Title:
CAMERA FOCAL PLANE SHUTTER
Document Type and Number:
Japanese Patent JP2015068906
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a camera focal plane shutter that enable effective suppression of bounces of shutter blades when ending a shutter blade action.SOLUTION: A camera focal plane shutter is configured in such a way that an arm 13 supporting a front blade and an arm 16 supporting a rear blade are configured by a magnetic substance, permanent magnets 19 and 20 are disposed in portions of a facing shutter base plate 1 at a position where rotation positions of the arms 13 and 16 to stop travelling of shutter blades 15 and 18 upon an exposure action are exceeded by a predetermined amount and suction force is affected between the arms and the permanent magnets.
Inventors:
NITTA HIROSHI
Application Number:
JP2013201312A
Publication Date:
April 13, 2015
Filing Date:
September 27, 2013
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/08; G03B9/36; G03B17/02
Attorney, Agent or Firm:
Shinohara International Patent Office
Yasushi Shinohara
Masayuki Fujinaka
Kazuhiro Suzuki
Yasushi Shinohara
Masayuki Fujinaka
Kazuhiro Suzuki
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