Title:
BLADE DRIVE DEVICE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2016102830
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a blade drive device and an imaging apparatus which can effectively suppress upward warpage of a blade group.SOLUTION: A blade drive device includes: a plurality of blades 3 annularly arranged around a light passing route (opening 11 of a ground plate 1, an opening 22 of a drive ring 2); and the drive ring 2 for rotating the plurality of blades 3. The plurality of blades 3 include engagement parts (operation shafts 31) for engaging with each of cam grooves 23 provided to the drive ring 2. At least a portion of each of the cam groove 23 is provided in a manner to slant toward the outside in a radial direction of the drive ring 2. The blade drive device may be included by an image apparatus.SELECTED DRAWING: Figure 1
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Inventors:
SHIBATA MITSUO
Application Number:
JP2014239645A
Publication Date:
June 02, 2016
Filing Date:
November 27, 2014
Export Citation:
Assignee:
CANON DENSHI KK
International Classes:
G03B9/06
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