Sealed optical disk unit, apparatus and method for debris-suppre

Details Sealed optical disk unit, apparatus and method for debris-suppre Sealed optical disk unit, apparatus and method for debris-suppre

1983-06-27

1985-05-21

McElheny, Jr., Donald

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

346 76L, 369 72, 369284, 369292, G11B 724

Patent

active

045190615

ABSTRACT:
Debris suppression is effected in a sealed disk unit, of the kind having a generally enclosed record element/cover sheet inter-space, by controlling the temperature gradient across the inter-space so that thermophoretic forces, exerted by air molecules, drive ablative debris particles toward the cover sheet.

REFERENCES:
patent: 3837656 (1974-09-01), Pradervand
patent: 4074282 (1978-02-01), Balas, Jr. et al.
patent: 4336545 (1982-06-01), Howe et al.
patent: 4360908 (1982-11-01), Howe et al.
patent: 4365258 (1982-12-01), Geyer et al.

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