Information storage device
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United States of America Patent
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Jul 23, 1991
Grant Date -
N/A
app pub date -
Aug 12, 1988
filing date -
Dec 15, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An information storage device, has a container and at least two identical tical information carriers arranged coaxially inside the container and adapted for independent rotation in relation to each other. Each optical information carrier has a hollow cylindrical base made of a material transparent for laser radiation and a recording layer applied on this cylindrical base.
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