发明名称 Image-taking apparatus
摘要 An image-taking apparatus is disclosed which achieves focusing in a reduced time with higher accuracy of an in-focus position search in a TV-AF method to minimize occurrence of unnatural focus changes. The image-taking apparatus includes an image-taking element, a first detector which outputs a focus evaluation value signal based on a predetermined frequency component of an output signal of the image-pickup element, a second detector which outputs a detection signal different from the focus evaluation value signal, and a controller which performs first processing of obtaining information for an in-focus position search of the focus lens based on the focus evaluation value signal. The controller performs second processing of obtaining information on an in-focus position based on the detection signal from the second detector, and performs third processing different depending on a comparison result between the information from the first processing and the information obtained from the second processing.
申请公布号 US7403230(B2) 申请公布日期 2008.07.22
申请号 US20040960094 申请日期 2004.10.08
申请人 CANON KABUSHIKI KAISHA 发明人 YASUDA HITOSHI
分类号 G03B13/36;H04N5/232;G02B7/28;G02B7/30;G02B7/34;G02B7/36;G03B13/00;H04N101/00 主分类号 G03B13/36
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