KR100841836B1 - 광 디스크 장치 - Google Patents

광 디스크 장치 Download PDF

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Publication number
KR100841836B1
KR100841836B1 KR1020070019304A KR20070019304A KR100841836B1 KR 100841836 B1 KR100841836 B1 KR 100841836B1 KR 1020070019304 A KR1020070019304 A KR 1020070019304A KR 20070019304 A KR20070019304 A KR 20070019304A KR 100841836 B1 KR100841836 B1 KR 100841836B1
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KR
South Korea
Prior art keywords
optical
light
optical element
signal
reference mirror
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
KR1020070019304A
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English (en)
Korean (ko)
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KR20070113960A (ko
Inventor
다께시 시마노
하루까즈 미야모또
Original Assignee
가부시키가이샤 히타치세이사쿠쇼
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.)
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Application filed by 가부시키가이샤 히타치세이사쿠쇼 filed Critical 가부시키가이샤 히타치세이사쿠쇼
Publication of KR20070113960A publication Critical patent/KR20070113960A/ko
Application granted granted Critical
Publication of KR100841836B1 publication Critical patent/KR100841836B1/ko
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    • 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
    • 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
    • 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
    • G11B7/12—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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
KR1020070019304A 2006-05-25 2007-02-27 광 디스크 장치 Expired - Fee Related KR100841836B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006144744A JP2007317284A (ja) 2006-05-25 2006-05-25 光ディスク装置
JPJP-P-2006-00144744 2006-05-25

Publications (2)

Publication Number Publication Date
KR20070113960A KR20070113960A (ko) 2007-11-29
KR100841836B1 true KR100841836B1 (ko) 2008-06-27

Family

ID=38430531

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070019304A Expired - Fee Related KR100841836B1 (ko) 2006-05-25 2007-02-27 광 디스크 장치

Country Status (6)

Country Link
US (2) US7715287B2 (enExample)
EP (1) EP1860655B1 (enExample)
JP (1) JP2007317284A (enExample)
KR (1) KR100841836B1 (enExample)
CN (1) CN100474420C (enExample)
DE (1) DE602007012169D1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101022099B1 (ko) * 2005-02-04 2011-03-17 엘지전자 주식회사 광픽업의 구면수차 보정장치
US8713181B2 (en) * 2007-08-03 2014-04-29 International Business Machines Corporation Method for transferring inventory between virtual universes
JP5171219B2 (ja) * 2007-11-15 2013-03-27 三洋電機株式会社 光ピックアップ装置および光再生装置
JP5153424B2 (ja) * 2008-04-11 2013-02-27 株式会社日立製作所 光ヘッド及び光ディスク装置
JP5081763B2 (ja) * 2008-08-13 2012-11-28 株式会社日立メディアエレクトロニクス 光情報検出方法、光ピックアップ及び光情報記録再生装置
JP5452040B2 (ja) * 2009-03-13 2014-03-26 日立コンシューマエレクトロニクス株式会社 光学的情報再生方法、光ヘッドおよび光ディスク装置
JP5309008B2 (ja) 2009-12-15 2013-10-09 日立コンシューマエレクトロニクス株式会社 光情報記録再生装置および光情報再生装置
CN103038826A (zh) 2011-06-17 2013-04-10 松下电器产业株式会社 调制信号检测装置及调制信号检测方法
WO2013031120A1 (ja) 2011-08-30 2013-03-07 パナソニック株式会社 変調信号検出装置及び変調信号検出方法
WO2013150756A1 (ja) 2012-04-02 2013-10-10 パナソニック株式会社 光ピックアップ及び光ディスク装置
CN109633668B (zh) * 2018-12-26 2021-01-15 中国科学院长春光学精密机械与物理研究所 激光测距装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438042A2 (en) * 1990-01-16 1991-07-24 International Business Machines Corporation Utilizing wasted laser light in optical systems
JPH06223433A (ja) * 1993-01-29 1994-08-12 Nippon Hoso Kyokai <Nhk> 光磁気信号の検出方法および装置
JP2002083431A (ja) 2000-07-05 2002-03-22 Optware:Kk 光情報記録装置および方法、光情報再生装置および方法、ならびに光情報記録再生装置および方法
JP2004022083A (ja) 2002-06-18 2004-01-22 Optware:Kk 光ピックアップ装置
JP2004030734A (ja) 2002-06-24 2004-01-29 Optware:Kk 光ピックアップ装置

