DE60039972D1 - Optischer abtastkopf - Google Patents

Optischer abtastkopf

Info

Publication number
DE60039972D1
DE60039972D1 DE60039972T DE60039972T DE60039972D1 DE 60039972 D1 DE60039972 D1 DE 60039972D1 DE 60039972 T DE60039972 T DE 60039972T DE 60039972 T DE60039972 T DE 60039972T DE 60039972 D1 DE60039972 D1 DE 60039972D1
Authority
DE
Germany
Prior art keywords
optical scanning
scanning head
head
optical
scanning
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
DE60039972T
Other languages
English (en)
Inventor
Jeroen Wals
Sjoerd Stallinga
Joris J Vrehen
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke 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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of DE60039972D1 publication Critical patent/DE60039972D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/1392—Means for controlling the beam wavefront, e.g. for correction of aberration
    • 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
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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
    • G11B7/095—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—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 specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
DE60039972T 1999-12-24 2000-12-20 Optischer abtastkopf Expired - Lifetime DE60039972D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99204523 1999-12-24
PCT/EP2000/012979 WO2001048744A1 (en) 1999-12-24 2000-12-20 Optical scanning head

Publications (1)

Publication Number Publication Date
DE60039972D1 true DE60039972D1 (de) 2008-10-02

Family

ID=8241080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60039972T Expired - Lifetime DE60039972D1 (de) 1999-12-24 2000-12-20 Optischer abtastkopf

Country Status (6)

Country Link
US (1) US6586717B2 (de)
EP (1) EP1163670B1 (de)
JP (1) JP2003518702A (de)
KR (1) KR100766801B1 (de)
DE (1) DE60039972D1 (de)
WO (1) WO2001048744A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100438274B1 (ko) * 2001-09-12 2004-07-02 엘지전자 주식회사 Ｈｄ／ｄｖｄ 호환 광픽업 장치
CN1605100A (zh) * 2001-12-19 2005-04-06 皇家飞利浦电子股份有限公司 光学扫描装置
CN1294579C (zh) * 2002-06-25 2007-01-10 皇家飞利浦电子股份有限公司 容许倾斜的物镜系统的光学扫描装置
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
EP1730733A1 (de) * 2004-03-22 2006-12-13 Koninklijke Philips Electronics N.V. Mehrschichtige einheit mit variablem brechungsindex
JP4215011B2 (ja) 2004-09-27 2009-01-28 ソニー株式会社 光ピックアップ及びこれを用いた光ディスク装置
KR100736683B1 (ko) * 2005-06-17 2007-07-10 김강희 뻥튀기 제조장치
US8377050B2 (en) * 2007-06-08 2013-02-19 Boston Scientific Scimed, Inc. Cryo-applicator cross-section configuration

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5173598A (en) * 1991-05-10 1992-12-22 U.S. Philips Corporation Optical scanning beam position control system which is free of modulation by tracking error
EP0745980B1 (de) 1991-11-20 1999-06-16 Sony Corporation Optische Abtasteinrichtung
JPH07140381A (ja) * 1993-11-18 1995-06-02 Sony Corp コマ収差補正方法
JP3443226B2 (ja) * 1995-08-31 2003-09-02 パイオニア株式会社 光ピックアップ
JP3795998B2 (ja) * 1996-04-30 2006-07-12 パイオニア株式会社 波面収差補正ユニット、波面収差補正装置及び光ピックアップ
JPH1031200A (ja) * 1996-07-17 1998-02-03 Seiko Epson Corp 液晶駆動用分割電圧発生器
JP3411494B2 (ja) * 1997-02-26 2003-06-03 シャープ株式会社 マトリクス型表示装置の駆動用電圧生成回路
JP3488056B2 (ja) * 1997-10-03 2004-01-19 パイオニア株式会社 収差補正装置及び情報再生装置
JPH11110769A (ja) * 1997-10-03 1999-04-23 Pioneer Electron Corp 収差補正装置及び情報再生装置
JPH11259892A (ja) * 1998-03-12 1999-09-24 Pioneer Electron Corp 光ピックアップ
US5995292A (en) * 1998-06-16 1999-11-30 Siros Technologies, Inc. Apparatus for adjustable spherical aberration correction
JP3519618B2 (ja) * 1998-10-29 2004-04-19 パイオニア株式会社 収差補償装置、光ピックアップ、情報再生装置及び情報記録装置
JP3640059B2 (ja) * 1999-02-12 2005-04-20 パイオニア株式会社 収差補正装置及びこれを用いた光学装置
JP3659870B2 (ja) * 1999-06-22 2005-06-15 松下電器産業株式会社 液晶駆動装置、光ヘッドおよび光ディスク装置

Also Published As

Publication number Publication date
US6586717B2 (en) 2003-07-01
WO2001048744A1 (en) 2001-07-05
EP1163670B1 (de) 2008-08-20
JP2003518702A (ja) 2003-06-10
KR100766801B1 (ko) 2007-10-17
US20020175266A1 (en) 2002-11-28
KR20020000769A (ko) 2002-01-05
EP1163670A1 (de) 2001-12-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition