DE60039644D1 - Linse, optischer Kopf, optisches Informationsaufzeichnungs-/Wiedergabegerät sowie optisches Informationsaufzeichnungs-/Wiedergabeverfahren - Google Patents

Linse, optischer Kopf, optisches Informationsaufzeichnungs-/Wiedergabegerät sowie optisches Informationsaufzeichnungs-/Wiedergabeverfahren

Info

Publication number
DE60039644D1
DE60039644D1 DE60039644T DE60039644T DE60039644D1 DE 60039644 D1 DE60039644 D1 DE 60039644D1 DE 60039644 T DE60039644 T DE 60039644T DE 60039644 T DE60039644 T DE 60039644T DE 60039644 D1 DE60039644 D1 DE 60039644D1
Authority
DE
Germany
Prior art keywords
information recording
optical information
optical
lens
reproducing
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 - Lifetime
Application number
DE60039644T
Other languages
English (en)
Inventor
Hideki Hayashi
Sadao Mizuno
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE60039644D1 publication Critical patent/DE60039644D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353Diffractive elements, e.g. holograms or gratings
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10305Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition 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
    • G11B7/0943Methods and circuits for performing mathematical operations on individual detector segment outputs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127Lasers; Multiple laser arrays
    • G11B7/1275Two or more lasers having different wavelengths
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13Optical detectors therefor
    • G11B7/133Shape of individual detector elements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367Stepped phase plates
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B7/1374Objective lenses
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B7/1378Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/139Numerical aperture control means
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1392Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13922Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2403Layers; Shape, structure or physical properties thereof
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B2007/0003Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • G11B2007/13727Compound 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2562DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Head (AREA)
DE60039644T 1999-10-06 2000-10-05 Linse, optischer Kopf, optisches Informationsaufzeichnungs-/Wiedergabegerät sowie optisches Informationsaufzeichnungs-/Wiedergabeverfahren Expired - Lifetime DE60039644D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28581099 1999-10-06

Publications (1)

Publication Number Publication Date
DE60039644D1 true DE60039644D1 (de) 2008-09-04

Family

ID=17696390

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60039644T Expired - Lifetime DE60039644D1 (de) 1999-10-06 2000-10-05 Linse, optischer Kopf, optisches Informationsaufzeichnungs-/Wiedergabegerät sowie optisches Informationsaufzeichnungs-/Wiedergabeverfahren
DE60038809T Expired - Lifetime DE60038809D1 (de) 1999-10-06 2000-10-05 Optischer kopf, optisches informationsaufzeichnungs-/wiedergabegerät sowie optischesinformationsaufzeichnungs-/wiedergabeverfahren

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60038809T Expired - Lifetime DE60038809D1 (de) 1999-10-06 2000-10-05 Optischer kopf, optisches informationsaufzeichnungs-/wiedergabegerät sowie optischesinformationsaufzeichnungs-/wiedergabeverfahren

Country Status (6)

Country Link
US (2) US6995909B1 (de)
EP (2) EP1515319B1 (de)
KR (1) KR100804869B1 (de)
AU (1) AU7556600A (de)
DE (2) DE60039644D1 (de)
WO (1) WO2001026104A1 (de)

Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2002086577A1 (ja) * 2001-04-17 2004-08-12 松下電器産業株式会社 対物レンズ、光ヘッド装置及び光情報記録再生装置
JP2002367213A (ja) * 2001-06-06 2002-12-20 Konica Corp 光ピックアップ装置の光学素子
JP4333580B2 (ja) * 2002-04-26 2009-09-16 エプソントヨコム株式会社 積層波長板及びそれを用いた光ピックアップ
JP2004253111A (ja) * 2003-01-31 2004-09-09 Sharp Corp 光ピックアップ装置
JP2004301881A (ja) * 2003-03-28 2004-10-28 Fuji Photo Optical Co Ltd 光記録媒体用対物レンズおよびこれを用いた光ピックアップ装置
US7898144B2 (en) * 2006-02-04 2011-03-01 Angstrom, Inc. Multi-step microactuator providing multi-step displacement to a controlled object
US7330297B2 (en) * 2005-03-04 2008-02-12 Angstrom, Inc Fine control of rotation and translation of discretely controlled micromirror
US7382516B2 (en) * 2004-06-18 2008-06-03 Angstrom, Inc. Discretely controlled micromirror with multi-level positions
US8537204B2 (en) * 2004-07-08 2013-09-17 Gyoung Il Cho 3D television broadcasting system
US7474454B2 (en) * 2004-06-18 2009-01-06 Angstrom, Inc. Programmable micromirror motion control system
US7580178B2 (en) * 2004-02-13 2009-08-25 Angstrom, Inc. Image-guided microsurgery system and method
US7751694B2 (en) * 2004-02-13 2010-07-06 Angstrom, Inc. Three-dimensional endoscope imaging and display system
US7350922B2 (en) * 2004-02-13 2008-04-01 Angstrom, Inc. Three-dimensional display using variable focal length micromirror array lens
US7339746B2 (en) * 2004-03-22 2008-03-04 Angstrom, Inc. Small and fast zoom system using micromirror array lens
US7768571B2 (en) * 2004-03-22 2010-08-03 Angstrom, Inc. Optical tracking system using variable focal length lens
US7410266B2 (en) * 2004-03-22 2008-08-12 Angstrom, Inc. Three-dimensional imaging system for robot vision
US20070040924A1 (en) * 2005-08-19 2007-02-22 Stereo Display, Inc. Cellular phone camera with three-dimensional imaging function
US8049776B2 (en) * 2004-04-12 2011-11-01 Angstrom, Inc. Three-dimensional camcorder
US20070115261A1 (en) * 2005-11-23 2007-05-24 Stereo Display, Inc. Virtual Keyboard input system using three-dimensional motion detection by variable focal length lens
US7742232B2 (en) * 2004-04-12 2010-06-22 Angstrom, Inc. Three-dimensional imaging system
US7619614B2 (en) * 2004-04-12 2009-11-17 Angstrom, Inc. Three-dimensional optical mouse system
US7354167B2 (en) 2004-05-27 2008-04-08 Angstrom, Inc. Beam focusing and scanning system using micromirror array lens
US7667896B2 (en) 2004-05-27 2010-02-23 Angstrom, Inc. DVD recording and reproducing system
US7315503B2 (en) * 2004-09-03 2008-01-01 Angstrom, Inc. Optical pick-up device using micromirror array lens
US7777959B2 (en) * 2004-05-27 2010-08-17 Angstrom, Inc. Micromirror array lens with fixed focal length
US7619807B2 (en) * 2004-11-08 2009-11-17 Angstrom, Inc. Micromirror array lens with optical surface profiles
US7489434B2 (en) 2007-05-02 2009-02-10 Angstrom, Inc. Hybrid micromirror array lens for reducing chromatic aberration
US20060198011A1 (en) * 2005-03-04 2006-09-07 Stereo Display, Inc. Volumetric three-dimensional device using two-dimensional scanning device
US20060203117A1 (en) * 2005-03-10 2006-09-14 Stereo Display, Inc. Video monitoring system using variable focal length lens
US20070041077A1 (en) * 2005-08-19 2007-02-22 Stereo Display, Inc. Pocket-sized two-dimensional image projection system
US9736346B2 (en) 2006-05-09 2017-08-15 Stereo Display, Inc Imaging system improving image resolution of the system with low resolution image sensor
US7365899B2 (en) * 2006-08-10 2008-04-29 Angstrom, Inc. Micromirror with multi-axis rotation and translation
US7589884B2 (en) * 2006-09-22 2009-09-15 Angstrom, Inc. Micromirror array lens with encapsulation of reflective metal layer and method of making the same
US7589885B2 (en) * 2006-09-22 2009-09-15 Angstrom, Inc. Micromirror array device comprising encapsulated reflective metal layer and method of making the same
US7488082B2 (en) 2006-12-12 2009-02-10 Angstrom, Inc. Discretely controlled micromirror array device with segmented electrodes
US7535618B2 (en) * 2007-03-12 2009-05-19 Angstrom, Inc. Discretely controlled micromirror device having multiple motions
US9505606B2 (en) * 2007-06-13 2016-11-29 Angstrom, Inc. MEMS actuator with discretely controlled multiple motions
US7605988B2 (en) * 2007-07-23 2009-10-20 Angstrom, Inc. Compact image taking lens system with a lens-surfaced prism
US7589916B2 (en) * 2007-08-10 2009-09-15 Angstrom, Inc. Micromirror array with iris function
US20090185067A1 (en) * 2007-12-21 2009-07-23 Stereo Display, Inc. Compact automatic focusing camera
US8810908B2 (en) * 2008-03-18 2014-08-19 Stereo Display, Inc. Binoculars with micromirror array lenses
US8622557B2 (en) * 2008-05-20 2014-01-07 Stereo Display, Inc. Micromirror array lens with self-tilted micromirrors
US20090303569A1 (en) * 2008-05-20 2009-12-10 Stereo Didplay, Inc. Self-tilted micromirror device
US10139528B1 (en) * 2016-01-20 2018-11-27 Kla-Tencor Corporation Compound objectives for imaging and scatterometry overlay

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000135A (nl) 1989-01-30 1990-08-16 Seiko Epson Corp Focusseermechanisme en optische kop.
US5815293A (en) * 1993-02-01 1998-09-29 Matsushita Electric Industrial Co., Ltd. Compound objective lens having two focal points
JP2532818B2 (ja) 1993-02-01 1996-09-11 松下電器産業株式会社 対物レンズおよび光ヘッド装置
US5930214A (en) 1994-01-19 1999-07-27 Kabushiki Kaisha Toshiba Recording/reproducing optical head apparatus compatible with different optical media
JP3435249B2 (ja) 1994-03-11 2003-08-11 株式会社東芝 光学ヘッド装置およびレンズ
JPH08212612A (ja) 1994-11-17 1996-08-20 Canon Inc 光学的情報記録再生装置及び該装置用光ヘッド
JPH09145995A (ja) * 1995-11-27 1997-06-06 Konica Corp 光情報記録媒体の記録再生用光学系
JP4006032B2 (ja) * 1995-12-28 2007-11-14 株式会社日立製作所 対物レンズおよび光ヘッド
KR0176569B1 (ko) 1996-01-29 1999-04-15 김광호 광디스크 시스템에 있어서 두께가 다른 디스크간의 자동판별방법 및 장치
KR100238266B1 (ko) 1996-02-14 2000-02-01 윤종용 광학장치
KR0176595B1 (ko) * 1996-04-30 1999-04-15 김광호 대물렌즈장치 및 이 대물렌즈장치를 채용한 광픽업장치
JP3531024B2 (ja) 1996-07-10 2004-05-24 コニカミノルタホールディングス株式会社 光情報記録媒体の記録及び/又は再生用光学系及び対物レンズ
KR100346398B1 (ko) 1998-10-23 2002-10-25 삼성전자 주식회사 계단형회절격자구조를갖는평판렌즈를채용하여cd-rw에호환하는dvd용광기록/픽업헤드
EP0838812B1 (de) 1996-10-23 2003-04-09 Konica Corporation Verfahren zur Aufzeichnung und Wiedergabe eines optischen Aufzeichnungsträgers, Objektivlinse sowie Herstellungsmethode der Objektivlinse
JP4038843B2 (ja) 1996-10-23 2008-01-30 コニカミノルタホールディングス株式会社 光情報記録媒体の記録/再生方法、光ピックアップ装置、集光光学系、対物レンズ及び対物レンズの設計方法
JPH10188322A (ja) 1996-12-26 1998-07-21 Nec Corp 光ヘッド
US6091691A (en) * 1997-02-13 2000-07-18 Samsung Electronics Co., Ltd. Optical pickup having an objective lens compatible with a plurality of optical disk formats
JP3644179B2 (ja) 1997-02-17 2005-04-27 ソニー株式会社 対物レンズ、再生装置及び再生方法
EP1884944B1 (de) * 1997-03-13 2014-08-27 Hitachi Maxell, Ltd. Kompatible Objektivlinse
JP3484038B2 (ja) 1997-03-13 2004-01-06 株式会社日立製作所 対物レンズおよびそれを用いた光ヘッド
JP3823425B2 (ja) 1997-03-27 2006-09-20 コニカミノルタホールディングス株式会社 光ピックアップ装置および光ピックアップ装置の補正素子
KR100209918B1 (ko) * 1997-03-28 1999-07-15 윤종용 홀로그램형링렌즈를 사용하여 cd-r과 호환하는 dvd용 광픽업
DE69840429D1 (de) 1997-04-21 2009-02-26 Konica Corp Optische Abtastvorrichtung
JPH10293937A (ja) * 1997-04-21 1998-11-04 Konica Corp 光ピックアップ装置
JPH10334504A (ja) * 1997-05-29 1998-12-18 Nec Corp 光ヘッド装置
TW432225B (en) 1998-06-03 2001-05-01 Konishiroku Photo Ind Optical pickup apparatus
ID28515A (id) 1998-06-26 2001-05-31 Asahi Optical Co Ltd Lensa objektif untuk pemungut optik
JP3689266B2 (ja) 1998-06-26 2005-08-31 ペンタックス株式会社 光ヘッド用対物レンズ
JP4517407B2 (ja) * 1998-07-14 2010-08-04 コニカミノルタホールディングス株式会社 光情報記録媒体の記録再生用光ピックアップ装置

Also Published As

Publication number Publication date
EP1515319B1 (de) 2008-07-23
EP1223575B1 (de) 2008-05-07
WO2001026104A1 (fr) 2001-04-12
KR100804869B1 (ko) 2008-02-20
US20040208111A1 (en) 2004-10-21
DE60038809D1 (de) 2008-06-19
EP1223575A4 (de) 2004-05-12
EP1515319A1 (de) 2005-03-16
EP1223575A1 (de) 2002-07-17
KR20020037375A (ko) 2002-05-18
US6995909B1 (en) 2006-02-07
AU7556600A (en) 2001-05-10

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