Method for forming a photosensitive silver halide element
AssigneePolaroid Corporation
InventorVivian K. Walworth
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Abstract
A method for forming a photosensitive element comprising a plurality of single effective silver halide grains in a predetermined spaced array which comprises coalescing a fine-grain silver halide emulsion in a plurality of predetermined spaced depressions in a surface, wherein said coalescence is carried out by contacting said fine-grain emulsion with a silver halide solvent in the vapor phase.
Claims19
A method for forming a photosensitive element comprising a plurality of single effective silver halide grains in a predetermined spaced array which comprises coalescing a fine-grain silver halide emulsion in a plurality of predetermined spaced depressions in a surface by contacting said fine-grain emulsion with a silver halide solvent in the vapor phase.
A method for forming a photosensitive element comprising a plurality of single effective silver halide grains in a predetermined spaced array which comprises the following steps in sequence:
- (a) depositing a fine-grain silver halide emulsion in a plurality of predetermined spaced depressions in a surface;
- (b) contacting said fine-grain emulsion with a silver halide solvent in the vapor phase for a time sufficient to partially dissolve said grains in each depression;
- and
- (c) coalescing said grains to a single effective silver halide grain in substantially each depression.
Dependencies are inferred from the claim text.