JPS5763291A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS5763291A
JPS5763291A JP55137764A JP13776480A JPS5763291A JP S5763291 A JPS5763291 A JP S5763291A JP 55137764 A JP55137764 A JP 55137764A JP 13776480 A JP13776480 A JP 13776480A JP S5763291 A JPS5763291 A JP S5763291A
Authority
JP
Japan
Prior art keywords
film
recording
laser beam
conductive film
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55137764A
Other languages
Japanese (ja)
Inventor
Noriyoshi Nanba
Toshiki Aoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Corp
Original Assignee
TDK Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TDK Corp filed Critical TDK Corp
Priority to JP55137764A priority Critical patent/JPS5763291A/en
Publication of JPS5763291A publication Critical patent/JPS5763291A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25708—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing group 13 elements (B, Al, Ga)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/257—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers
    • G11B2007/25705—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials
    • G11B2007/25715—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of layers having properties involved in recording or reproduction, e.g. optical interference layers or sensitising layers or dielectric layers, which are protecting the recording layers consisting essentially of inorganic materials containing oxygen
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium

Abstract

PURPOSE:To prevent noise generation resulting from the attraction of dust floating in the atmosphere by preventing the charging of an optical recording medium with a laser beam by providing a conductive film in addition to a plastic base and an organic recording film for recording. CONSTITUTION:A conductive film 3, such as a film of indium oxide which is transparent to laser beams, is laminated over an organic recording film 2 (e.g. a mixture of nitrocellulose and hyestuff) for nonreversible recording with a laser beam formed over the surface of a plastics base 1 (e.g. cellulose acetate) which is transparent to the laser beam. It is necessary to form the conductive film 3 in an extremely thin layer so that pore formation in the recording film is not interfered. In the case of information reading by the reception of light of reflection, a reflection film (e.g. a thin aluminum film) may be provided between the base 1 and the recording layer 2 as occasion demands.
JP55137764A 1980-10-03 1980-10-03 Optical recording medium Pending JPS5763291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137764A JPS5763291A (en) 1980-10-03 1980-10-03 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137764A JPS5763291A (en) 1980-10-03 1980-10-03 Optical recording medium

Publications (1)

Publication Number Publication Date
JPS5763291A true JPS5763291A (en) 1982-04-16

Family

ID=15206275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137764A Pending JPS5763291A (en) 1980-10-03 1980-10-03 Optical recording medium

Country Status (1)

Country Link
JP (1) JPS5763291A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239946A (en) * 1984-05-14 1985-11-28 Ricoh Co Ltd Optical information recording medium
JPS60260388A (en) * 1984-06-07 1985-12-23 Daicel Chem Ind Ltd Information-recording medium
JPS60260393A (en) * 1984-06-08 1985-12-23 Semiconductor Energy Lab Co Ltd Optical processing of light-transmitting conductive film
JPS60260392A (en) * 1984-06-08 1985-12-23 Semiconductor Energy Lab Co Ltd Optical processing of light-transmitting conductive film
JPS61206982A (en) * 1985-03-11 1986-09-13 Hitachi Ltd Optical disk cartridge
JPS6218828U (en) * 1985-07-15 1987-02-04
EP0365333A2 (en) * 1988-10-21 1990-04-25 Sharp Kabushiki Kaisha Optical recording element
JPH02218031A (en) * 1989-02-20 1990-08-30 Sanyo Electric Co Ltd Optical tape medium

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239946A (en) * 1984-05-14 1985-11-28 Ricoh Co Ltd Optical information recording medium
JPS60260388A (en) * 1984-06-07 1985-12-23 Daicel Chem Ind Ltd Information-recording medium
JPS60260393A (en) * 1984-06-08 1985-12-23 Semiconductor Energy Lab Co Ltd Optical processing of light-transmitting conductive film
JPS60260392A (en) * 1984-06-08 1985-12-23 Semiconductor Energy Lab Co Ltd Optical processing of light-transmitting conductive film
JPH0356556B2 (en) * 1984-06-08 1991-08-28
JPH0356557B2 (en) * 1984-06-08 1991-08-28
JPS61206982A (en) * 1985-03-11 1986-09-13 Hitachi Ltd Optical disk cartridge
JPS6218828U (en) * 1985-07-15 1987-02-04
EP0365333A2 (en) * 1988-10-21 1990-04-25 Sharp Kabushiki Kaisha Optical recording element
US5214636A (en) * 1988-10-21 1993-05-25 Sharp Kabushiki Kaisha Optical recording element having a plurality of thin film filtering layers and optical recording element having an electrically conductive layer
JPH02218031A (en) * 1989-02-20 1990-08-30 Sanyo Electric Co Ltd Optical tape medium

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