KR870010506A - 광 자기 기록 장치 - Google Patents

광 자기 기록 장치 Download PDF

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Publication number
KR870010506A
KR870010506A KR870003797A KR870003797A KR870010506A KR 870010506 A KR870010506 A KR 870010506A KR 870003797 A KR870003797 A KR 870003797A KR 870003797 A KR870003797 A KR 870003797A KR 870010506 A KR870010506 A KR 870010506A
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KR
South Korea
Prior art keywords
magnetic field
magneto
recording medium
optical recording
laser beam
Prior art date
Application number
KR870003797A
Other languages
English (en)
Other versions
KR950001882B1 (ko
Inventor
히데요시 호리마이
요시오 아오끼
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
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 오오가 노리오, 소니 가부시끼 가이샤 filed Critical 오오가 노리오
Publication of KR870010506A publication Critical patent/KR870010506A/ko
Application granted granted Critical
Publication of KR950001882B1 publication Critical patent/KR950001882B1/ko

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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
    • G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar 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
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Holo Graphy (AREA)
  • Liquid Crystal (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

내용 없음

Description

광 자기 기록 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 의한 광 자기 기록장치의 일예의 구성도
제2도는 광학계의 대물렌즈의 조정 수단의 1예의 저면도.
제3도는 제2도의 A-A선상의 단면도

Claims (1)

  1. 레이저 광을 광 자기 기록 매체에 포커싱 시키는 포커싱 조정 기능을 갖는 조정 수단과,
    상기 광 자기 기록 매체를 끼워서 이 광 자기 기록매체에 대한 상기 레이저 광의 조사측과는 반대측에 배치된 펄스 자계 발생 수단을 구비하여,
    상기 조정 수단은 직류자계를 발생하는 자석과, 이 자석을 포함하는 자기 회로내에 배설되어 광학계의 대물렌즈가 기계적으로 연결된 가동 코일을 가지며, 이 가동 코일의 이동에 따라서, 상기한 대물렌즈의 상기 광 자기 기록 매체에 대한 위치 조정을 행하고,
    최소한 상기 조정수단으로부터의 상기 광 자기 기록매체와 직교하는 방향의 누설 직류 자계와 상기 펄스 자계 발생수단으로부터의 펄스 자계에 의해 상기 광 자기 기록 매에 대한 소거 및 기록을 행하는 것을 특징으로 하는 광 자기 기록장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019870003797A 1986-04-22 1987-04-21 광 자기 기록 장치 KR950001882B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61093087A JP2609228B2 (ja) 1986-04-22 1986-04-22 光磁気記録装置
JP93087 1986-04-22

Publications (2)

Publication Number Publication Date
KR870010506A true KR870010506A (ko) 1987-11-30
KR950001882B1 KR950001882B1 (ko) 1995-03-04

Family

ID=14072742

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870003797A KR950001882B1 (ko) 1986-04-22 1987-04-21 광 자기 기록 장치

Country Status (8)

Country Link
US (1) US4959820A (ko)
EP (1) EP0242837B1 (ko)
JP (1) JP2609228B2 (ko)
KR (1) KR950001882B1 (ko)
AT (1) ATE65860T1 (ko)
AU (1) AU586924B2 (ko)
CA (1) CA1328689C (ko)
DE (1) DE3771763D1 (ko)

