Supersensitized direct positive photographic silver salt emulsions

The light-sensitivity of a photographic material containing at least one direct positive silver salt emulsion layer the silver salt grains of said emulsion contain electron traps, can be improved by adding a sensitizing dye capable of being super-sensitized, and in addition a supersensitizing styryl...

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Bibliographic Details
Main Authors RIESTER; OSKAR, MOISAR; ERIK
Format Patent
LanguageEnglish
Published 27.05.1975
Subjects
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Summary:The light-sensitivity of a photographic material containing at least one direct positive silver salt emulsion layer the silver salt grains of said emulsion contain electron traps, can be improved by adding a sensitizing dye capable of being super-sensitized, and in addition a supersensitizing styryl dye.
Bibliography:Application Number: US19720316048