JPH0212770U - - Google Patents

Info

Publication number
JPH0212770U
JPH0212770U JP1989003455U JP345589U JPH0212770U JP H0212770 U JPH0212770 U JP H0212770U JP 1989003455 U JP1989003455 U JP 1989003455U JP 345589 U JP345589 U JP 345589U JP H0212770 U JPH0212770 U JP H0212770U
Authority
JP
Japan
Prior art keywords
signal
section
disk
signal recording
recording section
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
JP1989003455U
Other languages
English (en)
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 filed Critical
Publication of JPH0212770U publication Critical patent/JPH0212770U/ja
Pending 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • 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

  • Optical Record Carriers And Manufacture Thereof (AREA)

Description

【図面の簡単な説明】
第１図は本考案のコンパクトデイスクの斜視図
、第２図は本考案のコンパクトデイスクの要部拡
大断面図、第３図は本考案によるデイスク基板の
ストーキング態様図、第４図は従来のデイスク基
板のストーキング態様図である。 図面の主要符号、１０……コンパクトデイスク
、１１……デイスク基板、１２……中央孔、１３
……信号開始部、１４……非信号記録区間、１５
……ピツト、１６……信号終了部、１７……信号
記録区間、１８……表面、１８′……裏面、１９
……環状の突出部。

Claims (1)

    【実用新案登録請求の範囲】
  1. デイスク基板１１の中央孔１２から信号開始部
    １３までの非信号記録区間１４と、デイジタル信
    号をもつてピツト１５が無数に形成された信号開
    始部１３から信号終了部１６までの信号記録区間
    １７を有するコンパクトデイスク１０において、
    前記中央孔１２から信号開始部１３までの非信号
    記録区間１４の表面１８またはその裏面１８′に
    所定の大きさの環状突出部１９をデイスク基板１
    １と一体に形成したことを特徴とする環状突出部
    を有するコンパクトデイスク。
JP1989003455U 1988-07-09 1989-01-13 Pending JPH0212770U (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR880011170 1988-07-09

Publications (1)

Publication Number Publication Date
JPH0212770U true JPH0212770U (ja) 1990-01-26

Family

ID=31492730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989003455U Pending JPH0212770U (ja) 1988-07-09 1989-01-13

Country Status (3)

Country Link
JP (1) JPH0212770U (ja)
CN (1) CN2054931U (ja)
DE (1) DE8815125U1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060292U (ja) * 1973-10-01 1975-06-03

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5453975A (en) * 1991-12-16 1995-09-26 Sharp Kabushiki Kaisha Optical disc with surface coating and manufacturing method therefor
JP2768862B2 (ja) * 1991-12-16 1998-06-25 シャープ株式会社 光ディスクおよびその表面処理方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020203U (ja) * 1973-06-18 1975-03-07
JPS6245772B2 (ja) * 1980-07-10 1987-09-29 Meidensha Electric Mfg Co Ltd

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5020203U (ja) * 1973-06-18 1975-03-07
JPS6245772B2 (ja) * 1980-07-10 1987-09-29 Meidensha Electric Mfg Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5060292U (ja) * 1973-10-01 1975-06-03

Also Published As

Publication number Publication date
CN2054931U (zh) 1990-03-21
DE8815125U1 (de) 1989-01-19

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