Title:
羽根駆動装置及び撮像装置
Document Type and Number:
Japanese Patent JP6993851
Kind Code:
B2
Abstract:
To configure a blade driving member by two members, and achieve thinness of the device.SOLUTION: A blade driving device comprises: a blade that opens/closes an aperture of a base plate; a driving spring that travels the blade and exerts urging force for exposing the aperture; a first rotary member that is linked to the driving spring; a second rotary member that is rotatably supported on a co-axis with the first rotary member, and opens/closes the blade; a charge mechanism that rotates the first rotary member to a charge position to charge the driving spring; a holding mechanism that holds the first rotary member at the charge position by magnetic force; and a lock mechanism that locks the second rotary member and can keep the blade in an open state. The first rotary member includes a support part that supports an armature, and the support part has a wall part that extends in an optical axis direction, and faces the armature. At a portion on an opposite side of the armature of the wall part, an abutting part is formed that abuts with the second rotary member and rotates the second rotary member as well, together with the first rotary member.SELECTED DRAWING: Figure 30
Inventors:
Takahiro Arai
Kentaro Kato
Naoki Kawakubo
Yuki Saito
Hisashi Ito
Kentaro Kato
Naoki Kawakubo
Yuki Saito
Hisashi Ito
Application Number:
JP2017221965A
Publication Date:
January 14, 2022
Filing Date:
November 17, 2017
Export Citation:
Assignee:
Canon Electronics Inc.
International Classes:
G03B9/28; G03B9/36
Domestic Patent References:
| JP4931986B2 | ||||
| JP2014059354A | ||||
| JP2017015903A | ||||
| JP2045536U |
Attorney, Agent or Firm:
Patent Business Corporation Otsuka International Patent Office
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yumitsu
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yumitsu