ATE479922T1 - Autofokus für kamera - Google Patents

Autofokus für kamera

Info

Publication number
ATE479922T1
ATE479922T1 AT05718020T AT05718020T ATE479922T1 AT E479922 T1 ATE479922 T1 AT E479922T1 AT 05718020 T AT05718020 T AT 05718020T AT 05718020 T AT05718020 T AT 05718020T AT E479922 T1 ATE479922 T1 AT E479922T1
Authority
AT
Austria
Prior art keywords
lens arrangement
image
image sensor
autofocusing
control signal
Prior art date
Application number
AT05718020T
Other languages
English (en)
Inventor
Anthony Hooley
David Richards
James Allan
Robert Leedham
Mark Shepherd
Original Assignee
Cambridge Mechatronics Ltd
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
Priority claimed from GBGB0405773.3A external-priority patent/GB0405773D0/en
Priority claimed from GB0417762A external-priority patent/GB0417762D0/en
Application filed by Cambridge Mechatronics Ltd filed Critical Cambridge Mechatronics Ltd
Application granted granted Critical
Publication of ATE479922T1 publication Critical patent/ATE479922T1/de

Links

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
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
    • 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
    • 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
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Studio Devices (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Eye Examination Apparatus (AREA)
  • Focusing (AREA)
  • Lens Barrels (AREA)
AT05718020T 2004-03-15 2005-03-14 Autofokus für kamera ATE479922T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0405773.3A GB0405773D0 (en) 2004-03-15 2004-03-15 Autofocus method
GB0417762A GB0417762D0 (en) 2004-08-10 2004-08-10 Autofocus methods
PCT/GB2005/000964 WO2005091067A2 (en) 2004-03-15 2005-03-14 Camera autofocus

Publications (1)

Publication Number Publication Date
ATE479922T1 true ATE479922T1 (de) 2010-09-15

Family

ID=34961970

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05718020T ATE479922T1 (de) 2004-03-15 2005-03-14 Autofokus für kamera

Country Status (7)

Country Link
US (1) US20070177860A1 (de)
EP (1) EP1730587B1 (de)
JP (1) JP2007529773A (de)
KR (1) KR20060132940A (de)
AT (1) ATE479922T1 (de)
DE (1) DE602005023284D1 (de)
WO (1) WO2005091067A2 (de)

