JPH0366736B2 - - Google Patents

Info

Publication number
JPH0366736B2
JPH0366736B2 JP56161634A JP16163481A JPH0366736B2 JP H0366736 B2 JPH0366736 B2 JP H0366736B2 JP 56161634 A JP56161634 A JP 56161634A JP 16163481 A JP16163481 A JP 16163481A JP H0366736 B2 JPH0366736 B2 JP H0366736B2
Authority
JP
Japan
Prior art keywords
recording
film
light
optical
refractive index
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
JP56161634A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5862842A (ja
Inventor
Takeo Oota
Tatsushi Nakamura
Nobuo Akahira
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56161634A priority Critical patent/JPS5862842A/ja
Priority to US06/433,264 priority patent/US4547875A/en
Priority to DE8282305365T priority patent/DE3272168D1/de
Priority to EP82305365A priority patent/EP0077623B1/en
Publication of JPS5862842A publication Critical patent/JPS5862842A/ja
Publication of JPH0366736B2 publication Critical patent/JPH0366736B2/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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • 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)
JP56161634A 1981-10-09 1981-10-09 光学的記録用円盤 Granted JPS5862842A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56161634A JPS5862842A (ja) 1981-10-09 1981-10-09 光学的記録用円盤
US06/433,264 US4547875A (en) 1981-10-09 1982-10-07 Optical recording and retrieving disc
DE8282305365T DE3272168D1 (en) 1981-10-09 1982-10-08 Optical recording and retrieving disc
EP82305365A EP0077623B1 (en) 1981-10-09 1982-10-08 Optical recording and retrieving disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56161634A JPS5862842A (ja) 1981-10-09 1981-10-09 光学的記録用円盤

Publications (2)

Publication Number Publication Date
JPS5862842A JPS5862842A (ja) 1983-04-14
JPH0366736B2 true JPH0366736B2 (en, 2012) 1991-10-18

Family

ID=15738909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56161634A Granted JPS5862842A (ja) 1981-10-09 1981-10-09 光学的記録用円盤

Country Status (4)

Country Link
US (1) US4547875A (en, 2012)
EP (1) EP0077623B1 (en, 2012)
JP (1) JPS5862842A (en, 2012)
DE (1) DE3272168D1 (en, 2012)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5996546A (ja) * 1982-11-25 1984-06-04 Sony Corp 反射型光学記録体
DE3483854D1 (de) * 1983-07-14 1991-02-07 Matsushita Electric Ind Co Ltd Platte zum aufzeichnen und wiedergeben von optischen informationen.
JPS6020335A (ja) * 1983-07-14 1985-02-01 Matsushita Electric Ind Co Ltd 光学情報記録再生用円盤
JPH07107744B2 (ja) * 1984-05-16 1995-11-15 松下電器産業株式会社 光ディスクの再生方法
JPH0677337B2 (ja) * 1984-07-20 1994-09-28 日本電気株式会社 光デイスク
JPH0677338B2 (ja) * 1984-07-27 1994-09-28 日本電気株式会社 光デイスク
JPH01189039A (ja) * 1988-01-22 1989-07-28 Mitsubishi Electric Corp 光学式情報記録担体
US5249175A (en) * 1988-09-09 1993-09-28 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method therefor
MY105953A (en) * 1989-07-24 1995-02-28 Taiyo Yuden Kk Optical information recording medium and recording method.
FR2661769B1 (fr) * 1990-05-02 1995-04-21 Thomson Csf Systeme d'enregistrement optique de donnees sur disque, et procedes de lecture et ecriture correspondants.
JP3179899B2 (ja) * 1992-11-24 2001-06-25 パイオニア株式会社 記録型光ディスク
US5986997A (en) * 1997-09-10 1999-11-16 Imation Corp. Updatable optical data storage disc having reduced crosstalk between tracks, and drive for same
US6865745B2 (en) * 2001-08-10 2005-03-08 Wea Manufacturing, Inc. Methods and apparatus for reducing the shrinkage of an optical disc's clamp area and the resulting optical disc

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931459A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc
NL7803517A (nl) * 1978-04-03 1979-10-05 Philips Nv Registratiedrager met een optisch uitleesbare fase- struktuur en inrichting voor het uitlezen.
US4310910A (en) * 1978-09-19 1982-01-12 Rca Corporation Optimal polarization for the optical readout of high density video recording
NL7810462A (nl) * 1978-10-19 1980-04-22 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur
NL7810463A (nl) * 1978-10-19 1980-04-22 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur.
NL7811003A (nl) * 1978-11-06 1980-05-08 Philips Nv Schijfvormige, optisch uitleesbare registratiedrager, als opslagmedium voor data-informatie.
US4233626A (en) * 1979-01-11 1980-11-11 Rca Corporation Playback information record using phase cancellation for reading
NL7906576A (nl) * 1979-09-03 1981-03-05 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur, alsmede uitleesinrichting daarvoor.
NL7907180A (nl) * 1979-09-27 1981-03-31 Philips Nv Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur, alsmede inrichting voor het uitlezen daarvan.
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
FR2490858B1 (fr) * 1980-09-25 1986-04-04 Rca Corp Milieu d'enregistrement optique a sensibilite variable et disque contenant de l'information, realise a l'aide d'un tel milieu
NL8100098A (nl) * 1981-01-12 1982-08-02 Philips Nv Registratiedrager met optisch uitleesbare informatiestruktuur.
US4359750A (en) * 1981-04-30 1982-11-16 Eastman Kodak Company Optical disc structure

Also Published As

Publication number Publication date
DE3272168D1 (en) 1986-08-28
EP0077623A1 (en) 1983-04-27
EP0077623B1 (en) 1986-07-23
JPS5862842A (ja) 1983-04-14
US4547875A (en) 1985-10-15

Similar Documents

Publication Publication Date Title
JPH0255850B2 (en, 2012)
JPH0366736B2 (en, 2012)
US4359750A (en) Optical disc structure
JPH0248983B2 (en, 2012)
JPH0127493B2 (en, 2012)
US5450387A (en) Optical pickup apparatus for phase changing optical disk
US5060223A (en) Optical type information recording medium having specified pit and guide groove shapes
JPH05197962A (ja) 光ディスク及び光ディスク再生装置
CA1269163A (en) Photocell embedded in transparent resin body
KR100200868B1 (ko) 광픽업 장치
KR100633476B1 (ko) 광 기록매체
KR100458727B1 (ko) 광기록매체
US5953304A (en) Optical disc recording or playback device with corrected focus optical scanning
JPH0734264B2 (ja) 光学式情報記録再生装置
JPH0127494B2 (en, 2012)
US20070247984A1 (en) Optical Record Carrier and Optical Scanning Device
JPH04276335A (ja) 光情報記録再生装置
JPS6313144A (ja) 案内溝付光学式記録デイスク
JPH0495233A (ja) 光学式ピックアップ装置
JP2739614B2 (ja) 光記録ディスク
JP2790729B2 (ja) 光情報記録再生装置
JPH10320821A (ja) 光ピックアップ装置およびそれを用いた光学記録媒体駆動装置
JPS62177732A (ja) 光学情報記録再生方法及び装置
JP2004070991A (ja) 光記録媒体およびその再生装置、再生方法
JPH0447528A (ja) 光学式再生装置