Title:
IMAGING DEVICE, IMAGING METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/171696
Kind Code:
A1
Abstract:
An imaging device comprises: an imaging lens including a focus lens; an imaging section for outputting an image signal obtained by capturing an optical image passing through the imaging lens; an image formation unit for generating a captured image in accordance with the image signal; a movement unit for displacing the focus lens along the optical axis; a control unit that, when the movement unit displaces the focus lens, sets a measurement range for the captured image to a size in accordance with the rate of change in the image magnification of the focus lens which changes with the displacement of the focus lens; and a detection unit that detects a position of the focus lens at which the contrast value for the image in the measurement range set by the control unit reaches a peak, the contrast value changing with the displacement of the focus lens by the movement unit. The movement unit displaces the focus lens to the position detected by the detection unit.
Inventors:
TANAKA KOICHI (JP)
HAYASHI KENKICHI (JP)
UCHIDA AKIHIRO (JP)
IZAWA SEIICHI (JP)
FUJIKI SHINICHIRO (JP)
HAYASHI KENKICHI (JP)
UCHIDA AKIHIRO (JP)
IZAWA SEIICHI (JP)
FUJIKI SHINICHIRO (JP)
Application Number:
PCT/JP2018/045512
Publication Date:
September 12, 2019
Filing Date:
December 11, 2018
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B7/36; G03B13/36; G03B17/18; H04N5/232
Foreign References:
| JP2014137583A | 2014-07-28 | |||
| JP2010096962A | 2010-04-30 | |||
| JP2014006477A | 2014-01-16 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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