发明名称 Focus control apparatus and optical apparatus
摘要 A focus control apparatus includes a signal generator for generating a first signal in accordance with a predetermined frequency component of an image signal obtained by photoelectrically converting an image of a subject formed by an image-taking optical system, a detector for detecting a second signal different from the first signal, and a controller for detecting a movement of the subject based on the second signal and for switching driving of the image-taking optical system based on the detection, wherein the controller controls driving of the image-taking optical system based on the first signal.
申请公布号 US7773146(B2) 申请公布日期 2010.08.10
申请号 US20050153526 申请日期 2005.06.15
申请人 CANON KABUSHIKI KAISHA 发明人 SUDA HIROFUMI
分类号 H04N5/232;G03B17/00 主分类号 H04N5/232
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