JPH0471258B2 - - Google Patents

Info

Publication number
JPH0471258B2
JPH0471258B2 JP58177882A JP17788283A JPH0471258B2 JP H0471258 B2 JPH0471258 B2 JP H0471258B2 JP 58177882 A JP58177882 A JP 58177882A JP 17788283 A JP17788283 A JP 17788283A JP H0471258 B2 JPH0471258 B2 JP H0471258B2
Authority
JP
Japan
Prior art keywords
protective layer
optical disk
central hole
layer
center hole
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
JP58177882A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6070539A (ja
Inventor
Yoshinori Fujimori
Hiroshi Imagawa
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.)
Toshiba Corp
Original Assignee
Tokyo Shibaura Electric Co 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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
Priority to JP58177882A priority Critical patent/JPS6070539A/ja
Publication of JPS6070539A publication Critical patent/JPS6070539A/ja
Publication of JPH0471258B2 publication Critical patent/JPH0471258B2/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
    • 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
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
    • 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)
JP58177882A 1983-09-28 1983-09-28 光デイスク Granted JPS6070539A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58177882A JPS6070539A (ja) 1983-09-28 1983-09-28 光デイスク

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58177882A JPS6070539A (ja) 1983-09-28 1983-09-28 光デイスク

Publications (2)

Publication Number Publication Date
JPS6070539A JPS6070539A (ja) 1985-04-22
JPH0471258B2 true JPH0471258B2 (cs) 1992-11-13

Family

ID=16038701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58177882A Granted JPS6070539A (ja) 1983-09-28 1983-09-28 光デイスク

Country Status (1)

Country Link
JP (1) JPS6070539A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116323186A (zh) * 2020-10-07 2023-06-23 Ａｇｃ株式会社 车辆用玻璃及其制造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113536A (ja) * 1982-12-20 1984-06-30 Nec Corp 光記録媒体
JPS59175046A (ja) * 1983-03-23 1984-10-03 Matsushita Electric Ind Co Ltd 情報担体デイスク

Also Published As

Publication number Publication date
JPS6070539A (ja) 1985-04-22

Similar Documents

Publication Publication Date Title
KR100528106B1 (ko) 광학기록매체및광디스크장치
CN1224029C (zh) 制造光盘的方法
KR20020021064A (ko) 광정보 기록매체의 제조방법, 제조장치 및 광정보 기록매체
US4319252A (en) Optical data storage and recording medium having a replaceable protective coverplate
US20010022775A1 (en) Optical disk and method of manufacturing the same
KR100284728B1 (ko) 광 디스크 제조방법 및 이 제조방법에 의한 광 디스크
KR100627215B1 (ko) 광 기록 매체, 광 기록 매체를 이용한 광 기록 및 재생 장치 및 광 기록 매체의 제조 방법
JP3079963B2 (ja) 光ディスク及びその製造方法
JP2001043566A (ja) 光情報媒体およびその製造方法
CN1201313C (zh) 光盘及其制造方法
CN1203482C (zh) 圆形光学存储盘的制造方法
JPH0471258B2 (cs)
CN1244101C (zh) 光记录媒体及其制造方法
JP2008310917A (ja) 複数層光ディスク及び記録再生方法
EP0074058A2 (en) Disc coating method
JPS58137146A (ja) 光学式記録再生円盤
EP1052630A1 (en) Optical disc with transparent film
KR20040058283A (ko) 스탬퍼의 제조방법, 원판, 지지 구조와, 이 스탬퍼의 용도
JP3643493B2 (ja) 光ディスク貼り合わせ装置
CN1232970C (zh) 盘型光记录媒体及其再现限制方法
CN1396593A (zh) 制造光盘的方法
JPS60197957A (ja) 光デイスクメモリ
JPS6047247A (ja) 記録媒体
JPH02260144A (ja) 情報記録媒体およびその記録または再生方法
JPH08329623A (ja) 光情報記録媒体