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US7253384B2 (en) * 2005-03-23 2007-08-07 Microscan Systems Incorporated Focusing system using light source and image sensor
US7528354B2 (en) 2006-06-05 2009-05-05 Nokia Corporation Method and device for position sensing of an optical component in an imaging system
KR100906798B1 (ko) * 2007-06-01 2009-07-09 삼성전기주식회사 압전 구동 장치와 그 구동 방법 및 이를 이용한 광변조장치
KR100906799B1 (ko) 2007-06-01 2009-07-09 삼성전기주식회사 압전 소자 구동 방법 및 압전 소자를 포함하는 광변조기구동 방법 및 이를 실행하기 위한 프로그램을 기록한 기록매체
CN101408660B (zh) * 2007-10-08 2010-10-13 De&T株式会社 自动多焦点调焦装置及其方法
TWI373603B (en) * 2008-09-19 2012-10-01 Primax Electronics Ltd Method for judging focus quality of image pickup device
JP4591632B2 (ja) * 2008-12-24 2010-12-01 コニカミノルタオプト株式会社 形状記憶合金アクチュエータの駆動装置および該方法ならびにそれを用いた撮像装置
US8507834B2 (en) * 2009-02-10 2013-08-13 Intermec Ip Corp. System and method for autofocusing an optical system through image spectral analysis
KR101664352B1 (ko) * 2009-09-09 2016-10-10 엘지이노텍 주식회사 Ｖｃｍ 엑추에이터를 이용한 자동 초점조절방법
US8558154B2 (en) * 2009-10-29 2013-10-15 Applied Precision, Inc. System and method for continuous, asynchronous autofocus of optical instruments using multiple calibration curves
TW201212672A (en) † 2010-06-10 2012-03-16 Koninkl Philips Electronics Nv Adjusting a building service system
US8866114B2 (en) * 2011-01-20 2014-10-21 Mitutoyo Corporation Vision measuring device
US20130100334A1 (en) * 2011-10-20 2013-04-25 Broadcom Corporation Method and System for an Adaptive Auto-Focus Algorithm
CN103137026B (zh) 2011-11-29 2015-06-03 联想(北京)有限公司 一种电子设备及其成像方法
EP2850492B1 (de) * 2012-05-17 2019-12-25 LG Innotek Co., Ltd. Kameramodul und automatisches fokussierungsverfahren
US8873944B2 (en) 2012-10-09 2014-10-28 Allegro Microsystems, Llc Methods and apparatus for positioning a coil motor
US9291876B2 (en) 2013-05-29 2016-03-22 Allegro Microsystems, Llc System and method for controlling a motor
CN103584831A (zh) * 2013-11-14 2014-02-19 南京航空航天大学 一种可调焦式内窥胶囊及系统
JP6478496B2 (ja) * 2014-07-03 2019-03-06 キヤノン株式会社 撮像装置およびその制御方法
KR102025361B1 (ko) * 2014-07-10 2019-09-25 한화테크윈 주식회사 자동 초점 조절 시스템 및 방법
US20180039156A1 (en) * 2015-02-26 2018-02-08 Lg Innotek Co., Ltd. Camera Module and Auto-Focus Adjustment Method Using Same
US10101560B2 (en) 2015-09-04 2018-10-16 Mediatek Inc. Systems and methods for focusing on objects to capture images thereof
KR102362733B1 (ko) * 2017-04-11 2022-02-15 엘지이노텍 주식회사 액체 렌즈, 카메라 모듈 및 광학 기기
KR102476404B1 (ko) * 2017-07-18 2022-12-12 엘지이노텍 주식회사 ToF 모듈 및 그 ToF 모듈을 이용한 피사체 인식장치
US10578827B2 (en) * 2018-04-27 2020-03-03 Mitutoyo Corporation Variable focal length lens system with quasi-sinusoidal periodic intensity modulated light
KR102704135B1 (ko) * 2019-01-22 2024-09-09 엘지이노텍 주식회사 카메라 장치 및 그의 오토포커싱 방법
EP3792988A1 (de) * 2019-09-10 2021-03-17 poLight ASA Vorwärtskopplungsbestimmung eines steuersignals für einen piezoaktor
US11490122B2 (en) * 2020-09-24 2022-11-01 Tencent America LLC Method and apparatus for video coding
CN115657265B (zh) * 2022-12-20 2023-06-09 宜昌华鑫智能光学有限公司 镜头的变焦控制方法及其系统

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Publication number Priority date Publication date Assignee Title
JPS593406A (ja) * 1982-06-29 1984-01-10 Olympus Optical Co Ltd 焦点状態検出装置
JPH0237313A (ja) * 1988-07-27 1990-02-07 Hitachi Ltd 自動焦点位置検出方法
JPH03214868A (ja) * 1990-01-19 1991-09-20 Ricoh Co Ltd 自動焦点調整装置
JPH04355804A (ja) * 1991-06-03 1992-12-09 Toshiba Corp 位置調整装置
US6010537A (en) * 1997-08-19 2000-01-04 Minolta Co., Ltd. Zoom lens system having an image blur compensation function
JP2000292683A (ja) * 1999-04-09 2000-10-20 Canon Inc 撮像装置および自動合焦制御方法
US7224813B2 (en) 1999-12-21 2007-05-29 1. . . Limited Loudspeaker using an electro-active device
DE60008716T2 (de) * 2000-07-10 2005-02-10 Stmicroelectronics S.R.L., Agrate Brianza Verfahren zur Kompression digitaler Bilder
GB0115073D0 (en) 2001-06-20 2001-08-15 1 Ltd Camera lens positioning using an electro-active device
US7280149B2 (en) * 2001-12-21 2007-10-09 Flextronics Sales & Marketing (A-P) Ltd. Method and apparatus for detecting optimum lens focus position
JP2003295038A (ja) * 2002-03-29 2003-10-15 Hitachi Kokusai Electric Inc 合焦点検出装置
JP2004205742A (ja) * 2002-12-25 2004-07-22 Fuji Photo Film Co Ltd 光学系駆動方法

Also Published As

Publication number Publication date
KR20060132940A (ko) 2006-12-22
DE602005023284D1 (de) 2010-10-14
JP2007529773A (ja) 2007-10-25
WO2005091067A3 (en) 2006-02-02
EP1730587B1 (de) 2010-09-01
US20070177860A1 (en) 2007-08-02
EP1730587A2 (de) 2006-12-13
WO2005091067A2 (en) 2005-09-29

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