TW200703301A - Disk drive unit and spherical aberration compensation method - Google Patents

Disk drive unit and spherical aberration compensation method

Info

Publication number
TW200703301A
TW200703301A TW095109105A TW95109105A TW200703301A TW 200703301 A TW200703301 A TW 200703301A TW 095109105 A TW095109105 A TW 095109105A TW 95109105 A TW95109105 A TW 95109105A TW 200703301 A TW200703301 A TW 200703301A
Authority
TW
Taiwan
Prior art keywords
layer
fcs
spherical aberration
actuator
drive unit
Prior art date
Application number
TW095109105A
Other languages
English (en)
Other versions
TWI359419B (zh
Inventor
Junichi Kanenaga
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of TW200703301A publication Critical patent/TW200703301A/zh
Application granted granted Critical
Publication of TWI359419B publication Critical patent/TWI359419B/zh

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
    • G11B7/1372—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
    • G11B7/12—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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • G11B7/13925—Means for controlling the beam wavefront, e.g. for correction of aberration active, e.g. controlled by electrical or mechanical means
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • 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
    • G11B7/08—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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
TW095109105A 2005-04-04 2006-03-17 Disk drive unit and spherical aberration compensation method TW200703301A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005107176A JP2006286132A (ja) 2005-04-04 2005-04-04 ディスクドライブ装置および球面収差補正方法

Publications (2)

Publication Number Publication Date
TW200703301A true TW200703301A (en) 2007-01-16
TWI359419B TWI359419B (zh) 2012-03-01

Family

ID=36992566

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095109105A TW200703301A (en) 2005-04-04 2006-03-17 Disk drive unit and spherical aberration compensation method

Country Status (6)

Country Link
US (1) US7551526B2 (zh)
EP (1) EP1720162A3 (zh)
JP (1) JP2006286132A (zh)
KR (1) KR20060106882A (zh)
CN (1) CN100412965C (zh)
TW (1) TW200703301A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8081544B2 (en) 2008-01-15 2011-12-20 Mediatek, Inc. Method and apparatus for deciding spherical aberration compensation value

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101506880A (zh) * 2006-08-15 2009-08-12 皇家飞利浦电子股份有限公司 球面象差补偿调节
JP4724624B2 (ja) * 2006-08-29 2011-07-13 パイオニア株式会社 光ディスク装置
US7933182B2 (en) * 2006-12-13 2011-04-26 Canon Kabushiki Kaisha Optical information recording and reproducing apparatus that sets a movable range of an objective lens based on the type of recording medium
JP2008159137A (ja) * 2006-12-22 2008-07-10 Tdk Corp 光記録再生方法、光記録再生装置、光記録媒体
KR100882748B1 (ko) 2007-09-10 2009-02-09 도시바삼성스토리지테크놀러지코리아 주식회사 포커스 제어 방법 및 이를 이용한 광 디스크 드라이브
JP2009158067A (ja) * 2007-12-27 2009-07-16 Toshiba Corp 球面収差補正装置および球面収差補正方法
JP5463118B2 (ja) * 2009-10-23 2014-04-09 日立コンシューマエレクトロニクス株式会社 光ディスク装置
JP2011141915A (ja) * 2010-01-06 2011-07-21 Hitachi Consumer Electronics Co Ltd 光ディスク装置
JP2011154750A (ja) * 2010-01-27 2011-08-11 Hitachi-Lg Data Storage Inc 光ディスク装置、光ディスク装置の駆動方法
JP2011248978A (ja) * 2010-05-31 2011-12-08 Hitachi-Lg Data Storage Inc 光ディスク装置及び光ディスク判別方法。

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7286153B1 (en) * 1991-10-11 2007-10-23 Hitachi, Ltd. Three-dimensional recording and reproducing apparatus
US5625609A (en) * 1995-03-13 1997-04-29 International Business Machines Corporation Multiple data layer optical disk drive system with fixed aberration correction and optimum interlayer spacing
TW564404B (en) * 2000-09-06 2003-12-01 Matsushita Electric Ind Co Ltd Optical disk unit and information recording and reproducing method
JP3995993B2 (ja) * 2001-06-22 2007-10-24 パイオニア株式会社 光ピックアップのフォーカシング制御装置及び方法
JP4257049B2 (ja) * 2001-07-06 2009-04-22 パイオニア株式会社 多層ディスク記録再生装置およびフォーカスジャンプ方法
JP2003091851A (ja) * 2001-09-20 2003-03-28 Tdk Corp 光記録再生装置
JP2004039125A (ja) * 2002-07-04 2004-02-05 Sony Corp 光記録再生装置、焦点制御方法
JP3835402B2 (ja) * 2002-11-19 2006-10-18 株式会社日立製作所 多層光ディスクの情報再生方法および情報再生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8081544B2 (en) 2008-01-15 2011-12-20 Mediatek, Inc. Method and apparatus for deciding spherical aberration compensation value

Also Published As

Publication number Publication date
EP1720162A2 (en) 2006-11-08
TWI359419B (zh) 2012-03-01
US20060221782A1 (en) 2006-10-05
CN100412965C (zh) 2008-08-20
KR20060106882A (ko) 2006-10-12
EP1720162A3 (en) 2007-08-08
JP2006286132A (ja) 2006-10-19
CN1848259A (zh) 2006-10-18
US7551526B2 (en) 2009-06-23

Similar Documents

Publication Publication Date Title
TW200703301A (en) Disk drive unit and spherical aberration compensation method
US20060280082A1 (en) Disk discriminating method and optical disk apparatus
US6954417B2 (en) Optical disk device and information recording/reproducing method
US8130628B2 (en) Manufacturing method for optical recording medium, optical recording medium, optical information device, and information reproducing method
US8154961B2 (en) Optical disk apparatus and focus jump method for multilayer optical disk
JP4687699B2 (ja) 増幅回路及びこれを備える光ピックアップ
JP4783670B2 (ja) フォーカス外れ検出装置およびそれを用いた光ディスク装置
JPWO2008047741A1 (ja) 光学的情報記録再生装置、光学的情報記録再生方法及び制御回路
US7567489B2 (en) Light detector, optical pickup, and optical disc apparatus
US7366072B2 (en) Optical heads device and control method of optical head
US20070237054A1 (en) Aberration correcting device, program thereof and disc apparatus equipped with the device
KR200192776Y1 (ko) 광디스크의 트래킹 에러를 검출하기 위한 서보 장치
MY152676A (en) Multilayer optical disc and recording method therefor
WO2005043528A3 (en) Method and apparatus for measuring the depth of a data record layer in an information record medium
US8014240B2 (en) Optical disk device, method of controlling optical head, and control device for optical head
US8576683B2 (en) Disk decision method and optical disk drive using the disk decision method
US8208354B2 (en) Optical disc apparatus, driving method of optical disc apparatus
JP2006018873A (ja) 光ディスク装置
US20110170388A1 (en) Optical drive device and focus servo control method
KR100532473B1 (ko) 디스크 드라이브에서 레이어 점프 장치 및 방법
JP4687700B2 (ja) フォトダイオード用集積回路及びこれを備える光ピックアップ
US20110158065A1 (en) Optical Disk Drive and Method for Performing Layer Jumps
US8547812B2 (en) Optical disc device and method for setting playback power of optical disc device
US8125861B2 (en) Optical disk device
EP2398019B1 (en) Optical information reproducing device and optical information reproducing method

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees