JPS59138029U - 光学的に読取可能な記録デイスク - Google Patents

光学的に読取可能な記録デイスク

Info

Publication number
JPS59138029U
JPS59138029U JP1984014198U JP1419884U JPS59138029U JP S59138029 U JPS59138029 U JP S59138029U JP 1984014198 U JP1984014198 U JP 1984014198U JP 1419884 U JP1419884 U JP 1419884U JP S59138029 U JPS59138029 U JP S59138029U
Authority
JP
Japan
Prior art keywords
disk
readable recording
optically readable
base body
cover
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
JP1984014198U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0319065Y2 (enExample
Inventor
ペーター・ヨハンネス・ミッチエル・ヤンセーン
Original Assignee
エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン
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 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン filed Critical エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン
Publication of JPS59138029U publication Critical patent/JPS59138029U/ja
Application granted granted Critical
Publication of JPH0319065Y2 publication Critical patent/JPH0319065Y2/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
    • G11B7/24015—Air-sandwiched discs
    • 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
    • G11B7/24018—Laminated discs
    • G11B7/24027—Layers; Shape, structure or physical properties thereof

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
JP1984014198U 1983-02-09 1984-02-06 光学的に読取可能な記録デイスク Granted JPS59138029U (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300478 1983-02-09
NL8300478A NL8300478A (nl) 1983-02-09 1983-02-09 Optisch uitleesbare geheugenschijf.

Publications (2)

Publication Number Publication Date
JPS59138029U true JPS59138029U (ja) 1984-09-14
JPH0319065Y2 JPH0319065Y2 (enExample) 1991-04-23

Family

ID=19841382

Family Applications (2)

Application Number Title Priority Date Filing Date
JP1984014198U Granted JPS59138029U (ja) 1983-02-09 1984-02-06 光学的に読取可能な記録デイスク
JP1990095494U Expired - Lifetime JPH0525065Y2 (enExample) 1983-02-09 1990-09-12

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP1990095494U Expired - Lifetime JPH0525065Y2 (enExample) 1983-02-09 1990-09-12

Country Status (10)

Country Link
US (1) US4510508A (enExample)
EP (1) EP0118146B1 (enExample)
JP (2) JPS59138029U (enExample)
KR (1) KR840008874A (enExample)
CA (1) CA1211559A (enExample)
DE (1) DE3479359D1 (enExample)
ES (1) ES8500493A1 (enExample)
HK (1) HK85891A (enExample)
NL (1) NL8300478A (enExample)
SG (1) SG84990G (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0562317A (ja) * 1991-06-05 1993-03-12 Sony Corp 情報デイスク用ターンテーブル

