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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorKazufumi Ogawa
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An optical recording film includes a chemisorptive thin film with orienting properties fixed directly or through a primer layer to a substrate surface, and a coating formed on a surface of the chemisorptive thin film. The coating has an initial molecule orientation attained by aligning a group of polymerizable molecules in a predetermined direction on the surface of the chemisorptive thin film, and polymerizing the polymerizable molecules to one another. Regions with changed initial molecule orientation and regions with unchanged initial molecule orientation of the coating are formed when selectively irradiating the coating with light that changes the initial molecule orientation, thus making optical information recording possible. It is also possible to introduce photodegrading functional groups into the coating. By introducing functional groups whose orientation is changed by light or functional group that are degraded by light, an optical recording film allowing optical recording and an optical recording medium using the same are provided.
A write-once optical recording film, comprising:
A method for manufacturing a write-once optical recording film, comprising:
An optical recording medium comprising an optical recording layer on at least one surface of a medium substrate, the optical recording layer comprising:
A method for manufacturing an optical recording medium provided with a recording layer in which optical information can be recorded by changing an initial molecule orientation of a coating constituting the recording layer by selectively irradiating focused light, the method comprising:
A method for optical recording on an optical recording medium provided with an optical recording layer on at least one surface of a substrate;
An information recording/reproducing apparatus for recording and reproducing information on a write-once optical recording medium,
A computer system, comprising:
A video signal recording/reproducing system, comprising:
A write-once optical recording film,
A method for manufacturing a write-once optical recording film, which comprises a thin film made of chemisorptive molecules fixed by covalent bonds directly or through a primer layer to a substrate surface, wherein optical information can be recorded on the thin film by irradiating light to degrade the molecules at the irradiated portions;
An optical recording medium including a write-once optical recording film which comprises a substrate and a thin film made of chemisorptive molecules fixed by covalent bonds directly or through a primer layer to one or both sides of the substrate, in which optical information can be recorded;
A method for manufacturing a write-once optical recording medium, which comprises a substrate and a thin film made of chemisorptive molecules fixed by covalent bonds directly or through a primer layer to one or both sides of the substrate, wherein optical information can be recorded in the thin film by irradiating light to degrade the molecules at the irradiated portions;
A method for recording/reproducing information on a write-once optical recording medium, which comprises a substrate and a thin film made of chemisorptive molecules fixed by covalent bonds directly or through a primer layer to one or both sides of the substrate, wherein optical information can be recorded in the thin film by irradiating light to degrade the molecules at the irradiated portions, comprising:
An apparatus for recording/reproducing information on a write-once optical recording medium, which comprises a substrate and a thin film made of chemisorptive molecules fixed by covalent bonds directly or through a primer layer to one or both sides of the substrate, wherein optical information can be recorded in the thin film by irradiating light to degrade the molecules at the irradiated portions, the apparatus comprising:
Dependencies are inferred from the claim text.