JP4610118B2 - 光ヘッド用対物レンズ - Google Patents

光ヘッド用対物レンズ Download PDF

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Publication number
JP4610118B2
JP4610118B2 JP2001098488A JP2001098488A JP4610118B2 JP 4610118 B2 JP4610118 B2 JP 4610118B2 JP 2001098488 A JP2001098488 A JP 2001098488A JP 2001098488 A JP2001098488 A JP 2001098488A JP 4610118 B2 JP4610118 B2 JP 4610118B2
Authority
JP
Japan
Prior art keywords
dvd
wavelength
lens
objective lens
light
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
JP2001098488A
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English (en)
Japanese (ja)
Other versions
JP2002298422A5 (enExample
JP2002298422A (ja
Inventor
修一 竹内
晃一 丸山
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.)
Hoya Corp
Original Assignee
Hoya Corp
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 Hoya Corp filed Critical Hoya Corp
Priority to JP2001098488A priority Critical patent/JP4610118B2/ja
Priority to US10/107,133 priority patent/US6807019B2/en
Publication of JP2002298422A publication Critical patent/JP2002298422A/ja
Publication of JP2002298422A5 publication Critical patent/JP2002298422A5/ja
Application granted granted Critical
Publication of JP4610118B2 publication Critical patent/JP4610118B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G11B7/1392—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1876—Diffractive Fresnel lenses; Zone plates; Kinoforms
    • G02B5/189—Structurally combined with optical elements not having diffractive power
    • G02B5/1895—Structurally combined with optical elements not having diffractive power such optical elements having dioptric power
    • 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
    • G11B7/1372—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
    • 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)
  • Lenses (AREA)
  • Optical Head (AREA)
JP2001098488A 2001-03-30 2001-03-30 光ヘッド用対物レンズ Expired - Fee Related JP4610118B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2001098488A JP4610118B2 (ja) 2001-03-30 2001-03-30 光ヘッド用対物レンズ
US10/107,133 US6807019B2 (en) 2001-03-30 2002-03-28 Objective lens having diffractive structure for optical pick-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001098488A JP4610118B2 (ja) 2001-03-30 2001-03-30 光ヘッド用対物レンズ

Publications (3)

Publication Number Publication Date
JP2002298422A JP2002298422A (ja) 2002-10-11
JP2002298422A5 JP2002298422A5 (enExample) 2005-09-02
JP4610118B2 true JP4610118B2 (ja) 2011-01-12

Family

ID=18952134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001098488A Expired - Fee Related JP4610118B2 (ja) 2001-03-30 2001-03-30 光ヘッド用対物レンズ

Country Status (2)

