Bulk eraser for optical memory media

Details Bulk eraser for optical memory media Bulk eraser for optical memory media

1988-02-05

1990-11-13

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

430 1900, 369275200, G11B 700

Patent

active

049707116

ABSTRACT:
The entire data content of a thermally erasable optical memory medium is erased simultaneously by irradiating the entire signal-retaining layer of the medium with light in such a manner that the signal-retaining layer is preferentially heated over other layers in the medium, particularly other thermo-optically active layers if any are present. The irradiation is most effectively achieved with a flash of light at high intensity and short duration.

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