CN101346763A - 拾光器装置 - Google Patents

拾光器装置 Download PDF

Info

Publication number
CN101346763A
CN101346763A CNA2007800009644A CN200780000964A CN101346763A CN 101346763 A CN101346763 A CN 101346763A CN A2007800009644 A CNA2007800009644 A CN A2007800009644A CN 200780000964 A CN200780000964 A CN 200780000964A CN 101346763 A CN101346763 A CN 101346763A
Authority
CN
China
Prior art keywords
light
diffraction
pickup device
optical pickup
information recording
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.)
Pending
Application number
CNA2007800009644A
Other languages
English (en)
Chinese (zh)
Inventor
西本雅彦
中西直树
小野将之
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN101346763A publication Critical patent/CN101346763A/zh
Pending legal-status Critical Current

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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
    • 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
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • 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
    • 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
    • G11B7/0901—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 track following only
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
CNA2007800009644A 2006-03-30 2007-03-08 拾光器装置 Pending CN101346763A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006096121A JP2007272980A (ja) 2006-03-30 2006-03-30 光ピックアップ装置
JP096121/2006 2006-03-30

Publications (1)

Publication Number Publication Date
CN101346763A true CN101346763A (zh) 2009-01-14

Family

ID=38563255

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007800009644A Pending CN101346763A (zh) 2006-03-30 2007-03-08 拾光器装置

Country Status (5)

Country Link
US (1) US20090168628A1 (enExample)
JP (1) JP2007272980A (enExample)
CN (1) CN101346763A (enExample)
TW (1) TW200746118A (enExample)
WO (1) WO2007113983A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5007196B2 (ja) * 2007-10-22 2012-08-22 株式会社日立メディアエレクトロニクス 光ピックアップ装置
WO2009072179A1 (ja) * 2007-12-03 2009-06-11 Pioneer Corporation 記録装置及び方法、コンピュータプログラム、並びに記録媒体
KR101330201B1 (ko) * 2010-07-12 2013-11-15 도시바삼성스토리지테크놀러지코리아 주식회사 광 픽업 장치 및 이를 적용한 광 디스크 드라이브
US9361927B2 (en) * 2012-12-12 2016-06-07 Panasonic Intellectual Property Management Co., Ltd. Optical pickup and optical recording and reproducing device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09180244A (ja) * 1995-12-21 1997-07-11 Victor Co Of Japan Ltd ２層光ディスクのピックアップ装置
EP1231603A4 (en) * 1999-11-09 2007-07-11 Matsushita Electric Industrial Co Ltd PHOTOELECTRONIC DEVICE
JP2003099975A (ja) * 2001-09-25 2003-04-04 Olympus Optical Co Ltd 多層光記録再生装置
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
JP2006073132A (ja) * 2004-09-03 2006-03-16 Ricoh Co Ltd 光ピックアップ装置・光源側ユニットおよび多層記録媒体ドライブ装置

Also Published As

Publication number Publication date
US20090168628A1 (en) 2009-07-02
TW200746118A (en) 2007-12-16
WO2007113983A1 (ja) 2007-10-11
JP2007272980A (ja) 2007-10-18

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Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication