Title:
LENS DEVICE, IMAGING APPARATUS AND CONTROL METHOD
Document Type and Number:
Japanese Patent JP2019074671
Kind Code:
A
Abstract:
To decrease both of fluctuations in aberration amounts and an out-of-focus state caused by an optical element disposed between a lens device and an image sensor.SOLUTION: An interchangeable lens 100 has: an optical system 110 including a first focus lens group 103 and a second focus lens group 104, which move along different loci from each other upon focusing; and a lens control unit 112 for controlling positions of the first focus lens group 103 and the second focus lens group 104. The lens control unit 112 controls positions of the first focus lens group 103 and the second focus lens group 104 based on target positions of the first focus lens group 103 and the second focus lens group 104 determined in accordance with information relating to an optical element disposed between the optical system 110 and an image sensor 207.SELECTED DRAWING: Figure 1
Inventors:
KOBAYASHI KANA
Application Number:
JP2017201416A
Publication Date:
May 16, 2019
Filing Date:
October 17, 2017
Export Citation:
Assignee:
CANON KK
International Classes:
G02B15/22; G02B7/02; G02B7/08; G02B7/10; G02B13/18; G02B15/20; G03B17/14; G03B17/56
Attorney, Agent or Firm:
Takuma Abe
Sogo Kuroiwa
Sogo Kuroiwa