Data storage medium having reflective particulate silver layer

摘要: A reflective laser recording and data storage medium, for direct reading after writing, formed from a photosensitive silver-halide emulsion wherein surface latent image exposure on the area forms depthwise gradient of silver nuclei. single step negative diffusion transfer process is used to develop nuclei dissolve unexposed halide elsewhere, forming ion complexes. These complexes are transported by developing sites where precipitated adsorbed form high concentration non-filamentary particles at low melting temperature dielectric colloid matrix which highly light electrically non-conducting.