发明名称
摘要 There is disclosed a pattern projection device for a camera having a plurality of right, left, upper, and lower focus detection regions in the view field region, which device has an optical unit for splitting a pattern having a predetermined shape into a plurality of patterns in each of the vertical and horizontal directions so as to project the pattern onto the plurality of focus detection regions.
申请公布号 JP3652012(B2) 申请公布日期 2005.05.25
申请号 JP19960160602 申请日期 1996.05.31
申请人 发明人
分类号 G03B13/36;G02B7/28;G02B7/32;G02B7/34;(IPC1-7):G02B7/28 主分类号 G03B13/36
代理机构 代理人
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