JPS5690439A - Material for reproducing optical signal records - Google Patents

Material for reproducing optical signal records

Info

Publication number
JPS5690439A
JPS5690439A JP16652679A JP16652679A JPS5690439A JP S5690439 A JPS5690439 A JP S5690439A JP 16652679 A JP16652679 A JP 16652679A JP 16652679 A JP16652679 A JP 16652679A JP S5690439 A JPS5690439 A JP S5690439A
Authority
JP
Japan
Prior art keywords
transparent
thin film
inorganic thin
coating layer
layer
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
JP16652679A
Other languages
Japanese (ja)
Inventor
Toshiyuki Iwahashi
Masahiro Yamazaki
Takanobu Fujita
Tadaoki Yamashita
Nobuo Akahira
Masami Uchida
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.)
Sumitomo Chemical Co Ltd
Panasonic Holdings Corp
Original Assignee
Sumitomo Chemical Co Ltd
Matsushita Electric Industrial Co Ltd
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 Sumitomo Chemical Co Ltd, Matsushita Electric Industrial Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP16652679A priority Critical patent/JPS5690439A/en
Publication of JPS5690439A publication Critical patent/JPS5690439A/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

Landscapes

  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To reproduce the signal with a high precision, by providing a smooth and transparent coating layer having no dust and foreign matter between the transparent base material and the inorganic thin film photosensitive layer, in the optical disc. CONSTITUTION:The multilayer structure is given where smooth and transparent coating layer 2 having no dust and foreign matter is provided on at least one face of transparent base material 1 consisting of synthetic resin and inorganic thin film photosensitive layer 3 is provided on this coating layer 2, and transparent protection layer 4 is provided according to the purpose of the use. In case of reproducing due to the reflection light, it is effective that metallic film 5 is provided on inorganic thin film photosensitive layer 3.
JP16652679A 1979-12-20 1979-12-20 Material for reproducing optical signal records Pending JPS5690439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16652679A JPS5690439A (en) 1979-12-20 1979-12-20 Material for reproducing optical signal records

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16652679A JPS5690439A (en) 1979-12-20 1979-12-20 Material for reproducing optical signal records

Publications (1)

Publication Number Publication Date
JPS5690439A true JPS5690439A (en) 1981-07-22

Family

ID=15832939

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16652679A Pending JPS5690439A (en) 1979-12-20 1979-12-20 Material for reproducing optical signal records

Country Status (1)

Country Link
JP (1) JPS5690439A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862841A (en) * 1981-10-09 1983-04-14 Seiko Epson Corp Disc material
JPS59227488A (en) * 1983-06-09 1984-12-20 Dainippon Ink & Chem Inc Optical recording medium
JPS6078786A (en) * 1983-10-05 1985-05-04 Dainippon Printing Co Ltd Optical recording material
JPS61123035A (en) * 1984-11-20 1986-06-10 Matsushita Electric Ind Co Ltd Negative disc for optical disc and its production
JPS61214242A (en) * 1985-03-20 1986-09-24 Hitachi Maxell Ltd Optical disc
KR100496727B1 (en) * 2002-02-20 2005-06-22 제이엠아이 주식회사 Optical disc having function for protection from electrostatic charge

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5862841A (en) * 1981-10-09 1983-04-14 Seiko Epson Corp Disc material
JPS59227488A (en) * 1983-06-09 1984-12-20 Dainippon Ink & Chem Inc Optical recording medium
JPH0376239B2 (en) * 1983-06-09 1991-12-04 Dainippon Inki Kagaku Kogyo Kk
JPS6078786A (en) * 1983-10-05 1985-05-04 Dainippon Printing Co Ltd Optical recording material
JPH0452236B2 (en) * 1983-10-05 1992-08-21 Dainippon Printing Co Ltd
JPS61123035A (en) * 1984-11-20 1986-06-10 Matsushita Electric Ind Co Ltd Negative disc for optical disc and its production
JPH0630170B2 (en) * 1984-11-20 1994-04-20 松下電器産業株式会社 Optical disc master and method of manufacturing the same
JPS61214242A (en) * 1985-03-20 1986-09-24 Hitachi Maxell Ltd Optical disc
KR100496727B1 (en) * 2002-02-20 2005-06-22 제이엠아이 주식회사 Optical disc having function for protection from electrostatic charge

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