JP4181955B2 - 光量調節装置及びカメラ - Google Patents

光量調節装置及びカメラ Download PDF

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Publication number
JP4181955B2
JP4181955B2 JP2003328155A JP2003328155A JP4181955B2 JP 4181955 B2 JP4181955 B2 JP 4181955B2 JP 2003328155 A JP2003328155 A JP 2003328155A JP 2003328155 A JP2003328155 A JP 2003328155A JP 4181955 B2 JP4181955 B2 JP 4181955B2
Authority
JP
Japan
Prior art keywords
light amount
camera
amount adjusting
amount adjustment
adjusting device
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
JP2003328155A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005092065A5 (enExample
JP2005092065A (ja
Inventor
宏之 和田
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 JP2003328155A priority Critical patent/JP4181955B2/ja
Priority to US10/942,641 priority patent/US7379665B2/en
Priority to KR1020040074434A priority patent/KR100702167B1/ko
Priority to CNB2004100787969A priority patent/CN100468180C/zh
Publication of JP2005092065A publication Critical patent/JP2005092065A/ja
Publication of JP2005092065A5 publication Critical patent/JP2005092065A5/ja
Application granted granted Critical
Publication of JP4181955B2 publication Critical patent/JP4181955B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Cameras (AREA)
  • Exposure Control For Cameras (AREA)
  • Studio Devices (AREA)
  • Control Of Stepping Motors (AREA)
JP2003328155A 2003-09-19 2003-09-19 光量調節装置及びカメラ Expired - Fee Related JP4181955B2 (ja)

Priority Applications (4)

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
US10/942,641 US7379665B2 (en) 2003-09-19 2004-09-16 Driving device and light-amount adjusting device provided with the same
KR1020040074434A KR100702167B1 (ko) 2003-09-19 2004-09-17 구동장치 및 이를 구비한 광량 조절장치
CNB2004100787969A CN100468180C (zh) 2003-09-19 2004-09-17 驱动装置及装备该驱动装置的光通量调节装置

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
JP2005092065A JP2005092065A (ja) 2005-04-07
JP2005092065A5 JP2005092065A5 (enExample) 2006-11-02
JP4181955B2 true JP4181955B2 (ja) 2008-11-19

Family

ID=34308810

Family Applications (1)

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

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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746050B2 (enExample) * 1974-01-25 1982-10-01
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
GB2306682A (en) * 1995-10-24 1997-05-07 Haking W Ets Ltd Camera shutter and film drive
JP2000330169A (ja) * 1999-05-21 2000-11-30 Minolta Co Ltd カメラ
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

Also Published As

Publication number Publication date
CN100468180C (zh) 2009-03-11
KR20050028823A (ko) 2005-03-23
KR100702167B1 (ko) 2007-03-30
JP2005092065A (ja) 2005-04-07
US20050063031A1 (en) 2005-03-24
CN1598682A (zh) 2005-03-23
US7379665B2 (en) 2008-05-27

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