TW201109809A - Focus controlling circuit - Google Patents

Focus controlling circuit Download PDF

Info

Publication number
TW201109809A
TW201109809A TW099122099A TW99122099A TW201109809A TW 201109809 A TW201109809 A TW 201109809A TW 099122099 A TW099122099 A TW 099122099A TW 99122099 A TW99122099 A TW 99122099A TW 201109809 A TW201109809 A TW 201109809A
Authority
TW
Taiwan
Prior art keywords
lens
equalizer
control circuit
focus
focus control
Prior art date
Application number
TW099122099A
Other languages
English (en)
Chinese (zh)
Inventor
Hiroki Nagai
Takeshi Kura
Tomonori Kamiya
Original Assignee
Sanyo Electric Co
Sanyo Semiconductor Co 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
Application filed by Sanyo Electric Co, Sanyo Semiconductor Co Ltd filed Critical Sanyo Electric Co
Publication of TW201109809A publication Critical patent/TW201109809A/zh

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
    • G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Automatic Focus Adjustment (AREA)
  • Studio Devices (AREA)
TW099122099A 2009-07-15 2010-07-06 Focus controlling circuit TW201109809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009167113 2009-07-15

Publications (1)

Publication Number Publication Date
TW201109809A true TW201109809A (en) 2011-03-16

Family

ID=43484949

Family Applications (1)

Application Number Title Priority Date Filing Date
TW099122099A TW201109809A (en) 2009-07-15 2010-07-06 Focus controlling circuit

Country Status (3)

Country Link
KR (1) KR101093372B1 (ko)
CN (1) CN101957538B (ko)
TW (1) TW201109809A (ko)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130024315A (ko) * 2011-08-31 2013-03-08 엘지이노텍 주식회사 카메라 모듈의 오토 포커스 장치 및 방법
KR102029487B1 (ko) * 2014-03-11 2019-10-07 삼성전기주식회사 자동 초점 조절 장치 및 그를 구비한 촬상 시스템
US10165170B2 (en) * 2017-03-06 2018-12-25 Semiconductor Components Industries, Llc Methods and apparatus for autofocus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3997746B2 (ja) 2001-10-19 2007-10-24 コニカミノルタホールディングス株式会社 デジタルスチルカメラ
JP2005173269A (ja) * 2003-12-11 2005-06-30 Canon Inc 光学機器
CN100454132C (zh) * 2004-10-11 2009-01-21 吉佳科技股份有限公司 音圈马达定位装置
KR100601475B1 (ko) * 2004-12-09 2006-07-18 삼성전기주식회사 이미지 복잡도에 따라 가변적 양자화 크기를 갖는 이미지압축 장치 및 그 방법
TWI333371B (en) * 2007-04-27 2010-11-11 Asustek Comp Inc Automatic focusing method of camera module and electric device
KR100880672B1 (ko) * 2007-07-18 2009-02-02 자화전자 주식회사 자동초점 기능을 구비한 카메라 시스템 및 그 제어방법
CN101350888B (zh) * 2007-07-20 2011-08-24 鸿富锦精密工业（深圳）有限公司 影像撷取装置及其自动对焦方法
CN101930150B (zh) * 2009-06-18 2012-01-04 三洋电机株式会社 聚焦控制电路

Also Published As

Publication number Publication date
KR20110007029A (ko) 2011-01-21
CN101957538B (zh) 2012-09-05
KR101093372B1 (ko) 2011-12-14
CN101957538A (zh) 2011-01-26

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