Title:
レンズ鏡筒及びその制御方法、撮像装置
Document Type and Number:
Japanese Patent JP6746408
Kind Code:
B2
Abstract:
The present invention relates to a technique to insert and remove an optical element into and from an optical path of an image pickup optical system. A first drive mechanism (12) moves a first element (34) in an optical axis direction. A second element (23) is located at an image surface side of the first element and is selectively inserted in the optical path. A second drive mechanism (24) moves a holding member (18) holding the second element in a direction different from an optical axis. A control unit (65) controls the first drive mechanism to move the first element to an object side to a position where the first element and the holding member are not overlapped when viewing in a direction perpendicular to the optical axis, controls the second drive mechanism to remove the second element from the optical path, when they are overlapped.
Inventors:
Akihiko Nishide
Application Number:
JP2016136009A
Publication Date:
August 26, 2020
Filing Date:
July 08, 2016
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B7/04; G02B7/02; G02B7/08; G03B11/00; H04N5/225
Domestic Patent References:
| JP2004151131A | ||||
| JP2004145029A | ||||
| JP2012027156A | ||||
| JP2010008801A | ||||
| JP2015138169A | ||||
| JP2015184518A | ||||
| JP2001255444A |
Foreign References:
| US20070154208 |
Attorney, Agent or Firm:
Another role Shigehisa