WO2008105265A1 - 回折光学素子及び光ピックアップ装置 - Google Patents

回折光学素子及び光ピックアップ装置 Download PDF

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Publication number
WO2008105265A1
WO2008105265A1 PCT/JP2008/052734 JP2008052734W WO2008105265A1 WO 2008105265 A1 WO2008105265 A1 WO 2008105265A1 JP 2008052734 W JP2008052734 W JP 2008052734W WO 2008105265 A1 WO2008105265 A1 WO 2008105265A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
pickup device
optical element
laser beams
diffraction
Prior art date
Application number
PCT/JP2008/052734
Other languages
English (en)
French (fr)
Inventor
Masahisa Shinoda
Daisuke Matsubara
Kenya Nakai
Hironori Nakahara
Original Assignee
Mitsubishi Electric Corporation
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 Mitsubishi Electric Corporation filed Critical Mitsubishi Electric Corporation
Priority to CN200880005673.9A priority Critical patent/CN101617364B/zh
Priority to JP2009501186A priority patent/JP4990351B2/ja
Priority to US12/513,616 priority patent/US8134908B2/en
Publication of WO2008105265A1 publication Critical patent/WO2008105265A1/ja

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0808—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more diffracting elements
    • 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
    • G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1842—Gratings for image generation
    • 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
    • G11B7/1381—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

　３種類のレーザ光の回折光を単一の光検知器に効率良く入射させることができ、この光検知器の検出信号に基づいて適切な焦点制御を行うことができる、構成が簡素化された光ピックアップ装置及びこれに用いることができる回折光学素子であって、光ピックアップ装置は、３種類のレーザ光を出射できるレーザ光源１０と、光ディスク３１からの反射レーザ光を回折させる回折光学素子４２と、回折光学素子４２から出射される回折光を検出する１台の光検知器４３とを有する。回折光学素子４２は、３種類のレーザ光のうちの波長の近い（波長の差が小さい）２種類のレーザ光のそれぞれから生成される回折光は０次光が最大成分となり、残りの１種類のレーザから生成される回折光は＋１次光若しくは－１次光が最大成分となるように作製された光学部材によって構成されている。
PCT/JP2008/052734 2007-02-26 2008-02-19 回折光学素子及び光ピックアップ装置 WO2008105265A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200880005673.9A CN101617364B (zh) 2007-02-26 2008-02-19 光拾取装置
JP2009501186A JP4990351B2 (ja) 2007-02-26 2008-02-19 光ピックアップ装置
US12/513,616 US8134908B2 (en) 2007-02-26 2008-02-19 Diffractive optical element and optical pickup

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007044942 2007-02-26
JP2007-044942 2007-02-26

Publications (1)

Publication Number Publication Date
WO2008105265A1 true WO2008105265A1 (ja) 2008-09-04

Family

ID=39721101

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052734 WO2008105265A1 (ja) 2007-02-26 2008-02-19 回折光学素子及び光ピックアップ装置

Country Status (4)

Country Link
US (1) US8134908B2 (ja)
JP (1) JP4990351B2 (ja)
CN (1) CN101617364B (ja)
WO (1) WO2008105265A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114879358A (zh) * 2016-10-26 2022-08-09 奇跃公司 用于增强现实系统的耦出光栅
WO2024121955A1 (ja) * 2022-12-06 2024-06-13 ギガフォトン株式会社 レーザ加工システム、レーザ加工方法、及び電子デバイスの製造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012104179A (ja) * 2010-11-09 2012-05-31 Funai Electric Co Ltd 光ピックアップ
EP2943823A1 (en) * 2013-01-08 2015-11-18 BAE Systems PLC Diffraction gratings and the manufacture thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005327403A (ja) * 2004-05-14 2005-11-24 Sony Corp 光ピックアップ及び光学記録媒体記録再生装置
JP2006134551A (ja) * 2004-11-05 2006-05-25 Samsung Electro Mech Co Ltd 回折光学素子およびこれを用いる光ピックアップ装置
JP2006134366A (ja) * 2004-09-15 2006-05-25 Konica Minolta Opto Inc 光ピックアップ装置及び対物光学素子
JP2006244606A (ja) * 2005-03-03 2006-09-14 Ricoh Co Ltd 対物レンズ、集光光学ユニット及び光ピックアップ並びに光ディスク装置
JP2006278576A (ja) * 2005-03-28 2006-10-12 Sanyo Electric Co Ltd 半導体レーザ装置、半導体レーザ装置の製造方法および光ピックアップ装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002311219A (ja) 2001-04-18 2002-10-23 Alps Electric Co Ltd 光学部材及びこれを用いた光ピックアップ
CN1299284C (zh) * 2002-09-24 2007-02-07 皇家飞利浦电子股份有限公司 光学扫描装置
JP2004213766A (ja) * 2002-12-27 2004-07-29 Toshiba Corp 光ヘッドおよび光ディスク装置
WO2005101393A1 (ja) * 2004-04-13 2005-10-27 Konica Minolta Opto, Inc. 光ピックアップ装置用の対物光学系、光ピックアップ装置、光情報記録媒体のドライブ装置、集光レンズ、及び光路合成素子
JP2005339771A (ja) 2004-04-27 2005-12-08 Matsushita Electric Ind Co Ltd 光ピックアップ装置
JP2006114165A (ja) * 2004-10-18 2006-04-27 Hitachi Media Electoronics Co Ltd 光情報再生装置
US7609606B2 (en) * 2004-12-28 2009-10-27 Sanyo Electric Co., Ltd. Optical pickup device
JP2006209939A (ja) * 2004-12-28 2006-08-10 Sanyo Electric Co Ltd 光ピックアップ装置
CN101297362B (zh) * 2005-11-01 2011-12-14 三菱电机株式会社 光拾取装置和光盘装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005327403A (ja) * 2004-05-14 2005-11-24 Sony Corp 光ピックアップ及び光学記録媒体記録再生装置
JP2006134366A (ja) * 2004-09-15 2006-05-25 Konica Minolta Opto Inc 光ピックアップ装置及び対物光学素子
JP2006134551A (ja) * 2004-11-05 2006-05-25 Samsung Electro Mech Co Ltd 回折光学素子およびこれを用いる光ピックアップ装置
JP2006244606A (ja) * 2005-03-03 2006-09-14 Ricoh Co Ltd 対物レンズ、集光光学ユニット及び光ピックアップ並びに光ディスク装置
JP2006278576A (ja) * 2005-03-28 2006-10-12 Sanyo Electric Co Ltd 半導体レーザ装置、半導体レーザ装置の製造方法および光ピックアップ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114879358A (zh) * 2016-10-26 2022-08-09 奇跃公司 用于增强现实系统的耦出光栅
WO2024121955A1 (ja) * 2022-12-06 2024-06-13 ギガフォトン株式会社 レーザ加工システム、レーザ加工方法、及び電子デバイスの製造方法

Also Published As

Publication number Publication date
JPWO2008105265A1 (ja) 2010-06-03
CN101617364B (zh) 2013-03-06
CN101617364A (zh) 2009-12-30
JP4990351B2 (ja) 2012-08-01
US20100097917A1 (en) 2010-04-22
US8134908B2 (en) 2012-03-13

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