Title:
光量調整装置
Document Type and Number:
Japanese Patent JP6410782
Kind Code:
B2
Abstract:
A light amount adjustment device of this invention includes a light path forming member including an aperture which forms a light path, a plurality of light amount adjustment members which adjust the amount of light which passes through the aperture, and a plurality of movement means for linearly advancing and retracting the light amount adjustment members with respect to the aperture.
Inventors:
Osamu Sato
Kyosuke Miyashita
Kyosuke Miyashita
Application Number:
JP2016231836A
Publication Date:
October 24, 2018
Filing Date:
November 29, 2016
Export Citation:
Assignee:
Canon Electronics Inc.
International Classes:
G03B11/00
Domestic Patent References:
| JP2002176543A | ||||
| JP2006307951A | ||||
| JP2000162665A | ||||
| JP2003114461A | ||||
| JP11205639A |
Foreign References:
| WO2014119277A1 |
Attorney, Agent or Firm:
Yasunori Otsuka
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Yasuhiro Otsuka
Shiro Takayanagi
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu