Write-once-read-many optical recording media and process for recording and reproducing information on the media
First Claim
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1. A write-once-read-many optical recording medium comprising:
- a first inorganic thin film; and
at least one of a second inorganic thin film and an organic thin film, wherein the first inorganic thin film comprises at least “
R” and
“
O,”
wherein “
R”
represents at least one element selected from the group consisting of Y, Bi, In, Mo, V and lanthanum series elements; and
“
O”
represents oxygen atom, and the second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film.
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Abstract
For recording information at high density even at blue-laser wavelengths, a write-once-read-many optical recording medium includes a first inorganic thin film and at least one of a second inorganic thin film and an organic thin film, in which the first inorganic thin film contains at least “R” and “O,” wherein “R” is at least one selected from Y, Bi, In, Mo, V and lanthanum series elements; and “O” is oxygen atom, and the second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film.
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Citations
43 Claims
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1. A write-once-read-many optical recording medium comprising:
-
a first inorganic thin film; and
at least one of a second inorganic thin film and an organic thin film, wherein the first inorganic thin film comprises at least “
R” and
“
O,”
wherein “
R”
represents at least one element selected from the group consisting of Y, Bi, In, Mo, V and lanthanum series elements; and
“
O”
represents oxygen atom, andthe second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A process for recording and reproducing information on a write-once-read-many optical recording medium,
the write-once-read-many optical recording medium comprising: -
a first inorganic thin film; and
at least one of a second inorganic thin film and an organic thin film, wherein the first inorganic thin film comprises at least “
R” and
“
O,”
wherein “
R”
represents at least one selected from the group consisting of Y, Bi, In, Mo, V and lanthanum series elements; and
“
O”
represents oxygen atom, andthe second inorganic thin film and the organic thin film are capable of suppressing at least one of deformation and breakage of the first inorganic thin film and receiving the change of state of the first inorganic thin film, the process comprising forming a recorded area by the photoabsorption function of at least one of the first inorganic thin film and the organic thin film at wavelengths at which at least one of recording and reproduction is performed. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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Specification