JPS5760543A - Recording medium for energy beam - Google Patents

Recording medium for energy beam

Info

Publication number
JPS5760543A
JPS5760543A JP55135600A JP13560080A JPS5760543A JP S5760543 A JPS5760543 A JP S5760543A JP 55135600 A JP55135600 A JP 55135600A JP 13560080 A JP13560080 A JP 13560080A JP S5760543 A JPS5760543 A JP S5760543A
Authority
JP
Japan
Prior art keywords
light
disc
energy beam
reflecting
recording medium
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.)
Granted
Application number
JP55135600A
Other languages
Japanese (ja)
Other versions
JPS6255221B2 (en
Inventor
Yasuyuki Goto
Nagaaki Etsuno
Shigeru Arai
Hironori Goto
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 JP55135600A priority Critical patent/JPS5760543A/en
Publication of JPS5760543A publication Critical patent/JPS5760543A/en
Publication of JPS6255221B2 publication Critical patent/JPS6255221B2/ja
Granted 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

  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To obtain an optical disc which can be reproduced through the reflecting light of laser light with weak power, by irradiating energy beam such as laser light on a disc laminating light reflecting material layers on a thermoplastic material layer and forming unevenness on the disc. CONSTITUTION:On a disc 12 made of a thermplastic material such as acrylic resin, a recording medium 8 for energy beam is formed by vacuum deposition of a light reflecting material layer 11 made of metal such as A, in about 30nm thickness. A light modulated into pulsive nature from an argon laser source 488nm in wavelength through a modulator 6 is concentrated to the medium 8 in spot via a lens 7 to produce a recess 13 of about 61nm depth on the resin 12 through the heat. It is preferrable to form the recess 13 into the groove of 1/8 or 1/4 depth of the wavelength of the reproducing laser light. Thus, since the recorded information is attenuated for the reflecting light through the irradiation of a weak argon laser, the information can be read out with a photodetector 9.
JP55135600A 1980-09-29 1980-09-29 Recording medium for energy beam Granted JPS5760543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55135600A JPS5760543A (en) 1980-09-29 1980-09-29 Recording medium for energy beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55135600A JPS5760543A (en) 1980-09-29 1980-09-29 Recording medium for energy beam

Publications (2)

Publication Number Publication Date
JPS5760543A true JPS5760543A (en) 1982-04-12
JPS6255221B2 JPS6255221B2 (en) 1987-11-18

Family

ID=15155601

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55135600A Granted JPS5760543A (en) 1980-09-29 1980-09-29 Recording medium for energy beam

Country Status (1)

Country Link
JP (1) JPS5760543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219247A (en) * 1986-03-20 1987-09-26 Canon Inc Optical recording medium and optical recording method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05224109A (en) * 1992-02-14 1993-09-03 Kyocera Corp Production of image device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210102A (en) * 1975-07-15 1977-01-26 Canon Inc Recording medium
JPS5232931A (en) * 1975-09-09 1977-03-12 Fuji Heavy Ind Ltd Method for coating joint surfaces of two parts
JPS5555448A (en) * 1978-10-19 1980-04-23 Philips Nv Record carrier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210102A (en) * 1975-07-15 1977-01-26 Canon Inc Recording medium
JPS5232931A (en) * 1975-09-09 1977-03-12 Fuji Heavy Ind Ltd Method for coating joint surfaces of two parts
JPS5555448A (en) * 1978-10-19 1980-04-23 Philips Nv Record carrier

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62219247A (en) * 1986-03-20 1987-09-26 Canon Inc Optical recording medium and optical recording method thereof
JPH0535489B2 (en) * 1986-03-20 1993-05-26 Canon Kk

Also Published As

Publication number Publication date
JPS6255221B2 (en) 1987-11-18

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