发明名称 AUTOMATIC FOCUSING APPARATUS AND IMAGE PICKUP APPARATUS
摘要 An automatic focusing apparatus performs focusing a first automatic focusing method in which lens drive control is performed based on a focus signal so that a focus lens is moved to an in-focus point, and a second automatic focusing method in which lens drive control is performed based on information corresponding to an object distance so that the focus lens is moved to an in-focus point. The direction in which the focus lens is moved to the in-focus point according to the second automatic focusing method is compared with the direction in which the focus lens is moved to the in-focus point according to the first automatic focusing method. Based on the result, it is determined whether to perform the lens drive control according to the second automatic focusing method.
申请公布号 US2008043136(A1) 申请公布日期 2008.02.21
申请号 US20070834427 申请日期 2007.08.06
申请人 CANON KABUSHIKI KAISHA 发明人 YAMAZAKI TATSUYA
分类号 G03B13/00 主分类号 G03B13/00
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