发明名称 Focus control method and focus control apparatus
摘要 In a focus control method of acquiring focus information a plurality of times while moving a focus lens (3), and determining an in-focus position on the basis of the acquired focus information, whether the focus lens (3) is to be moved toward the infinite end or the closest end is determined on the basis of a focus lens position, the focus information is acquired while moving the focus lens in the decided direction, the focus lens (3) is stopped by the control unit (15) on the basis of the acquired focus information, and the focus lens (3) is started by the control unit (15) from the stop position in a reverse direction.
申请公布号 EP1679546(A1) 申请公布日期 2006.07.12
申请号 EP20060100107 申请日期 2006.01.05
申请人 CANON KABUSHIKI KAISHA 发明人 KONISHI, KAZUKI
分类号 G02B7/10;G02B7/28;G02B7/36;G03B13/36;H04N5/232;H04N101/00 主分类号 G02B7/10
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