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.

Date of Patent:
May. 13, 2014

Filed:

May. 23, 2011
Applicants:

Hisashi Ishiwata, Tokyo, JP;

Makibi Nakamura, Tokyo, JP;

Inventors:

Hisashi Ishiwata, Tokyo, JP;

Makibi Nakamura, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A focus control device includes: an in-detection-range focal depth number calculation section that calculates the number of in-detection-range focal depths as the number of focal depths, which are divided as division units and each of which depends on a position of a focus lens, in accordance with a detection range in which the focus lens is shifted in order to detect the contrast of a captured image signal; a detection interval determination section that determines the number of in-detection-interval focal depths, which represents the number of focal depths as the division units, as a detection interval in the detection range, in accordance with the calculated number of in-detection-range focal depths; and a focus lens shift instruction section that instructs a lens section to perform a focus search which shifts the focus lens by specifying the detection range and the number of in-detection-interval focal depths determined as the detection interval.


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