SG44951A1 - Magneto-optical pick-up with optical module - Google Patents

Magneto-optical pick-up with optical module

Info

Publication number
SG44951A1
SG44951A1 SG1996009956A SG1996009956A SG44951A1 SG 44951 A1 SG44951 A1 SG 44951A1 SG 1996009956 A SG1996009956 A SG 1996009956A SG 1996009956 A SG1996009956 A SG 1996009956A SG 44951 A1 SG44951 A1 SG 44951A1
Authority
SG
Singapore
Prior art keywords
optical
magneto
pick
module
optical module
Prior art date
Application number
SG1996009956A
Other languages
English (en)
Inventor
Takao Hayashi
Toru Nakamura
Akihiro Arai
Original Assignee
Matsushita Electric Ind Co 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of SG44951A1 publication Critical patent/SG44951A1/en

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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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
    • 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
    • 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
SG1996009956A 1995-06-02 1996-06-03 Magneto-optical pick-up with optical module SG44951A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13646295A JP3322075B2 (ja) 1995-06-02 1995-06-02 光磁気ピックアップ

Publications (1)

Publication Number Publication Date
SG44951A1 true SG44951A1 (en) 1997-12-19

Family

ID=15175685

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996009956A SG44951A1 (en) 1995-06-02 1996-06-03 Magneto-optical pick-up with optical module

Country Status (6)

Country Link
US (1) US5790504A (ko)
JP (1) JP3322075B2 (ko)
KR (1) KR970002961A (ko)
CN (1) CN1080431C (ko)
SG (1) SG44951A1 (ko)
TW (1) TW303464B (ko)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5852591A (en) * 1994-04-23 1998-12-22 Sony Corporation Magneto-optical recording medium and head unit for a magneto-optical recording medium
JPH09320098A (ja) * 1996-05-27 1997-12-12 Sony Corp 光ピックアップ装置および複合光学装置
JPH1064078A (ja) * 1996-08-20 1998-03-06 Mitsubishi Electric Corp 光ヘッド
US6556533B1 (en) * 1996-10-01 2003-04-29 Matsushita Electric Industrial Co., Ltd. Optical pickup device
JPH10123375A (ja) * 1996-10-18 1998-05-15 Ando Electric Co Ltd 光モジュール用パッケージ
JP3601219B2 (ja) * 1996-11-13 2004-12-15 松下電器産業株式会社 光ピックアップ用の平行プリズム
JP3638417B2 (ja) * 1997-10-24 2005-04-13 富士通株式会社 光ピックアップ
CN1211788C (zh) * 1998-07-09 2005-07-20 索尼公司 集成光学元件、光学传感器及光盘装置
JP3607836B2 (ja) * 1999-03-31 2005-01-05 シャープ株式会社 光ピックアップ装置
JP2001034999A (ja) 1999-05-14 2001-02-09 Fujitsu Ltd 光情報記憶装置および光学素子
JP2001126306A (ja) 1999-10-29 2001-05-11 Olympus Optical Co Ltd 光磁気ピックアップ
EP1231603A4 (en) 1999-11-09 2007-07-11 Matsushita Electric Ind Co Ltd PHOTOELECTRONIC DEVICE
JP2001273670A (ja) * 2000-01-19 2001-10-05 Olympus Optical Co Ltd 光ピックアップ装置
JP2001351266A (ja) * 2000-04-06 2001-12-21 Fujitsu Ltd 光ピックアップ及び光記憶装置
US6717893B1 (en) * 2000-10-04 2004-04-06 Dphi Acquisitions, Inc. Laser thermal management system
JP2002335032A (ja) * 2001-05-08 2002-11-22 Sony Corp 光学装置およびその製造方法
EP1304586A3 (en) * 2001-10-19 2004-01-07 Matsushita Electric Industrial Co., Ltd. Optical element, method of manufacturing the optical element and optical head using the optical element
US7006426B2 (en) * 2001-12-18 2006-02-28 Stmicroelectronics, Inc. Integrated optical unit for use with miniature optical discs
EP1553570B1 (en) * 2002-10-10 2008-10-08 Matsushita Electric Industrial Co., Ltd. Optical head and optical disk unit
KR20040079555A (ko) * 2003-03-07 2004-09-16 삼성전자주식회사 광헤드 및 그 광헤드의 광경로 조정방법
KR20050013440A (ko) * 2003-07-28 2005-02-04 엘지전자 주식회사 광디스크 픽업의 직접 베이스 광학계
US7573800B2 (en) * 2004-01-29 2009-08-11 Panasonic Corporation Optical pickup and optical disk apparatus
JP2006012386A (ja) * 2004-05-25 2006-01-12 Sony Corp 集積型発光受光素子、光情報媒体用光ピックアップ装置および光ディスク装置
JP4944026B2 (ja) * 2005-04-14 2012-05-30 パナソニック株式会社 光ヘッド装置及び光情報処理装置
JP4275650B2 (ja) * 2005-05-13 2009-06-10 シャープ株式会社 光集積ユニットおよびそれを備えた光ピックアップ装置
JP2007066453A (ja) * 2005-08-31 2007-03-15 Mitsumi Electric Co Ltd 光ピックアップ装置
CN101598774B (zh) * 2009-07-13 2012-06-27 哈尔滨工业大学 金属化封装的磁光传感器
US11209652B2 (en) 2016-12-30 2021-12-28 Vuzix Corporation Light guide with polarization separator for dual images
WO2018125576A1 (en) 2016-12-30 2018-07-05 Vuzix Corporation Light guide with beam separator for dual images

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3355607B2 (ja) * 1992-01-24 2002-12-09 ソニー株式会社 光磁気記録用偏光光学系
JPH06111334A (ja) * 1992-09-24 1994-04-22 Sony Corp 円盤状記録媒体用の記録及び／又は再生装置、光検出器及び光ヘッド
JPH06195728A (ja) * 1992-12-24 1994-07-15 Matsushita Electric Ind Co Ltd 光学ヘッド
US5453961A (en) * 1993-01-15 1995-09-26 Eastman Kodak Company Pick-up device for optical disk readout using waveguide gratings
JPH06309692A (ja) * 1993-04-22 1994-11-04 Canon Inc 光学的情報記録再生装置
JP3541893B2 (ja) * 1993-08-06 2004-07-14 ソニー株式会社 光磁気記録媒体再生装置

Also Published As

Publication number Publication date
KR970002961A (ko) 1997-01-28
JPH08329544A (ja) 1996-12-13
JP3322075B2 (ja) 2002-09-09
CN1080431C (zh) 2002-03-06
TW303464B (ko) 1997-04-21
CN1152772A (zh) 1997-06-25
US5790504A (en) 1998-08-04

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