DE60226119D1 - Gerät mit optischem Lesekopf und optisches Element - Google Patents

Gerät mit optischem Lesekopf und optisches Element

Info

Publication number
DE60226119D1
DE60226119D1 DE60226119T DE60226119T DE60226119D1 DE 60226119 D1 DE60226119 D1 DE 60226119D1 DE 60226119 T DE60226119 T DE 60226119T DE 60226119 T DE60226119 T DE 60226119T DE 60226119 D1 DE60226119 D1 DE 60226119D1
Authority
DE
Germany
Prior art keywords
optical
read head
optical element
optical read
head
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
DE60226119T
Other languages
English (en)
Inventor
Kiyono Ikenaka
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 Opto Inc
Original Assignee
Konica Minolta Opto 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 Opto Inc filed Critical Konica Minolta Opto Inc
Application granted granted Critical
Publication of DE60226119D1 publication Critical patent/DE60226119D1/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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • 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
    • G11B7/1392—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)
DE60226119T 2001-12-21 2002-12-18 Gerät mit optischem Lesekopf und optisches Element Expired - Lifetime DE60226119D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001389980 2001-12-21

Publications (1)

Publication Number Publication Date
DE60226119D1 true DE60226119D1 (de) 2008-05-29

Family

ID=19188322

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60226119T Expired - Lifetime DE60226119D1 (de) 2001-12-21 2002-12-18 Gerät mit optischem Lesekopf und optisches Element

Country Status (6)

Country Link
US (1) US7190658B2 (de)
EP (1) EP1321932B1 (de)
KR (1) KR20030053010A (de)
CN (1) CN1281995C (de)
DE (1) DE60226119D1 (de)
TW (1) TWI252935B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2002086577A1 (ja) * 2001-04-17 2004-08-12 松下電器産業株式会社 対物レンズ、光ヘッド装置及び光情報記録再生装置
JP3864749B2 (ja) * 2001-10-11 2007-01-10 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光学系及び光ピックアップ装置の対物レンズ
JP2003344759A (ja) * 2002-05-30 2003-12-03 Fuji Photo Optical Co Ltd 光記録媒体用対物レンズおよびこれを用いた光ピックアップ装置
JP4706481B2 (ja) * 2003-12-25 2011-06-22 コニカミノルタオプト株式会社 光ピックアップ装置
WO2006048818A1 (en) * 2004-11-08 2006-05-11 Koninklijke Philips Electronics N.V. Wavefront aberration compensating objective lens
US20120300301A1 (en) * 2010-12-10 2012-11-29 Panasonic Corporation Diffraction-grating lens, and imaging optical system and imaging device using said diffraction-grating lens
CN109883996B (zh) * 2019-03-05 2021-06-29 中国计量大学 基于哈特曼光线追迹的非均匀介质场的测量方法
CN109883995B (zh) * 2019-03-05 2021-06-29 中国计量大学 基于哈特曼光线追迹的非均匀介质场的测量系统及其方法
CN109883994B (zh) * 2019-03-05 2021-06-29 中国计量大学 基于哈特曼光线追迹的非均匀介质场的测量方法
CN109883993B (zh) * 2019-03-05 2021-05-07 中国计量大学 基于哈特曼光线追迹的非均匀介质场的测量方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2532049B2 (ja) * 1983-06-30 1996-09-11 富士通株式会社 光ビ−ム走査装置
US4815058A (en) * 1985-10-21 1989-03-21 Hitachi, Ltd. Optical information processing apparatus
US5926450A (en) * 1995-03-15 1999-07-20 U.S. Philips Corporation Device for optically scanning record carriers of different thicknesses
US5757758A (en) * 1995-12-19 1998-05-26 Konica Corporation Optical pickup apparatus objective lens and converging optical system for optical pickup and optical disk apparatus
US5838480A (en) * 1996-04-29 1998-11-17 The University Of Rochester Optical scanning system with diffractive optics
JP3827860B2 (ja) * 1998-03-31 2006-09-27 パイオニア株式会社 対物レンズ及び光ピックアップ装置
US6088322A (en) 1998-05-07 2000-07-11 Broome; Barry G. Single objective lens for use with CD or DVD optical disks
ID28515A (id) * 1998-06-26 2001-05-31 Asahi Optical Co Ltd Lensa objektif untuk pemungut optik
JP3906958B2 (ja) * 1999-08-11 2007-04-18 ソニー株式会社 光ディスク装置及び光ディスク装置のフォーカス制御方法
US6930973B2 (en) 1999-12-24 2005-08-16 Koninklijke Phillips Electronics N.V. Optical element
US6594222B2 (en) * 1999-12-28 2003-07-15 Pentax Corporation Objective lens for optical pick-up

Also Published As

Publication number Publication date
EP1321932B1 (de) 2008-04-16
US7190658B2 (en) 2007-03-13
CN1428623A (zh) 2003-07-09
TW200301368A (en) 2003-07-01
CN1281995C (zh) 2006-10-25
US20030133195A1 (en) 2003-07-17
EP1321932A2 (de) 2003-06-25
TWI252935B (en) 2006-04-11
KR20030053010A (ko) 2003-06-27
EP1321932A3 (de) 2005-07-06

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Legal Events

Date Code Title Description
8332 No legal effect for de