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WO2008146675A1 - 光ピックアップ装置用の対物光学素子及び光ピックアップ装置 - Google Patents

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

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Publication number
WO2008146675A1
WO2008146675A1 PCT/JP2008/059337 JP2008059337W WO2008146675A1 WO 2008146675 A1 WO2008146675 A1 WO 2008146675A1 JP 2008059337 W JP2008059337 W JP 2008059337W WO 2008146675 A1 WO2008146675 A1 WO 2008146675A1
Authority
WO
WIPO (PCT)
Prior art keywords
pickup device
function
optical pickup
optical
wavelength
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/JP2008/059337
Other languages
English (en)
French (fr)
Inventor
Kentarou Nakamura
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 JP2009516264A priority Critical patent/JPWO2008146675A1/ja
Priority to CN2008800174646A priority patent/CN101681645B/zh
Publication of WO2008146675A1 publication Critical patent/WO2008146675A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)

Abstract

　低コストでありながら異なる光情報記録媒体に対して適切に情報の記録及び／又は再生を行える光ピックアップ装置用の対物光学素子を提供するために、光路差付与構造において、利用する回折光の次数が（ｒ、ｓ、ｔ）＝（１０、６、５）又は（２、１、１）である場合、中央領域を通過する３種類（λ１、λ２、λ３）の波長の光束のいずれに対しても、光の利用効率を高く維持することができ、互換機能と、環境温度が変化した場合に球面収差の劣化を抑える機能とのバランスを確保することができる。又、利用する回折光の次数が（ｕ、ｖ）＝（１０、６）、（５、３）又は（２、１）である場合、中間領域を通過する２種類（λ１、λ２）の波長の光束のいずれに対しても、光の利用効率を高く維持することができ、互換機能と、環境温度が変化した場合に球面収差の劣化を抑える機能とのバランスを確保することができる。
PCT/JP2008/059337 2007-05-31 2008-05-21 光ピックアップ装置用の対物光学素子及び光ピックアップ装置 Ceased WO2008146675A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009516264A JPWO2008146675A1 (ja) 2007-05-31 2008-05-21 光ピックアップ装置用の対物光学素子及び光ピックアップ装置
CN2008800174646A CN101681645B (zh) 2007-05-31 2008-05-21 光拾取装置用物镜光学元件及光拾取装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007145398 2007-05-31
JP2007-145398 2007-05-31

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/073,570 Continuation US8674552B2 (en) 2008-09-29 2011-03-28 Contactless power reception circuit and contactless power transmission system

Publications (1)

Publication Number Publication Date
WO2008146675A1 true WO2008146675A1 (ja) 2008-12-04

Family

ID=40074933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/059337 Ceased WO2008146675A1 (ja) 2007-05-31 2008-05-21 光ピックアップ装置用の対物光学素子及び光ピックアップ装置

Country Status (3)

Country Link
JP (1) JPWO2008146675A1 (ja)
CN (1) CN101681645B (ja)
WO (1) WO2008146675A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011028821A (ja) * 2009-07-29 2011-02-10 Ricoh Co Ltd 収差補正素子とこれを備えたアクチュエータ、光ピックアップ装置、光情報処理装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112198577B (zh) * 2019-10-23 2022-04-26 东莞东阳光医疗智能器件研发有限公司 眼科透镜

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005032410A (ja) * 2003-06-17 2005-02-03 Pentax Corp 光ピックアップ用対物レンズおよび光ピックアップ装置
JP2005115152A (ja) * 2003-10-09 2005-04-28 Sankyo Seiki Mfg Co Ltd レンズ、および光ヘッド装置
WO2005076266A1 (ja) * 2004-02-09 2005-08-18 Pioneer Corporation 光学素子、光ピックアップ及び情報記録再生装置
WO2005117002A1 (ja) * 2004-05-27 2005-12-08 Konica Minolta Opto, Inc. 対物光学系、光ピックアップ装置、及び光ディスクドライブ装置
JP2005353261A (ja) * 2004-05-10 2005-12-22 Konica Minolta Opto Inc 光ピックアップ装置
WO2006040902A1 (ja) * 2004-10-08 2006-04-20 Pioneer Corporation 回折光学素子、対物レンズモジュール、光ピックアップ及び光情報記録再生装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060047697A (ko) * 2004-05-10 2006-05-18 코니카 미놀타 옵토 인코포레이티드 광픽업 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005032410A (ja) * 2003-06-17 2005-02-03 Pentax Corp 光ピックアップ用対物レンズおよび光ピックアップ装置
JP2005115152A (ja) * 2003-10-09 2005-04-28 Sankyo Seiki Mfg Co Ltd レンズ、および光ヘッド装置
WO2005076266A1 (ja) * 2004-02-09 2005-08-18 Pioneer Corporation 光学素子、光ピックアップ及び情報記録再生装置
JP2005353261A (ja) * 2004-05-10 2005-12-22 Konica Minolta Opto Inc 光ピックアップ装置
WO2005117002A1 (ja) * 2004-05-27 2005-12-08 Konica Minolta Opto, Inc. 対物光学系、光ピックアップ装置、及び光ディスクドライブ装置
WO2006040902A1 (ja) * 2004-10-08 2006-04-20 Pioneer Corporation 回折光学素子、対物レンズモジュール、光ピックアップ及び光情報記録再生装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011028821A (ja) * 2009-07-29 2011-02-10 Ricoh Co Ltd 収差補正素子とこれを備えたアクチュエータ、光ピックアップ装置、光情報処理装置

Also Published As

Publication number Publication date
CN101681645B (zh) 2011-11-23
CN101681645A (zh) 2010-03-24
JPWO2008146675A1 (ja) 2010-08-19

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