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, and determining an in-focus position on the basis of the acquired focus information, whether the focus lens 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 is stopped on the basis of the acquired focus information, and the focus lens is started from the stop position in a reverse direction.
申请公布号 US7626631(B2) 申请公布日期 2009.12.01
申请号 US20060326814 申请日期 2006.01.06
申请人 CANON KABUSHIKI KAISHA 发明人 KONISHI KAZUKI
分类号 G03B13/00;G03B17/00;H04N5/232 主分类号 G03B13/00
代理机构 代理人
主权项
地址