NL8801327A - Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode. - Google Patents

Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode. Download PDF

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Publication number
NL8801327A
NL8801327A NL8801327A NL8801327A NL8801327A NL 8801327 A NL8801327 A NL 8801327A NL 8801327 A NL8801327 A NL 8801327A NL 8801327 A NL8801327 A NL 8801327A NL 8801327 A NL8801327 A NL 8801327A
Authority
NL
Netherlands
Prior art keywords
layer
information
record carrier
scanning
optical
Prior art date
Application number
NL8801327A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to NL8801327A priority Critical patent/NL8801327A/nl
Priority to US07/333,149 priority patent/US5153873A/en
Priority to ES89201275T priority patent/ES2069573T3/es
Priority to JP1128603A priority patent/JP2732297B2/ja
Priority to DE68921244T priority patent/DE68921244T2/de
Priority to EP89201275A priority patent/EP0343727B1/en
Priority to AT89201275T priority patent/ATE118918T1/de
Priority to CA000600345A priority patent/CA1322791C/en
Priority to KR1019890007039A priority patent/KR0163023B1/ko
Priority to AU35084/89A priority patent/AU622449B2/en
Priority to YU107489A priority patent/YU47316B/sh
Priority to CN89104994A priority patent/CN1038963C/zh
Priority to BR898902391A priority patent/BR8902391A/pt
Publication of NL8801327A publication Critical patent/NL8801327A/nl
Priority to HK62396A priority patent/HK62396A/xx

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10582—Record carriers characterised by the selection of the material or by the structure or form
    • G11B11/10586—Record carriers characterised by the selection of the material or by the structure or form characterised by the selection of the material
    • G11B11/10589—Details
    • G11B11/10593—Details for improving read-out properties, e.g. polarisation of light
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10515—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G11B11/10578—Servo format, e.g. prepits, guide tracks, pilot signals
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • 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
    • 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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Light Guides In General And Applications Therefor (AREA)
NL8801327A 1988-05-24 1988-05-24 Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode. NL8801327A (nl)

Priority Applications (14)

Application Number Priority Date Filing Date Title
NL8801327A NL8801327A (nl) 1988-05-24 1988-05-24 Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode.
US07/333,149 US5153873A (en) 1988-05-24 1989-04-03 Optical record carrier and method and apparatus for increasing the resolution of information recorded thereon and read therefrom
ES89201275T ES2069573T3 (es) 1988-05-24 1989-05-22 Metodo de explorar opticamente un plano de una informacion y soporte de grabacion optico y aparatos de exploracion adecuados para uso en dicho metodo.
JP1128603A JP2732297B2 (ja) 1988-05-24 1989-05-22 情報面を光学的に走査する方法及び記録担体並びに当該方法の使用に適した走査装置
DE68921244T DE68921244T2 (de) 1988-05-24 1989-05-22 Verfahren zum optischen Abtasten einer Informationsfläche und optische Aufzeichnungsträger und Abtasteinrichtungen, die sich zur Anwendung des Verfahrens eignen.
EP89201275A EP0343727B1 (en) 1988-05-24 1989-05-22 Method of optically scanning an information plane and optical record carriers and scanning apparatuses suitable for use of said method
AT89201275T ATE118918T1 (de) 1988-05-24 1989-05-22 Verfahren zum optischen abtasten einer informationsfläche und optische aufzeichnungsträger und abtasteinrichtungen, die sich zur anwendung des verfahrens eignen.
CA000600345A CA1322791C (en) 1988-05-24 1989-05-23 Method of optically scanning an information plane and optical record carriers and scanning apparatuses suitable for use of said method
KR1019890007039A KR0163023B1 (ko) 1988-05-24 1989-05-24 정보 면 광학 주사 방법 및 장치와 이 주사 방법에 의해 주사되는 광학 기록 캐리어
AU35084/89A AU622449B2 (en) 1988-05-24 1989-05-24 Method of optically scanning an information plane and optical record carriers and scanning apparatuses suitable for use of said method
YU107489A YU47316B (sh) 1988-05-24 1989-05-24 Postupak za optičko skeniranje informacione ravni i nosači optičkog zapisa kao i aparati za skeniranje pogodni za upotrebu navedenog postupka
CN89104994A CN1038963C (zh) 1988-05-24 1989-05-24 利用读光束读取信息平面的方法及其装置和光记录载体
BR898902391A BR8902391A (pt) 1988-05-24 1989-05-24 Processo de varredura otica de um plano de informacao meio de gravacao otico e aparelho de varredura
HK62396A HK62396A (en) 1988-05-24 1996-04-11 Method of optically scanning an information plane and optical record carriers and scanning apparatuses suitable for use of said method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8801327 1988-05-24
NL8801327A NL8801327A (nl) 1988-05-24 1988-05-24 Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode.

Publications (1)

Publication Number Publication Date
NL8801327A true NL8801327A (nl) 1989-12-18

Family

ID=19852341

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8801327A NL8801327A (nl) 1988-05-24 1988-05-24 Methode voor het optisch aftasten van een informatievlak en optische registratiedragers en aftastinrichtingen geschikt voor toepassing van de methode.

Country Status (14)

Country Link
US (1) US5153873A (ko)
EP (1) EP0343727B1 (ko)
JP (1) JP2732297B2 (ko)
KR (1) KR0163023B1 (ko)
CN (1) CN1038963C (ko)
AT (1) ATE118918T1 (ko)
AU (1) AU622449B2 (ko)
BR (1) BR8902391A (ko)
CA (1) CA1322791C (ko)
DE (1) DE68921244T2 (ko)
ES (1) ES2069573T3 (ko)
HK (1) HK62396A (ko)
NL (1) NL8801327A (ko)
YU (1) YU47316B (ko)

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US4965784A (en) * 1988-05-31 1990-10-23 Sandia Corporation Method and apparatus for bistable optical information storage for erasable optical disks

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CN1039319A (zh) 1990-01-31
YU47316B (sh) 1995-01-31
CN1038963C (zh) 1998-07-01
HK62396A (en) 1996-04-19
JPH0296926A (ja) 1990-04-09
US5153873A (en) 1992-10-06
DE68921244T2 (de) 1995-09-07
AU622449B2 (en) 1992-04-09
EP0343727A1 (en) 1989-11-29
DE68921244D1 (de) 1995-03-30
EP0343727B1 (en) 1995-02-22
ATE118918T1 (de) 1995-03-15
KR0163023B1 (ko) 1999-01-15
YU107489A (sh) 1992-07-20
JP2732297B2 (ja) 1998-03-25
CA1322791C (en) 1993-10-05
KR890017670A (ko) 1989-12-16
BR8902391A (pt) 1990-01-16
ES2069573T3 (es) 1995-05-16
AU3508489A (en) 1989-11-30

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