Photograhic film assembly comprising light intercepting elements

Details Photograhic film assembly comprising light intercepting elements Photograhic film assembly comprising light intercepting elements

1974-08-14

1976-11-23

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

96 77, 96201, 354304, G03C 148, G03C 140, G03D 902

Patent

active

039934888

ABSTRACT:
A photographic film assembly, which contains a plurality of light-sensitive sheets stacked in a planar parallel relationship between the front wall of a film container having a rectangular opening for exposure and a pressure plate in a planar parallel relationship with the front wall, each of the light-sensitive sheets comprising a transparent support having thereon, in sequence, at least one silver halide light-sensitive emulsion layer and an light-intercepting layer of a hydrophilic colloid containing a light absorbent in an amount necessary for preventing, upon exposure, a next light-sensitive sheet lying behind in the direction of exposure from being fogged, and each of the light-sensitive sheets being retained in the container with the support being directed toward the exposure opening.

REFERENCES:
patent: 3745900 (1973-07-01), Nerwin
patent: 3765887 (1973-10-01), Rogers

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