WO2008120372A1 - 情報記録再生装置 - Google Patents

情報記録再生装置 Download PDF

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Publication number
WO2008120372A1
WO2008120372A1 PCT/JP2007/056933 JP2007056933W WO2008120372A1 WO 2008120372 A1 WO2008120372 A1 WO 2008120372A1 JP 2007056933 W JP2007056933 W JP 2007056933W WO 2008120372 A1 WO2008120372 A1 WO 2008120372A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording
gap
evanescent light
sub
generating means
Prior art date
Application number
PCT/JP2007/056933
Other languages
English (en)
French (fr)
Inventor
Kunihiko Horikawa
Eiji Muramatsu
Kazutoshi Kitano
Atsushi Yamaguchi
Masahiro Miura
Kazuo Kuroda
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/JP2007/056933 priority Critical patent/WO2008120372A1/ja
Priority to JP2009509013A priority patent/JPWO2008126621A1/ja
Priority to PCT/JP2008/054647 priority patent/WO2008126621A1/ja
Priority to US12/593,439 priority patent/US20100118684A1/en
Publication of WO2008120372A1 publication Critical patent/WO2008120372A1/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
    • G11B7/08—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
    • G11B7/1353—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
    • G11B7/1372—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

情報記録再生装置は、レーザ光を、回折手段（１４）により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、メインビームに係るエバネッセント光を、エバネッセント光発生手段（２１）により、記録ピットの形成されているトラックに対して照射させると共に、分離されるサブビームに係るエバネッセント光を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。移動手段（２１０）は、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。そして、判定手段（４０）は、記録媒体上に形成されている記録ピットの凸凹状態を判定し、その結果に基づいて、信号生成手段（３１６１）は、サブビーム又はメインビームに係る戻り光の光量を示す信号からギャップエラー信号を生成し、制御手段（３１５）は、判定される凸凹状態に応じた目標値にギャップがなるように、ギャップエラー信号に基づいて移動手段を制御する。
PCT/JP2007/056933 2007-03-29 2007-03-29 情報記録再生装置 WO2008120372A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2007/056933 WO2008120372A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置
JP2009509013A JPWO2008126621A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置
PCT/JP2008/054647 WO2008126621A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置
US12/593,439 US20100118684A1 (en) 2007-03-29 2008-03-13 Information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056933 WO2008120372A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置

Publications (1)

Publication Number Publication Date
WO2008120372A1 true WO2008120372A1 (ja) 2008-10-09

Family

ID=39807965

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2007/056933 WO2008120372A1 (ja) 2007-03-29 2007-03-29 情報記録再生装置
PCT/JP2008/054647 WO2008126621A1 (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/JP2008/054647 WO2008126621A1 (ja) 2007-03-29 2008-03-13 情報記録再生装置

Country Status (3)

Country Link
US (1) US20100118684A1 (ja)
JP (1) JPWO2008126621A1 (ja)
WO (2) WO2008120372A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008120370A1 (ja) * 2007-03-29 2008-10-09 Pioneer Corporation 情報記録再生装置
WO2008120371A1 (ja) * 2007-03-29 2008-10-09 Pioneer Corporation 情報記録再生装置
US9927722B2 (en) 2015-02-25 2018-03-27 Asml Netherlands B.V. Method and apparatus for inspection and metrology

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 (7)

* 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
JP2005322447A (ja) * 2004-05-06 2005-11-17 Kansai Electric Power Co Inc:The レドックスフロー電池システムの運転方法
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

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
WO2008126621A1 (ja) 2008-10-23
US20100118684A1 (en) 2010-05-13
JPWO2008126621A1 (ja) 2010-07-22

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