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5804814A (en) * 1994-05-20 1998-09-08 Musha; Toru Optical pick-up head and integrated type optical unit for use in optical pick-up head
US5233582A (en) * 1991-02-19 1993-08-03 Pioneer Electronic Corporation Optical waveguide recording medium playing apparatus
JPH04265534A (ja) * 1991-02-19 1992-09-21 Naohiro Tanno 光導波路記録媒体再生装置
JP2769393B2 (ja) * 1991-04-26 1998-06-25 直弘 丹野 立体光記録装置
JP2897532B2 (ja) * 1992-06-02 1999-05-31 日本電気株式会社 相変化型光ディスクの再生方法
JP3057903B2 (ja) 1992-06-04 2000-07-04 株式会社日立製作所 光磁気ディスク装置
JP2783397B2 (ja) * 1992-09-24 1998-08-06 シャープ株式会社 光記録情報読み出し装置及び読み出し方法
JP3162842B2 (ja) * 1992-11-18 2001-05-08 三洋電機株式会社 光学的情報の再生装置
US5729510A (en) * 1994-01-19 1998-03-17 Kabushiki Kaisha Toshiba Optical head used for recording on optical recording medium having various thicknesses, warpage and the like
JP3660415B2 (ja) * 1995-02-07 2005-06-15 富士通株式会社 光学記憶装置用光学デバイス
JPH0935284A (ja) * 1995-07-17 1997-02-07 Fujitsu Ltd 光ディスク装置
WO1997028403A1 (en) * 1996-02-01 1997-08-07 Mitsubishi Rayon Co., Ltd. Surface light source element and liquid crystal display device, sign device and traffic control sign device using same
KR100189911B1 (ko) * 1996-05-15 1999-06-01 윤종용 광디스크 드라이브의 서보장치 및 그 제어방법
DE19638878A1 (de) * 1996-09-23 1998-03-26 Thomson Brandt Gmbh Aufzeichnungs- oder Wiedergabegerät zum Aufzeichnen auf oder Wiedergeben von einem optischen Aufzeichnungsträger
US6181666B1 (en) * 1996-10-21 2001-01-30 Olympus Optical Company, Ltd. Optical pickup
KR100478559B1 (ko) * 1997-08-29 2005-07-21 삼성전자주식회사 기록및재생가능형디스크를위한광픽업
US5883875A (en) * 1997-09-02 1999-03-16 International Business Machines Corporation Short coherent-length optical tomograph for high density volume optical data storage devices
US6229771B1 (en) * 1998-10-09 2001-05-08 Zen Research (Ireland), Ltd. Method and apparatus for generating focus error signals in a multi-beam optical disk drive
JP3782916B2 (ja) * 2000-02-18 2006-06-07 富士通株式会社 光情報記憶装置および光学素子
US20020036958A1 (en) * 2000-07-24 2002-03-28 Hidenori Wada Optical element, optical head, optical recording/reproducing apparatus and optical recording/reproducing method
TW591248B (en) * 2001-05-12 2004-06-11 Samsung Electronics Co Ltd Many-sided reflection prism and optical pickup
TW200306550A (en) * 2002-03-29 2003-11-16 Matsushita Electric Industrial Co Ltd Optical pick-up apparatus and optical disc apparatus
CN1300777C (zh) * 2003-10-17 2007-02-14 上海乐金广电电子有限公司 聚焦错误信号和跟踪错误信号的干涉去除装置和方法
JP2007213755A (ja) * 2006-01-13 2007-08-23 Sony Corp 光ディスク装置、光ピックアップ装置及び非点収差の抑制方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438042A2 (en) * 1990-01-16 1991-07-24 International Business Machines Corporation Utilizing wasted laser light in optical systems
JPH05135419A (ja) * 1990-01-16 1993-06-01 Internatl Business Mach Corp <Ibm> 光学的システムにおける廃棄レーザ光の利用
JPH06223433A (ja) * 1993-01-29 1994-08-12 Nippon Hoso Kyokai <Nhk> 光磁気信号の検出方法および装置
JP2002083431A (ja) 2000-07-05 2002-03-22 Optware:Kk 光情報記録装置および方法、光情報再生装置および方法、ならびに光情報記録再生装置および方法
JP2004022083A (ja) 2002-06-18 2004-01-22 Optware:Kk 光ピックアップ装置
JP2004030734A (ja) 2002-06-24 2004-01-29 Optware:Kk 光ピックアップ装置

Also Published As

Publication number Publication date
DE602007012169D1 (de) 2011-03-10
EP1860655B1 (en) 2011-01-26
JP2007317284A (ja) 2007-12-06
EP1860655A3 (en) 2008-01-23
US20100188961A1 (en) 2010-07-29
US7911889B2 (en) 2011-03-22
KR20070113960A (ko) 2007-11-29
CN101079282A (zh) 2007-11-28
US20070274171A1 (en) 2007-11-29
EP1860655A2 (en) 2007-11-28
US7715287B2 (en) 2010-05-11
CN100474420C (zh) 2009-04-01

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