Cover assembly for optical recording medium

Details Cover assembly for optical recording medium Cover assembly for optical recording medium

B - Operations, Transporting

65

D

129/39, 352/32.4

B65D 27/04 (2006.01) B65D 59/04 (2006.01) G11B 7/24 (2006.01)

Patent

CA 1219507

Abstract of the Disclosure A cover assembly for use with disk-shaped optical recording medium, having two substantially identical halves, each having an inner surface adapted to provide upon assembly with the medium an air gap adjacent an optical recordable coating on the medium. Each cover half is transparent and has substantially no birefringent characteristics on the region overlying the air gap, thus allowing light to pass unimpeded therethrough. The cover assembly is adapted to be coupled to the central hub of the optical recording medium and to have a raised annulus adjacent thereto to support the assembly and minimize contact with the transparent portion.

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