Optical storage process

Details Optical storage process Optical storage process

1995-06-07

1997-11-25

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430269, 43027012, 430346, 430945, 430962, G11B 700

Patent

active

056910916

ABSTRACT:
A data storage process which includes an erasable high speed, high density, storage medium having a transition metal oxide layer where said oxide layer is capable of undergoing an optically readable chemical change when simultaneously exposed to heat and to light of a selected wavelength. An optically readable image is formed in selected regions of the oxide layer under ambient conditions which include O.sub.2 by simultaneously exposing said layer to heat and to radiation in the blue-green or shorter wavelength spectrum. The image is erased by heating the entire medium using a furnace or by heating selected portions with IR radiation.

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