JPS5455445A - Information recording element - Google Patents

Information recording element

Info

Publication number
JPS5455445A
JPS5455445A JP12217177A JP12217177A JPS5455445A JP S5455445 A JPS5455445 A JP S5455445A JP 12217177 A JP12217177 A JP 12217177A JP 12217177 A JP12217177 A JP 12217177A JP S5455445 A JPS5455445 A JP S5455445A
Authority
JP
Japan
Prior art keywords
layer
recording
substrate
clearance
sections
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
JP12217177A
Other languages
Japanese (ja)
Inventor
Shigetaro Ogura
Yoko Oikawa
Yoshiyuki Osada
Ikuaki Yamagata
Seishiro Yoshioka
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP12217177A priority Critical patent/JPS5455445A/en
Publication of JPS5455445A publication Critical patent/JPS5455445A/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
    • 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
    • G11B7/2433—Metals or elements of groups 13, 14, 15 or 16 of the Periodic System, e.g. B, Si, Ge, As, Sb, Bi, Se or Te

Abstract

PURPOSE:To provide an information recording element, which is excellent in durability, storage and freedom from air pollusion and from reduction in sensitivity and which is suitable for practical use, by forming a clearance either between the recording layer of heat mode and a protecting layer or between the recording layer and a substrate. CONSTITUTION:A substrate 1 is formed with a uniformly thick recording layer 2 of metal or the like which can thermally record information. The layer 2 is divided into multiple checkered sections. In order to form an effective recording region in each section, a protecting layer support frame 3 having a uniform thickness is formed between he respective sections of the effective recording regions while leaving the layer 2. A transparent protecting layer 5 having the same size as that of the substrate 1 is formed additionally, thus producing a microfish which is formed with a clearance between the layers 2 and 5 for each section.
JP12217177A 1977-10-12 1977-10-12 Information recording element Pending JPS5455445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12217177A JPS5455445A (en) 1977-10-12 1977-10-12 Information recording element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12217177A JPS5455445A (en) 1977-10-12 1977-10-12 Information recording element

Publications (1)

Publication Number Publication Date
JPS5455445A true JPS5455445A (en) 1979-05-02

Family

ID=14829324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12217177A Pending JPS5455445A (en) 1977-10-12 1977-10-12 Information recording element

Country Status (1)

Country Link
JP (1) JPS5455445A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862777A (en) * 1981-10-09 1983-04-14 Canon Electronics Inc Card processing device
JPS58171735A (en) * 1982-03-23 1983-10-08 Thomson Csf Protected optical disc and reproducer and/or recorder containing flexible sealing member
JPS58155639U (en) * 1982-04-13 1983-10-18
JPS595097A (en) * 1982-07-02 1984-01-11 Nec Corp Optical recording system
JPS60125945A (en) * 1983-12-13 1985-07-05 Daicel Chem Ind Ltd High density information recording carrier and its production
EP0171104A1 (en) * 1984-07-11 1986-02-12 Philips Electronics N.V. Optical recording element
WO2008024223A1 (en) * 2006-08-21 2008-02-28 Imation Corp. Raw material conserving optical data storage media

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862777A (en) * 1981-10-09 1983-04-14 Canon Electronics Inc Card processing device
JPS58171735A (en) * 1982-03-23 1983-10-08 Thomson Csf Protected optical disc and reproducer and/or recorder containing flexible sealing member
JPS58155639U (en) * 1982-04-13 1983-10-18
JPS595097A (en) * 1982-07-02 1984-01-11 Nec Corp Optical recording system
JPH0420793B2 (en) * 1982-07-02 1992-04-06 Nippon Electric Co
JPS60125945A (en) * 1983-12-13 1985-07-05 Daicel Chem Ind Ltd High density information recording carrier and its production
EP0171104A1 (en) * 1984-07-11 1986-02-12 Philips Electronics N.V. Optical recording element
WO2008024223A1 (en) * 2006-08-21 2008-02-28 Imation Corp. Raw material conserving optical data storage media
US7785689B2 (en) 2006-08-21 2010-08-31 Imation Corp. Raw material conserving optical data storage media

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