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WO2009069583A1 - 光ピックアップ装置 - Google Patents

光ピックアップ装置 Download PDF

Info

Publication number
WO2009069583A1
WO2009069583A1 PCT/JP2008/071324 JP2008071324W WO2009069583A1 WO 2009069583 A1 WO2009069583 A1 WO 2009069583A1 JP 2008071324 W JP2008071324 W JP 2008071324W WO 2009069583 A1 WO2009069583 A1 WO 2009069583A1
Authority
WO
WIPO (PCT)
Prior art keywords
reflected light
light
action
pickup device
optical pickup
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.)
Ceased
Application number
PCT/JP2008/071324
Other languages
English (en)
French (fr)
Inventor
Kenji Nagatomi
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of WO2009069583A1 publication Critical patent/WO2009069583A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

【課題】２つの対物レンズを経由した各ディスクからの反射光を対応する光検出部上に適正に収束させ得る光ピックアップ装置を提供する。 【解決手段】偏光依存性のホログラム素子１５は、ＨＤからの反射光が入射する際の偏光方向（Ｓ偏光）のみに、回折による焦点位置の調整作用を付与する。ＢＤからの反射光が適正に収束される位置に光検出器２８を位置調整した状態で、適宜、適正な回折作用（焦点距離調整作用）を有するホログラム素子１５をＨＤからの反射光の光路中に配する。これにより、ＨＤからの反射光を光検出器上に適正に収束させることができる。
PCT/JP2008/071324 2007-11-28 2008-11-25 光ピックアップ装置 Ceased WO2009069583A1 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-308045 2007-11-28
JP2007308045 2007-11-28
JP2007323603 2007-12-14
JP2007-323603 2007-12-14

Publications (1)

Publication Number Publication Date
WO2009069583A1 true WO2009069583A1 (ja) 2009-06-04

Family

ID=40678478

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/071324 Ceased WO2009069583A1 (ja) 2007-11-28 2008-11-25 光ピックアップ装置

Country Status (1)

Country Link
WO (1) WO2009069583A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102749718A (zh) * 2012-07-16 2012-10-24 西北工业大学 基于梯形塞纳克干涉仪产生任意矢量光场的方法及装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10261240A (ja) * 1997-03-19 1998-09-29 Sony Corp 記録再生装置および方法
JP2001076371A (ja) * 1999-09-02 2001-03-23 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置
JP2004014098A (ja) * 2002-06-11 2004-01-15 Samsung Electronics Co Ltd ２波長光源モジュールを採用した光ピックアップ及び位置ずれ補正方法
JP2004510281A (ja) * 2000-09-25 2004-04-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査デバイス
WO2006112249A1 (ja) * 2005-04-15 2006-10-26 Pioneer Corporation 光ピックアップ装置及び情報記録再生装置
WO2007055167A1 (ja) * 2005-11-08 2007-05-18 Konica Minolta Opto, Inc. 光ピックアップ装置
WO2007114047A1 (ja) * 2006-03-31 2007-10-11 Pioneer Corporation 光ヘッド装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10261240A (ja) * 1997-03-19 1998-09-29 Sony Corp 記録再生装置および方法
JP2001076371A (ja) * 1999-09-02 2001-03-23 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置
JP2004510281A (ja) * 2000-09-25 2004-04-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 光走査デバイス
JP2004014098A (ja) * 2002-06-11 2004-01-15 Samsung Electronics Co Ltd ２波長光源モジュールを採用した光ピックアップ及び位置ずれ補正方法
WO2006112249A1 (ja) * 2005-04-15 2006-10-26 Pioneer Corporation 光ピックアップ装置及び情報記録再生装置
WO2007055167A1 (ja) * 2005-11-08 2007-05-18 Konica Minolta Opto, Inc. 光ピックアップ装置
WO2007114047A1 (ja) * 2006-03-31 2007-10-11 Pioneer Corporation 光ヘッド装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102749718A (zh) * 2012-07-16 2012-10-24 西北工业大学 基于梯形塞纳克干涉仪产生任意矢量光场的方法及装置

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