JPS5690438A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS5690438A
JPS5690438A JP16499879A JP16499879A JPS5690438A JP S5690438 A JPS5690438 A JP S5690438A JP 16499879 A JP16499879 A JP 16499879A JP 16499879 A JP16499879 A JP 16499879A JP S5690438 A JPS5690438 A JP S5690438A
Authority
JP
Japan
Prior art keywords
substrates
recording medium
optical recording
spacer
brought
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
JP16499879A
Other languages
Japanese (ja)
Inventor
Nagaaki Etsuno
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16499879A priority Critical patent/JPS5690438A/en
Publication of JPS5690438A publication Critical patent/JPS5690438A/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

Landscapes

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To prevent oxidation and corrosion of the information constituting layer, by forming a thin film consisting of inorganic materials in the surface part of the recording medium which is brought into contact with the external space. CONSTITUTION:Optical recording medium 1 has substrates 2 and 2' consisting of transparent synthetic resin, and spacer 6 is fixed between substrates 2 and 2'. Inert gas is filled in air 7 surrounded with substrates 2 and 2' and spacer 6, and information constituting layers 5 and 5' consisting of the metallic thin film and so on are formed in the part of substrates 2 and 2' which faces space 7. Meanwhile, thin films 9 and 9' consisting of transparent inorganic materials such as aluminum of approximately 500-5,000Angstrom are formed on light passage faces 2a and 2a' of substrates 2 and 2' which are brought into contact with the external space and permit lights A and B for information read/write to pass through.
JP16499879A 1979-12-19 1979-12-19 Optical recording medium Pending JPS5690438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16499879A JPS5690438A (en) 1979-12-19 1979-12-19 Optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16499879A JPS5690438A (en) 1979-12-19 1979-12-19 Optical recording medium

Publications (1)

Publication Number Publication Date
JPS5690438A true JPS5690438A (en) 1981-07-22

Family

ID=15803894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16499879A Pending JPS5690438A (en) 1979-12-19 1979-12-19 Optical recording medium

Country Status (1)

Country Link
JP (1) JPS5690438A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832238A (en) * 1981-08-18 1983-02-25 Matsushita Electric Ind Co Ltd Disk type recording medium
JPS5837855A (en) * 1981-08-31 1983-03-05 Ayao Wada Recording and reproducing disk for image, voice, magnetism, signal and the like
JPS5845633A (en) * 1981-09-07 1983-03-16 Matsushita Electric Ind Co Ltd Information recording medium
JPS58150147A (en) * 1982-03-03 1983-09-06 Toyobo Co Ltd Optical disc
JPS58153241A (en) * 1982-03-04 1983-09-12 Toyobo Co Ltd Optical disk
JPS58196636A (en) * 1982-05-12 1983-11-16 Matsushita Electric Ind Co Ltd Recording and reproducing disk of digital signal
JPS58199449A (en) * 1982-05-18 1983-11-19 Nec Corp Optical recording medium
JPS5950047U (en) * 1982-09-24 1984-04-03 富士通株式会社 optical disc media
JPS5968850A (en) * 1982-10-12 1984-04-18 Toshiba Corp Information storage medium
JPS6154054A (en) * 1984-08-23 1986-03-18 Matsushita Electric Ind Co Ltd Plate information recording medium
JPS6187253A (en) * 1985-10-07 1986-05-02 Canon Inc Photothermomagnetic recording medium
JPS6294425U (en) * 1985-11-29 1987-06-16
JPS62266748A (en) * 1986-05-02 1987-11-19 ドレクスラ−・テクノロジイ・コ−ポレ−シヨン Optical data memory medium

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832238A (en) * 1981-08-18 1983-02-25 Matsushita Electric Ind Co Ltd Disk type recording medium
JPS5837855A (en) * 1981-08-31 1983-03-05 Ayao Wada Recording and reproducing disk for image, voice, magnetism, signal and the like
JPS5845633A (en) * 1981-09-07 1983-03-16 Matsushita Electric Ind Co Ltd Information recording medium
JPS58150147A (en) * 1982-03-03 1983-09-06 Toyobo Co Ltd Optical disc
JPS58153241A (en) * 1982-03-04 1983-09-12 Toyobo Co Ltd Optical disk
JPS58196636A (en) * 1982-05-12 1983-11-16 Matsushita Electric Ind Co Ltd Recording and reproducing disk of digital signal
JPS58199449A (en) * 1982-05-18 1983-11-19 Nec Corp Optical recording medium
JPH0555938B2 (en) * 1982-05-18 1993-08-18 Nippon Electric Co
JPS5950047U (en) * 1982-09-24 1984-04-03 富士通株式会社 optical disc media
JPS5968850A (en) * 1982-10-12 1984-04-18 Toshiba Corp Information storage medium
JPS6154054A (en) * 1984-08-23 1986-03-18 Matsushita Electric Ind Co Ltd Plate information recording medium
JPH0580735B2 (en) * 1984-08-23 1993-11-10 Matsushita Electric Ind Co Ltd
JPS6187253A (en) * 1985-10-07 1986-05-02 Canon Inc Photothermomagnetic recording medium
JPS6294425U (en) * 1985-11-29 1987-06-16
JPS62266748A (en) * 1986-05-02 1987-11-19 ドレクスラ−・テクノロジイ・コ−ポレ−シヨン Optical data memory medium

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