Cubic regular grain photographic reversal emulsions

Details Cubic regular grain photographic reversal emulsions Cubic regular grain photographic reversal emulsions

1977-03-30

1978-03-14

Brown, J. Travis

Gas separation: apparatus

Chromatography type apparatus

96 94R, 96107, G03C 136, G03C 128

Patent

active

RE0295752

ABSTRACT:
Direct-positive photographic emulsions comprising silver halide grains which have a substantially regular crystal shape in contrast to substantially irregular crystal shape, are disclosed. Such emulsions can contain electron acceptors and the grains can be fogged with both reduction and gold fogging agents. Photographic elements employing such emulsions and processes for preparing them are also disclosed.

REFERENCES:
Klein et al., "Ia Properties of Photographic Emulsion Grains," Journal of Photographic Science, vol. 12, pp. 242-244, (1964).
Moisar et al., "Investigation of the Topography of Latent Interior and Exterior Images," Bunsengesellschaft for Physickalische Chemie. Berichte 67, No. 4, pp. 356-359, (1963).

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