JP4564884B2 - レンズ装置及び撮影装置 - Google Patents

レンズ装置及び撮影装置 Download PDF

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Publication number
JP4564884B2
JP4564884B2 JP2005131330A JP2005131330A JP4564884B2 JP 4564884 B2 JP4564884 B2 JP 4564884B2 JP 2005131330 A JP2005131330 A JP 2005131330A JP 2005131330 A JP2005131330 A JP 2005131330A JP 4564884 B2 JP4564884 B2 JP 4564884B2
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JP
Japan
Prior art keywords
evaluation value
video signal
lens
focus
circuit
Prior art date
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Expired - Fee Related
Application number
JP2005131330A
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English (en)
Japanese (ja)
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JP2006311204A (ja
JP2006311204A5 (enExample
Inventor
勝己 柄沢
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2005131330A priority Critical patent/JP4564884B2/ja
Priority to US11/399,911 priority patent/US7884878B2/en
Priority to EP06252167A priority patent/EP1718063B1/en
Publication of JP2006311204A publication Critical patent/JP2006311204A/ja
Publication of JP2006311204A5 publication Critical patent/JP2006311204A5/ja
Application granted granted Critical
Publication of JP4564884B2 publication Critical patent/JP4564884B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
JP2005131330A 2005-04-28 2005-04-28 レンズ装置及び撮影装置 Expired - Fee Related JP4564884B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005131330A JP4564884B2 (ja) 2005-04-28 2005-04-28 レンズ装置及び撮影装置
US11/399,911 US7884878B2 (en) 2005-04-28 2006-04-07 Lens apparatus, imaging apparatus, and automatic focusing control method
EP06252167A EP1718063B1 (en) 2005-04-28 2006-04-21 Lens apparatus, imaging apparatus and automatic focusing control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005131330A JP4564884B2 (ja) 2005-04-28 2005-04-28 レンズ装置及び撮影装置

Publications (3)

Publication Number Publication Date
JP2006311204A JP2006311204A (ja) 2006-11-09
JP2006311204A5 JP2006311204A5 (enExample) 2008-06-19
JP4564884B2 true JP4564884B2 (ja) 2010-10-20

Family

ID=36637843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005131330A Expired - Fee Related JP4564884B2 (ja) 2005-04-28 2005-04-28 レンズ装置及び撮影装置

Country Status (3)

Country Link
US (1) US7884878B2 (enExample)
EP (1) EP1718063B1 (enExample)
JP (1) JP4564884B2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8525923B2 (en) * 2010-08-30 2013-09-03 Samsung Electronics Co., Ltd. Focusing method and apparatus, and recording medium for recording the method
CN108139564B (zh) * 2015-09-30 2020-12-08 富士胶片株式会社 对焦控制装置、摄像装置、对焦控制方法及对焦控制程序

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940011885B1 (ko) * 1987-02-18 1994-12-27 상요덴기 가부시기가이샤 영상 신호에 기인해서 초점의 자동 정합을 행하는 오토포커스 회로
JP2748637B2 (ja) 1990-03-09 1998-05-13 ソニー株式会社 オートフォーカス制御装置
JP3325593B2 (ja) * 1991-12-03 2002-09-17 チノン株式会社 合焦制御装置
US5614945A (en) * 1993-10-19 1997-03-25 Canon Kabushiki Kaisha Image processing system modifying image shake correction based on superimposed images
JPH089219A (ja) 1994-06-17 1996-01-12 Canon Inc カメラ
US6654061B2 (en) * 1995-06-14 2003-11-25 Canon Kabushiki Kaisha Automatic focus adjusting apparatus and method utilized by an image sensing apparatus
US6683652B1 (en) * 1995-08-29 2004-01-27 Canon Kabushiki Kaisha Interchangeable lens video camera system having improved focusing
JPH0965184A (ja) 1995-08-29 1997-03-07 Canon Inc レンズユニット及びカメラユニット及びカメラシステム
JPH09243906A (ja) 1996-03-05 1997-09-19 Eastman Kodak Japan Kk 自動焦点合わせ装置および自動焦点合わせ方法
US7133078B2 (en) * 1997-05-21 2006-11-07 Olympus Optical Co., Ltd. Automatic focal point sensing device
JPH11234549A (ja) * 1998-02-13 1999-08-27 Sharp Corp オートフォーカス装置
US6972798B1 (en) * 1999-08-31 2005-12-06 Canon Kabushiki Kaisha Focusing device and method
JP2001324672A (ja) * 2000-05-15 2001-11-22 Fuji Photo Film Co Ltd オートフォーカス制御方法及びオートフォーカス装置
US7319487B2 (en) 2002-04-10 2008-01-15 Olympus Optical Co., Ltd. Focusing apparatus, camera and focus position detecting method
JP4411037B2 (ja) 2002-09-09 2010-02-10 キヤノン株式会社 レンズ装置および撮影システム
JP4208563B2 (ja) * 2002-12-18 2009-01-14 キヤノン株式会社 自動焦点調節装置
JP3845620B2 (ja) * 2003-03-19 2006-11-15 株式会社タムロン 自動焦点調整装置
JP5464771B2 (ja) * 2003-10-15 2014-04-09 キヤノン株式会社 撮像装置およびそのフォーカス制御方法
KR100689420B1 (ko) * 2004-06-02 2007-03-08 삼성전자주식회사 휴대용 단말기의 오토포커싱 방법

Also Published As

Publication number Publication date
EP1718063A3 (en) 2010-01-20
US20060244582A1 (en) 2006-11-02
JP2006311204A (ja) 2006-11-09
US7884878B2 (en) 2011-02-08
EP1718063B1 (en) 2011-10-19
EP1718063A2 (en) 2006-11-02

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