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Manufacture of Two-Sided Optical Storage Disks Disclosure Number: IPCOM000043004D
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04

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Hamburgen, A [+details]


This article describes a method of manufacture of two-sided 1 optical storage disks allowing an easy alignment of the two halves with respect to each other. Optical storage disks usually include a pair of disk-shaped members 1 and 2 arranged in a cooperating, coaxial relationship. The inwardly facing side of each member is overlayed by a recording material (not shown). In order to facilitate their alignment, slanted mating surfaces 3 and 4 are formed on the outer ring of the two disk-shaped members 1 and 2, as shown in the figure, or on the inner ring or on both rings. The mating surfaces 3 and 4 may have built into them mating irregularities that facilitate radial and tangential alignment.