发明名称 Distance measuring device for camera
摘要 The disclosed distance measuring device for a camera capable of measuring the distances of a plurality of objects within a target area comprises center-weighting means for treating the distance information of the object whose image lies near or at the center of the area of the picture frame with a heavier emphasis than those of the other objects, whereby an optimum focusing adjustment is allowed to be formed automatically.
申请公布号 US4748469(A) 申请公布日期 1988.05.31
申请号 US19870102828 申请日期 1987.09.23
申请人 CANON KABUSHIKI KAISHA 发明人 TAMURA, SHUICHI
分类号 G01S7/491;G01S17/46;G02B7/32;(IPC1-7):G03B3/00;G01C3/08 主分类号 G01S7/491
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