JPS57164452A - Manufacture of optical recording medium - Google Patents

Manufacture of optical recording medium

Info

Publication number
JPS57164452A
JPS57164452A JP56047440A JP4744081A JPS57164452A JP S57164452 A JPS57164452 A JP S57164452A JP 56047440 A JP56047440 A JP 56047440A JP 4744081 A JP4744081 A JP 4744081A JP S57164452 A JPS57164452 A JP S57164452A
Authority
JP
Japan
Prior art keywords
recording medium
optical recording
layers
recording material
substrate
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
JP56047440A
Other languages
Japanese (ja)
Inventor
Nagaaki Etsuno
Seiya Ogawa
Hironori Goto
Yasuyuki Goto
Mitsuru Hamada
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 JP56047440A priority Critical patent/JPS57164452A/en
Publication of JPS57164452A publication Critical patent/JPS57164452A/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

Landscapes

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

Abstract

PURPOSE:To obtain a long-life optical recording medium by forming a recording material layer on one surface of a transparent substrate, sticking two substrates opposite to the recording material layer by a specific solventless adhesive with a spacer between, and preventing the production and entry of harmful gas in and to airtight space. CONSTITUTION:On one-side surfaces of transparent substrates 1 and 1', optical recording material layers 2 and 2' are formed, and on the external circumference 6 and internal circumference 7 of the layer 2 of the substrate 1, solventless adhesives 8 and 8' of epoxy resin mixed with a setting agent and defoamed are dropped to be applied to 50-500mum thickness, thus forming resin films 9 and 9'. Then, spacers 3 and 3' are arranged on the layers 9 and 9', and said adhesives 8 and 8' are dropped to form adhesive films 10 and 10' on the spacers 3 and 3'. The substrate 1' is set by being heated under some pressure with the layers 2 and 2' opposed, thus obtaining an optical recording medium which has airtight space 4. The adhesive 8 prevents the generation and external entry of a solvent, harmful gas, etc., so that the recording medium is stable and has long life.
JP56047440A 1981-03-31 1981-03-31 Manufacture of optical recording medium Pending JPS57164452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56047440A JPS57164452A (en) 1981-03-31 1981-03-31 Manufacture of optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56047440A JPS57164452A (en) 1981-03-31 1981-03-31 Manufacture of optical recording medium

Publications (1)

Publication Number Publication Date
JPS57164452A true JPS57164452A (en) 1982-10-09

Family

ID=12775200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56047440A Pending JPS57164452A (en) 1981-03-31 1981-03-31 Manufacture of optical recording medium

Country Status (1)

Country Link
JP (1) JPS57164452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960268A (en) * 1988-02-03 1990-10-02 Nitto Denko Corporation Spacer holder arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531002A (en) * 1976-05-13 1978-01-07 Philips Corp Radiation sensitive record

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531002A (en) * 1976-05-13 1978-01-07 Philips Corp Radiation sensitive record

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960268A (en) * 1988-02-03 1990-10-02 Nitto Denko Corporation Spacer holder arrangement

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