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WO2008117663A1 - 光ピックアップ装置及び光ピックアップ装置用の対物光学素子 - Google Patents

光ピックアップ装置及び光ピックアップ装置用の対物光学素子 Download PDF

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Publication number
WO2008117663A1
WO2008117663A1 PCT/JP2008/054477 JP2008054477W WO2008117663A1 WO 2008117663 A1 WO2008117663 A1 WO 2008117663A1 JP 2008054477 W JP2008054477 W JP 2008054477W WO 2008117663 A1 WO2008117663 A1 WO 2008117663A1
Authority
WO
WIPO (PCT)
Prior art keywords
pickup device
optical pickup
objective
optical
optical element
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.)
Ceased
Application number
PCT/JP2008/054477
Other languages
English (en)
French (fr)
Inventor
Eiji Nomura
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
Priority to CN2008800099734A priority Critical patent/CN101647066B/zh
Priority to JP2008529805A priority patent/JP4193915B2/ja
Publication of WO2008117663A1 publication Critical patent/WO2008117663A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4238—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application in optical recording or readout devices
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction 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
    • G11B7/1392—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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Lenses (AREA)

Abstract

　本発明は良好な波長特性を有し、かつ軸上色収差を補正した対物光学素子、及びこれを用いて高密度光ディスクに対して情報の記録及び／又は再生を行うことができる光ピックアップ装置を提供する。 　ＮＰＳ構造を有するプラスチック製の単玉非球面レンズでは温度特性を良好にしたとき、波長特性が大きく劣化してしまう。また、ＮＰＳ構造を有しても、対物レンズ単体では軸上色収差を補正することができないという課題がある。そこで、ＮＰＳ構造と回折構造とを重ね合わせた光路差付与構造を単玉のプラスチックレンズに設ける。
PCT/JP2008/054477 2007-03-28 2008-03-12 光ピックアップ装置及び光ピックアップ装置用の対物光学素子 Ceased WO2008117663A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008800099734A CN101647066B (zh) 2007-03-28 2008-03-12 光拾取装置以及光拾取装置用物镜光学元件
JP2008529805A JP4193915B2 (ja) 2007-03-28 2008-03-12 光ピックアップ装置及び光ピックアップ装置用の対物光学素子

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007085091 2007-03-28
JP2007-085091 2007-03-28

Publications (1)

Publication Number Publication Date
WO2008117663A1 true WO2008117663A1 (ja) 2008-10-02

Family

ID=39788399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/054477 Ceased WO2008117663A1 (ja) 2007-03-28 2008-03-12 光ピックアップ装置及び光ピックアップ装置用の対物光学素子

Country Status (3)

Country Link
JP (2) JP4193915B2 (ja)
CN (1) CN101647066B (ja)
WO (1) WO2008117663A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010080040A (ja) * 2008-04-10 2010-04-08 Hitachi Maxell Ltd 光ピックアップ対物レンズ、光ピックアップ装置及び光ディスク装置
CN102498517A (zh) * 2009-09-18 2012-06-13 柯尼卡美能达精密光学株式会社 物镜、光拾取装置及光信息记录再生装置
JP2013109825A (ja) * 2008-04-10 2013-06-06 Hitachi Maxell Ltd 光ピックアップ対物レンズ、光ピックアップ装置及び光ディスク装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8121012B2 (en) 2008-11-19 2012-02-21 Hoya Corporation Objective lens and optical information recording/reproducing apparatus
CN104328579A (zh) * 2014-08-27 2015-02-04 安徽丹凤电子材料股份有限公司 一种玻璃纤维布的制备工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005006322A1 (ja) * 2003-07-11 2005-01-20 Konica Minolta Opto, Inc. 光ピックアップ装置、光ピックアップ装置に用いられる光学素子、及び光学素子の製造方法
JP2005209321A (ja) * 2003-06-18 2005-08-04 Konica Minolta Opto Inc 光ピックアップ装置用の光学素子、光ピックアップ装置用の収差補正素子、光ピックアップ装置用の集光素子、対物光学系、光ピックアップ装置、及び光情報記録再生装置
JP2006092720A (ja) * 2004-08-25 2006-04-06 Konica Minolta Opto Inc 対物光学素子、光ピックアップ装置及び光ディスクドライブ装置
WO2006095583A1 (ja) * 2005-03-08 2006-09-14 Konica Minolta Opto, Inc. 光ピックアップ装置及び、対物光学ユニット及び対物光学系の設計方法
JP2007035240A (ja) * 2005-06-20 2007-02-08 Konica Minolta Opto Inc 光ピックアップ装置用対物光学系及び光ピックアップ装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4262978B2 (ja) * 2000-11-15 2009-05-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 光ヘッド
JP4565558B2 (ja) * 2005-05-30 2010-10-20 株式会社リコー 対物レンズ、光ピックアップ装置、光ディスク装置及び情報処理装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005209321A (ja) * 2003-06-18 2005-08-04 Konica Minolta Opto Inc 光ピックアップ装置用の光学素子、光ピックアップ装置用の収差補正素子、光ピックアップ装置用の集光素子、対物光学系、光ピックアップ装置、及び光情報記録再生装置
WO2005006322A1 (ja) * 2003-07-11 2005-01-20 Konica Minolta Opto, Inc. 光ピックアップ装置、光ピックアップ装置に用いられる光学素子、及び光学素子の製造方法
JP2006092720A (ja) * 2004-08-25 2006-04-06 Konica Minolta Opto Inc 対物光学素子、光ピックアップ装置及び光ディスクドライブ装置
WO2006095583A1 (ja) * 2005-03-08 2006-09-14 Konica Minolta Opto, Inc. 光ピックアップ装置及び、対物光学ユニット及び対物光学系の設計方法
JP2007035240A (ja) * 2005-06-20 2007-02-08 Konica Minolta Opto Inc 光ピックアップ装置用対物光学系及び光ピックアップ装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010080040A (ja) * 2008-04-10 2010-04-08 Hitachi Maxell Ltd 光ピックアップ対物レンズ、光ピックアップ装置及び光ディスク装置
JP2013109825A (ja) * 2008-04-10 2013-06-06 Hitachi Maxell Ltd 光ピックアップ対物レンズ、光ピックアップ装置及び光ディスク装置
CN102498517A (zh) * 2009-09-18 2012-06-13 柯尼卡美能达精密光学株式会社 物镜、光拾取装置及光信息记录再生装置

Also Published As

Publication number Publication date
JP2008269786A (ja) 2008-11-06
CN101647066B (zh) 2012-01-11
JPWO2008117663A1 (ja) 2010-07-15
CN101647066A (zh) 2010-02-10
JP4193915B2 (ja) 2008-12-10
JP5013117B2 (ja) 2012-08-29

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