Title:
絞り装置、レンズ装置、および撮像装置
Document Type and Number:
Japanese Patent JP7204362
Kind Code:
B2
Abstract:
To provide an aperture device which is advantageous, for example, in reducing friction resistance among aperture blades.SOLUTION: An aperture device of the present invention comprises: a plurality of aperture blades, each having a drive pin and a rotation center pin; a support member for rotatably supporting the rotation center pins; a cam member having cams to be engaged with the drive pins; and a separation member for separating two of the aperture blades from the rest.SELECTED DRAWING: Figure 2
Inventors:
Yusuke Konishi
Application Number:
JP2018135507A
Publication Date:
January 16, 2023
Filing Date:
July 19, 2018
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B9/06
Domestic Patent References:
| JP2000250093A | ||||
| JP2002277924A | ||||
| JP2013228493A | ||||
| JP2007057656A |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Koji Yoshizawa
Aki Honda
Takao Ochi
Koji Yoshizawa
Aki Honda