发明名称 AUTOMATIC FOCUSING APPARATUS AND CONTROL METHOD THEREFOR
摘要 An automatic focusing apparatus detects presence or absence of change in a distance between an object and the automatic focusing apparatus while operating in an operation mode to continuously perform an adjustment of the position of a focus lens to focus on the object, and stops a movement of the focus lens if a change in the distance is not detected.
申请公布号 US2010067891(A1) 申请公布日期 2010.03.18
申请号 US20090560212 申请日期 2009.09.15
申请人 CANON KABUSHIKI KAISHA 发明人 UENISHI MASAAKI
分类号 G03B13/00 主分类号 G03B13/00
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