JP2001154234A5 - - Google Patents

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Publication number
JP2001154234A5
JP2001154234A5 JP1999337992A JP33799299A JP2001154234A5 JP 2001154234 A5 JP2001154234 A5 JP 2001154234A5 JP 1999337992 A JP1999337992 A JP 1999337992A JP 33799299 A JP33799299 A JP 33799299A JP 2001154234 A5 JP2001154234 A5 JP 2001154234A5
Authority
JP
Japan
Prior art keywords
stepping motor
light amount
pulse rate
rotor magnet
state
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
JP1999337992A
Other languages
English (en)
Japanese (ja)
Other versions
JP4194199B2 (ja
JP2001154234A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP33799299A priority Critical patent/JP4194199B2/ja
Priority claimed from JP33799299A external-priority patent/JP4194199B2/ja
Publication of JP2001154234A publication Critical patent/JP2001154234A/ja
Publication of JP2001154234A5 publication Critical patent/JP2001154234A5/ja
Application granted granted Critical
Publication of JP4194199B2 publication Critical patent/JP4194199B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP33799299A 1999-11-29 1999-11-29 光量調節装置および撮像装置 Expired - Fee Related JP4194199B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP33799299A JP4194199B2 (ja) 1999-11-29 1999-11-29 光量調節装置および撮像装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP33799299A JP4194199B2 (ja) 1999-11-29 1999-11-29 光量調節装置および撮像装置

Publications (3)

Publication Number Publication Date
JP2001154234A JP2001154234A (ja) 2001-06-08
JP2001154234A5 true JP2001154234A5 (https=) 2007-01-18
JP4194199B2 JP4194199B2 (ja) 2008-12-10

Family

ID=18313932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP33799299A Expired - Fee Related JP4194199B2 (ja) 1999-11-29 1999-11-29 光量調節装置および撮像装置

Country Status (1)

Country Link
JP (1) JP4194199B2 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4737939B2 (ja) * 2004-02-25 2011-08-03 日本電産コパル株式会社 カメラ用羽根駆動装置
KR101177450B1 (ko) 2005-02-28 2012-08-27 삼성전자주식회사 카메라용 셔터 장치
JP2008209541A (ja) * 2007-02-26 2008-09-11 Sony Corp レンズ鏡筒および撮像装置

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