Invention Grant
- Patent Title: Imaging device and focusing control method
-
Application No.: US15202114Application Date: 2016-07-05
-
Publication No.: US09794471B2Publication Date: 2017-10-17
- Inventor: Koichi Tanaka
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2014-022469 20140207
- Main IPC: H04N5/225
- IPC: H04N5/225 ; H04N5/232 ; G02B7/34 ; H04N9/04 ; G02B7/28 ; G02B7/36 ; H04N5/369 ; G03B13/36

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.
Public/Granted literature
- US20160316136A1 IMAGING DEVICE AND FOCUSING CONTROL METHOD Public/Granted day:2016-10-27
Information query