Optical storage structure

Claim 1

An information storage device in combination with a radiation recording structure, said recording structure comprising: (a) a disk shaped substrate for providing support; (b) a planarizing layer on said substrate for providing an optically flat surface; (c) a reflective layer deposited on said planarizing layer; (d) a three layer structure comprised of a fluorocarbon phase layer on said reflective layer, an active layer on said phase layer, and a fluorocarbon matrix layer on said active layer, said active layer being encapsulated between said phase layer and matrix layer, said active layer comprising globules of a tellurium, selenium and arsenic alloy; (e) a thin transparent electrically conductive over-layer on said matrix layer, said over-layer being optically transparent to said read and write beams; and said information storage device including focused radiation beams for writing and reading on recording structures and comprising: (a) neturalizing means for maintaining said overlayer at a neutral electrical potential, said recording structure when installed in said information storage device being subject to writing and reading by said focused beams, electrical charges on said over-layer being subject to neutralization by said neturalizing means.