KR930004963A - 광판독 시스템 - Google Patents

광판독 시스템 Download PDF

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Publication number
KR930004963A
KR930004963A KR1019920014320A KR920014320A KR930004963A KR 930004963 A KR930004963 A KR 930004963A KR 1019920014320 A KR1019920014320 A KR 1019920014320A KR 920014320 A KR920014320 A KR 920014320A KR 930004963 A KR930004963 A KR 930004963A
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KR
South Korea
Prior art keywords
magnetic
light
head
optical
read
Prior art date
Application number
KR1019920014320A
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English (en)
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KR100253716B1 (ko
Inventor
레위로 장-끌로드
메로 크리스띠앙
Original Assignee
아르레뜨 다낭제
똥송-쎄 에스 에프
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Application filed by 아르레뜨 다낭제, 똥송-쎄 에스 에프 filed Critical 아르레뜨 다낭제
Publication of KR930004963A publication Critical patent/KR930004963A/ko
Application granted granted Critical
Publication of KR100253716B1 publication Critical patent/KR100253716B1/ko

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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
    • G11B11/12—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 optical means
    • G11B11/14—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 optical means with reproducing by magnetic means
    • 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
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • G11B11/10547—Heads for reproducing using optical beam of radiation interacting with the magnetisation of an intermediate transfer element, e.g. magnetic film, included in the head
    • 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
    • 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
    • G11B7/13—Optical detectors therefor

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Head (AREA)

Abstract

내용 없음.

Description

광판독 시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명에 따른 광도파관을 갖춘 판독 헤드에 대한 도시도,
제4도는 판독 헤드의 광 활성부가 형성된 기판에 직접적으로 인접한 감광성 감지기를 갖춘 판독 헤드에 대한 도시도,
제5도는 중간의 광집속 시스템이 없이 헤드와 직접 합체된 감광성 감지기들 갖춘 판독 헤드에 대한 도시도,
제6a도는 내지 제6g도는 (비평판(non-planar)기술을 이용하는) 제1제조 방법에 따른 제조의 주요단계의 도시도.

Claims (7)

  1. 자기 매체상에 기록된 자기 정보 소자를 판독하기 위하여 판독 헤드를 포함하는 광판독 시스템에 있어서, 상기 헤드는 자기 매체의 자기 정보 소자로서 자기 회로를 변조하도록 판독될 매체의 바로 근방에 위치하는 갭 영역을 갖춘 개방 자기 회로를 포함하며, 이 갭 영역은 좁고 길게 연장되어 있으며, 상기 자기 회로는 갭 영역의 바로 근방에 위치하는 광 활성 자기층도 포함하며, 이층은 매체상에 기록된 자기 정보 소자의 함수로서 광빔을 수신 변조 할 수 있으며, 상기 자기 헤드는 광자기 층에 바로 선행하여 판독 헤드와 합체된 광 도파관을 포함하고, 이층에 의해 안내되어 광활성 층에 이르는 광선의 입사면은 갭의 일반직 연장 방향에 대해 수직인 광판독 시스템.
  2. 제1항에 있어서, 갭 영역은 자기 매체와 헤드가 상대적으로 서로 지나서 이동하는 방향에 대해 수직인 방향으로 연장되는 광판독 시스템.
  3. 제1항 또는 제2항에 있어서, 도파관은 편평하고 편평한 조명 빔을 광활성 존상에 향하게 하며(폭이 그 높이보다 휠씬 큼), 그 폭은 자기 정보 요소의 여러 평행트랙을 지니는 자기테이프의 폭을 통하여 연장되어 모든 트랙이 병렬로 판독되고, 그 높이가 기껏해야 수 마이크로미터인 광판독 시스템.
  4. 선행 항중 어느 한 항에 있어서, 변조된 빔은 판독될 자기테이프상에 기록된 평행 자기 트랙만큼 많은 판독될 요소를 포함하는 선택 감광성 어레이로 향하는 광판독 시스템.
  5. 제1항 내지 제4항중 어느 한 항에 따른 광 정보를 판독하기 위한 시스템에 있어서, 헤드는 이층에 의해 변조된 빔의 선로상에 광활성 존으로부티 수 마이크로미터 이하의 거리에 배치된 합체된 감광성 감지기들 포함하는 광 판독 시스템.
  6. 선행항중 어느 한 항에 따른 정보 요소의 광판독을 위한 시스템에 있어서, 도파관과 자기 회로를 형성하는 자기 및 비자성 충은 헤드의 단일 주표면상의 박막의 증착에 의해 형성되는 광판독 시스템.
  7. 정보 요소를 광판독하기 위한 시스템에 있어서, 상기 시스템은 광빔 특히. 헤드와 합체된 광 도과판에 의해 전달되는 광빔을 수신하고 변조하도록 설계된 광 활성부를 구비하는 판독 리드를 포함하며, 합체된 감광성 감지기는 이 층에 의해 변조된 빔의 선로상에 광활성 존으로부터 수 마이크로미터 이하의 거리에 배치된 광판독 시스템.
    ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.
KR1019920014320A 1991-08-09 1992-08-10 광 판독 시스템 KR100253716B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110177A FR2680268A1 (fr) 1991-08-09 1991-08-09 Tete de lecture magneto-optique.
FR91-10177 1991-08-09

