发明名称 AUTOFOCUS DEVICE
摘要 PROBLEM TO BE SOLVED: To appropriately set a focus area even when switching a focus detection system in a device where a plurality of focus areas are grouped in hybrid AF. SOLUTION: When the group Gr1 is selected, focus detection of the focus areas Ar8 to Ar11 in the group is performed by a phase difference detection system, and a focusing lens is driven based on the result of the focus detection. Before the focusing lens reaches a focusing position, the device is switched to contrast AF. In the contrast AF, a zone Zn1 involving the areas Ar8 to Ar11 becomes the focus area. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2006350188(A) 申请公布日期 2006.12.28
申请号 JP20050179064 申请日期 2005.06.20
申请人 NIKON CORP 发明人 SATANI DAISUKE
分类号 G02B7/28;G02B7/34;G02B7/36;G03B13/36;H04N5/232;H04N101/00 主分类号 G02B7/28
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