Photographic element including superimposed silver halide layers

Details Photographic element including superimposed silver halide layers Photographic element including superimposed silver halide layers

1975-08-20

1976-04-06

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

With nonelectrical gas treating or conditioning means

96 68, 96100, G03C 176, G03C 140

Patent

active

RE0287601

ABSTRACT:
Photographic elements are provided which feature a support having coated thereon a first photographic silver halide emulsion layer containing image-forming coupler and development inhibitor-releasing coupler; and, a second silver halide emulsion layer containing photographic image-forming coupler, the second layer having a faster effective speed sensitivity than the first layer. Such elements have high contrast for faint images and an extended latitude of low contrast for bright images.

REFERENCES:
patent: 3035913 (1962-05-01), Hellmig
patent: 3050391 (1962-08-01), Thompson et al.
patent: 3148062 (1969-09-01), Whitmore et al.
patent: 3227550 (1966-01-01), Whitmore
patent: 3227551 (1966-01-01), Barr et al.
patent: 3227552 (1966-01-01), Whitmore
patent: 3243294 (1966-03-01), Barr
patent: 3364022 (1968-01-01), Barr
patent: 3450536 (1969-06-01), Wyckoff

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