JP5576664B2 - 焦点検出装置及び方法 - Google Patents

焦点検出装置及び方法 Download PDF

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Publication number
JP5576664B2
JP5576664B2 JP2010011373A JP2010011373A JP5576664B2 JP 5576664 B2 JP5576664 B2 JP 5576664B2 JP 2010011373 A JP2010011373 A JP 2010011373A JP 2010011373 A JP2010011373 A JP 2010011373A JP 5576664 B2 JP5576664 B2 JP 5576664B2
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JP
Japan
Prior art keywords
pair
signal
focus detection
block
distance measuring
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
JP2010011373A
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English (en)
Japanese (ja)
Other versions
JP2011150139A (ja
JP2011150139A5 (enExample
Inventor
敬 一宮
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 JP2010011373A priority Critical patent/JP5576664B2/ja
Priority to US12/981,714 priority patent/US8971697B2/en
Priority to CN201110024991.3A priority patent/CN102135659B/zh
Publication of JP2011150139A publication Critical patent/JP2011150139A/ja
Publication of JP2011150139A5 publication Critical patent/JP2011150139A5/ja
Application granted granted Critical
Publication of JP5576664B2 publication Critical patent/JP5576664B2/ja
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus 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
    • 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
    • H04N23/672—Focus control based on electronic image sensor signals based on the phase difference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/50—Control of the SSIS exposure
    • H04N25/57—Control of the dynamic range
    • H04N25/58—Control of the dynamic range involving two or more exposures
    • H04N25/581—Control of the dynamic range involving two or more exposures acquired simultaneously
    • H04N25/583—Control of the dynamic range involving two or more exposures acquired simultaneously with different integration times
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
    • H04N25/771—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
JP2010011373A 2010-01-21 2010-01-21 焦点検出装置及び方法 Expired - Fee Related JP5576664B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2010011373A JP5576664B2 (ja) 2010-01-21 2010-01-21 焦点検出装置及び方法
US12/981,714 US8971697B2 (en) 2010-01-21 2010-12-30 Focus detection apparatus and focus detection method
CN201110024991.3A CN102135659B (zh) 2010-01-21 2011-01-21 焦点检测设备和焦点检测方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010011373A JP5576664B2 (ja) 2010-01-21 2010-01-21 焦点検出装置及び方法

Publications (3)

Publication Number Publication Date
JP2011150139A JP2011150139A (ja) 2011-08-04
JP2011150139A5 JP2011150139A5 (enExample) 2013-03-07
JP5576664B2 true JP5576664B2 (ja) 2014-08-20

Family

ID=44277647

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010011373A Expired - Fee Related JP5576664B2 (ja) 2010-01-21 2010-01-21 焦点検出装置及び方法

Country Status (3)

Country Link
US (1) US8971697B2 (enExample)
JP (1) JP5576664B2 (enExample)
CN (1) CN102135659B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6077872B2 (ja) * 2013-02-06 2017-02-08 キヤノン株式会社 焦点検出装置及びその制御方法
US9654680B2 (en) * 2013-10-17 2017-05-16 Canon Kabushiki Kaisha Image capturing apparatus and control method therefor
JP6613065B2 (ja) * 2015-07-10 2019-11-27 キヤノン株式会社 焦点検出装置及びその制御方法、及び撮像装置
JP6806471B2 (ja) 2016-06-16 2021-01-06 キヤノン株式会社 焦点検出装置及び方法、及び撮像装置
JP6891071B2 (ja) 2017-08-07 2021-06-18 キヤノン株式会社 情報処理装置、撮像システム、撮像方法及びプログラム
CN108886592A (zh) * 2017-11-29 2018-11-23 深圳市大疆创新科技有限公司 图像传感器、芯片、图像处理设备及相关方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298331B (en) * 1995-02-22 2000-02-16 Asahi Optical Co Ltd Distance measuring apparatus
JP2003215442A (ja) * 2002-01-25 2003-07-30 Canon Inc 多点測距装置
JP2006184320A (ja) * 2004-12-24 2006-07-13 Canon Inc 焦点検出装置及び焦点検出方法
JP5121120B2 (ja) * 2005-02-08 2013-01-16 キヤノン株式会社 焦点検出装置および光学機器

Also Published As

Publication number Publication date
US20110176794A1 (en) 2011-07-21
JP2011150139A (ja) 2011-08-04
US8971697B2 (en) 2015-03-03
CN102135659B (zh) 2014-11-05
CN102135659A (zh) 2011-07-27

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