JP4722205B2 - 光ピックアップ装置および光ディスク装置 - Google Patents

光ピックアップ装置および光ディスク装置 Download PDF

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Publication number
JP4722205B2
JP4722205B2 JP2009178709A JP2009178709A JP4722205B2 JP 4722205 B2 JP4722205 B2 JP 4722205B2 JP 2009178709 A JP2009178709 A JP 2009178709A JP 2009178709 A JP2009178709 A JP 2009178709A JP 4722205 B2 JP4722205 B2 JP 4722205B2
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JP
Japan
Prior art keywords
light
signal
sensor unit
sensors
pickup device
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.)
Expired - Fee Related
Application number
JP2009178709A
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English (en)
Japanese (ja)
Other versions
JP2011034623A5 (enExample
JP2011034623A (ja
Inventor
謙司 永冨
克俊 日比野
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
Priority to JP2009178709A priority Critical patent/JP4722205B2/ja
Priority to KR1020100064282A priority patent/KR101109951B1/ko
Priority to US12/844,261 priority patent/US8040779B2/en
Priority to CN2010102431545A priority patent/CN101989438B/zh
Publication of JP2011034623A publication Critical patent/JP2011034623A/ja
Publication of JP2011034623A5 publication Critical patent/JP2011034623A5/ja
Application granted granted Critical
Publication of JP4722205B2 publication Critical patent/JP4722205B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
    • 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
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0009—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage
    • G11B2007/0013—Recording, reproducing or erasing systems characterised by the structure or type of the carrier for carriers having data stored in three dimensions, e.g. volume storage for carriers having multiple discrete layers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2009178709A 2009-07-31 2009-07-31 光ピックアップ装置および光ディスク装置 Expired - Fee Related JP4722205B2 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2009178709A JP4722205B2 (ja) 2009-07-31 2009-07-31 光ピックアップ装置および光ディスク装置
KR1020100064282A KR101109951B1 (ko) 2009-07-31 2010-07-05 광 픽업 장치 및 광 디스크 장치
US12/844,261 US8040779B2 (en) 2009-07-31 2010-07-27 Optical pickup device and optical disc device
CN2010102431545A CN101989438B (zh) 2009-07-31 2010-07-28 光拾取装置及光盘装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009178709A JP4722205B2 (ja) 2009-07-31 2009-07-31 光ピックアップ装置および光ディスク装置

Publications (3)

Publication Number Publication Date
JP2011034623A JP2011034623A (ja) 2011-02-17
JP2011034623A5 JP2011034623A5 (enExample) 2011-03-31
JP4722205B2 true JP4722205B2 (ja) 2011-07-13

Family

ID=43526882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009178709A Expired - Fee Related JP4722205B2 (ja) 2009-07-31 2009-07-31 光ピックアップ装置および光ディスク装置

Country Status (4)

Country Link
US (1) US8040779B2 (enExample)
JP (1) JP4722205B2 (enExample)
KR (1) KR101109951B1 (enExample)
CN (1) CN101989438B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5173923B2 (ja) * 2009-04-28 2013-04-03 三洋電機株式会社 光ピックアップ装置および光ディスク装置
US9689987B1 (en) 2012-06-13 2017-06-27 Physical Optics Corporation Integrative optics system, device, and method

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0630162A (ja) * 1992-04-27 1994-02-04 Murata Mach Ltd 送信案内文作成機能付ファクシミリ装置
JP3879897B2 (ja) * 2000-09-07 2007-02-14 パイオニア株式会社 光ピックアップ装置
US6987614B2 (en) * 2001-01-12 2006-01-17 Sony Corporation Optical pickup and optical disc drive device
JP4859089B2 (ja) 2005-03-14 2012-01-18 株式会社リコー 抽出光学系、光ピックアップ装置及び光ディスク装置
JP2006260669A (ja) 2005-03-16 2006-09-28 Ricoh Co Ltd 光情報記録再生装置及び記録媒体
JP4618725B2 (ja) * 2005-11-08 2011-01-26 株式会社リコー 光ピックアップ装置及び光ディスク装置
JP4561706B2 (ja) * 2005-11-16 2010-10-13 日本ビクター株式会社 光ピックアップ装置
JP4433315B2 (ja) * 2006-01-12 2010-03-17 ソニー株式会社 光ピックアップ及び光情報装置
JP4620631B2 (ja) * 2006-05-16 2011-01-26 株式会社日立メディアエレクトロニクス 光ディスクドライブ装置
US7567495B2 (en) * 2006-10-18 2009-07-28 Hitachi Media Electronics Co., Ltd. Optical pickup apparatus and optical disc apparatus using same
US20090278029A1 (en) * 2006-11-01 2009-11-12 Pioneer Corporation Pickup device
JP2008130167A (ja) * 2006-11-21 2008-06-05 Sanyo Electric Co Ltd 光ピックアップ装置
JP2008217882A (ja) 2007-03-02 2008-09-18 Matsushita Electric Ind Co Ltd 光ピックアップおよび光ディスク装置、コンピュータ、光ディスクプレーヤ、光ディスクレコーダ
US20080165655A1 (en) * 2007-01-09 2008-07-10 Ryo Saitoh Optical pickup device
JP4893314B2 (ja) * 2007-01-09 2012-03-07 株式会社Ｊｖｃケンウッド 光ピックアップ装置
JP2008276860A (ja) 2007-04-27 2008-11-13 Hitachi Media Electoronics Co Ltd 光ピックアップ装置及び光ディスクドライブ
US8000184B2 (en) * 2007-05-08 2011-08-16 Panasonic Corporation Optical pickup device and optical disc device with offset compensation
JP2009003986A (ja) * 2007-06-19 2009-01-08 Victor Co Of Japan Ltd 光ピックアップ装置
JP2009009630A (ja) * 2007-06-27 2009-01-15 Victor Co Of Japan Ltd 光ピックアップ装置
JP4610628B2 (ja) * 2008-03-04 2011-01-12 三洋電機株式会社 光ピックアップ装置および焦点調整方法

Also Published As

Publication number Publication date
CN101989438A (zh) 2011-03-23
CN101989438B (zh) 2012-12-12
KR101109951B1 (ko) 2012-02-14
US20110026389A1 (en) 2011-02-03
US8040779B2 (en) 2011-10-18
JP2011034623A (ja) 2011-02-17
KR20110013219A (ko) 2011-02-09

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