JPS5770695A - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
JPS5770695A
JPS5770695A JP56093681A JP9368181A JPS5770695A JP S5770695 A JPS5770695 A JP S5770695A JP 56093681 A JP56093681 A JP 56093681A JP 9368181 A JP9368181 A JP 9368181A JP S5770695 A JPS5770695 A JP S5770695A
Authority
JP
Japan
Prior art keywords
recording medium
optical recording
optical
medium
recording
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
JP56093681A
Other languages
English (en)
Other versions
JPH0158079B2 (ja
Inventor
Etsutenbaagu Maikeru
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of JPS5770695A publication Critical patent/JPS5770695A/ja
Publication of JPH0158079B2 publication Critical patent/JPH0158079B2/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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24053—Protective topcoat layers lying opposite to the light entrance side, e.g. layers for preventing electrostatic charging
    • 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

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
JP56093681A 1980-10-21 1981-06-16 Optical recording medium Granted JPS5770695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/199,314 US4383311A (en) 1980-10-21 1980-10-21 Optical recording medium and information record with indented overcoat

Publications (2)

Publication Number Publication Date
JPS5770695A true JPS5770695A (en) 1982-05-01
JPH0158079B2 JPH0158079B2 (ja) 1989-12-08

Family

ID=22737046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093681A Granted JPS5770695A (en) 1980-10-21 1981-06-16 Optical recording medium

Country Status (6)

Country Link
US (1) US4383311A (ja)
JP (1) JPS5770695A (ja)
DE (1) DE3123539A1 (ja)
FR (1) FR2492568B1 (ja)
GB (1) GB2086638B (ja)
NL (1) NL191863C (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888844A (ja) * 1981-11-20 1983-05-27 Matsushita Electric Ind Co Ltd 光記録媒体
JPS58118293A (ja) * 1982-01-08 1983-07-14 Dainippon Ink & Chem Inc 光記録媒体
JPS5994255A (ja) * 1982-09-29 1984-05-30 スト−リツジ・テクノロジ−・コ−ポレ−シヨン 改良型光記録媒体及びその製法
JPH04147445A (ja) * 1990-10-05 1992-05-20 Del Mar Avionics 第２表面光学的記憶装置を製造する方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3229573A1 (de) * 1981-08-17 1983-02-24 RCA Corp., 10020 New York, N.Y. Optisches aufzeichnungsmaterial, informationstraeger und verfahren zum herstellen eines optischen aufzeichnungsmaterials
NL8202229A (nl) * 1982-06-02 1984-01-02 Docdata Bv Medium voor het registreren van optisch uitleesbare informatie.
JPS6057553A (ja) * 1983-06-01 1985-04-03 バロ−ス・コ−ポレ−シヨン 光学メモリデイスクとその製造方法
CA1198209A (en) * 1983-11-24 1985-12-17 Northern Telecom Limited Optical disc
JPS60205840A (ja) * 1984-03-30 1985-10-17 Tdk Corp 光記録媒体
US4568952A (en) * 1984-12-10 1986-02-04 Rca Corporation Optical record blank and information record
DE3850050T2 (de) * 1987-11-18 1994-09-22 Sharp Kk Optisches Speichermedium.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251943A (en) * 1975-10-21 1977-04-26 Energy Conversion Devices Inc Image forming method
JPS55130796A (en) * 1979-01-26 1980-10-09 Exxon Research Engineering Co Light recording medium

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069487A (en) * 1974-12-26 1978-01-17 Canon Kabushiki Kaisha Recording member and process for recording
US4175145A (en) * 1975-04-28 1979-11-20 Teletype Corporation Making memory structure for laser recording system
JPS5211906A (en) * 1975-07-18 1977-01-29 Hitachi Ltd Material for recording
US4097895A (en) * 1976-03-19 1978-06-27 Rca Corporation Multilayer optical record
DE2618773C2 (de) * 1976-04-29 1985-02-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Aufzeichnungsträger für Daten
US4074282A (en) * 1976-05-13 1978-02-14 North American Philips Corporation Radiation-sensitive record with protected sensitive surface
US4216501A (en) * 1977-03-28 1980-08-05 Rca Corporation Optical anti-reflective information record
JPS53141040A (en) * 1977-05-16 1978-12-08 Hitachi Ltd Information recording material
US4101907A (en) * 1977-08-29 1978-07-18 Rca Corporation Overcoat structure for optical video disc
NL7802860A (nl) * 1978-03-16 1979-09-18 Philips Nv Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen.
DE2966968D1 (en) * 1978-08-28 1984-06-14 Discovision Ass Method for moulding a videodisc composition
JPS5634154A (en) * 1979-08-27 1981-04-06 Toshiba Corp Optical disc for write-in
US4285056A (en) * 1979-10-17 1981-08-18 Rca Corporation Replicable optical recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5251943A (en) * 1975-10-21 1977-04-26 Energy Conversion Devices Inc Image forming method
JPS55130796A (en) * 1979-01-26 1980-10-09 Exxon Research Engineering Co Light recording medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5888844A (ja) * 1981-11-20 1983-05-27 Matsushita Electric Ind Co Ltd 光記録媒体
JPS58118293A (ja) * 1982-01-08 1983-07-14 Dainippon Ink & Chem Inc 光記録媒体
JPH0155119B2 (ja) * 1982-01-08 1989-11-22 Dainippon Ink & Chemicals
JPS5994255A (ja) * 1982-09-29 1984-05-30 スト−リツジ・テクノロジ−・コ−ポレ−シヨン 改良型光記録媒体及びその製法
JPH04147445A (ja) * 1990-10-05 1992-05-20 Del Mar Avionics 第２表面光学的記憶装置を製造する方法

Also Published As

Publication number Publication date
DE3123539C2 (ja) 1989-07-06
NL191863B (nl) 1996-05-01
FR2492568A1 (fr) 1982-04-23
NL8102983A (nl) 1982-05-17
NL191863C (nl) 1996-09-03
DE3123539A1 (de) 1982-05-27
FR2492568B1 (fr) 1989-01-13
GB2086638A (en) 1982-05-12
JPH0158079B2 (ja) 1989-12-08
US4383311A (en) 1983-05-10
GB2086638B (en) 1984-09-05

Similar Documents

Publication Publication Date Title
DE3264625D1 (en) Optical recording medium
JPS57185198A (en) Optical recording medium
DE3364217D1 (en) Optical recording medium
GB2061594B (en) Optical recording medium
GB2061595B (en) Optical recording medium
JPS5786139A (en) Optical recording medium
DE3364607D1 (en) Optical type information recording medium
JPS56105343A (en) Recording media
JPS5727790A (en) Optical recording element
EP0171045A3 (en) Optical recording medium
GB2165264B (en) An optical recording medium
DE3570144D1 (en) Optical recording medium
DE3176118D1 (en) Data recording medium
EP0179436A3 (en) Optical recording medium
JPS55130796A (en) Light recording medium
GB2131222B (en) Optical recording media
GB2164061B (en) Optical recording medium
DE3170843D1 (en) Recording medium
JPS5770695A (en) Optical recording medium
EP0083991A3 (en) Optical type information recording medium
EP0183570A3 (en) Optical recording medium
GB8426038D0 (en) Optical recording medium
DE3376159D1 (en) Erasable optical recording medium
DE3172300D1 (en) Recording media
GB2158281B (en) Optical recording medium