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216664A (en) * 1983-02-09 1993-06-01 U.S. Philips Corporation Optically readable disc with a centering member fixed to a transparent substrate
NL8300479A (nl) * 1983-02-09 1984-09-03 Philips Nv Optisch uitleesbare plaat.
JPS6085724U (ja) * 1983-11-17 1985-06-13 シャープ株式会社 光メモリ円板
NL8400477A (nl) * 1984-02-14 1985-09-02 Philips Nv Optisch uitleesbare geheugenschijf.
US5007040A (en) * 1984-09-22 1991-04-09 Canon Kabushiki Kaisha Magnetic recording and/or reproducing apparatus having a retaining mechanism for a disc-shaped magnetic record bearing medium
US4641152A (en) * 1986-02-24 1987-02-03 Producers Color Service, Inc. Fixturing apparatus for vibration dampened optical disc recording
US5293370A (en) * 1991-01-16 1994-03-08 Del Mar Avionics Method and apparatus for creating optical disc masters
JPH0554436A (ja) * 1991-08-20 1993-03-05 Pioneer Electron Corp 光記録媒体
US5427520A (en) * 1992-01-31 1995-06-27 Sony Corporation Mold device for fabricating disc substrate
US5787069A (en) * 1996-09-13 1998-07-28 Digital Armor Inc. Protective cover for an optical disc
US6424488B1 (en) 1999-02-22 2002-07-23 Seagate Technology Llc Peripherally extending disc ring to limit disc deflection and to provide disc stack balancing
US6317402B1 (en) * 1999-11-23 2001-11-13 Behavior Tech Computer Corporation Disk tray of optic disk drive having pressure balance device
CA2434538A1 (en) * 2000-12-14 2002-10-17 Ecd Systems, Inc. Systems and methods for optical media modification
US7562396B2 (en) * 2001-08-21 2009-07-14 Ecd Systems, Inc. Systems and methods for media authentication
US7643393B2 (en) * 2001-12-12 2010-01-05 Ecd Systems, Inc. Systems and methods for optical media modification
US7716485B2 (en) * 2002-02-01 2010-05-11 Sca Ipla Holdings Inc. Systems and methods for media authentication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548837A (en) * 1978-09-29 1980-04-08 Thomson Csf Optical disk
JPS5771247U (enExample) * 1980-10-17 1982-04-30
JPS58171735A (ja) * 1982-03-23 1983-10-08 トムソン−セエスエフ 可撓性の封止部材を含む保護されたオプチカルデイスク並びに再生及び／又は記録装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1766046A (en) * 1929-01-07 1930-06-24 Fed Telegraph Co Sound-reproducing system
US3815146A (en) * 1973-04-09 1974-06-04 Teletype Corp Record-turntable assembly and method of making
JPS5496002A (en) * 1978-01-13 1979-07-30 Hitachi Ltd Information recording plate
JPS6028041B2 (ja) * 1979-08-30 1985-07-02 パイオニア株式会社 信号記録用ディスクの製造方法
JPS5722224A (en) * 1980-07-17 1982-02-05 Ricoh Co Ltd Automatic focusing device in collapsible camera
JPS5756332U (enExample) * 1980-09-17 1982-04-02
JPS5788530A (en) * 1980-11-21 1982-06-02 Fujitsu Ltd Durability testing method for magnetic disc medium
US4365257A (en) * 1981-03-05 1982-12-21 Minnesota Mining And Manufacturing Company Stretched-film optical recording disc
US4365258A (en) * 1981-05-18 1982-12-21 Eastman Kodak Company Optical disc unit, fabrication method and cooperating write and/or read apparatus
JPS57203272A (en) * 1981-06-10 1982-12-13 Hitachi Ltd Disc locating mechanism
JPS57113466A (en) * 1981-09-18 1982-07-14 Sony Corp Magnetic sheet jacket
JPS5914199A (ja) * 1982-07-13 1984-01-25 Sony Corp 文字図形情報システムの端末装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5548837A (en) * 1978-09-29 1980-04-08 Thomson Csf Optical disk
JPS5771247U (enExample) * 1980-10-17 1982-04-30
JPS58171735A (ja) * 1982-03-23 1983-10-08 トムソン−セエスエフ 可撓性の封止部材を含む保護されたオプチカルデイスク並びに再生及び／又は記録装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0562317A (ja) * 1991-06-05 1993-03-12 Sony Corp 情報デイスク用ターンテーブル

Also Published As

Publication number Publication date
EP0118146B1 (en) 1989-08-09
JPH0525065Y2 (enExample) 1993-06-24
EP0118146A1 (en) 1984-09-12
KR840008874A (ko) 1984-12-19
US4510508A (en) 1985-04-09
HK85891A (en) 1991-11-08
SG84990G (en) 1991-01-04
ES529481A0 (es) 1984-10-01
JPH0345222U (enExample) 1991-04-25
DE3479359D1 (en) 1989-09-14
CA1211559A (en) 1986-09-16
JPH0319065Y2 (enExample) 1991-04-23
NL8300478A (nl) 1984-09-03
ES8500493A1 (es) 1984-10-01

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