ATE396478T1 - Luftspalt-servo für die optische aufzeichnung - Google Patents

Luftspalt-servo für die optische aufzeichnung

Info

Publication number
ATE396478T1
ATE396478T1 AT05718639T AT05718639T ATE396478T1 AT E396478 T1 ATE396478 T1 AT E396478T1 AT 05718639 T AT05718639 T AT 05718639T AT 05718639 T AT05718639 T AT 05718639T AT E396478 T1 ATE396478 T1 AT E396478T1
Authority
AT
Austria
Prior art keywords
lens
air gap
near field
approach
optical recording
Prior art date
Application number
AT05718639T
Other languages
English (en)
Inventor
Juil Lee
Ferry Zijp
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Application granted granted Critical
Publication of ATE396478T1 publication Critical patent/ATE396478T1/de

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
    • G11B7/085—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
    • G11B7/085—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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08511—Methods for track change, selection or preliminary positioning by moving the head with focus pull-in 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
    • G11B7/08—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
    • G11B7/1387—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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
AT05718639T 2004-04-16 2005-04-06 Luftspalt-servo für die optische aufzeichnung ATE396478T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04101585 2004-04-16
EP04104091 2004-08-26

Publications (1)

Publication Number Publication Date
ATE396478T1 true ATE396478T1 (de) 2008-06-15

Family

ID=34963007

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05718639T ATE396478T1 (de) 2004-04-16 2005-04-06 Luftspalt-servo für die optische aufzeichnung

Country Status (8)

Country Link
US (1) US20080267036A1 (de)
EP (1) EP1741097B1 (de)
JP (1) JP2007533061A (de)
KR (1) KR20070012671A (de)
AT (1) ATE396478T1 (de)
DE (1) DE602005007007D1 (de)
TW (1) TW200539161A (de)
WO (1) WO2005101391A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080304395A1 (en) * 2005-12-06 2008-12-11 Koninklijke Philips Electronics, N.V. Air Gap Servo For Optical Recording
KR20090005620A (ko) * 2007-07-09 2009-01-14 삼성전자주식회사 근접장 광 디스크 장치 및 포커스 풀인 방법
KR101346772B1 (ko) * 2007-09-05 2013-12-31 연세대학교 산학협력단 광 디스크 장치 및 그 구동방법
KR20090024967A (ko) * 2007-09-05 2009-03-10 삼성전자주식회사 광 디스크 장치 및 그 구동방법
JP2009158007A (ja) * 2007-12-26 2009-07-16 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制御方法
KR100958588B1 (ko) * 2008-05-22 2010-05-18 삼성전자주식회사 근접장 광디스크 구동기에서 갭 풀인 방법 및 그와 같은기능을 갖는 광디스크 구동 장치
JP2010135029A (ja) * 2008-12-05 2010-06-17 Sony Corp 光ディスク装置及び光ディスク駆動制御方法
CN113296422A (zh) * 2021-04-25 2021-08-24 上海航天控制技术研究所 一种运载火箭半实物仿真试验伺服***动态特性测试方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9001954D0 (en) * 1990-01-29 1990-03-28 Smiths Industries Plc Radar apparatus
US5456341A (en) * 1993-04-23 1995-10-10 Moog Inc. Method and apparatus for actively adjusting and controlling a resonant mass-spring system
US5696647A (en) * 1994-03-28 1997-12-09 Seagate Technology, Inc. Method for carrying out seeks in a hard disc drive to limit the generation of acoustic noise including using a slew rate limit
JP3833448B2 (ja) * 2000-07-05 2006-10-11 株式会社リコー 光ピックアップ方法および装置および光情報処理装置
WO2003021583A1 (en) * 2001-08-31 2003-03-13 Sony Corporation Optical pickup device and recording/reproducing device
JP4228666B2 (ja) * 2002-11-25 2009-02-25 ソニー株式会社 光学ピックアップ装置、記録再生装置及びギャップ検出方法

Also Published As

Publication number Publication date
JP2007533061A (ja) 2007-11-15
WO2005101391A1 (en) 2005-10-27
EP1741097B1 (de) 2008-05-21
US20080267036A1 (en) 2008-10-30
KR20070012671A (ko) 2007-01-26
EP1741097A1 (de) 2007-01-10
TW200539161A (en) 2005-12-01
DE602005007007D1 (de) 2008-07-03

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Legal Events

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