Two-sided optical recording medium

Details Two-sided optical recording medium Two-sided optical recording medium

G - Physics

01

D

352/32.4

G01D 15/34 (2006.01) B05D 3/06 (2006.01) B32B 15/04 (2006.01)

Patent

CA 1262775

Abstract of the Disclosure The novel optical recording medium, as in the prior art, has a transparent substrate bearing two recording layers, each addressable from only one side of the medium, but unlike prior 2-sided media, the two recording layers are on the same face of the substrate. when the novel medium is addressed from one side of the substrate, a thin-film barrier, such as an opaque metal, between the two recording layers prevents the more distant recording layer from responding to that energy. Preferably a tough, transparent cover layer is sealed to the substrate to protect the two recording layers.

516726

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