FOCUSING POSITION DETECTING APPARATUS, IMAGING APPARATUS AND FOCUSING POSITION DETECTING METHOD

PURPOSE: A focusing position detecting apparatus, a photographing apparatus and a focusing position detecting method are provided to increase detection accuracy of a focusing position during focus control. CONSTITUTION: A driver(143) and a motor(144) operate a focus lens from one end to the other en...

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Bibliographic Details
Main Authors HAMAMURA TOSHIHIRO, TANAKA TOSHIYUKI, ENDO YUKI, MORIYA TSUYOSHI, TAKAFUJI NAOKI
Format Patent
LanguageEnglish
Korean
Published 09.03.2010
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
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PURPOSE: A focusing position detecting apparatus, a photographing apparatus and a focusing position detecting method are provided to increase detection accuracy of a focusing position during focus control. CONSTITUTION: A driver(143) and a motor(144) operate a focus lens from one end to the other end as the first operation during focus control. The focus lens is operated about a location where a contrast value becomes a peak value during the first driving as the second driving and proximity of the location. An iris controller(126) controls a light amount applied from a photographing surface from a subject image during the first driving based on an iris value. The iris controller controls the light amount based on the iris value used in photographing during the second operation.
Bibliography:Application Number: KR20090014032