Patent classifications
G
PHYSICS
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G11
INFORMATION STORAGE
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G11B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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7/00
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power; by sensing optical properties; Record carriers therefor
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G11B7/24
Record carriers characterised by shape, structure or physical properties, or by the selection of the material
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G11B7/241
characterised by the selection of the material
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G11B7/243
comprising inorganic materials only, e.g. ablative layers
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G11B7/2433
Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te
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G11B7/2433

OPTICAL RECORDING MEDIUM
20170011767 · 2017-01-12 ·

An optical recording medium includes a plurality of information signal layers on which information signals are to be optically recorded. Among the plurality of information signal layers, the information signal layer closest to the light-receiving surface has a reflectance of more than 4%.