TW430791B - Optical head and optical information recording and reproducing device using the head - Google Patents

Optical head and optical information recording and reproducing device using the head

Info

Publication number
TW430791B
TW430791B TW088107923A TW88107923A TW430791B TW 430791 B TW430791 B TW 430791B TW 088107923 A TW088107923 A TW 088107923A TW 88107923 A TW88107923 A TW 88107923A TW 430791 B TW430791 B TW 430791B
Authority
TW
Taiwan
Prior art keywords
layer
substrate
head
optical
information recording
Prior art date
Application number
TW088107923A
Other languages
English (en)
Inventor
Takeshi Nakao
Shigeru Nakamura
Toshiaki Tanaka
Takeshi Shimano
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of TW430791B publication Critical patent/TW430791B/zh

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
    • G11B7/12—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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • 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
    • G11B11/1058—Flying 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • 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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Integrated Circuits (AREA)
TW088107923A 1998-05-19 1999-05-15 Optical head and optical information recording and reproducing device using the head TW430791B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13676698A JP3426962B2 (ja) 1998-05-19 1998-05-19 光ヘッドおよびそれを用いた光学的情報記録再生装置

Publications (1)

Publication Number Publication Date
TW430791B true TW430791B (en) 2001-04-21

Family

ID=15183020

Family Applications (1)

Application Number Title Priority Date Filing Date
TW088107923A TW430791B (en) 1998-05-19 1999-05-15 Optical head and optical information recording and reproducing device using the head

Country Status (5)

Country Link
US (1) US6272097B1 (zh)
JP (1) JP3426962B2 (zh)
KR (1) KR100329864B1 (zh)
CN (1) CN1153172C (zh)
TW (1) TW430791B (zh)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW480479B (en) * 1999-02-25 2002-03-21 Hitachi Ltd Optical information processor
JP2001043544A (ja) * 1999-07-28 2001-02-16 Nec Corp 光ヘッド装置
US6351443B1 (en) * 1999-11-04 2002-02-26 Industrial Technology Research Institute Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head
JP2001195770A (ja) * 2000-01-14 2001-07-19 Sharp Corp 光ピックアップ
KR100657252B1 (ko) * 2000-01-20 2006-12-14 삼성전자주식회사 근접장 기록재생용 광헤드 및 그 제조방법
JP4019615B2 (ja) 2000-03-10 2007-12-12 富士ゼロックス株式会社 光磁気素子、光磁気ヘッドおよび磁気ディスク装置
US6633377B1 (en) * 2000-04-20 2003-10-14 Image Processing Systems Inc. Dark view inspection system for transparent media
JP2001319365A (ja) * 2000-05-10 2001-11-16 Fuji Xerox Co Ltd 浮上記録ヘッド、ディスク装置、および浮上記録ヘッドの製造方法
JP3743359B2 (ja) * 2001-11-30 2006-02-08 松下電器産業株式会社 光ピックアップ装置
KR20030058750A (ko) * 2001-12-31 2003-07-07 엘지전자 주식회사 고밀도 광기록재생방법, 그 장치
JP4613009B2 (ja) 2002-01-07 2011-01-12 シーゲイト テクノロジー エルエルシー データ記憶媒体上に情報を記録する書き込みヘッド及び方法
JP2003317305A (ja) * 2002-04-15 2003-11-07 Sony Corp 光ピックアップ装置および光ディスク装置
KR101034055B1 (ko) 2003-07-18 2011-05-12 엘지이노텍 주식회사 발광 다이오드 및 그 제조방법
KR100821359B1 (ko) * 2006-09-14 2008-04-11 주식회사 와이텔포토닉스 광 조향 센서장치 및 이를 이용하는 광모듈
JP5515703B2 (ja) * 2009-09-18 2014-06-11 ソニー株式会社 熱アシスト磁気ヘッド及び情報記録装置
US8065787B2 (en) * 2010-03-17 2011-11-29 Headway Technologies Method of manufacturing a thermally assisted magnetic head
US8854930B1 (en) 2013-08-02 2014-10-07 HGST Netherlands B.V. Slider embedded photodetector for optical power monitoring in heat assisted magnetic recording
US20210036265A1 (en) * 2019-07-30 2021-02-04 Apple Inc. Electronic Device Having Display With Internal Light Reflection Suppression

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6258432A (ja) 1985-09-06 1987-03-14 Olympus Optical Co Ltd 集積型光ピツクアツプヘツド
JPS6446242A (en) 1987-08-12 1989-02-20 Seiko Epson Corp Optical pickup
US4993035A (en) * 1989-04-03 1991-02-12 Boris Laikhtman High power semiconductor laser using optical integrated circuit
JP2901768B2 (ja) 1991-02-08 1999-06-07 オリンパス光学工業株式会社 光ピックアップ
JP2718326B2 (ja) * 1992-06-26 1998-02-25 松下電器産業株式会社 光ピックアップ
DE4404635C2 (de) * 1993-02-17 1998-06-18 Hitachi Ltd Schwimmender optischer Abtastkopf, der integral mit einer Lichtquelle und einem Photodetektor ausgebildet ist, und optisches Plattengerät mit einem solchen
JP3350789B2 (ja) * 1993-02-24 2002-11-25 株式会社日立製作所 光ヘッドおよび光ディスク装置
KR0147589B1 (ko) * 1994-05-31 1998-10-15 김광호 수직공진기 면발광 레이저 다이오드를 이용한 광픽엎
EP0955681A3 (en) * 1994-09-28 2000-11-29 Nippon Telegraph And Telephone Corporation Optical semiconductor device and method of fabricating the same
KR100318159B1 (ko) 1995-03-08 2002-04-22 가나이 쓰도무 적층형근접장광헤드및광정보기록재생장치
KR0170675B1 (ko) * 1995-06-30 1999-04-15 김광호 수직공진기 면발광 레이저 다이오드를 이용한 광픽엎
KR100189895B1 (ko) * 1995-12-30 1999-06-01 윤종용 모니터용 광검출기 일체형 반도체 레이저장치 및 이를 광원으로 채용한 광픽업장치
JPH10222861A (ja) * 1997-02-05 1998-08-21 Hitachi Ltd 光情報処理装置およびこれに適した半導体発光装置

Also Published As

Publication number Publication date
US6272097B1 (en) 2001-08-07
CN1236142A (zh) 1999-11-24
KR19990088330A (ko) 1999-12-27
JPH11328717A (ja) 1999-11-30
CN1153172C (zh) 2004-06-09
JP3426962B2 (ja) 2003-07-14
KR100329864B1 (ko) 2002-03-22

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Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees