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US 4,359,525 AGranted
Method of preparing a photosensitive silver halide element
AssigneePolaroid Corporation
InventorArthur M. Gerber
Life of this patent
Estimating the term…
Abstract
A photosensitive silver halide element comprising a support carrying single effective silver halide grains in a predetermined spaced array is prepared by coalescing fine-grain silver halide in a plurality of spaced depressions in a surface by melting said fine-grain silver halide.
Claims9
A method for forming a photosensitive element comprising a plurality of single effective silver halide grains in a predetermined spaced array which comprises coalescing fine-grain silver halide by heating said fine-grain silver halide at least to its melting point in a plurality of predetermined spaced depressions.
Dependencies are inferred from the claim text.