KR100702167B1 - 구동장치 및 이를 구비한 광량 조절장치 - Google Patents

구동장치 및 이를 구비한 광량 조절장치 Download PDF

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Publication number
KR100702167B1
KR100702167B1 KR1020040074434A KR20040074434A KR100702167B1 KR 100702167 B1 KR100702167 B1 KR 100702167B1 KR 1020040074434 A KR1020040074434 A KR 1020040074434A KR 20040074434 A KR20040074434 A KR 20040074434A KR 100702167 B1 KR100702167 B1 KR 100702167B1
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KR
South Korea
Prior art keywords
light amount
stepping motor
amount adjusting
driving
adjusting member
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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KR1020040074434A
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English (en)
Korean (ko)
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KR20050028823A (ko
Inventor
와다히로유키
Original Assignee
캐논 가부시끼가이샤
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Publication date
Application filed by 캐논 가부시끼가이샤 filed Critical 캐논 가부시끼가이샤
Publication of KR20050028823A publication Critical patent/KR20050028823A/ko
Application granted granted Critical
Publication of KR100702167B1 publication Critical patent/KR100702167B1/ko
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • 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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • 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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/095—Digital circuits for control of aperture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Cameras (AREA)
  • Control Of Stepping Motors (AREA)
  • Studio Devices (AREA)
  • Exposure Control For Cameras (AREA)
KR1020040074434A 2003-09-19 2004-09-17 구동장치 및 이를 구비한 광량 조절장치 Expired - Fee Related KR100702167B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003328155A JP4181955B2 (ja) 2003-09-19 2003-09-19 光量調節装置及びカメラ
JPJP-P-2003-00328155 2003-09-19

Publications (2)

Publication Number Publication Date
KR20050028823A KR20050028823A (ko) 2005-03-23
KR100702167B1 true KR100702167B1 (ko) 2007-03-30

Family

ID=34308810

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040074434A Expired - Fee Related KR100702167B1 (ko) 2003-09-19 2004-09-17 구동장치 및 이를 구비한 광량 조절장치

Country Status (4)

Country Link
US (1) US7379665B2 (enExample)
JP (1) JP4181955B2 (enExample)
KR (1) KR100702167B1 (enExample)
CN (1) CN100468180C (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5076289B2 (ja) * 2005-07-19 2012-11-21 パナソニック株式会社 撮像装置および絞りの制御方法
KR101426552B1 (ko) * 2007-09-20 2014-08-05 엘지전자 주식회사 아이리스 장치
US20090244360A1 (en) * 2008-03-28 2009-10-01 Panasonic Corporation Camera System And Camera Body Composing The Same
JP5391731B2 (ja) * 2009-02-27 2014-01-15 リコーイメージング株式会社 レンズ交換式カメラの絞り制御装置
JP2012003083A (ja) * 2010-06-17 2012-01-05 Canon Inc 光学機器
JP2012168376A (ja) * 2011-02-15 2012-09-06 Nikon Corp モータ装置、レンズ鏡筒及びカメラ
JP2013125192A (ja) * 2011-12-15 2013-06-24 Mitsubishi Electric Corp 投射型画像表示装置、可変絞り装置の組み立て方法、可変絞り装置の原点調整方法
JP5948908B2 (ja) * 2012-01-31 2016-07-06 リコーイメージング株式会社 レンズ交換式カメラの絞り制御装置
JP2013183489A (ja) * 2012-02-29 2013-09-12 Calsonic Kansei Corp ステッピングモータの帰零、復帰処理方法および装置
CN104219453B (zh) 2014-09-28 2018-04-27 青岛海信移动通信技术股份有限公司 一种相机模组的镜头控制方法和终端
CN115567776B (zh) * 2022-09-22 2025-04-08 深圳市同为数码科技股份有限公司 摄像机光圈复位调节方法、装置、计算机设备及存储介质

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971053A (en) * 1974-01-25 1976-07-20 Nippon Kogaku K.K. Electromagnetic trigger device for use with camera capable of automatic time exposure
US5640617A (en) * 1995-10-24 1997-06-17 W. Haking Enterprises Limited Camera shutter and autofocus mechanism
JP2000330169A (ja) * 1999-05-21 2000-11-30 Minolta Co Ltd カメラ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62193530A (ja) 1986-02-18 1987-08-25 Honda Motor Co Ltd パルスモ−タ駆動式アクチユエ−タのイニシヤライズ装置
JP2599283B2 (ja) 1988-04-11 1997-04-09 株式会社コパル ステップモータを駆動源とするカメラ用絞り装置
JPH04261398A (ja) * 1991-02-12 1992-09-17 Canon Inc 移動制御装置
JPH07111617A (ja) 1993-10-12 1995-04-25 Canon Inc 露出制御装置
JPH07308098A (ja) 1994-05-12 1995-11-21 F D K Eng:Kk ステッピングモータ駆動式ネジ送りユニットのマルチチャンネル制御装置
JP2002107791A (ja) * 2000-09-29 2002-04-10 Canon Inc ステッピングモータ駆動装置およびこれを備えた装置、光量調節装置、光学機器
JP2002107792A (ja) * 2000-10-03 2002-04-10 Canon Inc 光量調節装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971053A (en) * 1974-01-25 1976-07-20 Nippon Kogaku K.K. Electromagnetic trigger device for use with camera capable of automatic time exposure
US5640617A (en) * 1995-10-24 1997-06-17 W. Haking Enterprises Limited Camera shutter and autofocus mechanism
JP2000330169A (ja) * 1999-05-21 2000-11-30 Minolta Co Ltd カメラ

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
미국특허공보 3971053
미국특허공보 5640617
일본공개특허공보 2000-330169

Also Published As

Publication number Publication date
KR20050028823A (ko) 2005-03-23
US20050063031A1 (en) 2005-03-24
JP4181955B2 (ja) 2008-11-19
CN100468180C (zh) 2009-03-11
US7379665B2 (en) 2008-05-27
CN1598682A (zh) 2005-03-23
JP2005092065A (ja) 2005-04-07

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