Title:
An imaging device and a focus control method
Document Type and Number:
Japanese Patent JP6028112
Kind Code:
B2
Abstract:
The present invention provides an imaging device and a focusing control method capable of reliably preventing the accuracy of a focusing control from being lowered even in a case where a signal level of a phase difference detection pixel is low. A system control unit (11) calculates, using detections signals of phase difference detection pixels (52A, 52B) obtained by each of two instances of imaging which are consecutively performed by an imaging element (5), first defocus amounts for each instance of imaging, adds up detection signals corresponding to the detection signals of the phase difference detection pixels (52), among captured image signals obtained by each of two instances of imaging, calculates a second defocus amount using signals after addition, and compares the plural of first defocus amounts and the second defocus amount to determine whether to perform a focusing control based on the second defocus amount.
Inventors:
Koichi Tanaka
Application Number:
JP2015561151A
Publication Date:
November 16, 2016
Filing Date:
October 08, 2014
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B7/28; G02B7/34; G02B7/36; G03B13/36; H04N5/232
Domestic Patent References:
| JP2012008212A | 2012-01-12 | |||
| JP2008085738A | 2008-04-10 | |||
| JPH03161726A | 1991-07-11 |
Attorney, Agent or Firm:
Takeshi Takamatsu
Toshiyuki Ozawa
Toshiyuki Ozawa
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