KR890015064A - 초점위치 검출장치 - Google Patents

초점위치 검출장치 Download PDF

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Publication number
KR890015064A
KR890015064A KR1019890002286A KR890002286A KR890015064A KR 890015064 A KR890015064 A KR 890015064A KR 1019890002286 A KR1019890002286 A KR 1019890002286A KR 890002286 A KR890002286 A KR 890002286A KR 890015064 A KR890015064 A KR 890015064A
Authority
KR
South Korea
Prior art keywords
lens
focus position
amplitude value
detecting
position information
Prior art date
Application number
KR1019890002286A
Other languages
English (en)
Other versions
KR970010203B1 (en
Inventor
마사노부 요시다
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR890015064A publication Critical patent/KR890015064A/ko
Application granted granted Critical
Publication of KR970010203B1 publication Critical patent/KR970010203B1/ko

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/95—Computational photography systems, e.g. light-field imaging systems
    • H04N23/958—Computational photography systems, e.g. light-field imaging systems for extended depth of field imaging
    • H04N23/959—Computational photography systems, e.g. light-field imaging systems for extended depth of field imaging by adjusting depth of field during image capture, e.g. maximising or setting range based on scene characteristics
    • 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
    • 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
    • G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
    • G03B3/10—Power-operated focusing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Color Television Image Signal Generators (AREA)
  • Focusing (AREA)

Abstract

내용 없음.

Description

초점위치 검출장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시에에 의한 오토포커스 장치를 나타내는 블록도.
제2도는 그 동작의 설명을 위한 약선도.
제3도는 그 설명을 위한 특성곡선도.

Claims (2)

  1. 소정의 색수차를 구비한 렌즈와, 상기 렌즈를 통해서 피사체를 촬상하는 촬상수단과, 상기 촬상수단에서 출력되는 색신호의 진폭치를 검출하는 진폭치검출수단과, 상기 진폭치검출수단의 검출결과를 상기 색신호사이에서 비교하고, 이 비교결과에 따라서 상기 렌즈로 상기 피사체를 촬상했을때의 초점위치 정보를 검출하는 초점위치 정보검출수단을 구비하는 것을 특징으로 하는 초점위치 검출장치.
  2. 소정의 색수차를 구비한 렌즈와, 상기 렌즈를 통해 피사체를 촬상하는 촬상 수단과, 상기 촬상수단에서 출력되는 적색,청색,녹색의 색신호에 대해서 각각 직폭치를 검출하는 진폭치 검출수단과, 상기 적색,청색,녹색의 색신호의 신호레벨에 따라서 상기 진폭치 검출수단의 검출결과를 정규화하는 진폭치 보정수단과, 상기 정규화된 진폭치를 상기 적색,청색, 녹색의 색신호 사이에서 비교하고, 이 비교결과에 따라서 상기 렌즈로 상기 피사체를 촬상했을때의 초점위치 정보를 검출하는 초점 위치정보검출수단, 상기 초점위치정보에 따라서 상기 피사체의 상기 합초점 상태가 되도록 상기 렌즈의 조정하는 초점위치제어수단을 구비한 것을 특징으로 하는 초점위치 검출장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR89002286A 1988-03-29 1989-02-27 Automatic focus control apparatus KR970010203B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63077545A JPH01246516A (ja) 1988-03-29 1988-03-29 焦点位置検出装置
JP63-77545 1988-03-29

Publications (2)

Publication Number Publication Date
KR890015064A true KR890015064A (ko) 1989-10-28
KR970010203B1 KR970010203B1 (en) 1997-06-23

Family

ID=13636976

Family Applications (1)

Application Number Title Priority Date Filing Date
KR89002286A KR970010203B1 (en) 1988-03-29 1989-02-27 Automatic focus control apparatus

Country Status (5)

Country Link
US (1) US4992859A (ko)
EP (1) EP0335656B1 (ko)
JP (1) JPH01246516A (ko)
KR (1) KR970010203B1 (ko)
DE (1) DE68902941T2 (ko)

