发明名称 Shutter speed display for viewfinder of a photographic camera
摘要 A viewfinder display in a photographic camera in which the viewfinder includes a viewing opening and a line of light emitting diodes for indicating a range of camera settings, the line having at least first and second portions. A lens is provided between the viewing opening and one of the first or second portions to visually distinguish the first and second portions from one another.
申请公布号 US4289391(A) 申请公布日期 1981.09.15
申请号 US19800116775 申请日期 1980.01.30
申请人 ROLLEI-WERKE FRANKE & HEIDECKE GMBH & CO. 发明人 RODECK, HANS J.
分类号 G03B17/20;(IPC1-7):G03B13/02 主分类号 G03B17/20
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