Photographically sensitive additive color screen element and process of additive color photography

Claim 1

IN A COLOR PHOTOGRAPHIC PROCESS MAKING USE OF AN ADDITIVE COLOR SCREEN FOR TAKING AND VIEWING PURPOSES, THE STEPS OF FORMING A LATENT IMAGE IN A COLOR-SENSITIVE, SILVER HALIDE, PHOTOSENSITIVE LAYER BY EXPOSING SAID LAYER WITH ACTINIC LIGHT DIRECTED THROUGH SAID SCREEN AND ONTO A FACE OF SAID PHOTOSENSITIVE LAYER WHICH CONSTITUTES AN EXPOSURE FACE THEREOF AND WITH WHICH SAID SCREEN IS SUBSTANTIALLY COEXTENSIVE, SAID COLOR SCREEN COMPRISING FILTER MEDIA WHICH ARE SOLUBLE IN AN AQUEOUS ALKALINE REAGENT AND WHICH ARE AT LEAST TWO DIFFERENT COLORS CORRESPONDING TO THE ADDITIVE COLORS DESIRED FOR SAID SCREEN AND SAID FILTER MEDIA BEING CARRIED BY SAID PHOTOSENSITIVE LAYER IN AN ARRANGEMENT PROVIDING A SCREEN PATTERN EXTENDING OVER THE EXPOSURE FACE OF SAID PHOTOSENSITIVE LAYER, DEVELOPING THE LATENT IMAGE IN SAID PHOTOSENSITIVE LAYER TO SILVER BY UNIFORMLY DISTRIBUTING WITHIN SAID PHOTOSENSITIVE LAYER AN AQUEOUS ALKALINE REAGENT IN WHICH SAID FILTER MEDIA ARE SOLUBLE AND COMPRISING A DEVELOPER AND A SILVER HALIDE SOLVENT WHICH FORMS A SOLUBLE SILVER COMPLEX WITH UNEXPOSED SILVER HALIDE AND FORMING A SOLUTION CONTAINING SOLUBLE SILVER COMPLEX AND FILTER MEDIA IN SAID REAGENT, TRANSFERRING FROM SAID PHOTOSENSITIVE LAYER, BY IMBIBITION, SILVER COMPLEX AND FILTER MEDIA IN SOLUTION IN SAID REAGENT TO AT LEAST A STRATUM OF A LIQUID-PERMEABLE TRANSPARENT LAYER CONSTITUTING A RECEIVING LAYER FOR SAID COMPLEX AND SAID FILTER MEDIA AND ARRANGED IN SUPERPOSED RELATION TO SAID PHOTOSENSITIVE LAYER ON THE SIDE THEREOF WHICH INCLUDES SAID EXPOSURE FACE WHEREBY TO PROVIDE IN CONJUCTION WITH SAID PHOTOSENSITIVE LAYER A UNITARY STRUCTURE, HOLDING SAID LAYERS FIXED AGAINST ANY APPRECIABLE RELATIVE MOVEMENTS IN A DIRECTION PARALLEL TO THE PLANES OF SAID LAYERS WHILE TRANSPORTING TO SAID STRATUM SUFFICIENT SILVER COMPLEX TO FORM IN SAID STRATUM A POSITIVE SILVER IMAGE OF THE SAID LATENT IMAGE AND SUFFICIENT FILTER MEDIA TO FORM IN SAID STRATUM A COLOR SCREEN WHICH SUBSTANTIALLY DUPLICATES THE COLOR SCREEN THROUGH WHICH SAID PHOTOSENSITIVE LAYER IS ADAPTED TO BE EXPOSED, AND THEREAFTER SEPARATING SAID PHOTOSENSITIVE LAYER FROM SAID UNITARY STRUCTURE.