Optical disk assembly

Details Optical disk assembly Optical disk assembly

1986-10-20

1988-02-16

Stephan, Steven L.

Dynamic information storage or retrieval

Storage medium structure

Layered

G11B 726

Patent

active

047260084

ABSTRACT:
Disclosed herein is an optical disk assembly of the type comprising a transparent plastic cover sheet which overlies, and protects from contamination, an optical recording media disposed on a substrate. Plastic spacer means are provided for spacing the cover sheet from the recording media. To avoid the disadvantages attendant the use of adhesives, the cover sheet is fused to the spacer means such as by a laser welding technique.

REFERENCES:
patent: 4519061 (1985-05-01), Dahrecke et al.
patent: 4536868 (1985-08-01), Lange et al.
patent: 4539673 (1985-09-01), Winslow
patent: 4564932 (1986-01-01), Lange
patent: 4644520 (1987-02-01), Lange

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