Optical disk structures for electron trapping optical memory media
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United States of America Patent
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Mar 16, 1993
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N/A
app pub date -
Apr 22, 1992
filing date -
Dec 12, 1989
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Expired
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Abstract
An optical disk structure for an erasable optical disk for use with an erasable optical disk drive using electron trapping optical memory media is disclosed in which several distinct layers in addition to the electron trapping optical memory media are utilized in order to minimize light scatter between adjacent tracks on the disk and to carry permanent format and guidance information for use in acccomplishing the write, read and focusing and traking functions of the erasable optical disk drive with which the disk structures are utilized. The use of absorbing layers as part of the optical disk structure for attenuating reflections of light within the disk structure and eliminating the spreading of marks is also disclosed.
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