Method and apparatus for shaping optical storage discs

Details Method and apparatus for shaping optical storage discs Method and apparatus for shaping optical storage discs

G - Physics

11

B

G11B 7/26 (2006.01) G11B 23/38 (2006.01)

Patent

CA 2500882

A method and apparatus for cutting an optical storage disc to a desired shape, and a method and apparatus for sealing the edge of an optical storage disc, particularly a cut OSD. A die set is disclosed which includes a die plate, punch, and pressure plate. During die. cutting, the OSD is compresses between the punch and the pressure plate, bath of which correspond to the desired shape. Compression of the OSD during cutting minimizes damage to the data layer of the shaped OSD. Following cutting, sealant is applied to the edges of the shaped OSD to re-bond the exposed data layer to the OSD and/or to provide a finished edge to the OSD. A system is disclosed for producing shaped OSDs by die-cutting.

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