JPS5271202A - Production of original disc of information recording media - Google Patents

Production of original disc of information recording media

Info

Publication number
JPS5271202A
JPS5271202A JP50147718A JP14771875A JPS5271202A JP S5271202 A JPS5271202 A JP S5271202A JP 50147718 A JP50147718 A JP 50147718A JP 14771875 A JP14771875 A JP 14771875A JP S5271202 A JPS5271202 A JP S5271202A
Authority
JP
Japan
Prior art keywords
production
information recording
recording media
original disc
light beam
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
JP50147718A
Other languages
Japanese (ja)
Other versions
JPS583298B2 (en
Inventor
Junji Kuroda
Ichiro Ueno
Hideaki Takehara
Kosei Wada
Yoshihiko Honjo
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP50147718A priority Critical patent/JPS583298B2/en
Publication of JPS5271202A publication Critical patent/JPS5271202A/en
Publication of JPS583298B2 publication Critical patent/JPS583298B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture

Landscapes

  • Manufacturing Optical Record Carriers (AREA)

Abstract

PURPOSE:Molding efficiency is improved by forming a thin film of a light beam sensitive material on a substrate formed thereon with a thin metal film, scanning the substrate with a light beam to form guide grooves and making the pitch of the guide grooves constant.
JP50147718A 1975-12-11 1975-12-11 How do you know what to do? Expired JPS583298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50147718A JPS583298B2 (en) 1975-12-11 1975-12-11 How do you know what to do?

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50147718A JPS583298B2 (en) 1975-12-11 1975-12-11 How do you know what to do?

Publications (2)

Publication Number Publication Date
JPS5271202A true JPS5271202A (en) 1977-06-14
JPS583298B2 JPS583298B2 (en) 1983-01-20

Family

ID=15436612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50147718A Expired JPS583298B2 (en) 1975-12-11 1975-12-11 How do you know what to do?

Country Status (1)

Country Link
JP (1) JPS583298B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786139A (en) * 1980-09-25 1982-05-29 Rca Corp Optical recording medium
JPS6168746A (en) * 1984-09-04 1986-04-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Formation of mold insert for producing optical memory disc
JPS6180631A (en) * 1984-09-28 1986-04-24 Kyodo Printing Co Ltd Optical read card and its manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786139A (en) * 1980-09-25 1982-05-29 Rca Corp Optical recording medium
JPS6168746A (en) * 1984-09-04 1986-04-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Formation of mold insert for producing optical memory disc
JPS6180631A (en) * 1984-09-28 1986-04-24 Kyodo Printing Co Ltd Optical read card and its manufacture

Also Published As

Publication number Publication date
JPS583298B2 (en) 1983-01-20

Similar Documents

Publication Publication Date Title
JPS5266405A (en) Optical recording system of information recording discs
ES413863A1 (en) PROCEDURE FOR FORMING A MEDIA FOR STORAGE OF INFORMATION.
JPS5690438A (en) Optical recording medium
JPS5271202A (en) Production of original disc of information recording media
FR2356235A1 (en) MAGNETIC RECORDING SUPPORT AND MANUFACTURING PROCESS
GB1509495A (en) Record disc and method of producing the same
JPS5264905A (en) Part for recording information
JPS52143838A (en) Recording method by laser beam
JPS5320770A (en) Production of thin film fine patterns
JPS5296521A (en) Production of information recording medium master disc
JPS5271201A (en) Production of oridinal disc of information recording media
JPS52108803A (en) Information recording element
JPS5292520A (en) Materials for recording
JPS5237007A (en) Optical recording reproducing equipment
JPS52130304A (en) Information recording material
JPS5220033A (en) Layer recording device
JPS5250702A (en) Optical information recording and reproduction apparatus
JPS52107801A (en) Manufacture for information recording media original disc
JPS5331109A (en) Information recording member
JPS5367405A (en) Information recording member
JPS5374403A (en) Optical imformation recorder
JPS522420A (en) Floating type thin film magnetic head
JPS5361303A (en) Formation method of protecting layer of recording member
JPS5295215A (en) Information recording material
JPS52132806A (en) Information recording member