M Innovative Properties Company Low element count projection lenses for use with pixelized panels
JP2004326079A (ja) * 2003-04-10 2004-11-18 Seiko Epson Corp 投射レンズ及び投写型画像表示装置
JP2004354437A (ja) * 2003-05-27 2004-12-16 Fuji Photo Optical Co Ltd リアプロジェクション装置
US7080910B2 (en) * 2003-08-19 2006-07-25 Infocus Corporation Method and system for a thermal architecture and user adjustable keystone in a display device
JP4196815B2 (ja) * 2003-11-28 2008-12-17 株式会社日立製作所 背面投写型映像表示装置
EP1698182A1 (en) * 2003-12-16 2006-09-06 Koninklijke Philips Electronics N.V. Rotatable projection lens for rear-projection applications
US7259912B2 (en) 2004-01-06 2007-08-21 Infocus Corporation Fresnel lens having reduced distortions
JP4333401B2 (ja) 2004-02-19 2009-09-16 セイコーエプソン株式会社 小型ズームレンズ
US7116498B2 (en) * 2004-03-12 2006-10-03 Sony Corporation Projection optical system and image projection apparatus
WO2005124419A1 (ja) * 2004-06-17 2005-12-29 Nikon Corporation プロジェクターレンズ及びこのプロジェクターレンズを用いたプロジェクター装置
JP2006047948A (ja) * 2004-06-29 2006-02-16 Konica Minolta Opto Inc 投影光学系およびそれを備えた投影装置
WO2006068363A1 (en) * 2004-12-21 2006-06-29 Lg Electronics Inc. Thin type projector
KR100672506B1 (ko) * 2004-12-22 2007-01-24 엘지전자 주식회사 프로젝터의 투사 장치
JP4823641B2 (ja) * 2005-10-19 2011-11-24 富士フイルム株式会社 投写レンズおよびこれを用いた投写型表示装置
JP2007225776A (ja) * 2006-02-22 2007-09-06 Konica Minolta Opto Inc 画像投影装置
TWI284747B (en) * 2006-05-18 2007-08-01 Young Optics Inc Fixed-focus lens
KR100862013B1 (ko) 2007-01-23 2008-10-07 정승태 렌즈를 사용하는 광학장치의 결상면 밝기 보정용 필터
JP2008203604A (ja) * 2007-02-21 2008-09-04 Hitachi Ltd 投射型映像表示装置
TW200903026A (en) * 2007-07-12 2009-01-16 Young Optics Inc Fixed-focus lens
US7605988B2 (en) * 2007-07-23 2009-10-20 Angstrom, Inc. Compact image taking lens system with a lens-surfaced prism
JP5009726B2 (ja) * 2007-09-03 2012-08-22 富士フイルム株式会社 投影レンズおよびこれを用いた投写型表示装置
US20090185067A1 (en) * 2007-12-21 2009-07-23 Stereo Display, Inc. Compact automatic focusing camera
JP5358280B2 (ja) * 2009-05-12 2013-12-04 日立コンシューマエレクトロニクス株式会社 投写ボード装置、及びこれに用いる透過型スクリーン
KR20110120590A (ko) * 2010-04-29 2011-11-04 삼성전자주식회사 광학 시스템 및 이를 적용한 영상투사장치
TWI427323B (zh) * 2011-02-18 2014-02-21 Young Optics Inc 投影鏡頭與投影裝置
JP5652349B2 (ja) * 2011-07-25 2015-01-14 株式会社リコー 広角レンズおよび全天球型撮像装置
CN103439783B (zh) * 2011-11-15 2017-09-12 深圳市亿思达科技集团有限公司 一种高分辩率广角投影镜头及投影仪
JP5487251B2 (ja) * 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 投写型映像表示装置および投写光学ユニット
US10746994B2 (en) * 2014-08-07 2020-08-18 Microsoft Technology Licensing, Llc Spherical mirror having a decoupled aspheric
TWI614517B (zh) 2017-01-04 2018-02-11 大立光電股份有限公司 影像擷取系統、取像裝置及電子裝置

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
DE3119993A1 (de) * 1981-05-20 1982-12-16 Rolf Dr.-Ing. 7888 Rheinfelden Müller "weitwinkelobjektiv"
US5278698A (en) * 1990-07-06 1994-01-11 Asahi Kogaku Kogyo Kabushiki Kaisha Magnifying projecting lens
JPH04174812A (ja) * 1990-11-08 1992-06-23 Canon Inc レトロフォーカス型レンズ
US5390048A (en) * 1991-12-02 1995-02-14 Matsushita Electric Industrial Co., Ltd. Projection lens assembly and projection display apparatus
US5296967A (en) * 1992-03-02 1994-03-22 U.S. Precision Lens Incorporated High speed wide angle projection TV lens system
JP3433266B2 (ja) * 1993-06-15 2003-08-04 三菱電機株式会社 投写レンズ
KR100210247B1 (ko) * 1996-01-24 1999-07-15 윤종용 광화각 액정 프로젝션 렌즈 시스템
US5870228A (en) * 1996-05-24 1999-02-09 U.S. Precision Lens Inc. Projection lenses having larger back focal length to focal length ratios

Also Published As

Publication number Publication date
KR19990083411A (ko) 1999-11-25
EP0952474B1 (en) 2003-11-12
CA2269484C (en) 2007-10-09
ES2209331T3 (es) 2004-06-16
EP0952474A2 (en) 1999-10-27
EP0952474A3 (en) 2001-10-17
DE69912674D1 (de) 2003-12-18
CA2269484A1 (en) 1999-10-24
JPH11305117A (ja) 1999-11-05
KR100591782B1 (ko) 2006-06-23
US6144503A (en) 2000-11-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee