JP4763581B2 - 光ピックアップ装置 - Google Patents

光ピックアップ装置 Download PDF

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Publication number
JP4763581B2
JP4763581B2 JP2006319080A JP2006319080A JP4763581B2 JP 4763581 B2 JP4763581 B2 JP 4763581B2 JP 2006319080 A JP2006319080 A JP 2006319080A JP 2006319080 A JP2006319080 A JP 2006319080A JP 4763581 B2 JP4763581 B2 JP 4763581B2
Authority
JP
Japan
Prior art keywords
light
optical system
sub
reflected
signal
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
JP2006319080A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008135097A5 (enExample
JP2008135097A (ja
Inventor
茂治 木村
健 島野
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.)
Hitachi Consumer Electronics Co Ltd
Original Assignee
Hitachi Media Electronics 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 Hitachi Media Electronics Co Ltd filed Critical Hitachi Media Electronics Co Ltd
Priority to JP2006319080A priority Critical patent/JP4763581B2/ja
Priority to US11/704,953 priority patent/US7664005B2/en
Priority to CN200710005764A priority patent/CN100583255C/zh
Publication of JP2008135097A publication Critical patent/JP2008135097A/ja
Publication of JP2008135097A5 publication Critical patent/JP2008135097A5/ja
Application granted granted Critical
Publication of JP4763581B2 publication Critical patent/JP4763581B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • 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
    • G11B7/1362—Mirrors
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2006319080A 2006-11-27 2006-11-27 光ピックアップ装置 Expired - Fee Related JP4763581B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006319080A JP4763581B2 (ja) 2006-11-27 2006-11-27 光ピックアップ装置
US11/704,953 US7664005B2 (en) 2006-11-27 2007-02-12 Optical pickup apparatus
CN200710005764A CN100583255C (zh) 2006-11-27 2007-02-13 光学拾取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006319080A JP4763581B2 (ja) 2006-11-27 2006-11-27 光ピックアップ装置

Publications (3)

Publication Number Publication Date
JP2008135097A JP2008135097A (ja) 2008-06-12
JP2008135097A5 JP2008135097A5 (enExample) 2009-07-30
JP4763581B2 true JP4763581B2 (ja) 2011-08-31

Family

ID=39465462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006319080A Expired - Fee Related JP4763581B2 (ja) 2006-11-27 2006-11-27 光ピックアップ装置

Country Status (3)

Country Link
US (1) US7664005B2 (enExample)
JP (1) JP4763581B2 (enExample)
CN (1) CN100583255C (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080076650A (ko) * 2007-02-16 2008-08-20 삼성전자주식회사 광 픽업과 이를 갖는 디스크장치
CN101339779B (zh) * 2008-07-09 2011-11-02 中国华录·松下电子信息有限公司 光盘视盘机的循迹伺服方法及专用装置
JP5094691B2 (ja) * 2008-12-09 2012-12-12 株式会社日立メディアエレクトロニクス 光ピックアップ装置
JP5149235B2 (ja) * 2009-04-20 2013-02-20 株式会社日立メディアエレクトロニクス 光ピックアップ装置
JP5286233B2 (ja) 2009-11-27 2013-09-11 株式会社日立メディアエレクトロニクス 光ピックアップ装置
CN103329202B (zh) 2011-01-20 2016-01-13 三菱电机株式会社 光拾取装置及光盘装置
US9689987B1 (en) * 2012-06-13 2017-06-27 Physical Optics Corporation Integrative optics system, device, and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3670720B2 (ja) * 1995-07-25 2005-07-13 ペンタックス株式会社 情報読み取り装置の製造方法
KR20000009844A (ko) * 1998-07-29 2000-02-15 사까이 히로시 광픽업
JP2002367211A (ja) 2001-06-11 2002-12-20 Hitachi Ltd 光学情報記録再生装置
JP4234013B2 (ja) * 2001-12-14 2009-03-04 パナソニック株式会社 光情報再生方法、光ヘッド装置、および光情報処理装置
JP2004234818A (ja) * 2003-01-07 2004-08-19 Matsushita Electric Ind Co Ltd 光学ヘッド
JP4325468B2 (ja) 2004-04-07 2009-09-02 株式会社日立製作所 光情報記録再生装置
JP2008004239A (ja) * 2006-06-26 2008-01-10 Sharp Corp 光ピックアップおよびこれを備える光ディスクドライブ装置

Also Published As

Publication number Publication date
CN100583255C (zh) 2010-01-20
US20080127238A1 (en) 2008-05-29
JP2008135097A (ja) 2008-06-12
US7664005B2 (en) 2010-02-16
CN101192428A (zh) 2008-06-04

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