WO2008120370A1 - 情報記録再生装置 - Google Patents

情報記録再生装置 Download PDF

Info

Publication number
WO2008120370A1
WO2008120370A1 PCT/JP2007/056931 JP2007056931W WO2008120370A1 WO 2008120370 A1 WO2008120370 A1 WO 2008120370A1 JP 2007056931 W JP2007056931 W JP 2007056931W WO 2008120370 A1 WO2008120370 A1 WO 2008120370A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
light
recording
laser beam
originating
Prior art date
Application number
PCT/JP2007/056931
Other languages
English (en)
French (fr)
Inventor
Kunihiko Horikawa
Eiji Muramatsu
Masahiro Miura
Atsushi Yamaguchi
Kazuo Kuroda
Kazutoshi Kitano
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/056931 priority Critical patent/WO2008120370A1/ja
Priority to JP2009509011A priority patent/JPWO2008126619A1/ja
Priority to US12/593,552 priority patent/US20100149951A1/en
Priority to PCT/JP2008/054645 priority patent/WO2008126619A1/ja
Publication of WO2008120370A1 publication Critical patent/WO2008120370A1/ja

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
    • G11B7/1353—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
    • G11B7/08—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
    • G11B7/0908—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 focusing only
    • 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
    • G11B7/1387—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 Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

情報記録再生装置（１）は、記録又は再生の別に応じたレーザ光を出射する光源（１１）と、出射されるレーザ光を記録媒体（１００）へ誘導する光学系（１２～１９）と、誘導されるレーザ光を、メインビームとサブビームとに分離するように回折させる回折手段（１４）と、分離されるサブビームに係るエバネッセント光を、記録媒体の記録面に備わる記録ピットの形成されていないトラックに対して照射させるサブビームに係るエバネッセント光発生手段（２１）と、サブビームに係る戻り光を受光するサブ受光手段（３１１）と、サブビームに係るエバネッセント光発生手段を、記録面とのギャップを変化させる方向に移動させる移動手段（２１０）と、移動手段を、ギャップが所定の目標値になるように、受光されるサブビームに係る戻り光の光量を示す信号を含んでなるギャップエラー信号に基づいて制御する制御手段（３１５）とを備える。
PCT/JP2007/056931 2007-03-29 2007-03-29 情報記録再生装置 WO2008120370A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2007/056931 WO2008120370A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置
JP2009509011A JPWO2008126619A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置
US12/593,552 US20100149951A1 (en) 2007-03-29 2008-03-13 Information recording and reproducing device
PCT/JP2008/054645 WO2008126619A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056931 WO2008120370A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置

Publications (1)

Publication Number Publication Date
WO2008120370A1 true WO2008120370A1 (ja) 2008-10-09

Family

ID=39807963

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2007/056931 WO2008120370A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置
PCT/JP2008/054645 WO2008126619A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054645 WO2008126619A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置

Country Status (3)

Country Link
US (1) US20100149951A1 (ja)
JP (1) JPWO2008126619A1 (ja)
WO (2) WO2008120370A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008120371A1 (ja) * 2007-03-29 2008-10-09 Pioneer Corporation 情報記録再生装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000285486A (ja) * 1999-03-31 2000-10-13 Toshiba Corp 情報記録再生装置
JP2006331471A (ja) * 2005-05-23 2006-12-07 Canon Inc 光情報記録再生装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001023190A (ja) * 1999-07-07 2001-01-26 Sony Corp 露光装置、露光方法、光ディスク装置、及び記録及び／又は再生方法
US6804189B2 (en) * 2000-04-07 2004-10-12 Tosoh Corporation Near field optical recording medium
JP2004030860A (ja) * 2002-04-30 2004-01-29 Pioneer Electronic Corp 記録ディスク及び記録情報再生装置並びに記録情報再生方法
US7613082B2 (en) * 2004-05-18 2009-11-03 Sony Corporation Optical pickup device, optical recording and reproducing apparatus and gap detection method
JP2005332447A (ja) * 2004-05-18 2005-12-02 Sony Corp 光学ピックアップ装置、光記録再生装置及びギャップ検出方法
JP2006012301A (ja) * 2004-06-25 2006-01-12 Sony Corp 光記録再生方法、光ピックアップ装置、光記録再生装置、光記録媒体とその製造方法及び半導体レーザ装置
KR101107055B1 (ko) * 2004-11-24 2012-01-25 엘지전자 주식회사 니어 필드 레코딩 디스크의 트래킹 서보 제어장치 및 방법
JP4449819B2 (ja) * 2005-05-17 2010-04-14 ソニー株式会社 光再生方法、波形等化方法及び光記録再生装置
US20080062854A1 (en) * 2005-06-13 2008-03-13 Sony Corporation Disc Recording Medium, Disc Drive, and Manufactuing Method of Optical Disc
JP2007193894A (ja) * 2006-01-19 2007-08-02 Sony Corp 光記録再生装置、光学ピックアップ及びトラッキングエラー信号検出方法
WO2008120371A1 (ja) * 2007-03-29 2008-10-09 Pioneer Corporation 情報記録再生装置
WO2008120372A1 (ja) * 2007-03-29 2008-10-09 Pioneer Corporation 情報記録再生装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000285486A (ja) * 1999-03-31 2000-10-13 Toshiba Corp 情報記録再生装置
JP2006331471A (ja) * 2005-05-23 2006-12-07 Canon Inc 光情報記録再生装置

Also Published As

Publication number Publication date
US20100149951A1 (en) 2010-06-17
JPWO2008126619A1 (ja) 2010-07-22
WO2008126619A1 (ja) 2008-10-23

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