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JPS5724042A - Optical information recording medium and its production - Google Patents

Optical information recording medium and its production

Info

Publication number
JPS5724042A
JPS5724042A JP9925680A JP9925680A JPS5724042A JP S5724042 A JPS5724042 A JP S5724042A JP 9925680 A JP9925680 A JP 9925680A JP 9925680 A JP9925680 A JP 9925680A JP S5724042 A JPS5724042 A JP S5724042A
Authority
JP
Japan
Prior art keywords
light
plate
curing
stamper
exposure
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
JP9925680A
Other languages
Japanese (ja)
Other versions
JPS6318254B2 (en
Inventor
Masanobu Yamamoto
Hiroshi Yubi
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9925680A priority Critical patent/JPS5724042A/en
Publication of JPS5724042A publication Critical patent/JPS5724042A/en
Publication of JPS6318254B2 publication Critical patent/JPS6318254B2/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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To obtain with a low cost an optical information recording medium which is free from uneven thickness and excellent in smoothness, by performing an exposure treatment while pressing a retainer plate relatively toward a stamper and then curing light curing resin laminated via a substrate. CONSTITUTION:A metallic stamper 20 has an uneven surface corresponding to the unevenness of an information recording surface. A substrate 40 such as an acrylic resin plate, that has the light-transmittable properties to a readout laser beam 3 as well as to the light such as the ultraviolet rays which is used for exposure and curing to the 1st light curing resin layer 31 is put on the stamper 20 via the layer 31. Furthermore, a retainer plate 42 having a smooth surface 42a of a glass plate, etc. is put on the substrate 40 via the 2nd light curing resin layer 32 which can be cured in the same way by the light that gives a hardening process to the 1st resin material. Then both the plate 42 and the stamper 20 are pressed relatively. Under such conditions, the light given from a light source 43 to give an exposure to both layers 31 and 32 is irradiated from the side of the plate 42 to ensure a simultaneous exposure and curing of both layers 31 and 32.
JP9925680A 1980-07-18 1980-07-18 Optical information recording medium and its production Granted JPS5724042A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9925680A JPS5724042A (en) 1980-07-18 1980-07-18 Optical information recording medium and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9925680A JPS5724042A (en) 1980-07-18 1980-07-18 Optical information recording medium and its production

Publications (2)

Publication Number Publication Date
JPS5724042A true JPS5724042A (en) 1982-02-08
JPS6318254B2 JPS6318254B2 (en) 1988-04-18

Family

ID=14242625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9925680A Granted JPS5724042A (en) 1980-07-18 1980-07-18 Optical information recording medium and its production

Country Status (1)

Country Link
JP (1) JPS5724042A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569303A (en) * 1979-07-05 1981-01-30 Taiho Kogyo Co Ltd Composite sliding material
JPS5794502A (en) * 1981-09-28 1982-06-12 Taiho Kogyo Co Ltd Manufacture of sliding material
JPS5979445A (en) * 1982-10-28 1984-05-08 Sharp Corp Photomagnetic memory element
JPS61214242A (en) * 1985-03-20 1986-09-24 Hitachi Maxell Ltd Optical disc
US4619804A (en) * 1985-04-15 1986-10-28 Eastman Kodak Company Fabricating optical record media
JPS6323236A (en) * 1987-05-21 1988-01-30 Sanyo Electric Co Ltd Structure of disk record
JPH01218808A (en) * 1988-02-29 1989-09-01 Matsushita Electric Ind Co Ltd Manufacture of optical element press molding die
JPH03248341A (en) * 1990-02-26 1991-11-06 Nec Corp Optical disk substrate
EP2808709A4 (en) * 2012-03-30 2015-05-13 Hitachi High Tech Corp Diffraction grating and production method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52124309A (en) * 1976-04-09 1977-10-19 Polygram Gmbh Diskklike information carrier having high packing density and mathod of producing same
JPS5333244A (en) * 1976-09-09 1978-03-29 Kanegafuchi Chem Ind Co Ltd Apparatuses for preparating coagulated latexes
JPS54138406A (en) * 1978-04-17 1979-10-26 Philips Nv Information disk and method of fabricating same
JPS54179104U (en) * 1978-06-07 1979-12-18
JPS5538655A (en) * 1978-09-08 1980-03-18 Sumitomo Chem Co Ltd Optical signal recording and reproducing member

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52124309A (en) * 1976-04-09 1977-10-19 Polygram Gmbh Diskklike information carrier having high packing density and mathod of producing same
JPS5333244A (en) * 1976-09-09 1978-03-29 Kanegafuchi Chem Ind Co Ltd Apparatuses for preparating coagulated latexes
JPS54138406A (en) * 1978-04-17 1979-10-26 Philips Nv Information disk and method of fabricating same
JPS54179104U (en) * 1978-06-07 1979-12-18
JPS5538655A (en) * 1978-09-08 1980-03-18 Sumitomo Chem Co Ltd Optical signal recording and reproducing member

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6124444B2 (en) * 1979-07-05 1986-06-11 Taiho Kogyo Co Ltd
JPS569303A (en) * 1979-07-05 1981-01-30 Taiho Kogyo Co Ltd Composite sliding material
JPS5794502A (en) * 1981-09-28 1982-06-12 Taiho Kogyo Co Ltd Manufacture of sliding material
JPH0479076B2 (en) * 1982-10-28 1992-12-14 Sharp Kk
JPS5979445A (en) * 1982-10-28 1984-05-08 Sharp Corp Photomagnetic memory element
JPS61214242A (en) * 1985-03-20 1986-09-24 Hitachi Maxell Ltd Optical disc
US4619804A (en) * 1985-04-15 1986-10-28 Eastman Kodak Company Fabricating optical record media
JPS6323236A (en) * 1987-05-21 1988-01-30 Sanyo Electric Co Ltd Structure of disk record
JPH0330217B2 (en) * 1987-05-21 1991-04-26
JPH01218808A (en) * 1988-02-29 1989-09-01 Matsushita Electric Ind Co Ltd Manufacture of optical element press molding die
JPH0615184B2 (en) * 1988-02-29 1994-03-02 松下電器産業株式会社 Method for producing die for press-molding optical element
JPH03248341A (en) * 1990-02-26 1991-11-06 Nec Corp Optical disk substrate
EP2808709A4 (en) * 2012-03-30 2015-05-13 Hitachi High Tech Corp Diffraction grating and production method thereof
US9261631B2 (en) 2012-03-30 2016-02-16 Hitachi High-Technologies Corporation Method for manufacturing a diffraction grating

Also Published As

Publication number Publication date
JPS6318254B2 (en) 1988-04-18

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