Title:
撮像装置及びその制御方法
Document Type and Number:
Japanese Patent JP5839850
Kind Code:
B2
Abstract:
A lens driving apparatus comprises: a zoom lens driven in an optical axis direction; first and second correction lenses capable of being driven in the optical axis direction; storage means for storing, for each predetermined focal length, positional relationships between the zoom lens, and the first and second correction lenses used for correcting a shift of an image plane upon driving of the zoom lens; position detection means for detecting a position of the second correction lens; and control means for calculating driving amounts of the first correction lens and the second correction lens, and controlling driving of the first and second correction lenses. The control means corrects an image plane position difference caused by a difference between a position of the second correction lens corresponding to a position of the zoom lens, and the detected position of the second correction lens, by moving the first correction lens.
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Inventors:
Motomiya Eiku
Application Number:
JP2011137740A
Publication Date:
January 06, 2016
Filing Date:
June 21, 2011
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B7/08; G02B7/10
Domestic Patent References:
| JP4367810A | ||||
| JP5236322A | ||||
| JP341878A | ||||
| JP2009162881A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu