TW200600951A - Projector with automatic focus adjustment - Google Patents

Projector with automatic focus adjustment

Info

Publication number
TW200600951A
TW200600951A TW094119260A TW94119260A TW200600951A TW 200600951 A TW200600951 A TW 200600951A TW 094119260 A TW094119260 A TW 094119260A TW 94119260 A TW94119260 A TW 94119260A TW 200600951 A TW200600951 A TW 200600951A
Authority
TW
Taiwan
Prior art keywords
test pattern
projector
unit
focal point
projection surface
Prior art date
Application number
TW094119260A
Other languages
English (en)
Other versions
TWI281593B (en
Inventor
Morio Matsumoto
Shiki Furui
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Publication of TW200600951A publication Critical patent/TW200600951A/zh
Application granted granted Critical
Publication of TWI281593B publication Critical patent/TWI281593B/zh

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
    • H04N9/317—Convergence or focusing systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • 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
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Automatic Focus Adjustment (AREA)
TW094119260A 2004-06-23 2005-06-10 Projector with automatic focus adjustment TWI281593B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004184391A JP3925513B2 (ja) 2004-06-23 2004-06-23 プロジェクタの自動フォーカス調整

Publications (2)

Publication Number Publication Date
TW200600951A true TW200600951A (en) 2006-01-01
TWI281593B TWI281593B (en) 2007-05-21

Family

ID=34980350

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094119260A TWI281593B (en) 2004-06-23 2005-06-10 Projector with automatic focus adjustment

Country Status (7)

Country Link
US (1) US7384160B2 (zh)
EP (1) EP1610548B1 (zh)
JP (1) JP3925513B2 (zh)
KR (1) KR100656468B1 (zh)
CN (1) CN100444022C (zh)
DE (1) DE602005000296T2 (zh)
TW (1) TWI281593B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI448808B (zh) * 2008-01-25 2014-08-11 Chi Mei Comm Systems Inc 投影機自動對焦系統及方法

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SE530750C2 (sv) * 2006-07-19 2008-09-02 Hemocue Ab En mätapparat, en metod och ett datorprogram
CN100592199C (zh) * 2006-11-10 2010-02-24 鸿富锦精密工业（深圳）有限公司 自动聚焦投影仪及其自动聚焦方法
US7544919B2 (en) * 2006-11-20 2009-06-09 Red.Com, Inc. Focus assist system and method
US8297758B2 (en) * 2007-02-20 2012-10-30 Daegu Gyeongbuk Institute Of Science And Technology Multimedia player displaying 2 projection images
JP2008289078A (ja) * 2007-05-21 2008-11-27 Funai Electric Co Ltd 投射型映像表示装置
CN101470246B (zh) * 2007-12-27 2010-12-01 深圳富泰宏精密工业有限公司 投影机自动对焦系统及方法
JP5374953B2 (ja) * 2008-07-30 2013-12-25 セイコーエプソン株式会社 プロジェクタおよびプロジェクタの制御方法
JP5354163B2 (ja) * 2008-12-05 2013-11-27 セイコーエプソン株式会社 プロジェクター、プログラムおよび情報記憶媒体
JP5262743B2 (ja) * 2009-01-20 2013-08-14 セイコーエプソン株式会社 投写型表示装置及びその制御方法、その制御プログラム
US7972018B2 (en) * 2009-02-25 2011-07-05 Canon Kabushiki Kaisha Image projection system with auto-focus
DE102010023108B4 (de) 2009-06-04 2019-12-05 Sypro Optics Gmbh Projektor mit automatischer Fokussierung und Abbildungsverfahren
JP5268839B2 (ja) * 2009-09-10 2013-08-21 三洋電機株式会社 投写型映像表示装置
JP2012008522A (ja) * 2010-02-19 2012-01-12 Sanyo Electric Co Ltd 制御装置および投写型映像表示装置
JP2012078658A (ja) * 2010-10-04 2012-04-19 Sanyo Electric Co Ltd 投写型映像表示装置
TWI436154B (zh) * 2011-01-31 2014-05-01 Asia Optical Co Inc The projector's autofocus system
CN102636939A (zh) * 2011-02-11 2012-08-15 中强光电股份有限公司 投射系统
US8547439B2 (en) 2012-02-23 2013-10-01 Apple Inc. Testing an optical characteristic of a camera component
US9055237B1 (en) * 2012-06-01 2015-06-09 Rawles Llc Projection autofocus
US9247125B2 (en) * 2012-12-11 2016-01-26 Samsung Electronics Co., Ltd. Auxiliary light projection apparatus, flash apparatus, and photographing apparatus
CN103324020A (zh) * 2013-06-18 2013-09-25 中山市众盈光学有限公司 一种投影机自动调焦控制系统
CN103324019A (zh) * 2013-06-18 2013-09-25 中山市众盈光学有限公司 一种新型投影机自动调焦控制系统
US9319622B2 (en) 2014-01-09 2016-04-19 International Business Machines Corporation Video projector with automated image enhancement
JP2015206950A (ja) * 2014-04-22 2015-11-19 ソニー株式会社 情報処理装置、情報処理方法、プログラム、調整装置、及び画像表示システム
KR102640848B1 (ko) 2016-03-03 2024-02-28 삼성전자주식회사 시료 검사 방법, 시료 검사 시스템, 및 이들을 이용한 반도체 소자의 검사 방법
CN106604005B (zh) * 2016-12-20 2019-09-10 深圳市Tcl高新技术开发有限公司 一种投影电视自动对焦方法及系统
CN108668118A (zh) * 2017-03-31 2018-10-16 中强光电股份有限公司 自动对焦系统、具有自动对焦系统的投影机以及自动对焦方法
CN107643579B (zh) * 2017-09-05 2020-05-12 江西合力泰科技有限公司 一种提高摄像头对焦一致性的方法
CN108489426B (zh) * 2018-05-17 2023-11-28 信利半导体有限公司 一种非矩形显示产品组装精度的检测方法及检测系统
JP7352768B2 (ja) 2019-06-10 2023-09-29 パナソニックＩｐマネジメント株式会社 プロジェクタのオートフォーカス制御システム
WO2021005105A1 (en) * 2019-07-09 2021-01-14 Sony Semiconductor Solutions Corporation Imaging systems, devices and methods
CN115002433A (zh) * 2022-06-02 2022-09-02 海信视像科技股份有限公司 投影设备及roi特征区域选取方法

