Silver halide photographic emulsion containing tabular grains wi

Details Silver halide photographic emulsion containing tabular grains wi Silver halide photographic emulsion containing tabular grains wi

1996-02-13

1998-04-07

Huff, Mark F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Silver compound sensitizer containing

430567, G03C 1035, G03C 1015, G03C 107

Patent

active

057363110

ABSTRACT:
A silver halide photographic emulsion is disclosed, which comprises core/shell type tabular silver halide grains having a diameter/thickness ratio of at least 2 and (111) faces as parallel main planes; wherein at least 30%, on a projected area basis, of the total silver halide grains are tabular grains which contain in their individual shells at least 15 dislocation lines reaching to the grain edges from the interface of the core and the shell and have the ratio of the shell part containing dislocation lines to the core, on a projected area basis, in the range shown as the shaded part in FIG. 1, thereby ensuring high sensitivity and high sharpness.

REFERENCES:
patent: 4806461 (1989-02-01), Ikeda et al.
patent: 4983508 (1991-01-01), Ishiguro et al.
patent: 5498516 (1996-03-01), Kikuchi et al.
patent: 5550014 (1996-08-01), Maruyama et al.

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