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US5101385A (en) * 1988-03-14 1992-03-31 Bernoulli Optical Systems Company Magneto-optical information storage system for flexible media having maximum overwrite efficiency
DE3811375A1 (de) * 1988-04-05 1989-10-19 Siemens Ag Datenspeichersystem
EP0336687B1 (en) * 1988-04-06 1995-02-15 Mitsubishi Denki Kabushiki Kaisha Recording and reproducing optical disk device
US5014254A (en) * 1988-05-09 1991-05-07 U.S. Philips Corporation Magneto-optical recording method and magneto-optical recording apparatus
NL8902615A (nl) * 1988-11-15 1990-06-01 Seiko Epson Corp Optisch registratiestelsel.
JPH02265059A (ja) * 1989-04-06 1990-10-29 Ricoh Co Ltd 光磁気記録装置
JPH02308403A (ja) * 1989-05-23 1990-12-21 Sony Corp 光磁気デイスク装置
US5172364A (en) * 1989-08-01 1992-12-15 Mitsubishi Denki Kabushiki Kaisha Magneto-optic recording apparatus with controlled magnetic field generation
US5150338A (en) * 1989-08-10 1992-09-22 Hewlett-Packard Company Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider
US5197049A (en) * 1989-08-11 1993-03-23 Apple Computer, Inc. Head and media for optical data storage
JPH03113757A (ja) * 1989-09-22 1991-05-15 Pioneer Electron Corp 光磁気ディスクプレーヤ
JPH03113758A (ja) * 1989-09-22 1991-05-15 Pioneer Electron Corp 光磁気ディスクプレーヤ
US5124961A (en) * 1989-12-28 1992-06-23 Fuji Xerox Co., Ltd. Floating head for use with a recording apparatus of magneto-optical memory device
US5278809A (en) * 1990-01-17 1994-01-11 Olympus Optical Co., Ltd. Photomagnetic recording apparatus recording with alternating magnetic field and D.C. magnetic field
US5235591A (en) * 1990-01-19 1993-08-10 Hitachi, Ltd. Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium
EP0439323B1 (en) * 1990-01-23 1996-04-17 Canon Kabushiki Kaisha Magneto-optical recording apparatus
US5202863A (en) * 1990-09-11 1993-04-13 Matsushita Electric Industrial Co., Ltd. Magneto-optical disk unit compatible with different two types of magneto-optical disks and a magnetic-field generator suitable thereof
JP3065404B2 (ja) * 1991-11-18 2000-07-17 シャープ株式会社 外部磁界発生装置
JP3139723B2 (ja) * 1992-05-15 2001-03-05 キヤノン株式会社 光磁気記録装置
US5477367A (en) * 1992-12-04 1995-12-19 U.S. Philips Corporation Optical transmission system
US5636187A (en) * 1992-12-11 1997-06-03 Canon Kabushiki Kaisha Magnetooptical recording apparatus and magnetooptical recording method for canceling leakage magnetic fields associated with a recording medium and devices ancillary to the recording medium
JPH08235661A (ja) * 1995-02-24 1996-09-13 Pioneer Electron Corp 光磁気記録装置に用いられる光ピックアップ装置
JP3070516B2 (ja) * 1997-04-28 2000-07-31 日本電気株式会社 光ディスク装置
JP2000048374A (ja) * 1998-07-30 2000-02-18 Matsushita Electric Ind Co Ltd ディスク記録再生装置
US6865743B2 (en) * 1999-02-24 2005-03-08 Matsushita Electric Industrial Co., Ltd. Optical head and method of manufacturing the same
US6807025B1 (en) * 2001-12-21 2004-10-19 Maxtor Corporation Magnetic recording process
US7473656B2 (en) * 2003-10-23 2009-01-06 International Business Machines Corporation Method for fast and local anneal of anti-ferromagnetic (AF) exchange-biased magnetic stacks
KR20100000323A (ko) * 2008-06-24 2010-01-06 삼성전자주식회사 서보 마스터 및 이를 이용한 자기 전사 방법

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JPS5794906A (en) * 1980-12-05 1982-06-12 Ricoh Co Ltd Optical magnetic recorder
JPS57162137A (en) * 1981-03-28 1982-10-05 Kokusai Denshin Denwa Co Ltd <Kdd> Photomagnetic recording and reproducing system
JPS59119507A (ja) * 1982-12-27 1984-07-10 Fujitsu Ltd 光磁気記録装置
US4660190A (en) * 1983-01-25 1987-04-21 Sharp Kabushiki Kaisha Optical focus position control in optical disc apparatus
JPS59148159A (ja) * 1983-02-15 1984-08-24 Canon Inc 光ピツクアツプ装置
JPS59172175A (ja) * 1983-03-22 1984-09-28 Ricoh Co Ltd 光磁気記録再生装置
JPH065585B2 (ja) * 1984-02-15 1994-01-19 株式会社日立製作所 光磁気記憶装置
JPS60214438A (ja) * 1984-04-11 1985-10-26 Seiko Epson Corp 光磁気ヘツド
JPS60214439A (ja) * 1984-04-11 1985-10-26 Seiko Epson Corp 光磁気ヘツド
JPS6196540A (ja) * 1984-10-18 1986-05-15 Seiko Epson Corp 光磁気記録再生装置
JPH06105507B2 (ja) * 1984-10-26 1994-12-21 日本電気株式会社 光磁気記録再生消去装置
JPH0721894B2 (ja) * 1985-02-19 1995-03-08 日本電気株式会社 光磁気記録方法
JP2533847B2 (ja) * 1985-10-17 1996-09-11 オリンパス光学工業株式会社 光磁気記録再生装置
KR900006183B1 (ko) * 1986-03-04 1990-08-25 상요 덴기 가부시기가이샤 광학식 픽업 장치

Also Published As

Publication number Publication date
KR950001882B1 (ko) 1995-03-04
EP0242837B1 (en) 1991-07-31
DE3771763D1 (de) 1991-09-05
AU586924B2 (en) 1989-07-27
EP0242837A1 (en) 1987-10-28
CA1328689C (en) 1994-04-19
ATE65860T1 (de) 1991-08-15
US4959820A (en) 1990-09-25
AU7180887A (en) 1987-10-29
JPS62248152A (ja) 1987-10-29
JP2609228B2 (ja) 1997-05-14

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