Flash exposure of supersensitized silver halide photographic lig

Details Flash exposure of supersensitized silver halide photographic lig Flash exposure of supersensitized silver halide photographic lig

1975-03-24

1976-05-11

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

With means to add charged solid or liquid particles to...

96108, 96124, G03C 504

Patent

active

039559793

ABSTRACT:
A silver halide photographic light-sensitive element suitable for exposure to light for a period of time of less than (preferably) 0.0001 second comprising a support bearing thereon at least one layer of a silver halide photographic emulsion, the silver halide photographic emulsion containing at least one sensitizing dye represented by the following General Formula (I) in combination with at least one sensitizing dye represented by the following General Formula (II): ##SPC1##
wherein R.sub.1 and R.sub.2 each represents an alkyl group, at least one of R.sub.1 and R.sub.2 being an alkyl group having a sulfo substituent; ##SPC2##
Wherein R.sub.B represents a methyl group or an ethyl group, R.sub.3 and R.sub.4 have the same meaning as R.sub.1 and R.sub.2, at least one of R.sub.3 and R.sub.4 being an alkyl group having a sulfo substituent.

REFERENCES:
patent: 3594172 (1971-07-01), Sincius
patent: 3617293 (1971-11-01), Shiba et al.
patent: 3660099 (1972-05-01), Sato et al.
patent: 3667960 (1972-06-01), Shiba et al.
patent: 3808008 (1974-04-01), Shiba et al.
patent: 3890154 (1975-06-01), Ohkubo et al.

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