JP4481610B2 - 撮像装置および撮像装置のフォーカス制御方法 - Google Patents

撮像装置および撮像装置のフォーカス制御方法 Download PDF

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Publication number
JP4481610B2
JP4481610B2 JP2003317340A JP2003317340A JP4481610B2 JP 4481610 B2 JP4481610 B2 JP 4481610B2 JP 2003317340 A JP2003317340 A JP 2003317340A JP 2003317340 A JP2003317340 A JP 2003317340A JP 4481610 B2 JP4481610 B2 JP 4481610B2
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JP
Japan
Prior art keywords
focus
control
focus lens
lens unit
value
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
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JP2003317340A
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English (en)
Japanese (ja)
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JP2005084426A5 (enExample
JP2005084426A (ja
Inventor
仁志 保田
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
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2003317340A priority Critical patent/JP4481610B2/ja
Priority to US10/909,404 priority patent/US7570298B2/en
Publication of JP2005084426A publication Critical patent/JP2005084426A/ja
Publication of JP2005084426A5 publication Critical patent/JP2005084426A5/ja
Application granted granted Critical
Publication of JP4481610B2 publication Critical patent/JP4481610B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
JP2003317340A 2003-09-09 2003-09-09 撮像装置および撮像装置のフォーカス制御方法 Expired - Fee Related JP4481610B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2003317340A JP4481610B2 (ja) 2003-09-09 2003-09-09 撮像装置および撮像装置のフォーカス制御方法
US10/909,404 US7570298B2 (en) 2003-09-09 2004-08-03 Image-taking apparatus with first focus control such that in-focus position is searched for based on first signal and second focus control such that one of in-focus position and drive amount is determined based on second signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003317340A JP4481610B2 (ja) 2003-09-09 2003-09-09 撮像装置および撮像装置のフォーカス制御方法

Publications (3)

Publication Number Publication Date
JP2005084426A JP2005084426A (ja) 2005-03-31
JP2005084426A5 JP2005084426A5 (enExample) 2006-10-26
JP4481610B2 true JP4481610B2 (ja) 2010-06-16

Family

ID=34225284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003317340A Expired - Fee Related JP4481610B2 (ja) 2003-09-09 2003-09-09 撮像装置および撮像装置のフォーカス制御方法

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Country Link
US (1) US7570298B2 (enExample)
JP (1) JP4481610B2 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US7733412B2 (en) 2004-06-03 2010-06-08 Canon Kabushiki Kaisha Image pickup apparatus and image pickup method
JP2006301032A (ja) * 2005-04-15 2006-11-02 Sony Corp オートフォーカス装置とオートフォーカス方法およびプログラム
JP4933061B2 (ja) * 2005-06-10 2012-05-16 キヤノン株式会社 光学機器
JP4641494B2 (ja) * 2005-11-28 2011-03-02 キヤノン株式会社 光学機器
JP2007187983A (ja) * 2006-01-16 2007-07-26 Sony Corp 撮像装置、およびレンズ位置調整方法
JP4861057B2 (ja) * 2006-05-29 2012-01-25 キヤノン株式会社 撮像装置およびその制御方法
JP2008026789A (ja) * 2006-07-25 2008-02-07 Canon Inc 撮像装置及びフォーカス制御方法
JP2008026786A (ja) * 2006-07-25 2008-02-07 Canon Inc 撮像装置及びフォーカス制御方法
JP2008249966A (ja) * 2007-03-30 2008-10-16 Nikon Corp オートフォーカス装置及びカメラ
CN105866917A (zh) 2011-05-31 2016-08-17 株式会社尼康 镜头镜筒及相机机身
US10250793B2 (en) 2011-06-29 2019-04-02 Nikon Corporation Focus adjustment device having a control unit that drives a focus adjustment optical system to a focused position acquired first by either a contrast detection system or a phase difference detection system
FR3030791A1 (enExample) 2014-12-23 2016-06-24 Stmicroelectronics (Grenoble 2) Sas
JP2024080512A (ja) * 2022-12-02 2024-06-13 株式会社タムロン レンズ制御装置、レンズシステム、及びプログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381713A (ja) * 1989-08-25 1991-04-08 Tamron Co Ltd 自動焦点調整装置
US5335072A (en) * 1990-05-30 1994-08-02 Minolta Camera Kabushiki Kaisha Photographic system capable of storing information on photographed image data
JPH0564056A (ja) 1991-08-30 1993-03-12 Canon Inc 合焦装置
US6222588B1 (en) * 1993-05-28 2001-04-24 Canon Kabushiki Kaisha Automatic focus adjusting device with driving direction control
US7388614B2 (en) 1997-08-18 2008-06-17 Canon Kabushiki Kaisha Automatic focus adjustment device and method using auxiliary light
JP3709294B2 (ja) * 1998-11-18 2005-10-26 株式会社リコー 自動焦点検出装置
JP2000292681A (ja) * 1999-04-06 2000-10-20 Canon Inc 焦点検出装置
JP3387901B2 (ja) * 1999-11-24 2003-03-17 オリンパス光学工業株式会社 電子カメラ
JP3634232B2 (ja) * 2000-03-30 2005-03-30 コニカミノルタフォトイメージング株式会社 デジタルスチルカメラ
JP2002207162A (ja) * 2001-01-12 2002-07-26 Minolta Co Ltd デジタルカメラ
JP3797543B2 (ja) * 2001-10-26 2006-07-19 富士写真フイルム株式会社 自動焦点調節装置

Also Published As

Publication number Publication date
US20050052563A1 (en) 2005-03-10
JP2005084426A (ja) 2005-03-31
US7570298B2 (en) 2009-08-04

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