Title:
BLADE DRIVING DEVICE AND IMAGING APPARATUS INCLUDING THE SAME
Document Type and Number:
Japanese Patent JP2022149137
Kind Code:
A
Abstract:
To provide a blade driving device that can be operated at high speed while reducing the influence of partition plates partitioning a front blade chamber and a rear blade chamber from each other on blades.SOLUTION: A blade driving device 1 comprises: a pair of bottom boards 10, 12 in which an opening S is formed; front blades 31-34 that are movable between a first closing position for closing the opening S and a first retracted position located on a -Y direction side of the opening S; rear blades 35-38 that are movable between a second retracted position located on a +Y direction side of the opening S and a second closing position for closing the opening S; and a pair of partition plates 51, 52 that partition a space formed between the bottom boards 10, 12 into a front blade chamber R1 accommodating the front blades 31-34 and a rear blade chamber R2 accommodating the rear blades 35-38. The pair of partition plates 51, 52 include the first partition plate 51 that extends on the periphery of a first area S1 located on the -Y direction side of the opening S, and a second partition plate 52 that extends on the periphery of a second area S2 located on the +Y direction side of the opening S. The first partition plate 51 and the second partition plate 52 are different in at least one of material and thickness.SELECTED DRAWING: Figure 2
Inventors:
KAWAKAMI KENTA
Application Number:
JP2021051148A
Publication Date:
October 06, 2022
Filing Date:
March 25, 2021
Export Citation:
Assignee:
NIDEC COPAL CORP
International Classes:
G03B9/36
Attorney, Agent or Firm:
Tomohiro Mori
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