发明名称 CAMERA WITH FOCAL DEPTH INDICATOR
摘要 A device for indicating the depth of field of a camera having aperture setting means and range setting means. The device comprises a plurality of optically active elements positioned for view in the camera viewfinder and scale means associated with the optically active elements. Means are also provided which are responsive to the camera aperture setting and the range setting to select adjacent ones of the optically active elements to indicate the depth of field.
申请公布号 JPS56151923(A) 申请公布日期 1981.11.25
申请号 JP19810044759 申请日期 1981.03.28
申请人 ROLLEI WERKE FRANKE HEIDECKE 发明人 ROORANDO KURIYUUGAA;YOAHIMU PUROSUKE;ORUTOBIN RESUNAA;BARUTAA SUBAROFUSUKII
分类号 G02B7/28;G03B13/30;G03B17/18;G03B17/20 主分类号 G02B7/28
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