发明名称 Photographic apparatus including improved aperture plate
摘要 Photographic apparatus including an aperture plate adapted to cooperate with a pressure plate of a film handling cassette so as to laterally bow an incremental section of photographic film retained within the cassette into a precise location without contacting the usable portion of the emulsion. Additionally, the aperture plate is longitudinally channeled and includes a ramp extending along a portion of one side of the aperture plate channel so as to urge the film strip to its proper location as the film strip is translated traversely of the aperture plate during insertion of the cassette in the apparatus.
申请公布号 US4071294(A) 申请公布日期 1978.01.31
申请号 US19760712381 申请日期 1976.08.06
申请人 POLAROID CORPORATION 发明人 SCIBILIA, PETER A.
分类号 G03B19/18;G03B17/26;(IPC1-7):G03B1/48 主分类号 G03B19/18
代理机构 代理人
主权项
地址