Optical recording systems
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 25, 2000
Issued Date -
N/A
app pub date -
Dec 31, 1998
filing date -
Oct 8, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical storage system suitable for optical storage and retrieval of information using a storage medium comprising a substrate, an active layer for retention of the data, and an overlying optical layer, or layers for double-sided. The optical layer serves to produce an evanescent field in or adjacent to the active layer in response to an incident beam of radiation. The evanescent field is frustrated or attenuated by the data in the active layer and produces a signal.
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