Title:
BLADE DRIVE DEVICE AND LIGHT-AMOUNT ADJUSTMENT, AS WELL AS IMAGING DEVICE
Document Type and Number:
Japanese Patent JP2016090589
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blade drive device and light-amount device, as well as imaging device that allow a stable drive of blades to be attained.SOLUTION: A blade drive device comprises: aperture formation members 1 and 7 that have an aperture part through which light passes; and a traverse blade 5 that rotates in a state where the traverse blade traverses aperture parts 1a and 7a of the aperture formation members 1 and 7. The traverse blade 5 has a rear end part 5f that partially protrudes on an opposite side in a blade advance direction of a side of the aperture parts 1a and 7a of one end part 5e serving as a free end, and the traverse blade 5 rotates over the aperture parts 1a and 7a as leaving a state with the rear end part 5f substantially overlapped with respect to a peripheral edge part of the aperture parts 1a and 7a.SELECTED DRAWING: Figure 1
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Inventors:
INUI YUSUKE
Application Number:
JP2014220297A
Publication Date:
May 23, 2016
Filing Date:
October 29, 2014
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/02
Domestic Patent References:
| JP2003348815A | 2003-12-05 | |||
| JPH1138467A | 1999-02-12 |