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JPS5548836A - Signal recording board and recording and reproducing method - Google Patents

Signal recording board and recording and reproducing method

Info

Publication number
JPS5548836A
JPS5548836A JP12082878A JP12082878A JPS5548836A JP S5548836 A JPS5548836 A JP S5548836A JP 12082878 A JP12082878 A JP 12082878A JP 12082878 A JP12082878 A JP 12082878A JP S5548836 A JPS5548836 A JP S5548836A
Authority
JP
Japan
Prior art keywords
board
recording
layer
energy beam
transparent
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
JP12082878A
Other languages
Japanese (ja)
Inventor
Taiji Tsunoda
Yoshiki Tanigawa
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP12082878A priority Critical patent/JPS5548836A/en
Publication of JPS5548836A publication Critical patent/JPS5548836A/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
    • G11B7/252—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
    • G11B7/242—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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24306—Metals or metalloids transition metal elements of groups 3-10
    • 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
    • G11B7/243—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 inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24314—Metals or metalloids group 15 elements (e.g. Sb, Bi)
    • 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
    • G11B2007/2571—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 14 elements except carbon (Si, Ge, Sn, Pb)
    • 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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To increase the operationability and recording accuracy and to obtain the signal recording disc low in the cost, by providing the specific energy beam shield layer between the transparent board of plastic and the metal thin film layer recorded with energy beam. CONSTITUTION:On the transparent plastic board 1 the surface of which is smoothed the same accuracy as optical glass, the energy beam shield layer 2 is formed with evaporation method by transparent inorganic material in which the light transmission rate and refractive index of SiO2 is approximately equal to that of the board 1. On the layer 2, the metal(Bi, Cr etc.) thin film layer 3 is formed with evaporation. The bit train 4 depending on the signal of recorded information is formed with the high energy beam such as Ar laser at the layer 3. The reproduction of recording is made with emission of low power energy beam from the side of the board 1 since the layer 2 is transparent. Thus, the accuracy of recording and reproduction is increased and the cost is low since the board is made of plastic. Further, the protective layer 5 is provided with the same material as the board 1 to prevent the flaw and dirt on the recording bit and noise.
JP12082878A 1978-09-30 1978-09-30 Signal recording board and recording and reproducing method Pending JPS5548836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12082878A JPS5548836A (en) 1978-09-30 1978-09-30 Signal recording board and recording and reproducing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12082878A JPS5548836A (en) 1978-09-30 1978-09-30 Signal recording board and recording and reproducing method

Publications (1)

Publication Number Publication Date
JPS5548836A true JPS5548836A (en) 1980-04-08

Family

ID=14795961

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12082878A Pending JPS5548836A (en) 1978-09-30 1978-09-30 Signal recording board and recording and reproducing method

Country Status (1)

Country Link
JP (1) JPS5548836A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727495A (en) * 1980-07-23 1982-02-13 Sharp Corp Magneto-optical storage element
JPS6192448A (en) * 1984-10-11 1986-05-10 Nippon Columbia Co Ltd Optical information recording medium
JPS61190733A (en) * 1985-02-19 1986-08-25 Matsushita Electric Ind Co Ltd Information recording medium
US5082690A (en) * 1989-05-15 1992-01-21 Sharp Corporation Process for manufacturing a magneto-optic disc

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727495A (en) * 1980-07-23 1982-02-13 Sharp Corp Magneto-optical storage element
JPS6192448A (en) * 1984-10-11 1986-05-10 Nippon Columbia Co Ltd Optical information recording medium
JPS61190733A (en) * 1985-02-19 1986-08-25 Matsushita Electric Ind Co Ltd Information recording medium
US5082690A (en) * 1989-05-15 1992-01-21 Sharp Corporation Process for manufacturing a magneto-optic disc

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