Country Link
US (1) US6807019B2 (enExample)
JP (1) JP4610118B2 (enExample)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4822037B2 (ja) * 2001-08-24 2011-11-24 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レンズ及び光ピックアップ装置
EP1965380B1 (en) 2002-02-27 2009-12-30 Ricoh Company, Ltd. Optical pickup and optical information processing apparatus
US7161890B2 (en) 2002-03-06 2007-01-09 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information device using this and computer optical disk player car navigation system optical disk recorder and optical disk server using this optical information device
US6839189B2 (en) * 2002-06-13 2005-01-04 Konica Minolta Opto, Inc. Objective lens, optical pickup device, recorder and reproducer
JP2004327003A (ja) * 2002-07-26 2004-11-18 Sharp Corp 光ピックアップ
JP2004062971A (ja) * 2002-07-26 2004-02-26 Konica Minolta Holdings Inc 対物レンズユニット、光ピックアップ装置、及び光学式情報記録再生装置
US7577077B2 (en) * 2002-09-05 2009-08-18 Konica Corporation Optical pickup apparatus and optical element
JP2004288346A (ja) * 2002-10-18 2004-10-14 Konica Minolta Holdings Inc 光ピックアップ装置用の光学素子、カップリングレンズ及び光ピックアップ装置
US7408866B2 (en) * 2003-02-14 2008-08-05 Konica Minolta Holdings, Inc. Objective lens for optical pickup apparatus, optical pickup apparatus and optical information recording reproducing apparatus
EP1465170A3 (en) * 2003-03-31 2007-05-16 Konica Minolta Holdings, Inc. Converging optical system of optical pickup device
WO2004090598A1 (ja) * 2003-04-03 2004-10-21 Nalux Co., Ltd. 結像光学素子およびその設計方法
EP1471514A3 (en) * 2003-04-22 2006-10-04 Konica Minolta Opto, Inc. Optical pickup device, optical information recording and reproducing apparatus, expander lens, coupling lens and chromatic aberration correcting optical element
JP2004326868A (ja) * 2003-04-22 2004-11-18 Konica Minolta Opto Inc 対物光学素子及び光ピックアップ装置
KR100940205B1 (ko) 2003-07-01 2010-02-10 삼성전자주식회사 호환형 광픽업
JPWO2005008777A1 (ja) * 2003-07-22 2007-09-20 日本電気株式会社 多電源半導体装置
KR100546351B1 (ko) 2003-07-25 2006-01-26 삼성전자주식회사 호환형 광픽업 및 이를 채용한 광 기록 및/또는 재생기기
JP3948481B2 (ja) * 2003-08-12 2007-07-25 コニカミノルタオプト株式会社 光ピックアップ装置
JP2005070124A (ja) * 2003-08-27 2005-03-17 Canon Inc 光走査装置及びそれを用いた画像形成装置
JP4524736B2 (ja) * 2003-09-11 2010-08-18 コニカミノルタオプト株式会社 光学素子及び光ピックアップ装置
JP4321217B2 (ja) 2003-10-31 2009-08-26 コニカミノルタオプト株式会社 光学素子及び光ピックアップ装置
JP4730099B2 (ja) * 2003-11-04 2011-07-20 コニカミノルタオプト株式会社 光ピックアップ装置
JP4341416B2 (ja) 2004-01-30 2009-10-07 コニカミノルタオプト株式会社 回折光学素子及び光ピックアップ装置
KR20060115879A (ko) * 2004-02-27 2006-11-10 코니카 미놀타 옵토 인코포레이티드 대물 광학계, 광픽업 장치 및 광정보 기록 재생 장치
JPWO2005098839A1 (ja) * 2004-04-02 2008-02-28 コニカミノルタオプト株式会社 対物レンズ及び光ピックアップ装置
JP2006127721A (ja) * 2004-04-12 2006-05-18 Konica Minolta Opto Inc 対物レンズ、光ピックアップ装置及びカップリングレンズ
JP4329608B2 (ja) * 2004-04-23 2009-09-09 コニカミノルタオプト株式会社 対物レンズ、光ピックアップ装置及び光情報記録再生装置
JP2007172830A (ja) * 2004-04-27 2007-07-05 Konica Minolta Opto Inc 対物レンズ及び光ピックアップ装置
CN1788310B (zh) * 2004-04-27 2010-06-16 柯尼卡美能达精密光学株式会社 物镜及光拾取装置
WO2005119668A1 (ja) 2004-06-03 2005-12-15 Konica Minolta Opto, Inc. 対物レンズ及び光ピックアップ装置
JP4504875B2 (ja) * 2004-06-21 2010-07-14 Ｈｏｙａ株式会社 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
US7821906B2 (en) 2004-06-21 2010-10-26 Hoya Corporation Objective lens for optical pick-up
JP4743118B2 (ja) 2004-07-21 2011-08-10 コニカミノルタオプト株式会社 光ピックアップ装置の組立方法及び光ピックアップ装置
JP4725847B2 (ja) * 2005-01-31 2011-07-13 株式会社ニコン Ｄｏｅレンズおよびこのｄｏｅレンズを有する照明光学系
KR101409691B1 (ko) * 2005-02-10 2014-06-18 코니카 미놀타 어드밴스드 레이어즈 인코포레이티드 대물렌즈, 광 픽업 장치 및 광 정보 기록 재생 장치
JPWO2006090653A1 (ja) * 2005-02-25 2008-07-24 松下電器産業株式会社 光ピックアップ装置、それに用いる対物光学系
JP5024041B2 (ja) 2005-04-22 2012-09-12 コニカミノルタアドバンストレイヤー株式会社 光ピックアップ装置用対物光学素子、光ピックアップ装置用光学素子、光ピックアップ装置用対物光学素子ユニット及び光ピックアップ装置
JP4828303B2 (ja) * 2005-05-23 2011-11-30 Ｈｏｙａ株式会社 光情報記録再生装置用対物レンズおよび光情報記録再生装置
WO2007013346A1 (ja) * 2005-07-28 2007-02-01 Matsushita Electric Industrial Co., Ltd. 光ヘッド及び光ディスク装置
US7207700B2 (en) * 2005-09-22 2007-04-24 Visteon Global Technologies, Inc. Near field lens with spread characteristics
US7401948B2 (en) 2005-10-17 2008-07-22 Visteon Global Technologies, Inc. Near field lens having reduced size
US7160010B1 (en) 2005-11-15 2007-01-09 Visteon Global Technologies, Inc. Light manifold for automotive light module
US7489453B2 (en) 2005-11-15 2009-02-10 Visteon Global Technologies, Inc. Side emitting near field lens
US7564070B2 (en) 2005-11-23 2009-07-21 Visteon Global Technologies, Inc. Light emitting diode device having a shield and/or filter
US7438454B2 (en) 2005-11-29 2008-10-21 Visteon Global Technologies, Inc. Light assembly for automotive lighting applications
CN101105956B (zh) * 2006-07-14 2012-06-20 柯尼卡美能达精密光学株式会社 光拾取装置、对物光学元件和光信息记录重放装置
KR20090035514A (ko) * 2006-07-14 2009-04-09 코니카 미놀타 옵토 인코포레이티드 광 픽업 장치, 대물 광학 소자 및 광 정보 기록 재생 장치
JP2008119830A (ja) * 2006-11-08 2008-05-29 Konica Minolta Opto Inc 光学レンズの成形方法
JP2008165971A (ja) * 2007-01-04 2008-07-17 Matsushita Electric Ind Co Ltd 対物レンズ系及びそれを備えた光ピックアップ装置
US7554742B2 (en) 2007-04-17 2009-06-30 Visteon Global Technologies, Inc. Lens assembly
JP5199655B2 (ja) * 2007-12-12 2013-05-15 Ｈｏｙａ株式会社 光情報記録再生装置用対物レンズおよび光情報記録再生装置
JPWO2009116385A1 (ja) * 2008-03-18 2011-07-21 コニカミノルタオプト株式会社 対物レンズ及び光ピックアップ装置
JP2009252309A (ja) * 2008-04-08 2009-10-29 Hoya Corp 光情報記録再生装置用対物レンズ、および光情報記録再生装置
JP2009187671A (ja) * 2009-05-29 2009-08-20 Konica Minolta Opto Inc 回折光学素子、光ピックアップ装置及び光情報記録再生装置
JP5584552B2 (ja) * 2009-12-21 2014-09-03 Ｈｏｙａ株式会社 光情報記録再生装置用対物レンズ、及び光情報記録再生装置
JP2012094231A (ja) 2010-09-29 2012-05-17 Panasonic Corp 対物レンズ素子、光ピックアップ装置
DE202017107687U1 (de) 2017-12-18 2019-03-20 Sick Ag Optoelektronischer Sensor zur Erfassung eines Erfassungsbereichs
DE102017130378B4 (de) 2017-12-18 2021-04-22 Sick Ag Optoelektronischer Sensor und Verfahren zur Erfassung eines Erfassungsbereichs

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US5629799A (en) 1992-07-16 1997-05-13 Asahi Kogaku Kogyo Kabushiki Kaisha Chromatic aberration correcting element and its application
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JP3385213B2 (ja) 1998-05-29 2003-03-10 ペンタックス株式会社 光ヘッド用対物レンズ
TW426803B (en) 1998-06-26 2001-03-21 Asahi Optical Co Ltd Objective lens for optical pick-up
JP2000260049A (ja) 1999-03-08 2000-09-22 Asahi Optical Co Ltd 光ディスク装置の光学系
JP2001093179A (ja) * 1999-09-21 2001-04-06 Pioneer Electronic Corp 光ピックアップ
KR100657251B1 (ko) * 2000-01-14 2006-12-19 삼성전자주식회사 광픽업장치

Also Published As

Publication number Publication date
US20030053223A1 (en) 2003-03-20
JP2002298422A (ja) 2002-10-11
US6807019B2 (en) 2004-10-19

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