CN1881432B - 用于光学记录介质的拾取器 - Google Patents

用于光学记录介质的拾取器 Download PDF

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Publication number
CN1881432B
CN1881432B CN2006100923854A CN200610092385A CN1881432B CN 1881432 B CN1881432 B CN 1881432B CN 2006100923854 A CN2006100923854 A CN 2006100923854A CN 200610092385 A CN200610092385 A CN 200610092385A CN 1881432 B CN1881432 B CN 1881432B
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CN
China
Prior art keywords
light beam
grating
state
data tracks
bank
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2006100923854A
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English (en)
Chinese (zh)
Other versions
CN1881432A (zh
Inventor
乔基姆·尼特尔
哈特穆特·里克特
盖尔·派拉德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THOMSON LICENSING CORP
Original Assignee
THOMSON LICENSING 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 THOMSON LICENSING CORP filed Critical THOMSON LICENSING CORP
Publication of CN1881432A publication Critical patent/CN1881432A/zh
Application granted granted Critical
Publication of CN1881432B publication Critical patent/CN1881432B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1828—Diffraction gratings having means for producing variable diffraction
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • 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
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CN2006100923854A 2005-06-16 2006-06-02 用于光学记录介质的拾取器 Expired - Fee Related CN1881432B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05012989.9 2005-06-16
EP05012989A EP1736975A1 (en) 2005-06-16 2005-06-16 Pickup for optical recording medium

Publications (2)

Publication Number Publication Date
CN1881432A CN1881432A (zh) 2006-12-20
CN1881432B true CN1881432B (zh) 2012-09-05

Family

ID=35276135

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2006100923854A Expired - Fee Related CN1881432B (zh) 2005-06-16 2006-06-02 用于光学记录介质的拾取器

Country Status (8)

Country Link
US (1) US7541564B2 (enExample)
EP (2) EP1736975A1 (enExample)
JP (1) JP4996139B2 (enExample)
KR (1) KR101296761B1 (enExample)
CN (1) CN1881432B (enExample)
DE (1) DE602006008387D1 (enExample)
MY (1) MY143008A (enExample)
TW (1) TWI376689B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4433315B2 (ja) * 2006-01-12 2010-03-17 ソニー株式会社 光ピックアップ及び光情報装置
EP2009626A1 (en) * 2007-06-29 2008-12-31 Deutsche Thomson OHG Apparatus comprising a pickup unit providing three beams for reading data from or writing data to an optical storage medium, and respective optical storage medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717674A (en) * 1995-06-30 1998-02-10 Sanyo Electrics Co., Ltd. Three-beam generating diffraction grating, transmission type holographic optical element and optical pickup apparatus using the same
WO2002095742A1 (en) * 2001-05-25 2002-11-28 Zen Research (Ireland), Ltd. Switchable liquid crystal diffractive element
CN1407364A (zh) * 2001-08-24 2003-04-02 柯尼卡株式会社 拾光装置及其物镜和拾光装置用光学元件的设计方法
WO2004032123A1 (en) * 2002-10-04 2004-04-15 Koninklijke Philips Electronics N.V. High track density super resolution mo-rom medium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113937A (ja) * 1986-10-31 1988-05-18 Kyocera Corp 光学的読み取り方法
JPH0793757A (ja) * 1993-09-22 1995-04-07 Sanyo Electric Co Ltd 光記録媒体及びその記録再生方法
JP3560805B2 (ja) * 1998-03-20 2004-09-02 パイオニア株式会社 光ピックアップ
US6687196B1 (en) * 1998-05-08 2004-02-03 Fuji Xerox Co., Lt.D. Method and apparatus for implementing high density recording on a recording medium and a method of manufacturing same
JP2002074727A (ja) * 2000-09-01 2002-03-15 Samsung Electro Mech Co Ltd ダイナミック制御回折格子並びに情報記録再生装置と情報再生装置
JP2003099984A (ja) * 2001-09-26 2003-04-04 Toshiba Corp 光学的情報記録または再生装置および光学的情報記録媒体
JP3772851B2 (ja) * 2003-03-28 2006-05-10 ソニー株式会社 光ピックアップ装置及び光ディスク装置
JP2005339646A (ja) * 2004-05-26 2005-12-08 Mitsumi Electric Co Ltd 光ピックアップおよびそれに使用される回折格子

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5717674A (en) * 1995-06-30 1998-02-10 Sanyo Electrics Co., Ltd. Three-beam generating diffraction grating, transmission type holographic optical element and optical pickup apparatus using the same
WO2002095742A1 (en) * 2001-05-25 2002-11-28 Zen Research (Ireland), Ltd. Switchable liquid crystal diffractive element
CN1407364A (zh) * 2001-08-24 2003-04-02 柯尼卡株式会社 拾光装置及其物镜和拾光装置用光学元件的设计方法
WO2004032123A1 (en) * 2002-10-04 2004-04-15 Koninklijke Philips Electronics N.V. High track density super resolution mo-rom medium

Also Published As

Publication number Publication date
KR101296761B1 (ko) 2013-08-14
EP1736977B1 (en) 2009-08-12
MY143008A (en) 2011-02-14
EP1736975A1 (en) 2006-12-27
JP4996139B2 (ja) 2012-08-08
EP1736977A1 (en) 2006-12-27
US7541564B2 (en) 2009-06-02
JP2006351169A (ja) 2006-12-28
DE602006008387D1 (de) 2009-09-24
US20060285471A1 (en) 2006-12-21
TW200701216A (en) 2007-01-01
CN1881432A (zh) 2006-12-20
TWI376689B (en) 2012-11-11
KR20060131622A (ko) 2006-12-20

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120905

Termination date: 20160602