Title:
Camera
Document Type and Number:
Japanese Patent JP5961929
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a camera operating while switching between an imaging-surface phase difference AF and a contrast AF.SOLUTION: A camera comprises: an imaging device in which pixels for imaging and pixels for focus detection are two-dimensionally arranged on an imaging surface, the pixels for imaging being arrayed over the entire imaging surface and the pixels for focus detection being arrayed on a part of the imaging surface; an imaging optical system; first focusing means which performs focusing by a phase difference detection method on the basis of output signals of the pixels for focus detection; second focusing means which performs focusing by a contrast method on the basis of output signals of the pixels for imaging; image processing means which recognizes a main object; switching prediction means which predicts switching from one to the other of the first and second focusing means on the basis of a positional relationship between the main object and a focus detection area; start-up means which, when the switching is predicted, starts the other focusing means; and switching means which, after the other focusing means is started, switching from the one to the other focusing means.
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Inventors:
Tetsuo
Hiroaki Takahara
Hiroaki Takahara
Application Number:
JP2011137206A
Publication Date:
August 03, 2016
Filing Date:
June 21, 2011
Export Citation:
Assignee:
NIKON CORPORATION
International Classes:
G02B7/28; G02B7/34; G02B7/36; G03B13/36; H04N5/232
Domestic Patent References:
| JP2010193139A | ||||
| JP2010139563A | ||||
| JP2006301150A | ||||
| JP2006235616A | ||||
| JP2010130434A |
Foreign References:
| WO2005025212A1 |
Attorney, Agent or Firm:
Fuyuki Nagai
Takao Watanabe
Takao Watanabe