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JPH01246516A (ja) * 1988-03-29 1989-10-02 Sony Corp 焦点位置検出装置
JPH0381879A (ja) * 1989-08-24 1991-04-08 Canon Inc 医用画像処理装置
DE3938522C2 (de) * 1989-11-21 1998-09-24 Philips Broadcast Television S System zum Fokussieren eines Fernsehkamera-Objektivs
EP0436511B1 (en) * 1990-01-05 1997-07-16 Canon Kabushiki Kaisha In-focus detecting device
JPH03230698A (ja) * 1990-02-05 1991-10-14 Mitsubishi Electric Corp オートホワイトバランス調整装置
JP3021556B2 (ja) * 1990-06-20 2000-03-15 ソニー株式会社 映像情報処理装置とその方法
US5835143A (en) * 1993-09-02 1998-11-10 Asahi Kogaku Kogyo Kabushiki Kaisha Automatic focusing system for a still video camera
US6654061B2 (en) * 1995-06-14 2003-11-25 Canon Kabushiki Kaisha Automatic focus adjusting apparatus and method utilized by an image sensing apparatus
EP0844465B1 (en) * 1996-11-26 2002-12-18 Korea Atomic Energy Research Institute Method and system for spatial filtering of an extended radiation source with chromatic aberration of imaging optics in single-element detector measurement for monitoring of the extended radiation source
US5973846A (en) * 1998-11-30 1999-10-26 Hewlett-Packard Company Offset spectra lens system for a two spectra automatic focusing system
JP2000338385A (ja) * 1999-05-28 2000-12-08 Ricoh Co Ltd 自動合焦装置およびその合焦方法
KR100443152B1 (ko) * 2001-11-28 2004-08-04 한국원자력연구소 레이저 용접시 용접 풀 크기감시 및 초점제어 방법
US7478754B2 (en) * 2003-08-25 2009-01-20 Symbol Technologies, Inc. Axial chromatic aberration auto-focusing system and method
JP5173131B2 (ja) * 2005-10-26 2013-03-27 キヤノン株式会社 光学機器および焦点調節方法
JP5285609B2 (ja) * 2006-08-30 2013-09-11 スリーエム イノベイティブ プロパティズ カンパニー 長寿命化された研磨物品及び方法
US8125560B1 (en) 2007-08-13 2012-02-28 Ambarella, Inc. System for topology based automatic focus
JP2009103800A (ja) * 2007-10-22 2009-05-14 Sony Corp オートフォーカス装置および方法、並びにプログラム
JP5404122B2 (ja) * 2009-03-26 2014-01-29 オリンパス株式会社 焦点位置調整装置およびカメラ
JP5771913B2 (ja) * 2009-07-17 2015-09-02 株式会社ニコン 焦点調節装置、およびカメラ
JP5771914B2 (ja) * 2009-07-17 2015-09-02 株式会社ニコン 焦点調節装置、およびカメラ
US9131142B2 (en) 2009-07-17 2015-09-08 Nikon Corporation Focusing device and camera
WO2011007869A1 (ja) * 2009-07-17 2011-01-20 株式会社ニコン 焦点調節装置およびカメラ
US8958009B2 (en) * 2010-01-12 2015-02-17 Nikon Corporation Image-capturing device
JP5757099B2 (ja) * 2010-02-15 2015-07-29 株式会社ニコン 焦点調節装置、及び焦点調節プログラム
JP5506447B2 (ja) * 2010-02-23 2014-05-28 キヤノン株式会社 撮像装置、および撮像装置の制御方法
WO2013031238A1 (ja) 2011-09-02 2013-03-07 株式会社ニコン 合焦評価装置、撮像装置およびプログラム
JP6516429B2 (ja) * 2014-09-16 2019-05-22 キヤノン株式会社 距離計測装置、撮像装置、および距離計測方法
JP6573122B2 (ja) * 2016-02-25 2019-09-11 株式会社東京精密 ダイシング装置及びダイシング方法
CN106412436B (zh) * 2016-10-12 2019-08-02 歌尔股份有限公司 对焦方法

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JPS53145620A (en) * 1977-05-25 1978-12-19 Fuji Photo Film Co Ltd Hue extractor
JPS5961807A (ja) * 1982-09-30 1984-04-09 Canon Inc 自動焦点制御装置
JPS60120309A (ja) * 1983-12-02 1985-06-27 Canon Inc 自動焦点調節装置
JPH0628454B2 (ja) * 1985-06-17 1994-04-13 ソニー株式会社 固体撮像素子のバツクフオ−カス調整方法
JPH079499B2 (ja) * 1986-04-25 1995-02-01 ソニー株式会社 オ−トフオ−カス装置
KR890003567B1 (ko) * 1986-08-07 1989-09-23 주식회사 금성사 비디오 카메라의 자동초점 시스템
US4748509A (en) * 1986-09-18 1988-05-31 Victor Company Of Japan, Ltd. Focusing control and indication of information relating to an object
JPS6382082A (ja) * 1986-09-26 1988-04-12 Toshiba Corp カラ−イメ−ジセンサの焦点合わせ方法
DE3783435T2 (de) * 1986-10-02 1993-07-29 Victor Company Of Japan Automatisches fokussierungsverfahren.
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JPH0754372B2 (ja) * 1987-07-08 1995-06-07 富士写真フイルム株式会社 位相差検出装置
JPH01246516A (ja) * 1988-03-29 1989-10-02 Sony Corp 焦点位置検出装置

Also Published As

Publication number Publication date
EP0335656A1 (en) 1989-10-04
KR970010203B1 (en) 1997-06-23
EP0335656B1 (en) 1992-09-23
DE68902941T2 (de) 1993-03-25
DE68902941D1 (de) 1992-10-29
US4992859A (en) 1991-02-12
JPH01246516A (ja) 1989-10-02

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