JP2005215215A5 - - Google Patents

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Publication number
JP2005215215A5
JP2005215215A5 JP2004020550A JP2004020550A JP2005215215A5 JP 2005215215 A5 JP2005215215 A5 JP 2005215215A5 JP 2004020550 A JP2004020550 A JP 2004020550A JP 2004020550 A JP2004020550 A JP 2004020550A JP 2005215215 A5 JP2005215215 A5 JP 2005215215A5
Authority
JP
Japan
Prior art keywords
light
lever member
filter
light shielding
passage opening
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.)
Granted
Application number
JP2004020550A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005215215A (ja
JP4273008B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2004020550A priority Critical patent/JP4273008B2/ja
Priority claimed from JP2004020550A external-priority patent/JP4273008B2/ja
Priority to US11/042,310 priority patent/US7172349B2/en
Publication of JP2005215215A publication Critical patent/JP2005215215A/ja
Publication of JP2005215215A5 publication Critical patent/JP2005215215A5/ja
Application granted granted Critical
Publication of JP4273008B2 publication Critical patent/JP4273008B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2004020550A 2004-01-28 2004-01-28 光量調節装置および光学機器 Expired - Fee Related JP4273008B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004020550A JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器
US11/042,310 US7172349B2 (en) 2004-01-28 2005-01-24 Light amount control device and optical apparatus with guard portion to protect ND filter from lever member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004020550A JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器

Publications (3)

Publication Number Publication Date
JP2005215215A JP2005215215A (ja) 2005-08-11
JP2005215215A5 true JP2005215215A5 (enExample) 2007-03-15
JP4273008B2 JP4273008B2 (ja) 2009-06-03

Family

ID=34792616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004020550A Expired - Fee Related JP4273008B2 (ja) 2004-01-28 2004-01-28 光量調節装置および光学機器

Country Status (2)

Country Link
US (1) US7172349B2 (enExample)
JP (1) JP4273008B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4510783B2 (ja) 2006-05-23 2010-07-28 キヤノン株式会社 光学機器
JP4897475B2 (ja) * 2006-12-27 2012-03-14 セイコープレシジョン株式会社 アクチュエータ及びそれを備えたカメラ用羽根駆動装置
JP5875983B2 (ja) * 2010-08-23 2016-03-02 キヤノン電子株式会社 光量調節装置および光学機器
US9153962B2 (en) * 2013-02-13 2015-10-06 Panasonic Intellectual Property Management Co., Ltd. Motor control device and imaging apparatus with improved power source stability
CN103439852B (zh) * 2013-07-12 2015-07-15 芜湖市安曼特微显示科技有限公司 一种对比度调节装置及具有该装置的投影机
US9904146B2 (en) * 2015-10-29 2018-02-27 GM Global Technology Operations LLC Camera with positionable light shade

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2625629B2 (ja) 1993-07-14 1997-07-02 キヤノン電子株式会社 光量制御装置
JP4200408B2 (ja) * 1999-10-21 2008-12-24 ソニー株式会社 撮像装置
JP4250516B2 (ja) * 2003-12-08 2009-04-08 キヤノン株式会社 光量調節装置、光学装置および撮影装置
JP3983235B2 (ja) * 2004-08-20 2007-09-26 ニスカ株式会社 光量調整装置

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