发明名称 DEVICE FOR DETECTING FOCUS
摘要 PROBLEM TO BE SOLVED: To make a reduction in cost while improving a focus detection capability. SOLUTION: A pair of light receiving areas in each focus detection area with respect to an automatic selection mode is set on a pair of photoelectric converting means, a pair of light receiving areas in the each focus detection area with respect to a manual selection mode is set while the light receiving areas are wider than the light receiving areas with respect to the automatic selection mode, and the focus adjustment state of an object lens is operated on the basis of an electric signal in the pair of light receiving areas on the pair photoelectric converting means with respect to a focus detection area selected in the manual selection mode or the automatic selection mode.
申请公布号 JP2003107323(A) 申请公布日期 2003.04.09
申请号 JP20010296717 申请日期 2001.09.27
申请人 NIKON CORP 发明人 KANBAYASHI HIDEKI
分类号 G02B7/28;G02B7/34;(IPC1-7):G02B7/28 主分类号 G02B7/28
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