WO2008096565A1 - 複合対物レンズ及び光ピックアップ装置 - Google Patents

複合対物レンズ及び光ピックアップ装置 Download PDF

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Publication number
WO2008096565A1
WO2008096565A1 PCT/JP2008/050122 JP2008050122W WO2008096565A1 WO 2008096565 A1 WO2008096565 A1 WO 2008096565A1 JP 2008050122 W JP2008050122 W JP 2008050122W WO 2008096565 A1 WO2008096565 A1 WO 2008096565A1
Authority
WO
WIPO (PCT)
Prior art keywords
objective lens
composite objective
pickup device
optical pickup
composite
Prior art date
Application number
PCT/JP2008/050122
Other languages
English (en)
French (fr)
Inventor
Yuichi Atarashi
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.
Priority to JP2008557038A priority Critical patent/JPWO2008096565A1/ja
Publication of WO2008096565A1 publication Critical patent/WO2008096565A1/ja

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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08576—Swinging-arm positioners
    • 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
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier
    • 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
    • G11B7/122—Flying-type heads, e.g. analogous to Winchester type in magnetic recording
    • 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)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

　アクチュエータの負荷を少なくでき安定した駆動を確保することができる複合対物レンズを提供するために、複合対物レンズ２０の保護部材２４，２５は、トラック方向に沿った方向に延伸されている。光ディスクと複合対物レンズ２０との間には、高速の気流が形成されるが、保護部材２４，２５によって形成されトラック方向に沿った方向に延伸された保護部材により気流の安定化を図ることができ、これにより複合対物レンズ２０やレンズ可動部１０に作用する力が大きく変動することを防止でき、複合対物レンズ２０を対向する光ディスクに対して安定して支持することができる。
PCT/JP2008/050122 2007-02-08 2008-01-09 複合対物レンズ及び光ピックアップ装置 WO2008096565A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008557038A JPWO2008096565A1 (ja) 2007-02-08 2008-01-09 複合対物レンズ及び光ピックアップ装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007029662 2007-02-08
JP2007-029662 2007-02-08

Publications (1)

Publication Number Publication Date
WO2008096565A1 true WO2008096565A1 (ja) 2008-08-14

Family

ID=39681476

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/050122 WO2008096565A1 (ja) 2007-02-08 2008-01-09 複合対物レンズ及び光ピックアップ装置

Country Status (2)

Country Link
JP (1) JPWO2008096565A1 (ja)
WO (1) WO2008096565A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010073224A (ja) * 2008-09-16 2010-04-02 Hitachi Media Electoronics Co Ltd 対物レンズ駆動装置および光ピックアップ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05144041A (ja) * 1992-04-15 1993-06-11 Sony Corp 対物レンズ装置
JPH0963083A (ja) * 1995-08-22 1997-03-07 Toshiba Corp 対物レンズ駆動装置
JP2002222535A (ja) * 2000-11-22 2002-08-09 Sony Corp 光学ピックアップ装置及びディスクドライブ装置
JP2007026507A (ja) * 2005-07-14 2007-02-01 Matsushita Electric Ind Co Ltd 光ピックアップ装置
JP2007328902A (ja) * 2006-05-09 2007-12-20 Sony Corp 対物レンズ装置、光ピックアップ装置、光ディスク駆動装置及び対物レンズの駆動方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05144041A (ja) * 1992-04-15 1993-06-11 Sony Corp 対物レンズ装置
JPH0963083A (ja) * 1995-08-22 1997-03-07 Toshiba Corp 対物レンズ駆動装置
JP2002222535A (ja) * 2000-11-22 2002-08-09 Sony Corp 光学ピックアップ装置及びディスクドライブ装置
JP2007026507A (ja) * 2005-07-14 2007-02-01 Matsushita Electric Ind Co Ltd 光ピックアップ装置
JP2007328902A (ja) * 2006-05-09 2007-12-20 Sony Corp 対物レンズ装置、光ピックアップ装置、光ディスク駆動装置及び対物レンズの駆動方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010073224A (ja) * 2008-09-16 2010-04-02 Hitachi Media Electoronics Co Ltd 対物レンズ駆動装置および光ピックアップ
US8161503B2 (en) 2008-09-16 2012-04-17 Hitachi Media Electronics Co., Ltd. Objective lens actuator and an optical pickup
CN101677004B (zh) * 2008-09-16 2012-07-25 日立视听媒体股份有限公司 物镜驱动装置和光拾取器

Also Published As

Publication number Publication date
JPWO2008096565A1 (ja) 2010-05-20

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