JPH0534737B2 - - Google Patents

Info

Publication number
JPH0534737B2
JPH0534737B2 JP58159457A JP15945783A JPH0534737B2 JP H0534737 B2 JPH0534737 B2 JP H0534737B2 JP 58159457 A JP58159457 A JP 58159457A JP 15945783 A JP15945783 A JP 15945783A JP H0534737 B2 JPH0534737 B2 JP H0534737B2
Authority
JP
Japan
Prior art keywords
recording medium
pregroove
optical recording
optical
master
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.)
Expired - Lifetime
Application number
JP58159457A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6050733A (ja
Inventor
Masanobu Yamamoto
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 JP58159457A priority Critical patent/JPS6050733A/ja
Publication of JPS6050733A publication Critical patent/JPS6050733A/ja
Publication of JPH0534737B2 publication Critical patent/JPH0534737B2/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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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)
  • Optical Head (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
JP58159457A 1983-08-31 1983-08-31 光学式記録媒体及びその原盤の製造装置 Granted JPS6050733A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58159457A JPS6050733A (ja) 1983-08-31 1983-08-31 光学式記録媒体及びその原盤の製造装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58159457A JPS6050733A (ja) 1983-08-31 1983-08-31 光学式記録媒体及びその原盤の製造装置

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP6334465A Division JP2611681B2 (ja) 1994-12-19 1994-12-19 光学式記録媒体
JP9049034A Division JP2998681B2 (ja) 1997-03-04 1997-03-04 光学式記録媒体及びその原盤の作成方法

Publications (2)

Publication Number Publication Date
JPS6050733A JPS6050733A (ja) 1985-03-20
JPH0534737B2 true JPH0534737B2 (en, 2012) 1993-05-24

Family

ID=15694179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58159457A Granted JPS6050733A (ja) 1983-08-31 1983-08-31 光学式記録媒体及びその原盤の製造装置

Country Status (1)

Country Link
JP (1) JPS6050733A (en, 2012)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2613199B2 (ja) * 1986-12-10 1997-05-21 株式会社日立製作所 情報再生方法および光ディスク
JP2613200B2 (ja) * 1987-01-09 1997-05-21 株式会社日立製作所 光デイスク原盤作製装置
JPH01107336A (ja) * 1987-10-21 1989-04-25 Hitachi Ltd 光デイスク

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53103715A (en) * 1977-02-23 1978-09-09 Victor Co Of Japan Ltd Grooveless disc for information recording medium
JPS56145535A (en) * 1980-04-15 1981-11-12 Matsushita Electric Ind Co Ltd Disc for optical recording
JPS5733441A (en) * 1980-08-07 1982-02-23 Matsushita Electric Ind Co Ltd Optical information recorder and reproducer
NL8100098A (nl) * 1981-01-12 1982-08-02 Philips Nv Registratiedrager met optisch uitleesbare informatiestruktuur.
JPS5841446A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 光学的情報追跡方式
JPS5850638A (ja) * 1981-09-18 1983-03-25 Fujitsu Ltd 光デイスク用プリグル−プ原盤の製造方法
JPS5873026A (ja) * 1981-10-26 1983-05-02 Nippon Telegr & Teleph Corp <Ntt> 溝付光デイスク
JPS5877048A (ja) * 1981-10-30 1983-05-10 Pioneer Electronic Corp 光磁気記録再生方式における読取装置
JPS58100249A (ja) * 1981-12-09 1983-06-14 Matsushita Electric Ind Co Ltd 光学情報記録用担体
JPS58102347A (ja) * 1981-12-11 1983-06-17 Mitsubishi Electric Corp 光デイスク記録担体
JPS58165794U (ja) * 1982-04-27 1983-11-04 株式会社東芝 光学式情報記憶媒体

Also Published As

Publication number Publication date
JPS6050733A (ja) 1985-03-20

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