Eastman-Kodak Company

Robert A Silverman

Harry A Hoyen, Jr

Charles J Wright

Harry A Hoyen

Blended emulsions for use in forming a direct-positive image are disclosed. The emulsions are comprised of a first, radiation-sensitive core-shell grain population having a relatively low coefficient of variation and a second, substantially smaller size grain population capable of internally trapping photolytically generated electrons. Photographic elements incorporating the blended emulsions exhibit improved covering power and can exhibit enhanced speed.

Blended grain direct-positive emulsions and photographic elements and

Photographic elements particularly adapted for forming direct-positive images are disclosed in which a radiation-sensitive core-shell emulsion layer and a silver halide emulsion layer incapable of forming a surface latent image within the direct-positive exposure latitude of the first emulsion layer and containing a grain population capable of internally trapping photolytically generated electrons are both present. The photographic elements are capable of exhibiting increased covering power, greater maximum density, and increased speed.

Photographic elements containing direct-positive emulsions and processes

Photographic elements are disclosed containing a hydrophilic colloid layer hardened with a compound having the structural formula:

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Rochester, NY, United States of America

Robert A Silverman