ATE373304T1 - Optischer kopf zum abtasten eines aufzeichnungsträgers - Google Patents

Optischer kopf zum abtasten eines aufzeichnungsträgers

Info

Publication number
ATE373304T1
ATE373304T1 AT01974269T AT01974269T ATE373304T1 AT E373304 T1 ATE373304 T1 AT E373304T1 AT 01974269 T AT01974269 T AT 01974269T AT 01974269 T AT01974269 T AT 01974269T AT E373304 T1 ATE373304 T1 AT E373304T1
Authority
AT
Austria
Prior art keywords
radiation beam
scanning
numerical aperture
type
record carriers
Prior art date
Application number
AT01974269T
Other languages
English (en)
Inventor
Vries Jorrit De
Bernardus Hendriks
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 ATE373304T1 publication Critical patent/ATE373304T1/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
    • G11B7/12—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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • 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
    • G11B7/125—Optical 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
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B7/1367—Stepped phase plates
    • 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
    • G11B7/139—Numerical aperture control 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
    • G11B7/12—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
    • G11B7/13922—Means for controlling the beam wavefront, e.g. for correction of aberration passive
    • 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
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
    • 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
    • G11B2007/13727—Compound 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Common Mechanisms (AREA)
AT01974269T 2000-10-03 2001-09-20 Optischer kopf zum abtasten eines aufzeichnungsträgers ATE373304T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00203436 2000-10-03

Publications (1)

Publication Number Publication Date
ATE373304T1 true ATE373304T1 (de) 2007-09-15

Family

ID=8172100

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01974269T ATE373304T1 (de) 2000-10-03 2001-09-20 Optischer kopf zum abtasten eines aufzeichnungsträgers

Country Status (8)

Country Link
US (1) US6956807B2 (de)
EP (1) EP1327245B1 (de)
JP (1) JP2004511060A (de)
KR (1) KR100769959B1 (de)
CN (1) CN1242395C (de)
AT (1) ATE373304T1 (de)
DE (1) DE60130476T2 (de)
WO (1) WO2002029798A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7292517B2 (en) * 2001-04-05 2007-11-06 Koninklijke Philips Electronics N.V. Optical scanning device for use with multiple types of record carrier surfaces
JP2004252135A (ja) * 2002-08-28 2004-09-09 Konica Minolta Holdings Inc 光ピックアップ装置用の対物レンズ、光ピックアップ装置及び光情報記録再生装置
WO2005006320A1 (en) 2003-07-09 2005-01-20 Koninklijke Philips Electronics N.V. Optical arrangement
JP5007196B2 (ja) * 2007-10-22 2012-08-22 株式会社日立メディアエレクトロニクス 光ピックアップ装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69635559T2 (de) * 1995-06-05 2006-06-14 Nec Corp Optische Wiedergabekopfvorrichtung für verschiedene Plattentypen
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
JPH10334504A (ja) * 1997-05-29 1998-12-18 Nec Corp 光ヘッド装置
JPH11194207A (ja) * 1997-12-26 1999-07-21 Fuji Photo Optical Co Ltd 回折型フィルタ
TW479253B (en) * 1998-12-17 2002-03-11 Konishiroku Photo Ind Objective lens for correcting chromatic aberration for use in recording toor reproducing from optical information recording medium and optical pickup apparatus therewith
US6760295B1 (en) * 1999-01-08 2004-07-06 Pentax Corporation Optical pick-up
JP2001093179A (ja) * 1999-09-21 2001-04-06 Pioneer Electronic Corp 光ピックアップ
US6594222B2 (en) * 1999-12-28 2003-07-15 Pentax Corporation Objective lens for optical pick-up
TW490589B (en) * 2000-05-24 2002-06-11 Konishiroku Photo Ind Optical pickup apparatus, objective lens, apparatus for reproducing and/or recording optical information recording medium
JP4595184B2 (ja) * 2000-10-02 2010-12-08 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及び対物レンズ

Also Published As

Publication number Publication date
DE60130476T2 (de) 2008-06-12
KR100769959B1 (ko) 2007-10-25
JP2004511060A (ja) 2004-04-08
WO2002029798A1 (en) 2002-04-11
US6956807B2 (en) 2005-10-18
US20020110078A1 (en) 2002-08-15
CN1242395C (zh) 2006-02-15
DE60130476D1 (de) 2007-10-25
EP1327245B1 (de) 2007-09-12
CN1398398A (zh) 2003-02-19
EP1327245A1 (de) 2003-07-16
KR20020064916A (ko) 2002-08-10

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Legal Events

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