NL1013806A1 - Optische kop, en optische opname- en/of weergeefinrichting. - Google Patents

Optische kop, en optische opname- en/of weergeefinrichting.

Info

Publication number
NL1013806A1
NL1013806A1 NL1013806A NL1013806A NL1013806A1 NL 1013806 A1 NL1013806 A1 NL 1013806A1 NL 1013806 A NL1013806 A NL 1013806A NL 1013806 A NL1013806 A NL 1013806A NL 1013806 A1 NL1013806 A1 NL 1013806A1
Authority
NL
Netherlands
Prior art keywords
optical
reproducing device
optical recording
optical head
head
Prior art date
Application number
NL1013806A
Other languages
English (en)
Other versions
NL1013806C2 (nl
Inventor
Kimihiro Saito
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of NL1013806A1 publication Critical patent/NL1013806A1/nl
Application granted granted Critical
Publication of NL1013806C2 publication Critical patent/NL1013806C2/nl

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
    • G11B11/10532—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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective 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
    • G11B7/135—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
    • G11B7/12—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
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • 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
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
NL1013806A 1998-12-09 1999-12-09 Optische kop, en optische opname- en/of weergeefinrichting. NL1013806C2 (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35053998A JP4140104B2 (ja) 1998-12-09 1998-12-09 光学ヘッド及び記録再生装置
JP35053998 1998-12-09

Publications (2)

Publication Number Publication Date
NL1013806A1 true NL1013806A1 (nl) 2000-06-13
NL1013806C2 NL1013806C2 (nl) 2007-03-06

Family

ID=18411181

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1013806A NL1013806C2 (nl) 1998-12-09 1999-12-09 Optische kop, en optische opname- en/of weergeefinrichting.

Country Status (4)

Country Link
US (1) US6473385B1 (nl)
JP (1) JP4140104B2 (nl)
CN (1) CN1171211C (nl)
NL (1) NL1013806C2 (nl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100696759B1 (ko) * 2001-06-08 2007-03-19 엘지전자 주식회사 광픽업 장치
CN1666298B (zh) 2002-06-28 2010-05-05 希捷科技有限公司 形成光能小点的装置和方法
US7412143B2 (en) * 2002-06-28 2008-08-12 Seagate Technology Llc Heat assisted magnetic recording with heat profile shaping
JP4228666B2 (ja) * 2002-11-25 2009-02-25 ソニー株式会社 光学ピックアップ装置、記録再生装置及びギャップ検出方法
US7272079B2 (en) * 2004-06-23 2007-09-18 Seagate Technology Llc Transducer for heat assisted magnetic recording
JP2009541742A (ja) * 2006-06-21 2009-11-26 ユニバーシティ・オブ・デイトン 偏光設計の方法およびそれらの適用例
US7894308B2 (en) * 2006-06-27 2011-02-22 Seagate Technology Llc Near-field optical transducers having a tilted metallic pin
WO2008105651A1 (en) * 2007-03-01 2008-09-04 Telefonaktiebolaget Lm Ericsson (Publ) Mobile service for keeping track of competitors during a race
US8059354B2 (en) * 2009-01-29 2011-11-15 Seagate Technology Llc Transducer for data storage device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69426712T2 (de) * 1993-06-02 2001-09-27 Matsushita Electric Ind Co Ltd Optische Kopfvorrichtung und optisches Informationsgerät
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
JPH07176070A (ja) * 1993-12-20 1995-07-14 Matsushita Electric Ind Co Ltd 浮上式光ヘッド及び光記録再生装置
US5497359A (en) * 1994-08-30 1996-03-05 National Business Machines Corporation Optical disk data storage system with radiation-transparent air-bearing slider
KR100642951B1 (ko) * 1995-10-03 2006-11-10 아사히 가라스 가부시키가이샤 광헤드 장치 및 이의 제조 방법
US5966362A (en) * 1995-11-02 1999-10-12 Konica Corporation Optical system for recording and reproducing for use in optical information recording medium
JP3452113B2 (ja) 1996-08-30 2003-09-29 ソニー株式会社 光情報記録装置および方法、光情報再生装置および方法ならびに光情報記録媒体
US5917788A (en) * 1997-03-10 1999-06-29 Seagate Technology, Inc. Lens for optical data storage system
US5883872A (en) * 1997-05-29 1999-03-16 The Board Of Trustees Of The Leland Stanford Junior University Near field magneto-optical recording system employing slit illumination
US6108135A (en) * 1997-06-16 2000-08-22 Digital Papyrus Corporation Planar proximity lens element and disk drive using same
US5963532A (en) * 1998-01-21 1999-10-05 Terastor Corporation Polarization rotation and phase compensation in near-field electro-optical system
JPH11110812A (ja) * 1997-10-06 1999-04-23 Fujitsu Ltd 光磁気記録媒体及び光学的情報記憶装置
US6009064A (en) * 1997-11-05 1999-12-28 Terastor Corporation Optical head having dielectric transition layer in near-field optical storage system
US6043940A (en) * 1997-11-14 2000-03-28 Kyocera Corporation Optical system for optical recording
US6181393B1 (en) * 1997-12-26 2001-01-30 Kabushiki Kaisha Toshiba Liquid crystal display device and method of manufacturing the same

Also Published As

Publication number Publication date
JP2000173090A (ja) 2000-06-23
CN1266261A (zh) 2000-09-13
CN1171211C (zh) 2004-10-13
JP4140104B2 (ja) 2008-08-27
US6473385B1 (en) 2002-10-29
NL1013806C2 (nl) 2007-03-06

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Legal Events

Date Code Title Description
AD1A A request for search or an international type search has been filed
RD2N Patents in respect of which a decision has been taken or a report has been made (novelty report)

Effective date: 20070103

PD2B A search report has been drawn up
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20050701