DE69720641D1 - Verfahren zur Aufzeichnung und Wiedergabe eines optischen Aufzeichnungsträgers, Objektivlinse sowie Herstellungsmethode der Objektivlinse - Google Patents

Verfahren zur Aufzeichnung und Wiedergabe eines optischen Aufzeichnungsträgers, Objektivlinse sowie Herstellungsmethode der Objektivlinse

Info

Publication number
DE69720641D1
DE69720641D1 DE69720641T DE69720641T DE69720641D1 DE 69720641 D1 DE69720641 D1 DE 69720641D1 DE 69720641 T DE69720641 T DE 69720641T DE 69720641 T DE69720641 T DE 69720641T DE 69720641 D1 DE69720641 D1 DE 69720641D1
Authority
DE
Germany
Prior art keywords
objective lens
reproducing
producing
recording medium
optical recording
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
DE69720641T
Other languages
English (en)
Other versions
DE69720641T2 (de
Inventor
Norikazu Arai
Hiroyuki Yamazaki
Shinichiro Saito
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Application granted granted Critical
Publication of DE69720641D1 publication Critical patent/DE69720641D1/de
Publication of DE69720641T2 publication Critical patent/DE69720641T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/125—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal lenses
    • 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
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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)
  • Lenses (AREA)
DE69720641T 1996-10-23 1997-10-17 Verfahren zur Aufzeichnung und Wiedergabe eines optischen Aufzeichnungsträgers, Objektivlinse sowie Herstellungsmethode der Objektivlinse Expired - Fee Related DE69720641T2 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP28075096 1996-10-23
JP28075096 1996-10-23
JP4222297 1997-02-26
JP4222297 1997-02-26
JP19707697 1997-07-23
JP19707697 1997-07-23

Publications (2)

Publication Number Publication Date
DE69720641D1 true DE69720641D1 (de) 2003-05-15
DE69720641T2 DE69720641T2 (de) 2004-04-08

Family

ID=27291115

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69720641T Expired - Fee Related DE69720641T2 (de) 1996-10-23 1997-10-17 Verfahren zur Aufzeichnung und Wiedergabe eines optischen Aufzeichnungsträgers, Objektivlinse sowie Herstellungsmethode der Objektivlinse

Country Status (4)

Country Link
US (4) US6061324A (de)
EP (2) EP0838812B1 (de)
KR (1) KR100511230B1 (de)
DE (1) DE69720641T2 (de)

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US6091691A (en) * 1997-02-13 2000-07-18 Samsung Electronics Co., Ltd. Optical pickup having an objective lens compatible with a plurality of optical disk formats
US6639889B1 (en) 1997-02-13 2003-10-28 Samsung Electronics Co., Ltd. Recording/reproducing apparatus including an optical pickup having an objective lens compatible with a plurality of optical disk formats
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US6304540B1 (en) 1998-03-30 2001-10-16 Samsung Electronics Co., Ltd. Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
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US6088322A (en) * 1998-05-07 2000-07-11 Broome; Barry G. Single objective lens for use with CD or DVD optical disks
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KR100747673B1 (ko) * 1999-10-06 2007-08-08 소니 가부시끼 가이샤 대물렌즈 및 광 픽업 장치
DE60038809D1 (de) 1999-10-06 2008-06-19 Matsushita Electric Ind Co Ltd Optischer kopf, optisches informationsaufzeichnungs-/wiedergabegerät sowie optischesinformationsaufzeichnungs-/wiedergabeverfahren
CN1221956C (zh) * 1999-11-18 2005-10-05 柯尼卡株式会社 光拾取装置及物镜
EP1168317A4 (de) * 1999-12-10 2006-06-21 Konica Minolta Opto Inc Objektivlinse und optische abtastvorrichtung
KR100692160B1 (ko) 2000-03-31 2007-03-12 아사히 가라스 가부시키가이샤 대물렌즈 및 광학장치
US7116627B2 (en) 2000-07-08 2006-10-03 Samsung Electronics Co., Ltd. Compatible optical pickup device using a single light source
TW513718B (en) * 2000-07-08 2002-12-11 Samsung Electronics Co Ltd Compatible optical pickup device adopting single light source
JP4903300B2 (ja) * 2000-07-31 2012-03-28 旭硝子株式会社 光学装置
JP4465838B2 (ja) * 2000-09-01 2010-05-26 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
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JP4259067B2 (ja) * 2002-02-22 2009-04-30 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の対物光学素子、光ピックアップ装置及び光情報記録再生装置
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Also Published As

Publication number Publication date
EP1103958A2 (de) 2001-05-30
US20010017830A1 (en) 2001-08-30
US6118749A (en) 2000-09-12
EP1103958A3 (de) 2004-10-06
DE69720641T2 (de) 2004-04-08
EP0838812A2 (de) 1998-04-29
KR100511230B1 (ko) 2005-08-31
US6061324A (en) 2000-05-09
EP0838812A3 (de) 1998-09-02
US6400672B2 (en) 2002-06-04
EP0838812B1 (de) 2003-04-09
US6243349B1 (en) 2001-06-05

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