JP4164378B2 - 光量調節装置 - Google Patents

光量調節装置 Download PDF

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Publication number
JP4164378B2
JP4164378B2 JP2003025396A JP2003025396A JP4164378B2 JP 4164378 B2 JP4164378 B2 JP 4164378B2 JP 2003025396 A JP2003025396 A JP 2003025396A JP 2003025396 A JP2003025396 A JP 2003025396A JP 4164378 B2 JP4164378 B2 JP 4164378B2
Authority
JP
Japan
Prior art keywords
stator
magnet
rotating body
amount adjusting
light amount
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
JP2003025396A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004233915A (ja
JP2004233915A5 (cg-RX-API-DMAC7.html
Inventor
宮脇　　誠
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 JP2003025396A priority Critical patent/JP4164378B2/ja
Priority to US10/766,387 priority patent/US7104707B2/en
Priority to CNB2004100032901A priority patent/CN1329774C/zh
Publication of JP2004233915A publication Critical patent/JP2004233915A/ja
Publication of JP2004233915A5 publication Critical patent/JP2004233915A5/ja
Application granted granted Critical
Publication of JP4164378B2 publication Critical patent/JP4164378B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G03B9/08—Shutters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
  • Shutters For Cameras (AREA)
JP2003025396A 2003-02-03 2003-02-03 光量調節装置 Expired - Fee Related JP4164378B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003025396A JP4164378B2 (ja) 2003-02-03 2003-02-03 光量調節装置
US10/766,387 US7104707B2 (en) 2003-02-03 2004-01-28 Light quantity adjusting device
CNB2004100032901A CN1329774C (zh) 2003-02-03 2004-02-03 光量调节装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003025396A JP4164378B2 (ja) 2003-02-03 2003-02-03 光量調節装置

Publications (3)

Publication Number Publication Date
JP2004233915A JP2004233915A (ja) 2004-08-19
JP2004233915A5 JP2004233915A5 (cg-RX-API-DMAC7.html) 2005-09-22
JP4164378B2 true JP4164378B2 (ja) 2008-10-15

Family

ID=32953691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003025396A Expired - Fee Related JP4164378B2 (ja) 2003-02-03 2003-02-03 光量調節装置

Country Status (3)

Country Link
US (1) US7104707B2 (cg-RX-API-DMAC7.html)
JP (1) JP4164378B2 (cg-RX-API-DMAC7.html)
CN (1) CN1329774C (cg-RX-API-DMAC7.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4849516B2 (ja) * 2005-10-21 2012-01-11 キヤノン株式会社 駆動装置及び光量調節装置
US7513702B2 (en) * 2005-11-16 2009-04-07 Va, Inc. Non-contact shutter activation system and method
US20070172231A1 (en) * 2006-01-26 2007-07-26 Melles Griot, Inc. Rotor magnet driven optical shutter assembly
US7883280B2 (en) * 2008-03-12 2011-02-08 Va, Inc. Shutter activation system
US8128296B2 (en) * 2009-01-26 2012-03-06 Va, Inc. Shutter assembly
US8313255B2 (en) * 2009-01-26 2012-11-20 Va, Inc. Shutter assembly with drive ring-mounted magnet
JP2010204206A (ja) * 2009-02-27 2010-09-16 Sony Corp 光量調整装置、レンズ鏡筒、撮像装置、及び撮像装置の制御方法
DE102010021478B4 (de) * 2010-01-28 2012-12-27 Leica Camera Ag Vorrichtung zur Steuerung eines Zentralverschlusses
US8333521B2 (en) 2010-04-01 2012-12-18 Va, Inc. Shutter assembly with rotating magnet
CN112433419B (zh) * 2017-02-24 2022-03-25 大立光电股份有限公司 遮光片、光学镜片组、成像镜头与电子装置
JP7474375B1 (ja) * 2023-08-22 2024-04-24 エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド 羽根駆動装置、撮像装置及び携帯型電子機器
JP7490874B1 (ja) * 2023-09-20 2024-05-27 エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド 撮像モジュール及び電子機器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644096Y2 (cg-RX-API-DMAC7.html) * 1985-10-31 1989-02-02
US4693580A (en) * 1985-12-31 1987-09-15 Canon Kabushiki Kaisha Motor
US5592136A (en) * 1993-06-17 1997-01-07 Olympus Optical Co., Ltd. Electromagnet apparatus and apparatus for adjusting exposure of camera using the same
US6139202A (en) * 1998-12-08 2000-10-31 Eastman Kodak Company Aperture/shutter system with a motor component
JP2000352737A (ja) * 1999-06-14 2000-12-19 Canon Inc 光量調節装置およびこれを備えた機器
JP4636658B2 (ja) * 2000-08-02 2011-02-23 キヤノン株式会社 光量調整装置
TW556406B (en) * 2001-03-12 2003-10-01 Canon Kk Driving device, light amount controller
JP3950756B2 (ja) * 2002-07-10 2007-08-01 キヤノン株式会社 駆動装置及び光量調節装置

Also Published As

Publication number Publication date
US20040184800A1 (en) 2004-09-23
JP2004233915A (ja) 2004-08-19
US7104707B2 (en) 2006-09-12
CN1329774C (zh) 2007-08-01
CN1519638A (zh) 2004-08-11

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