Photographic element comprising a fogged, direct-positive hetero

Details Photographic element comprising a fogged, direct-positive hetero Photographic element comprising a fogged, direct-positive hetero

1974-06-03

1976-03-09

Louie, Jr., Won H.

Gas separation: apparatus

Electric field separation apparatus

Including gas flow distribution means

96101, 96120, 96107, 96108, G03C 176, G03C 128

Patent

active

039429865

ABSTRACT:
Photographic direct-positive materials are described which comprise in admixture in a single layer or in superposed layers a monodispersed direct-positive emulsion and a heterodispersed direct-positive emulsion. By the use of both types of emulsions it is possible to obtain reduced contrast and good detail rendering in the high-light areas.

REFERENCES:
patent: 3367778 (1968-02-01), Berriman
patent: 3537858 (1970-11-01), Wise
patent: 3615573 (1971-10-01), Smith et al.

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