JP4886058B2 - 複層ディスクでの層間干渉信号除去ユニットを採用した光ピックアップ装置及び光記録／再生装置 - Google Patents

複層ディスクでの層間干渉信号除去ユニットを採用した光ピックアップ装置及び光記録／再生装置 Download PDF

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Publication number
JP4886058B2
JP4886058B2 JP2010113505A JP2010113505A JP4886058B2 JP 4886058 B2 JP4886058 B2 JP 4886058B2 JP 2010113505 A JP2010113505 A JP 2010113505A JP 2010113505 A JP2010113505 A JP 2010113505A JP 4886058 B2 JP4886058 B2 JP 4886058B2
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Japan
Prior art keywords
light
region
optical pickup
diffraction
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
JP2010113505A
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English (en)
Japanese (ja)
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JP2010205411A (ja
Inventor
長 勳 劉
湧 漢 尹
壽 韓 朴
永 仙 全
明 ▲そく▼ 金
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.)
Samsung Electronics Co Ltd
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Samsung Electronics 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of JP2010205411A publication Critical patent/JP2010205411A/ja
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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
    • G11B7/12—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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • 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
    • G11B7/13—Optical detectors therefor
    • 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
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1395—Beam splitters or combiners
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/24018—Laminated discs
    • G11B7/24027—Layers; Shape, structure or physical properties thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2010113505A 2007-01-08 2010-05-17 複層ディスクでの層間干渉信号除去ユニットを採用した光ピックアップ装置及び光記録／再生装置 Expired - Fee Related JP4886058B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20070002179 2007-01-08
KR10-2007-0002179 2007-01-08
KR10-2007-0049958 2007-05-22
KR1020070049958A KR100846806B1 (ko) 2007-01-08 2007-05-22 복층 디스크에서의 층간 간섭 신호 제거 유닛, 이를 채용한광픽업 장치 및 광 기록/재생 장치

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2007337478A Division JP2008171544A (ja) 2007-01-08 2007-12-27 複層ディスクでの層間干渉信号除去ユニット、これを採用した光ピックアップ装置及び光記録／再生装置

Publications (2)

Publication Number Publication Date
JP2010205411A JP2010205411A (ja) 2010-09-16
JP4886058B2 true JP4886058B2 (ja) 2012-02-29

Family

ID=39631555

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010113505A Expired - Fee Related JP4886058B2 (ja) 2007-01-08 2010-05-17 複層ディスクでの層間干渉信号除去ユニットを採用した光ピックアップ装置及び光記録／再生装置

Country Status (5)

Country Link
JP (1) JP4886058B2 (zh)
KR (1) KR100846806B1 (zh)
CN (1) CN101221781B (zh)
DE (1) DE602007007428D1 (zh)
HK (1) HK1120156A1 (zh)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2616465B2 (ja) * 1994-11-15 1997-06-04 日本電気株式会社 光ヘッド装置
US5883874A (en) 1996-07-31 1999-03-16 Daewoo Electronics Co., Ltd. Optical pickup system for selectively reading a multiple number of optical disks
JP4281187B2 (ja) * 1999-03-31 2009-06-17 旭硝子株式会社 光ヘッド装置
KR100657247B1 (ko) * 1999-11-30 2006-12-19 삼성전자주식회사 고밀도 광집속을 위한 대물렌즈 및 이를 채용한광픽업장치
JP2001332027A (ja) * 2000-05-19 2001-11-30 Sanyo Electric Co Ltd ディスク再生装置
JP2002015452A (ja) * 2000-06-27 2002-01-18 Matsushita Electric Ind Co Ltd 光学ヘッド
US7313074B2 (en) * 2003-06-30 2007-12-25 Ricoh Company, Ltd. Objective lens, optical, pickup and optical information processing apparatus using the same
JP4389154B2 (ja) * 2003-08-18 2009-12-24 ソニー株式会社 光ピックアップ及びディスクドライブ装置
KR100965884B1 (ko) * 2004-01-14 2010-06-24 삼성전자주식회사 광픽업
JP2006048807A (ja) 2004-08-03 2006-02-16 Ricoh Co Ltd 光メモリ装置
JP2006244535A (ja) * 2005-02-28 2006-09-14 Toshiba Corp 光ヘッド装置および光ディスク装置
KR101187710B1 (ko) * 2005-10-24 2012-10-10 삼성전자주식회사 광픽업 장치

Also Published As

Publication number Publication date
CN101221781A (zh) 2008-07-16
KR100846806B1 (ko) 2008-07-16
KR20080065214A (ko) 2008-07-11
JP2010205411A (ja) 2010-09-16
CN101221781B (zh) 2011-11-16
DE602007007428D1 (de) 2010-08-12
HK1120156A1 (en) 2009-03-20

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