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US4801963A (en) * 1985-12-18 1989-01-31 Canon Kabushiki Kaisha Focus detecting system
JP2775844B2 (ja) 1989-05-01 1998-07-16 ソニー株式会社 紫外光照射プロジェクターを用いた光学的像形成装置
JPH063577A (ja) 1992-06-19 1994-01-14 Sony Corp フォーカス調整装置およびその方法
JPH08292496A (ja) 1995-04-24 1996-11-05 Sony Corp プロジェクタのフォーカス・ズーム自動調整方法及びその自動調整装置
EP0817157A3 (en) 1996-06-28 1998-08-12 Texas Instruments Incorporated Improvements in or relating to image display system
JP3653419B2 (ja) 1998-06-26 2005-05-25 松下電器産業株式会社 プロジェクタ
JP2000241874A (ja) 1999-02-19 2000-09-08 Nec Corp プロジェクタの自動画面位置調整方法及び装置
US6530666B1 (en) * 1999-06-10 2003-03-11 Intel Corporation Focusing projection displays
TW446848B (en) * 2000-11-29 2001-07-21 Acer Comm & Amp Multimedia Inc Projection system for automatically adjusting focal length and method thereof
JP2004093890A (ja) 2002-08-30 2004-03-25 Canon Inc 投射型画像表示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI448808B (zh) * 2008-01-25 2014-08-11 Chi Mei Comm Systems Inc 投影機自動對焦系統及方法

Also Published As

Publication number Publication date
DE602005000296T2 (de) 2007-06-21
EP1610548B1 (en) 2006-11-29
CN100444022C (zh) 2008-12-17
DE602005000296D1 (de) 2007-01-11
KR100656468B1 (ko) 2006-12-11
JP2006010791A (ja) 2006-01-12
TWI281593B (en) 2007-05-21
JP3925513B2 (ja) 2007-06-06
CN1713068A (zh) 2005-12-28
EP1610548A1 (en) 2005-12-28
US20050286026A1 (en) 2005-12-29
KR20060049644A (ko) 2006-05-19
US7384160B2 (en) 2008-06-10

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MM4A Annulment or lapse of patent due to non-payment of fees