Method for affixing information of read-only optical disks

Details Method for affixing information of read-only optical disks Method for affixing information of read-only optical disks

G - Physics

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G11B 7/00 (2006.01) G11B 7/0045 (2006.01) G11B 7/243 (2006.01) G11B 7/253 (2006.01) G11B 7/254 (2006.01) G11B 7/258 (2006.01) G11B 23/40 (2006.01)

Patent

CA 1320571

TITLE METHOD FOR AFFIXING INFORMATION ON READ-ONLY OPTICAL DISCS Abstract of the Disclosure A read-only optical recording disc comprising a substrate, a metal reflective layer and an overlying protective layer, at least one of the substrate and the protective layer being light-transmissive, is marked by means of a pulsed scanning laser beam which transmits light in a patterned array through a transparent layer of the medium and indelibly marks the reflective layer of the medium without disrupting the surface continuity of the substrate and protective layer.

591452

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