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GB2005155A - Improved optical recording medium - Google Patents

Improved optical recording medium

Info

Publication number
GB2005155A
GB2005155A GB7833398A GB7833398A GB2005155A GB 2005155 A GB2005155 A GB 2005155A GB 7833398 A GB7833398 A GB 7833398A GB 7833398 A GB7833398 A GB 7833398A GB 2005155 A GB2005155 A GB 2005155A
Authority
GB
United Kingdom
Prior art keywords
layer
light
substrate
recording medium
optical 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.)
Withdrawn
Application number
GB7833398A
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 GB2005155A publication Critical patent/GB2005155A/en
Withdrawn legal-status Critical Current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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G11B7/2585—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers based on aluminium
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/253—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates
    • G11B7/2533—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of substrates comprising resins

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)

Abstract

A medium to record light with a spatial modulation pattern comprises a plastic substrate layer, a thin, smooth, glossy, hard inert coating layer free of macroscopic and microscopic imperfections overlying the substrate layer, a light reflecting layer thereover and a top light absorbtive layer. Accordingly a coating of acrylic latex, epoxy paint without pigment, dichromated gelatin, or various synthetic varnishes, underlies the reflecting layer and is found to improve the effective quality of the substrate surface. Various organic dyes may comprise the light absorptive layer. A thermal barrier layer of silica may be applied between the surface- improving layer and the reflective layer.
GB7833398A 1977-09-28 1978-08-15 Improved optical recording medium Withdrawn GB2005155A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83742077A 1977-09-28 1977-09-28

Publications (1)

Publication Number Publication Date
GB2005155A true GB2005155A (en) 1979-04-19

Family

ID=25274397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7833398A Withdrawn GB2005155A (en) 1977-09-28 1978-08-15 Improved optical recording medium

Country Status (9)

Country Link
JP (1) JPS5454634A (en)
CA (1) CA1135413A (en)
DE (1) DE2837601A1 (en)
FR (1) FR2404887A1 (en)
GB (1) GB2005155A (en)
IT (1) IT1099139B (en)
NL (1) NL7808820A (en)
PL (1) PL114262B1 (en)
SU (1) SU820675A3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019329A1 (en) * 1979-05-18 1980-11-26 Koninklijke Philips Electronics N.V. Information recording element
EP0084729A1 (en) * 1981-12-22 1983-08-03 Fujitsu Limited Recording elements
GB2156090A (en) * 1984-03-06 1985-10-02 Ricoh Kk Optical information recording medium
US4547444A (en) * 1983-12-23 1985-10-15 Minnesota Mining And Manufacturing Company Recording element for optical data storage
US4551413A (en) * 1982-12-31 1985-11-05 Minnesota Mining And Manufacturing Company Recording element for optical data storage
US4553153A (en) * 1983-10-21 1985-11-12 Eastman Kodak Company Planarizing layer for semiconductor substrates such as solid state imagers
US4619890A (en) * 1985-08-19 1986-10-28 Eastman Kodak Company Optical recording element having a polymerized crosslinked homopolymer smoothing layer
US4675227A (en) * 1978-05-24 1987-06-23 U.S. Philips Corporation Information recording element
EP1017045A1 (en) * 1997-04-08 2000-07-05 Sony Corporation Optical recording medium

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7809159A (en) * 1977-09-29 1979-04-02 Philips Nv INFORMATION REGISTRATION ELEMENT WITH DYE CONTAINING AUXILIARY LAYER.
US4189735A (en) * 1978-02-24 1980-02-19 Rca Corporation Record playback apparatus and information record therefor
FR2435779A1 (en) * 1978-09-08 1980-04-04 Matsushita Electric Ind Co Ltd Optical recording part for laser recording and read=out system - has heat-insulating film between plastics substrate and recording layer to increase speed
JPS5538655A (en) * 1978-09-08 1980-03-18 Sumitomo Chem Co Ltd Optical signal recording and reproducing member
US4373004A (en) * 1979-08-14 1983-02-08 Nippon Telegraph & Telephone Public Corporation Laser beam-recording media and method for manufacturing the same
US4275100A (en) * 1980-01-04 1981-06-23 Rca Corporation Video disc processing
JPS57141033A (en) * 1981-02-23 1982-09-01 Asahi Chem Ind Co Ltd Information recording materials
DE3482147D1 (en) * 1983-06-27 1990-06-07 Optical Disc Corp OPTICAL THIN FILM RECORDING MEDIUM WITH HIGH CONTRAST.
US4618514A (en) * 1985-12-20 1986-10-21 Rca Corporation Alignment layer for liquid crystal display

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2209159A1 (en) * 1972-09-25 1974-06-28 Western Electric Co Data processing bismuth plastics tape - precipitating plastics film within plasma discharge
JPS5932319B2 (en) * 1974-03-22 1984-08-08 富士写真フイルム株式会社 recording material
US3911444A (en) * 1974-04-04 1975-10-07 Bell Telephone Labor Inc Metal film recording media for laser writing
JPS5114263A (en) * 1974-07-26 1976-02-04 Hitachi Ltd Setsugono roeiboshiho
JPS5118555A (en) * 1974-08-07 1976-02-14 Ricoh Kk Karaatonaa oyobi sonoseizoho
AU511031B2 (en) * 1976-03-19 1980-07-24 Rca Corp. Ablative optical recording medium

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675227A (en) * 1978-05-24 1987-06-23 U.S. Philips Corporation Information recording element
EP0019329A1 (en) * 1979-05-18 1980-11-26 Koninklijke Philips Electronics N.V. Information recording element
EP0084729A1 (en) * 1981-12-22 1983-08-03 Fujitsu Limited Recording elements
US4551413A (en) * 1982-12-31 1985-11-05 Minnesota Mining And Manufacturing Company Recording element for optical data storage
US4553153A (en) * 1983-10-21 1985-11-12 Eastman Kodak Company Planarizing layer for semiconductor substrates such as solid state imagers
US4547444A (en) * 1983-12-23 1985-10-15 Minnesota Mining And Manufacturing Company Recording element for optical data storage
GB2156090A (en) * 1984-03-06 1985-10-02 Ricoh Kk Optical information recording medium
US4619890A (en) * 1985-08-19 1986-10-28 Eastman Kodak Company Optical recording element having a polymerized crosslinked homopolymer smoothing layer
EP1017045A1 (en) * 1997-04-08 2000-07-05 Sony Corporation Optical recording medium
EP1017045A4 (en) * 1997-04-08 2000-07-19 Sony Corp Optical recording medium
US6319581B1 (en) 1997-04-08 2001-11-20 Sony Corporation Optical recording medium

Also Published As

Publication number Publication date
FR2404887A1 (en) 1979-04-27
PL114262B1 (en) 1981-01-31
NL7808820A (en) 1979-03-30
DE2837601A1 (en) 1979-04-05
IT1099139B (en) 1985-09-18
JPS5454634A (en) 1979-05-01
IT7827996A0 (en) 1978-09-22
CA1135413A (en) 1982-11-09
SU820675A3 (en) 1981-04-07
PL209912A1 (en) 1979-07-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)