Apparatus and method for data security in an optical disk storag

Details Apparatus and method for data security in an optical disk storag Apparatus and method for data security in an optical disk storag

1992-12-31

1996-02-06

Pitts, Harold

Registers

Ordnance or weapon systems computer

Range finder

235412, 235487, G06K 710, G06K 714

Patent

active

054897688

ABSTRACT:
An optical storage disk for use in an optical storage system includes a storage layer which is capable of being disrupted when a laser beam of sufficient intensity is focused thereon. The optical storage disk has a transparent substrate layer on one side of the storage layer and a lacquer layer on the other side of the storage layer. The disruptions provided by the laser beam are selected to provide human readable and/or machine readable patterns. To reduce the damage to portions of the optical disk other than the storage layer, the storage layer is exposed to the laser beam prior to curing, or prior to applying and curing the lacquer layer. The optical disk can be of the type with data written thereon during fabrication, or the disk can be of the type in which data can be impressed thereon after fabrication of the optical disk. The patterns on the optical disk can be in the form of optical bar codes.

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