Disc-shaped member

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1989-03-08

1990-01-09

Stephan, Steven L.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

346 76L, 346137, 358342, 369100, 369109, 428 64, G11B 700

Patent

active

048932973

ABSTRACT:
A transparent record disc is provided which may appropriately have video signals optically recorded thereon, the record is composed of a lamination, for example, of pliant transparent plastic on a base of hard transparent plastic. The base provides strength for the record and the pliant plastic permits the video recording to be impressed into the record by simple embossing means, rather than by stamping or molding by which the surface of the record is actually raised above its melting point and caused to flow. An improved process for forming the video recordings on the disc record is also provided.

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