Title:
羽根駆動装置及び撮像装置
Document Type and Number:
Japanese Patent JP6982986
Kind Code:
B2
Abstract:
To suppress change in a position of a diaphragm relative to an optical axis caused by overlapping of diaphragm blades with each other.SOLUTION: A blade driving device includes: a plurality of diaphragm blades for forming a diaphragm opening by going into and out of a light passage opening; a drive ring for driving the diaphragm blades; and a base member that rotatably supports the drive ring and has the light passage opening. The blade driving device includes a suppressing member for suppressing displacement in a light passage direction of a blade tip when the blade tip of the plurality of diaphragm blades enters into the light passage opening to form the diaphragm opening.SELECTED DRAWING: Figure 1
Inventors:
Takahito Yoshizawa
Application Number:
JP2017109756A
Publication Date:
December 17, 2021
Filing Date:
June 02, 2017
Export Citation:
Assignee:
Canon Electronics Inc.
International Classes:
G03B9/06
Domestic Patent References:
| JP60003821U | ||||
| JP2017003993A | ||||
| JP2001083566A | ||||
| JP2013097178A | ||||
| JP2017058680A | ||||
| JP2016102830A | ||||
| JP2008134283A | ||||
| JP61121429U | ||||
| JP2015049430A | ||||
| JP2014013365A |
Attorney, Agent or Firm:
Patent Business Corporation Otsuka International Patent Office
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu