Optical data storage and recording medium having a replaceable p

Details Optical data storage and recording medium having a replaceable p Optical data storage and recording medium having a replaceable p

1980-07-21

1982-03-09

Hartary, Joseph W.

Recorders

Record receivers and/or driving means therefor

Laminated, impregnated, or coated bases

369284, 428 64, 430945, 430961, G01D 1534

Patent

active

043192521

ABSTRACT:
A protective removable coverplate for a reflective optical data storage and recording medium wherein a transparent coverplate is removably disposed over a transparent coating which is in intimate contact with the reflective medium. A slightly bumpy upper surface of the coating supports the coverplate with air gaps existing between the coating and the coverplate to a maximum depth of one micron under hand pressure on the coverplate.

REFERENCES:
patent: 3079837 (1963-03-01), Theilemann
patent: 3443946 (1969-05-01), Grabhofer
patent: 3990084 (1976-11-01), Hamisch
patent: 4074282 (1978-02-01), Balas
patent: 4090031 (1978-05-01), Russell
patent: 4101907 (1978-07-01), Bell
patent: 4109045 (1978-08-01), Goshima
patent: 4126726 (1978-11-01), Soeding
patent: 4188433 (1980-02-01), Dijkstra
patent: 4195312 (1980-03-01), Bell
patent: 4195313 (1980-03-01), Bell

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