发明名称 Film cassette having focal plane shutter
摘要 A shutterless camera and a film assemblage specifically adapted for use therewith. The film assemblage includes a cassette having an exposure opening and an ingress opening in one wall thereof and an egress opening in another wall. Mounted within the cassette is a focal plane shutter having an exposure aperture therein which is adapted to be driven across a photosensitive area of a film unit to expose the same. The camera includes a motor which is adapted to drive the shutter, i.e., actuate the shutter, thereby exposing a film unit, and film advancing apparatus which is adapted to extend into the ingress opening in the cassette to engage and move the exposed film unit out of the cassette.
申请公布号 US4172650(A) 申请公布日期 1979.10.30
申请号 US19770850552 申请日期 1977.11.11
申请人 POLAROID CORP 发明人 DUNCAN, ROBERT C
分类号 G03B9/28;G03B17/32;(IPC1-7):G03B9/28;G03B1/00;G03B17/42;G03C3/00 主分类号 G03B9/28
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