AUTOFOCUS DEVICE

PROBLEM TO BE SOLVED: To appropriately set a focus area even when switching a focus detection system in a device where a plurality of focus areas are grouped in hybrid AF. SOLUTION: When the group Gr1 is selected, focus detection of the focus areas Ar8 to Ar11 in the group is performed by a phase di...

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Bibliographic Details
Main Author SATANI DAISUKE
Format Patent
LanguageEnglish
Published 28.12.2006
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To appropriately set a focus area even when switching a focus detection system in a device where a plurality of focus areas are grouped in hybrid AF. SOLUTION: When the group Gr1 is selected, focus detection of the focus areas Ar8 to Ar11 in the group is performed by a phase difference detection system, and a focusing lens is driven based on the result of the focus detection. Before the focusing lens reaches a focusing position, the device is switched to contrast AF. In the contrast AF, a zone Zn1 involving the areas Ar8 to Ar11 becomes the focus area. COPYRIGHT: (C)2007,JPO&INPIT
Bibliography:Application Number: JP20050179064