Appeal 2006-2650
Application 10/011,886
Appellants’ invention relates to an optical information medium for
erasable recording by a laser-light beam. An embodiment of the invention is
illustrated in Figure 1 below:
Figure 1 shows an optical information medium 20 for erasable
recording by means of a laser-light beam 10 having a laser-light wavelength,
the medium having a substrate 1 having a reflective layer 3 and a stack 2 of
layers provided thereon, the stack comprising a first dielectric layer 5 and a
second dielectric layer 7, and a recording layer 6 that is able to change
between an amorphous and a crystalline state, arranged between the first
dielectric layer 5 and the second dielectric layer 7, wherein the first
dielectric layer 5 is formed on a first side of the recording layer near the
substrate, and the second dielectric layer is formed on a second side of
recording layer. (Br. 2-3) (citing Specification p. 7, ll. 19-27).
2
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