Appeal No. 2000-1243
Application 08/826,112
25. An optical storage system, comprising:
an optical storage medium, comprising, in order:
a transparent substrate having a pattern of pits in one major
surface thereof;
a partially reflective layer comprising amorphous selenium
and having an index of refraction having a real component, n,
wherein n > 2.6, and an imaginary component, K, less than 0.035
at 650 nm;
a transparent polymer spacer layer; and
a highly reflective layer;
a focused laser beam positioned to enter the medium through the substrate;
means for adjusting focal position of the laser beam, whereby the beam may be focused
on either the partially reflective layer or the highly reflective layer; and
a photodetector positioned to detect the reflected laser beam exiting the medium.
- App. 2 -
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