Publications (2)

Publication Number Publication Date
KR930004963A true KR930004963A (ko) 1993-03-23
KR100253716B1 KR100253716B1 (ko) 2000-05-01

Family

ID=9416096

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920014320A KR100253716B1 (ko) 1991-08-09 1992-08-10 광 판독 시스템

Country Status (6)

Country Link
US (1) US5392181A (ko)
EP (2) EP0527670B1 (ko)
JP (1) JP3481262B2 (ko)
KR (1) KR100253716B1 (ko)
DE (1) DE69227486T2 (ko)
FR (1) FR2680268A1 (ko)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656723B1 (fr) * 1989-12-28 1995-07-21 Thomson Consumer Electronics Tete de lecture multipiste magneto-optique.
FR2701332B1 (fr) * 1993-02-09 1995-03-10 Thomson Csf Tête de lecture magnéto-optique et appareil de lecture d'enregistrements magnétiques multipistes.
CA2137062A1 (en) * 1993-12-08 1995-06-09 Takumi Shimamori Magneto-optical recording and reading-out method
US5946114A (en) * 1994-06-17 1999-08-31 Thomson-Csf Optical filtering device and application to a liquid crystal projector
FR2723243B1 (fr) * 1994-07-26 1996-09-06 Thomson Csf Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation
TW294810B (ko) * 1994-09-23 1997-01-01 Philips Electronics Nv
US6288980B1 (en) * 1996-04-23 2001-09-11 Garnetec Ltd. Magneto-optical head for information reading
RU2115962C1 (ru) * 1996-04-23 1998-07-20 Гарнетек Лтд. Магнитно-оптическая головка для считывания информации
FR2750787B1 (fr) * 1996-07-05 1998-11-13 Thomson Csf Tete magnetique matricielle d'enregistrement/lecture et procede de realisation
US6775100B1 (en) * 1997-05-05 2004-08-10 Seagate Technology Llc Laser assisted track width definition and radial control with magnetic recording
DE19846878A1 (de) * 1998-10-13 2000-04-20 Thomson Brandt Gmbh Kopfanordnung zur Multispur-Aufzeichnung mit integrierter Bandführung
WO2000028536A1 (fr) * 1998-11-09 2000-05-18 Seiko Instruments Inc. Tete optique a champ proche et procede de production associe
FR2786345B1 (fr) 1998-11-24 2001-02-09 Thomson Csf Dispositif de cryptage quantique
FR2797514B3 (fr) * 1999-08-10 2001-10-12 Thomson Csf Dispositif de lecture magneto-optique pour bandes magnetiques multipistes
FR2797710B1 (fr) 1999-08-20 2001-11-09 Thomson Csf Tete de lecture anti-abrasion
US7149173B2 (en) * 2000-10-17 2006-12-12 Thales Medium for recording optically readable data, method for making same and optical system reproducing said data
FR2824905B1 (fr) * 2001-05-15 2003-08-29 Thomson Csf Gyrometre a fibre optique
US6716723B2 (en) * 2002-06-05 2004-04-06 Intel Corporation Wafer cutting using laser marking
CN102473235A (zh) * 2009-07-09 2012-05-23 比尔凯科技新加坡有限公司 能够对标签或被适配为有待识别的物品进行识别的读取装置、相关方法及系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425023A (en) * 1980-01-31 1984-01-10 Canon Kabushiki Kaisha Beam spot scanning device
NL192546C (nl) * 1982-07-19 1997-09-02 Nippon Telegraph & Telephone Leeskop voor een met hoge dichtheid uitgevoerde magnetische registratie.
JPH0731834B2 (ja) * 1984-04-20 1995-04-10 日本電信電話株式会社 高密度磁気光学再生ヘツド
US4654837A (en) * 1985-09-06 1987-03-31 Datatape Incorporated Magneto-optic transducer with enhanced signal performance
JPH01118105A (ja) * 1987-10-30 1989-05-10 Brother Ind Ltd 薄膜光機能素子
SU1522281A1 (ru) * 1988-02-25 1989-11-15 Симферопольский государственный университет им.М.В.Фрунзе Устройство дл оптического воспроизведени информации с носител магнитной записи
JPH01271946A (ja) * 1988-04-22 1989-10-31 Sony Corp 磁気光再生ヘッド
FR2656723B1 (fr) * 1989-12-28 1995-07-21 Thomson Consumer Electronics Tete de lecture multipiste magneto-optique.

Also Published As

Publication number Publication date
EP0527670A1 (fr) 1993-02-17
EP0844604A2 (fr) 1998-05-27
JP3481262B2 (ja) 2003-12-22
FR2680268B1 (ko) 1995-04-21
KR100253716B1 (ko) 2000-05-01
DE69227486T2 (de) 1999-04-15
FR2680268A1 (fr) 1993-02-12
US5392181A (en) 1995-02-21
EP0844604A3 (fr) 2000-12-06
DE69227486D1 (de) 1998-12-10
EP0527670B1 (fr) 1998-11-04
JPH06180883A (ja) 1994-06-28

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