Transmissively read optical recording medium
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United States of America Patent
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Mar 12, 1991
Issued Date -
N/A
app pub date -
Jul 27, 1989
filing date -
Apr 23, 1986
priority date (Note) -
Expired
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Abstract
A transmissively read light beam sensitive recording medium is disclosed having a thin layer of irregularly shaped spheroidal silver grains which are capable of being modified by a light beam into smoothly rounded spherical silver grains. Portions of the thin layer which contain the irregularly shaped grains are highly absorptive of light, while portions of the layer which have been modified are transmissive. Also disclosed are methods for creating said medium.
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