发明名称 Image pickup apparatus and defocus amount correction value calculation method
摘要 An image pickup apparatus, in which a light is projected toward a physical object by projection means, and based on the reflected light by the physical object of the light, a defocus amount is detected (steps S 2003 to S 2008 ) by the first focus detection means and the second focus detection means, respectively, and a correction value for matching the defocus amount detected by the first focus detection means with the defocus amount detected by the second focus detection means is calculated and kept stored (step S 2009 ), and at the photographing time, based on the defocus amount detected by the first focus detection means and the correction value kept stored, a focus adjustment lens within a photographic lens is driven, thereby preventing an inappropriate correction of the defocus amount.
申请公布号 US7412159(B2) 申请公布日期 2008.08.12
申请号 US20050185644 申请日期 2005.07.20
申请人 CANON KABUSHIKI KAISHA 发明人 ICHIMIYA TAKASHI
分类号 G03B3/00 主分类号 G03B3/00
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