G - Physics – 03 – B
Patent
G - Physics
03
B
G03B 15/08 (2006.01) G03B 17/24 (2006.01) G03B 17/32 (2006.01) G03B 33/08 (2006.01) G03C 3/00 (2006.01)
Patent
CA 2054885
ABSTRACT OF THE DISCLOSURE During manufacture a film unit has one portion masked while it is exposed to light in a second portion to form a latent image of indicia on the mask. A pod of liquid developer is attached to the pre-exposed film unit and together they are mounted within a cassette. The cassette is inserted into a camera where the previously unexposed portion of the film unit is exposed to image bearing light while the pre-exposed portion of the film unit is masked from said light. The pod of developer liquid is passed through a pair of rollers to rupture the pod, spread the developer liquid between the layers of the film unit, and develop the two latent images as a single photograph.
Olson Carl L.
Parsons Harry R.
Polaroid Corporation
Smart & Biggar
LandOfFree
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