JP4378039B2 - モータ、光量調整装置およびレンズ鏡筒 - Google Patents

モータ、光量調整装置およびレンズ鏡筒 Download PDF

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Publication number
JP4378039B2
JP4378039B2 JP2000228087A JP2000228087A JP4378039B2 JP 4378039 B2 JP4378039 B2 JP 4378039B2 JP 2000228087 A JP2000228087 A JP 2000228087A JP 2000228087 A JP2000228087 A JP 2000228087A JP 4378039 B2 JP4378039 B2 JP 4378039B2
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Japan
Prior art keywords
magnet
magnetic pole
stator
motor
peripheral surface
Prior art date
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Expired - Fee Related
Application number
JP2000228087A
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English (en)
Japanese (ja)
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JP2002051524A (ja
JP2002051524A5 (enExample
Inventor
力 青島
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2000228087A priority Critical patent/JP4378039B2/ja
Priority to US09/910,046 priority patent/US6798093B2/en
Publication of JP2002051524A publication Critical patent/JP2002051524A/ja
Priority to US10/434,060 priority patent/US6800970B2/en
Publication of JP2002051524A5 publication Critical patent/JP2002051524A5/ja
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Publication of JP4378039B2 publication Critical patent/JP4378039B2/ja
Anticipated expiration legal-status Critical
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  • Diaphragms For Cameras (AREA)
JP2000228087A 2000-07-28 2000-07-28 モータ、光量調整装置およびレンズ鏡筒 Expired - Fee Related JP4378039B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000228087A JP4378039B2 (ja) 2000-07-28 2000-07-28 モータ、光量調整装置およびレンズ鏡筒
US09/910,046 US6798093B2 (en) 2000-07-28 2001-07-23 Dual coil permanent magnet motor having inner annular member
US10/434,060 US6800970B2 (en) 2000-07-28 2003-05-09 Motor and optical apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000228087A JP4378039B2 (ja) 2000-07-28 2000-07-28 モータ、光量調整装置およびレンズ鏡筒

Publications (3)

Publication Number Publication Date
JP2002051524A JP2002051524A (ja) 2002-02-15
JP2002051524A5 JP2002051524A5 (enExample) 2007-08-23
JP4378039B2 true JP4378039B2 (ja) 2009-12-02

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ID=18721446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000228087A Expired - Fee Related JP4378039B2 (ja) 2000-07-28 2000-07-28 モータ、光量調整装置およびレンズ鏡筒

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JP (1) JP4378039B2 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP4164297B2 (ja) 2002-07-11 2008-10-15 キヤノン株式会社 駆動装置、光量調節装置及びレンズ駆動装置
JP2005234210A (ja) * 2004-02-19 2005-09-02 Alps Electric Co Ltd レンズ移動機構
JP4681874B2 (ja) 2004-12-24 2011-05-11 キヤノン株式会社 駆動装置
JP4669436B2 (ja) 2006-04-27 2011-04-13 キヤノン株式会社 鏡筒駆動装置
JP6051033B2 (ja) * 2012-12-17 2016-12-21 キヤノン電子株式会社 光量調節装置および光学機器

Also Published As

Publication number Publication date
JP2002051524A (ja) 2002-02-15

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