Title:
CAMERA FOCAL PLANE SHUTTER AND DIGITAL CAMERA INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2016177308
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shutter that is low in cost of a change-over mechanism of a normally opening and normally closure, high in degree of freedom in arrangement of an actuator, and less in power consumption.SOLUTION: A camera focal plane shutter comprises a change-over mechanism 18 that changes over a method opening a picture frame and method closing the picture frame at a standby after an exposure operation is implemented. The change-over mechanism 18 includes a suppression member 18a-1 that has: an electromagnet 18b to be electrified only in a one-sided direction; a lock part 18a-1capable of locking a locked part 11c of a front blade first drive member 11, in which a direction of force with respect to the electromagnet 18b is changed in responce to a changeover of the electrification to the electromagnet 18a and a release of the electrification; and an operation unit moving the lock part 18a-1to a position capable of releasing the locking with the locked part 11c when electrified, and moving the lock part to a position capable of locking the locked part 11c when the electrification is released. In responce to the locking with respect to the locked part 11c by the lock part 18a-1and the locking release prior to the standby after the exposure operation is implemented, suppression of rotation and suppression release in a direction closing an exposure aperture of a front blade with respect to the front blade first drive member 11 are changed over.SELECTED DRAWING: Figure 1
Inventors:
TANAKA YASUO
Application Number:
JP2016098704A
Publication Date:
October 06, 2016
Filing Date:
May 17, 2016
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/28
Domestic Patent References:
| JP2011174870A | 2011-09-08 | |||
| JP2004212452A | 2004-07-29 | |||
| JP2012063448A | 2012-03-29 | |||
| JPH0756212A | 1995-03-03 | |||
| JPS59137A | 1984-01-05 |
Foreign References:
| US20120328280A1 | 2012-12-27 |
Attorney, Agent or Firm:
Eichi International Patent Office
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