KR101109951B1 - 광 픽업 장치 및 광 디스크 장치 - Google Patents

광 픽업 장치 및 광 디스크 장치 Download PDF

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Publication number
KR101109951B1
KR101109951B1 KR1020100064282A KR20100064282A KR101109951B1 KR 101109951 B1 KR101109951 B1 KR 101109951B1 KR 1020100064282 A KR1020100064282 A KR 1020100064282A KR 20100064282 A KR20100064282 A KR 20100064282A KR 101109951 B1 KR101109951 B1 KR 101109951B1
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KR
South Korea
Prior art keywords
light
signal
sensors
sensor unit
sensor
Prior art date
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Expired - Fee Related
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KR1020100064282A
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English (en)
Korean (ko)
Other versions
KR20110013219A (ko
Inventor
겐지 나가또미
가쯔또시 히비노
Original Assignee
산요덴키가부시키가이샤
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Application filed by 산요덴키가부시키가이샤 filed Critical 산요덴키가부시키가이샤
Publication of KR20110013219A publication Critical patent/KR20110013219A/ko
Application granted granted Critical
Publication of KR101109951B1 publication Critical patent/KR101109951B1/ko
Expired - Fee Related legal-status Critical Current
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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

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
KR1020100064282A 2009-07-31 2010-07-05 광 픽업 장치 및 광 디스크 장치 Expired - Fee Related KR101109951B1 (ko)

Applications Claiming Priority (2)

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
JPJP-P-2009-178709 2009-07-31

Publications (2)

Publication Number Publication Date
KR20110013219A KR20110013219A (ko) 2011-02-09
KR101109951B1 true KR101109951B1 (ko) 2012-02-14

Family

ID=43526882

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100064282A Expired - Fee Related KR101109951B1 (ko) 2009-07-31 2010-07-05 광 픽업 장치 및 광 디스크 장치

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

Citations (4)

* 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
KR20020081437A (ko) * 2001-01-12 2002-10-26 소니 가부시끼 가이샤 광 픽업 장치 및 광 디스크 장치
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
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

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
JPWO2008139686A1 (ja) * 2007-05-08 2010-07-29 パナソニック株式会社 光ピックアップ装置、光ディスク装置
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

Patent Citations (4)

* 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
KR20020081437A (ko) * 2001-01-12 2002-10-26 소니 가부시끼 가이샤 광 픽업 장치 및 광 디스크 장치
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
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

Also Published As

Publication number Publication date
US8040779B2 (en) 2011-10-18
CN101989438B (zh) 2012-12-12
US20110026389A1 (en) 2011-02-03
JP4722205B2 (ja) 2011-07-13
CN101989438A (zh) 2011-03-23
KR20110013219A (ko) 2011-02-09
JP2011034623A (ja) 2011-02-17

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