AU2002212742A1 - Objective lens and optical pickup apparatus - Google Patents

Objective lens and optical pickup apparatus

Info

Publication number
AU2002212742A1
AU2002212742A1 AU2002212742A AU1274202A AU2002212742A1 AU 2002212742 A1 AU2002212742 A1 AU 2002212742A1 AU 2002212742 A AU2002212742 A AU 2002212742A AU 1274202 A AU1274202 A AU 1274202A AU 2002212742 A1 AU2002212742 A1 AU 2002212742A1
Authority
AU
Australia
Prior art keywords
objective lens
light flux
diffracted ray
optical
information recording
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.)
Abandoned
Application number
AU2002212742A
Other languages
English (en)
Inventor
Koji Honda
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 Inc
Original Assignee
Konica Minolta 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 Inc filed Critical Konica Minolta Inc
Publication of AU2002212742A1 publication Critical patent/AU2002212742A1/en
Abandoned 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
    • G11B7/135—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
    • 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
    • G11B7/125—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
    • G11B7/139—Numerical aperture control means
    • 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)
  • Lenses (AREA)
AU2002212742A 2000-11-14 2001-11-09 Objective lens and optical pickup apparatus Abandoned AU2002212742A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000-347132 2000-11-14
JP2000347132A JP4716239B2 (ja) 2000-11-14 2000-11-14 光ピックアップ装置用の対物レンズ及び光ピックアップ装置
PCT/JP2001/009806 WO2002041308A2 (en) 2000-11-14 2001-11-09 Objective lens and optical pickup apparatus

Publications (1)

Publication Number Publication Date
AU2002212742A1 true AU2002212742A1 (en) 2002-05-27

Family

ID=18820912

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002212742A Abandoned AU2002212742A1 (en) 2000-11-14 2001-11-09 Objective lens and optical pickup apparatus

Country Status (10)

Country Link
US (1) US6728172B2 (ja)
EP (1) EP1205926A3 (ja)
JP (1) JP4716239B2 (ja)
KR (1) KR100802845B1 (ja)
CN (1) CN1203346C (ja)
AU (1) AU2002212742A1 (ja)
CA (1) CA2427411A1 (ja)
MX (1) MXPA03003831A (ja)
TW (1) TW539869B (ja)
WO (1) WO2002041308A2 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6441419B1 (en) 1998-03-31 2002-08-27 Lsi Logic Corporation Encapsulated-metal vertical-interdigitated capacitor and damascene method of manufacturing same
JP2002342969A (ja) * 2001-05-16 2002-11-29 Konica Corp 光ピックアップ装置用の対物レンズ及び光ピックアップ装置
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
US7411884B2 (en) * 2002-08-21 2008-08-12 Hoya Corporation Optical system with objective lens having diffraction structure
JP4223340B2 (ja) * 2003-06-30 2009-02-12 フジノン株式会社 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
JP3868932B2 (ja) * 2003-07-10 2007-01-17 日立マクセル株式会社 レンズ及びそれを用いた光学系、光ヘッド並びに光ディスク装置
US7369480B2 (en) * 2004-04-22 2008-05-06 Konica Minolta Opto, Inc. Optical pickup device and optical element
JP2006024327A (ja) * 2004-07-09 2006-01-26 Nidec Sankyo Corp 対物レンズ及びそれを備えた光ヘッド装置
JP4093287B2 (ja) * 2006-07-14 2008-06-04 コニカミノルタオプト株式会社 光ピックアップ装置、対物光学素子及び光情報記録再生装置
JPWO2008117587A1 (ja) * 2007-03-28 2010-07-15 コニカミノルタオプト株式会社 光ピックアップ装置用の光学素子及び光ピックアップ装置
JP2008305493A (ja) * 2007-06-07 2008-12-18 Canon Inc 光学式情報記録再生装置
CN108490632B (zh) * 2018-03-12 2020-01-10 Oppo广东移动通信有限公司 激光投射模组、深度相机和电子装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966362A (en) * 1995-11-02 1999-10-12 Konica Corporation Optical system for recording and reproducing for use in optical information recording medium
EP0932145A4 (en) * 1996-09-27 1999-11-03 Sanyo Electric Co OPTICAL SCANNER AND WAVELENGTH SELECTIVE GRID
JP3775011B2 (ja) * 1997-09-09 2006-05-17 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
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
JP3689266B2 (ja) * 1998-06-26 2005-08-31 ペンタックス株式会社 光ヘッド用対物レンズ
EP0996120B1 (en) * 1998-10-23 2007-06-13 Samsung Electronics Co., Ltd. Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
KR100604788B1 (ko) * 1998-10-23 2006-07-26 삼성전자주식회사 호환형 광픽업장치
JP3794229B2 (ja) * 1999-01-22 2006-07-05 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、この光ピックアップ装置を備えた記録再生装置、情報の記録再生方法、及び光ピックアップ装置用対物レンズ
DE60034829T2 (de) * 1999-01-22 2008-01-31 Konica Minolta Opto, Inc., Hachioji Optische Abtastvorrichtung zur Informationsaufzeichnung und Informationswiedergabe
JP2000260049A (ja) * 1999-03-08 2000-09-22 Asahi Optical Co Ltd 光ディスク装置の光学系
TW490589B (en) * 2000-05-24 2002-06-11 Konishiroku Photo Ind Optical pickup apparatus, objective lens, apparatus for reproducing and/or recording optical information recording medium

Also Published As

Publication number Publication date
CN1353318A (zh) 2002-06-12
EP1205926A2 (en) 2002-05-15
JP4716239B2 (ja) 2011-07-06
US6728172B2 (en) 2004-04-27
EP1205926A3 (en) 2003-02-12
KR100802845B1 (ko) 2008-02-12
TW539869B (en) 2003-07-01
CA2427411A1 (en) 2002-05-23
JP2002150595A (ja) 2002-05-24
MXPA03003831A (es) 2004-10-15
US20020089764A1 (en) 2002-07-11
KR20020037691A (ko) 2002-05-22
CN1203346C (zh) 2005-05-25
WO2002041308A2 (en) 2002-05-23
WO2002041308A3 (en) 2003-03-27

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