Silver halide material for optical memory devices with luminescent reading and methods for the treatment thereof
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United States of America Patent
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Jul 24, 2001
Grant Date -
N/A
app pub date -
Feb 24, 1998
filing date -
Feb 24, 1997
priority date (Note) -
Expired
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Abstract
This invention concerns a luminescent optical memory material and method of forming this material, including the encoding of information by a photographic process. The method involves the use of silver halide crystals of a defined size range, with the optional use of sensitizers, emulsion stabilizers, and other agents followed by the absorption of luminescent dyes on the developed silver particle to form a luminescent optical memory system. The method involves synthesis of a photographic emulsion with silver halide crystals of a defined size range, applying photographic emulsion to a substrate, exposing to light photochemical treatment and a process of transformation of the silver particles formed in the places exposed by light into luminescent particles. The method involves obtaining a multi-layer luminescent material for a three-dimensional optical memory devices.
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