TW200519914A - Optical pick-up apparatus - Google Patents

Optical pick-up apparatus

Info

Publication number
TW200519914A
TW200519914A TW093123508A TW93123508A TW200519914A TW 200519914 A TW200519914 A TW 200519914A TW 093123508 A TW093123508 A TW 093123508A TW 93123508 A TW93123508 A TW 93123508A TW 200519914 A TW200519914 A TW 200519914A
Authority
TW
Taiwan
Prior art keywords
output power
light source
optical
light
optical pick
Prior art date
Application number
TW093123508A
Other languages
English (en)
Other versions
TWI346330B (en
Inventor
Kiyono Ikenaka
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
Publication of TW200519914A publication Critical patent/TW200519914A/zh
Application granted granted Critical
Publication of TWI346330B publication Critical patent/TWI346330B/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
    • G11B7/125—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction 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
    • G11B7/1353—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
TW093123508A 2003-08-12 2004-08-05 Optical pick-up apparatus TWI346330B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003292122 2003-08-12

Publications (2)

Publication Number Publication Date
TW200519914A true TW200519914A (en) 2005-06-16
TWI346330B TWI346330B (en) 2011-08-01

Family

ID=34131696

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093123508A TWI346330B (en) 2003-08-12 2004-08-05 Optical pick-up apparatus

Country Status (7)

Country Link
US (1) US7269119B2 (zh)
EP (1) EP1655727A4 (zh)
JP (1) JP3948481B2 (zh)
KR (1) KR20060063943A (zh)
CN (1) CN100343913C (zh)
TW (1) TWI346330B (zh)
WO (1) WO2005015554A1 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006114081A (ja) * 2004-10-12 2006-04-27 Konica Minolta Opto Inc 対物レンズ及び光ピックアップ装置
WO2006046465A1 (ja) 2004-10-29 2006-05-04 Konica Minolta Opto, Inc. 対物レンズ、光ピックアップ装置及び光ディスクドライブ装置
TWI404060B (zh) 2004-12-01 2013-08-01 Hoya Corp 光學元件之設計方法、光學系統、光碟機之光學裝置、物鏡及光碟機
KR20070108226A (ko) * 2005-03-08 2007-11-08 코니카 미놀타 옵토 인코포레이티드 광픽업 장치 및, 대물 광학 유닛 및 대물 광학계의 설계방법
TWI393135B (zh) * 2005-04-21 2013-04-11 Hitachi Maxell Optical pickup lens and optical pickup device
JP2006351086A (ja) * 2005-06-14 2006-12-28 Epson Toyocom Corp 光路補正装置とこれを用いた光ピックアップ
JP4849979B2 (ja) * 2005-07-12 2012-01-11 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
CN101228580B (zh) * 2005-07-28 2011-05-11 松下电器产业株式会社 光学头及光盘装置
JP4499671B2 (ja) * 2006-02-17 2010-07-07 シャープ株式会社 光ピックアップ装置
JP2008052787A (ja) * 2006-08-23 2008-03-06 Matsushita Electric Ind Co Ltd 複合光学素子及び光ピックアップ装置
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
WO2014208111A1 (ja) * 2013-06-27 2014-12-31 ギガフォトン株式会社 光ビーム計測装置、レーザ装置及び光ビーム分離装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE441183T1 (de) * 1999-01-22 2009-09-15 Konica Minolta Opto Inc Optische abtastvorrichtung, mit der optischen abtastvorrichtung versehenes aufnahme/wiedergabegerät, optisches element und verfahren zur datenaufnahme/wiedergabe
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
JP3886313B2 (ja) * 2000-01-26 2007-02-28 パイオニア株式会社 光ピックアップ
JP4610118B2 (ja) * 2001-03-30 2011-01-12 Ｈｏｙａ株式会社 光ヘッド用対物レンズ
CN1248209C (zh) * 2001-04-05 2006-03-29 皇家菲利浦电子有限公司 光学扫描装置
TWI239520B (en) * 2001-10-12 2005-09-11 Konica Corp Objective lens, optical element, optical pick-up apparatus and optical information recording and/or reproducing apparatus equipped therewith
JP2004164817A (ja) * 2002-09-05 2004-06-10 Konica Minolta Holdings Inc 光ピックアップ装置に用いる対物光学素子、光ピックアップ装置

Also Published As

Publication number Publication date
CN1581320A (zh) 2005-02-16
TWI346330B (en) 2011-08-01
US7269119B2 (en) 2007-09-11
CN100343913C (zh) 2007-10-17
JP3948481B2 (ja) 2007-07-25
EP1655727A1 (en) 2006-05-10
KR20060063943A (ko) 2006-06-12
US20050036430A1 (en) 2005-02-17
EP1655727A4 (en) 2008-07-16
JPWO2005015554A1 (ja) 2006-10-05
WO2005015554A1 (ja) 2005-02-17

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees