TW200510764A - Lens, and optical system, optical head and optical disc device using the lens - Google Patents

Lens, and optical system, optical head and optical disc device using the lens

Info

Publication number
TW200510764A
TW200510764A TW093120475A TW93120475A TW200510764A TW 200510764 A TW200510764 A TW 200510764A TW 093120475 A TW093120475 A TW 093120475A TW 93120475 A TW93120475 A TW 93120475A TW 200510764 A TW200510764 A TW 200510764A
Authority
TW
Taiwan
Prior art keywords
lens
aij
lambda
wavelength
bij
Prior art date
Application number
TW093120475A
Other languages
English (en)
Chinese (zh)
Inventor
Yasuyuki Sugi
Original Assignee
Hitachi Maxell
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 Hitachi Maxell filed Critical Hitachi Maxell
Publication of TW200510764A publication Critical patent/TW200510764A/zh

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
    • 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
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/04—Simple or compound lenses with non-spherical faces with continuous faces that are rotationally symmetrical but deviate from a true sphere, e.g. so called "aspheric" lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/10—Bifocal lenses; Multifocal 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
    • G11B7/1365—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
    • G11B7/1392—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
    • 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)
TW093120475A 2003-07-10 2004-07-08 Lens, and optical system, optical head and optical disc device using the lens TW200510764A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003273055A JP3868932B2 (ja) 2003-07-10 2003-07-10 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

Publications (1)

Publication Number Publication Date
TW200510764A true TW200510764A (en) 2005-03-16

Family

ID=33562725

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093120475A TW200510764A (en) 2003-07-10 2004-07-08 Lens, and optical system, optical head and optical disc device using the lens

Country Status (5)

Country Link
US (1) US7411743B2 (enExample)
JP (1) JP3868932B2 (enExample)
KR (1) KR101044419B1 (enExample)
CN (1) CN100419490C (enExample)
TW (1) TW200510764A (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7365917B2 (en) * 2004-08-16 2008-04-29 Xceed Imaging Ltd. Optical method and system for extended depth of focus
US7742370B2 (en) * 2005-05-23 2010-06-22 Hoya Corporation Objective lens and optical information read/write device
JP2006330765A (ja) * 2006-09-01 2006-12-07 Hitachi Maxell Ltd 光記録媒体記録／再生用対物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
JP2008176903A (ja) * 2006-12-18 2008-07-31 Sanyo Electric Co Ltd 光ピックアップ装置
JP2009123312A (ja) * 2007-11-19 2009-06-04 Hitachi Maxell Ltd 対物レンズ
JP5310386B2 (ja) * 2009-06-18 2013-10-09 ソニー株式会社 対物レンズ、光ピックアップ及び光ディスク装置
JP5340396B2 (ja) * 2009-09-17 2013-11-13 パナソニック株式会社 対物レンズ素子
US8531783B2 (en) 2010-02-09 2013-09-10 Xceed Imaging Ltd. Imaging method and system for imaging with extended depth of focus
WO2022054273A1 (ja) * 2020-09-14 2022-03-17 オリンパス株式会社 対物光学系、撮像装置、及び内視鏡

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3490762B2 (ja) 1994-04-22 2004-01-26 ペンタックス株式会社 合成樹脂製輪帯レンズ
JPH09145995A (ja) 1995-11-27 1997-06-06 Konica Corp 光情報記録媒体の記録再生用光学系
JPH112759A (ja) 1997-06-13 1999-01-06 Pioneer Electron Corp 対物レンズ
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
TW426803B (en) * 1998-06-26 2001-03-21 Asahi Optical Co Ltd Objective lens for optical pick-up
JP4434369B2 (ja) 1999-08-11 2010-03-17 旭硝子株式会社 対物レンズ
US6515955B2 (en) * 2000-04-14 2003-02-04 Pentax Corporation Objective optical system for optical pick-up
JP4566329B2 (ja) 2000-05-02 2010-10-20 Ｈｏｙａ株式会社 バイト
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
JP2002189114A (ja) 2000-10-02 2002-07-05 Konica Corp 光学素子、金型及び工具
US6771435B2 (en) * 2000-10-02 2004-08-03 Konica Corporation Optical element, metal die, and cutting tool
JP4716239B2 (ja) * 2000-11-14 2011-07-06 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用の対物レンズ及び光ピックアップ装置
JP3864749B2 (ja) * 2001-10-11 2007-01-10 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光学系及び光ピックアップ装置の対物レンズ
JP3518684B2 (ja) * 2002-01-11 2004-04-12 日立マクセル株式会社 対物レンズの設計方法、対物レンズ、対物レンズの製造方法、多波長用光学系、光ヘッド及び光デイスク装置
US7038862B2 (en) * 2003-06-17 2006-05-02 Pentax Corporation Objective lens for optical pick-up
KR100525229B1 (ko) * 2003-10-13 2005-10-28 삼성전기주식회사 Ｄｖｄ/ｃｄ 호환형의 광픽업용 대물렌즈

Also Published As

Publication number Publication date
KR20050007182A (ko) 2005-01-17
US7411743B2 (en) 2008-08-12
US20050007935A1 (en) 2005-01-13
CN1576938A (zh) 2005-02-09
JP3868932B2 (ja) 2007-01-17
KR101044419B1 (ko) 2011-06-27
CN100419490C (zh) 2008-09-17
JP2005031554A (ja) 2005-02-03

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