Title:
FOCAL PLANE SHUTTER UNIT AND IMAGING DEVICE
Document Type and Number:
Japanese Patent JP2015148780
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To simplify a structure of a focal plane shutter unit.SOLUTION: A focal plane shutter unit comprises: a first drive lever that drives a first shutter blade; a first urging member that urges the first drive lever; a second drive lever that drives a second shutter blade; a second urging member that urges a second drive lever; a charge member that charges the first drive lever against urging force of the first urging member and holds a state where the first drive lever is charged after charging the second drive lever against urging force of the second urging member, and further releases the first drive lever to drive the first drive lever by the urging force of the first urging member; and a latch member that, after holding a state where the second drive lever is charged by the charge member, releases the second drive lever to drive the second drive lever by the urging force of the second urging member.
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Inventors:
KURAMOTO SHINICHI
CHIJIIWA TOMOKI
CHIJIIWA TOMOKI
Application Number:
JP2014023057A
Publication Date:
August 20, 2015
Filing Date:
February 10, 2014
Export Citation:
Assignee:
NIKON CORP
International Classes:
G03B9/36
Domestic Patent References:
| JP2007228056A | 2007-09-06 | |||
| JPS5172038U | 1976-06-07 | |||
| JP2010231154A | 2010-10-14 | |||
| JP2005309234A | 2005-11-04 |
Foreign References:
| US20050238346A1 | 2005-10-27 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation
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