Double-sided hybrid optical disk with surface topology
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United States of America Patent
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Jun 21, 2005
Issued Date -
N/A
app pub date -
Mar 25, 2002
filing date -
Jan 16, 2001
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Expired
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Abstract
An optical disk has a multi-layer tuned optical coating overlying both small bumps to store pre-recorded information and lands onto which information is written to and read. The optical coating includes a phase-change metal/alloy layer formed over the disk substrate and a dielectric layer formed over the phase-change layer. An optical disk according to the invention has specific topological features and sizes.
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