发明名称 Image pickup apparatus and control method thereof
摘要 <p>The image pickup apparatus electrically converts an object image to produce an image signal and includes a first detector (8, 20, 26) detecting a first in-focus position by a phase difference detection method, a second detector (21) detecting a second in-focus position by a contrast detection method using the image signal, and a corrector (20) correcting, based on a difference between the first and second in-focus positions, the first in-focus position for image pickup. A controller (20) instructs the optical apparatus to move the focus lens by a predetermined movement amount when the second in-focus position is detected, receives, from the optical apparatus, information on an actual movement amount of the focus lens in response to the instruction, and instructs again the optical apparatus to move the focus lens with change of the predetermined movement amount when a difference between the predetermined and actual movement amounts exceeds a predetermined value.</p>
申请公布号 EP2515525(A3) 申请公布日期 2013.05.22
申请号 EP20120164899 申请日期 2012.04.20
申请人 CANON KABUSHIKI KAISHA 发明人 NAKAGAWA, KAZUO
分类号 H04N5/232 主分类号 H04N5/232
代理机构 代理人
主权项
地址