KR100846806B1 - 복층 디스크에서의 층간 간섭 신호 제거 유닛, 이를 채용한광픽업 장치 및 광 기록/재생 장치 - Google Patents

복층 디스크에서의 층간 간섭 신호 제거 유닛, 이를 채용한광픽업 장치 및 광 기록/재생 장치 Download PDF

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Publication number
KR100846806B1
KR100846806B1 KR1020070049958A KR20070049958A KR100846806B1 KR 100846806 B1 KR100846806 B1 KR 100846806B1 KR 1020070049958 A KR1020070049958 A KR 1020070049958A KR 20070049958 A KR20070049958 A KR 20070049958A KR 100846806 B1 KR100846806 B1 KR 100846806B1
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KR
South Korea
Prior art keywords
light
region
incident light
diffraction
disk
Prior art date
Application number
KR1020070049958A
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English (en)
Korean (ko)
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KR20080065214A (ko
Inventor
유장훈
윤용한
박수한
전영선
김명석
Original Assignee
삼성전자주식회사
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.)
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Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to CN2007101971277A priority Critical patent/CN101221781B/zh
Priority to DE602007007428T priority patent/DE602007007428D1/de
Priority to EP07123641A priority patent/EP1942500B1/en
Priority to JP2007337478A priority patent/JP2008171544A/ja
Priority to US11/970,638 priority patent/US7924682B2/en
Publication of KR20080065214A publication Critical patent/KR20080065214A/ko
Application granted granted Critical
Publication of KR100846806B1 publication Critical patent/KR100846806B1/ko
Priority to HK09100402.3A priority patent/HK1120156A1/xx
Priority to JP2010113505A priority patent/JP4886058B2/ja

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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)
KR1020070049958A 2007-01-08 2007-05-22 복층 디스크에서의 층간 간섭 신호 제거 유닛, 이를 채용한광픽업 장치 및 광 기록/재생 장치 KR100846806B1 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN2007101971277A CN101221781B (zh) 2007-01-08 2007-12-05 去除多层盘中串扰的单元、光拾取器、光记录/再现设备
DE602007007428T DE602007007428D1 (de) 2007-01-08 2007-12-19 Optischer Lesekopf mit Einheit zum Entfernen von Übersprechungen auf einem mehrschichtigen Datenträger und optische Aufzeichnungs- und/oder Wiedergabevorrichtung mit optischem Lesekopf
EP07123641A EP1942500B1 (en) 2007-01-08 2007-12-19 Optical pickup including unit to remove crosstalk in multi-layered disk, and optical recording and/or reproducing apparatus including the optical pickup
JP2007337478A 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
US11/970,638 US7924682B2 (en) 2007-01-08 2008-01-08 Unit to remove crosstalk in multi-layered disk, optical pickup including the unit, and optical recording and/or reproducing apparatus including the optical pickup
HK09100402.3A HK1120156A1 (en) 2007-01-08 2009-01-15 Unit to remove crosstalk in multi-layered disk, optical pickup including the unit, and optical recording and/or reproducing apparatus including the optical pickup
JP2010113505A 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

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070002179 2007-01-08
KR20070002179 2007-01-08

Publications (2)

Publication Number Publication Date
KR20080065214A KR20080065214A (ko) 2008-07-11
KR100846806B1 true KR100846806B1 (ko) 2008-07-16

Family

ID=39631555

Family Applications (1)

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

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)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08147750A (ja) * 1994-11-15 1996-06-07 Nec Corp 光ヘッド装置
JPH1069659A (ja) 1996-07-31 1998-03-10 Daewoo Electron Co Ltd 光ピックアップシステム
KR20010048963A (ko) * 1999-11-30 2001-06-15 윤종용 고밀도 광집속을 위한 대물렌즈 및 이를 채용한광픽업장치 및 광디스크
JP2006048807A (ja) 2004-08-03 2006-02-16 Ricoh Co Ltd 光メモリ装置
KR20070044275A (ko) * 2005-10-24 2007-04-27 삼성전자주식회사 광픽업 장치

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4281187B2 (ja) * 1999-03-31 2009-06-17 旭硝子株式会社 光ヘッド装置
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
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08147750A (ja) * 1994-11-15 1996-06-07 Nec Corp 光ヘッド装置
JPH1069659A (ja) 1996-07-31 1998-03-10 Daewoo Electron Co Ltd 光ピックアップシステム
KR20010048963A (ko) * 1999-11-30 2001-06-15 윤종용 고밀도 광집속을 위한 대물렌즈 및 이를 채용한광픽업장치 및 광디스크
JP2006048807A (ja) 2004-08-03 2006-02-16 Ricoh Co Ltd 光メモリ装置
KR20070044275A (ko) * 2005-10-24 2007-04-27 삼성전자주식회사 광픽업 장치

Also Published As

Publication number Publication date
CN101221781A (zh) 2008-07-16
KR20080065214A (ko) 2008-07-11
JP2010205411A (ja) 2010-09-16
CN101221781B (zh) 2011-11-16
DE602007007428D1 (de) 2010-08-12
JP4886058B2 (ja) 2012-02-29
HK1120156A1 (en) 2009-03-20

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