DE3434586A1 - Verfahren und vorrichtung zur informationsverarbeitung - Google Patents

Verfahren und vorrichtung zur informationsverarbeitung

Info

Publication number
DE3434586A1
DE3434586A1 DE19843434586 DE3434586A DE3434586A1 DE 3434586 A1 DE3434586 A1 DE 3434586A1 DE 19843434586 DE19843434586 DE 19843434586 DE 3434586 A DE3434586 A DE 3434586A DE 3434586 A1 DE3434586 A1 DE 3434586A1
Authority
DE
Germany
Prior art keywords
light
recording medium
deflecting
zero order
deflector
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
DE19843434586
Other languages
German (de)
English (en)
Other versions
DE3434586C2 (enExample
Inventor
Kazuya Yokohama Kanagawa Matsumoto
Mamoru Tokio/Tokyo Miyawaki
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP58174479A external-priority patent/JPH0677327B2/ja
Priority claimed from JP58175376A external-priority patent/JPS6069840A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE3434586A1 publication Critical patent/DE3434586A1/de
Application granted granted Critical
Publication of DE3434586C2 publication Critical patent/DE3434586C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • 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
    • G11B11/10532—Heads
    • 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
    • G11B7/0908—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 focusing only
    • G11B7/0912—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 focusing only by push-pull method
    • 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
    • G11B7/0908—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 focusing only
    • G11B7/0916—Foucault or knife-edge methods
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
    • G11B7/1245—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides the waveguides including means for electro-optical or acousto-optical deflection
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE19843434586 1983-09-21 1984-09-20 Verfahren und vorrichtung zur informationsverarbeitung Granted DE3434586A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP58174479A JPH0677327B2 (ja) 1983-09-21 1983-09-21 情報記録又は再生装置
JP58175376A JPS6069840A (ja) 1983-09-22 1983-09-22 情報記録又は再生装置

Publications (2)

Publication Number Publication Date
DE3434586A1 true DE3434586A1 (de) 1985-04-11
DE3434586C2 DE3434586C2 (enExample) 1993-05-19

Family

ID=26496071

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843434586 Granted DE3434586A1 (de) 1983-09-21 1984-09-20 Verfahren und vorrichtung zur informationsverarbeitung

Country Status (1)

Country Link
DE (1) DE3434586A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144058A3 (en) * 1983-11-28 1986-10-08 Hitachi, Ltd. Apparatus and record carrier for optically writing information
NL8802052A (nl) * 1987-08-26 1989-03-16 Sony Corp Optische opname- en/of weergave-inrichting.
EP0255403A3 (en) * 1986-07-31 1989-05-31 Brother Kogyo Kabushiki Kaisha Tracking servo device for optical storage disk
DE3916655A1 (de) * 1988-10-27 1990-05-03 Pioneer Electronic Corp Kontrollgeraet fuer die optische achse
DE4227593A1 (de) * 1991-08-20 1993-02-25 Gold Star Co Optische abtastvorrichtung fuer optische plattenspieler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851951A (en) * 1974-01-16 1974-12-03 Isomet Corp High resolution laser beam recorder with self-focusing acousto-optic scanner
US3877784A (en) * 1973-09-20 1975-04-15 Ibm Beam address optical storage head
DE3227654A1 (de) * 1981-07-24 1983-02-17 Sony Corp., Tokyo Optische informationsaufzeichnungs-/wiedergabe-einrichtung
US4394060A (en) * 1981-04-15 1983-07-19 Canon Kabushiki Kaisha Light beam scanning system with saw transducer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3877784A (en) * 1973-09-20 1975-04-15 Ibm Beam address optical storage head
US3851951A (en) * 1974-01-16 1974-12-03 Isomet Corp High resolution laser beam recorder with self-focusing acousto-optic scanner
US4394060A (en) * 1981-04-15 1983-07-19 Canon Kabushiki Kaisha Light beam scanning system with saw transducer
DE3227654A1 (de) * 1981-07-24 1983-02-17 Sony Corp., Tokyo Optische informationsaufzeichnungs-/wiedergabe-einrichtung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144058A3 (en) * 1983-11-28 1986-10-08 Hitachi, Ltd. Apparatus and record carrier for optically writing information
EP0255403A3 (en) * 1986-07-31 1989-05-31 Brother Kogyo Kabushiki Kaisha Tracking servo device for optical storage disk
NL8802052A (nl) * 1987-08-26 1989-03-16 Sony Corp Optische opname- en/of weergave-inrichting.
DE3916655A1 (de) * 1988-10-27 1990-05-03 Pioneer Electronic Corp Kontrollgeraet fuer die optische achse
US5109376A (en) * 1988-10-27 1992-04-28 Pioneer Electronic Corporation Optical axis monitoring device
DE4227593A1 (de) * 1991-08-20 1993-02-25 Gold Star Co Optische abtastvorrichtung fuer optische plattenspieler

Also Published As

Publication number Publication date
DE3434586C2 (enExample) 1993-05-19

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee