WO2008111364A1 - 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 - Google Patents

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 Download PDF

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Publication number
WO2008111364A1
WO2008111364A1 PCT/JP2008/052639 JP2008052639W WO2008111364A1 WO 2008111364 A1 WO2008111364 A1 WO 2008111364A1 JP 2008052639 W JP2008052639 W JP 2008052639W WO 2008111364 A1 WO2008111364 A1 WO 2008111364A1
Authority
WO
WIPO (PCT)
Prior art keywords
pickup device
optical
flange portion
optical element
optical pickup
Prior art date
Application number
PCT/JP2008/052639
Other languages
English (en)
French (fr)
Inventor
Junji Hashimura
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 JP2009503938A priority Critical patent/JPWO2008111364A1/ja
Publication of WO2008111364A1 publication Critical patent/WO2008111364A1/ja

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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
    • G11B7/1372—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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

　別々に形成された２つの対物レンズ部が組み合されてなる光学素子ＯＥをボビンＢＢに組み付ける際に、位置決めの判定がしやすく、容易に組み付けを行うことが可能な光ピックアップ装置用の光学素子を提供するために、第１の対物レンズ部ＯＬ１のフランジ部ＦＬ１の面の面粗度を、第２の対物レンズ部ＯＬ２のフランジ部ＦＬ２の面粗度より悪くするか、又は互いのフランジ部の面の光軸に対する角度を異ならせることで、検出光源ＯＳからの検出光がフランジ部ＦＬ１に照射されたとき、その反射光は、ＣＣＤ等で検出される可能性は低いので、フランジ部ＦＬ２から反射された光を精度良く検出でき、これにより光学素子ＯＥを精度良くボビンＢＢに取り付けることができる。
PCT/JP2008/052639 2007-03-12 2008-02-18 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 WO2008111364A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009503938A JPWO2008111364A1 (ja) 2007-03-12 2008-02-18 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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-062019 2007-03-12
JP2007062019 2007-03-12

Publications (1)

Publication Number Publication Date
WO2008111364A1 true WO2008111364A1 (ja) 2008-09-18

Family

ID=39759307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/052639 WO2008111364A1 (ja) 2007-03-12 2008-02-18 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

Country Status (2)

Country Link
JP (1) JPWO2008111364A1 (ja)
WO (1) WO2008111364A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011207739A (ja) * 2010-03-08 2011-10-20 Asahi Glass Co Ltd ガラス基板

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09306012A (ja) * 1996-05-17 1997-11-28 Matsushita Electric Ind Co Ltd 対物レンズ
WO2006118221A1 (ja) * 2005-04-28 2006-11-09 Matsushita Electric Industrial Co., Ltd. 対物レンズの傾き調整方法、光ピックアップの製造方法、対物レンズの傾き調整装置、光ピックアップ部品、光ピックアップ、及び光情報記録再生装置
WO2007040235A1 (ja) * 2005-10-04 2007-04-12 Konica Minolta Opto, Inc. 対物レンズユニット及び光ピックアップ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09306012A (ja) * 1996-05-17 1997-11-28 Matsushita Electric Ind Co Ltd 対物レンズ
WO2006118221A1 (ja) * 2005-04-28 2006-11-09 Matsushita Electric Industrial Co., Ltd. 対物レンズの傾き調整方法、光ピックアップの製造方法、対物レンズの傾き調整装置、光ピックアップ部品、光ピックアップ、及び光情報記録再生装置
WO2007040235A1 (ja) * 2005-10-04 2007-04-12 Konica Minolta Opto, Inc. 対物レンズユニット及び光ピックアップ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011207739A (ja) * 2010-03-08 2011-10-20 Asahi Glass Co Ltd ガラス基板

Also Published As

Publication number Publication date
JPWO2008111364A1 (ja) 2010-06-24

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