发明名称 FOCUSING DEVICE AND OPTICAL EQUIPMENT
摘要 PROBLEM TO BE SOLVED: To provide a focusing device capable of suitably performing focusing, and to provide optical equipment. SOLUTION: The focusing device (10) includes a photoelectric conversion part (13) converting subject light passing through an optical system (11) into an electrical signal and outputting it, a processing part (18) obtaining a point spread function by using image data generated based on output from the photoelectric conversion part and obtaining the focusing state of the optical system by using the point spread function, and a control part (19) controlling the focal length of the optical system based on output from the processing part. COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009181024(A) 申请公布日期 2009.08.13
申请号 JP20080021173 申请日期 2008.01.31
申请人 NIKON CORP 发明人 YOSHIZUKA YOKO
分类号 G02B7/36;G03B13/36;H04N5/232 主分类号 G02B7/36
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