The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Mar. 14, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Makoto Yokozeki, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 5/225 (2006.01); H04N 5/232 (2006.01); G02B 7/34 (2006.01); G02B 7/38 (2006.01); G02B 7/28 (2006.01);
U.S. Cl.
CPC ...
H04N 5/23212 (2013.01); G02B 7/285 (2013.01); G02B 7/34 (2013.01); G02B 7/38 (2013.01);
Abstract
In an automatic focus adjustment apparatus, a setting unit sets, on an image sensor, a first range in which defocus information is detected using a phase difference detection and a second range in which a focus state is detected using a contrast detection. The second range is set so as to include the first range. In a case where the second range is detected by the contrast detection as being in an in-focus state, a control unit changes a control mode into a predetermined control mode in which the driving of the focus lens is limited according to the defocus information in the first range detected by the phase difference detection.