Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Two or more radiation-sensitive layers containing other than...
Patent
1981-02-03
1982-11-30
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Two or more radiation-sensitive layers containing other than...
430349, 430494, 430550, 430570, 430591, 430955, 354 28, G03C 176
Patent
active
043616453
ABSTRACT:
A photographic element comprising a plurality of layers (e.g., three) of light sensitive emulsions arranged one on top of the other and based on a support, each of the emulsions comprising a coupler, a silver halide compound and a sensitization promoter which is transformed into a sensitizer by thermal, photo- or electro-sensitization. Novel processes of color photography and spectral sensitization of color photography emulsions are also disclosed. Furthermore, cameras having means to activate the sensitization promoters in the emulsions are provided.
REFERENCES:
patent: 3105761 (1963-10-01), Foris
patent: 3482981 (1969-12-01), Van Lare
patent: 3796579 (1974-03-01), Brooker et al.
patent: 3923524 (1975-12-01), Haase
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