CN100421160C - 激光头装置 - Google Patents

激光头装置 Download PDF

Info

Publication number
CN100421160C
CN100421160C CNB021034451A CN02103445A CN100421160C CN 100421160 C CN100421160 C CN 100421160C CN B021034451 A CNB021034451 A CN B021034451A CN 02103445 A CN02103445 A CN 02103445A CN 100421160 C CN100421160 C CN 100421160C
Authority
CN
China
Prior art keywords
light
laser
polarized light
prism
recording medium
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
CNB021034451A
Other languages
English (en)
Chinese (zh)
Other versions
CN1373475A (zh
Inventor
柳泽克重
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.)
Nidec Instruments Corp
Original Assignee
Sankyo Seiki Manufacturing 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 Sankyo Seiki Manufacturing Co Ltd filed Critical Sankyo Seiki Manufacturing Co Ltd
Publication of CN1373475A publication Critical patent/CN1373475A/zh
Application granted granted Critical
Publication of CN100421160C publication Critical patent/CN100421160C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • 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
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
CNB021034451A 2001-02-02 2002-02-01 激光头装置 Expired - Fee Related CN100421160C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001026339A JP2002230818A (ja) 2001-02-02 2001-02-02 光ヘッド装置
JP026339/01 2001-02-02

Publications (2)

Publication Number Publication Date
CN1373475A CN1373475A (zh) 2002-10-09
CN100421160C true CN100421160C (zh) 2008-09-24

Family

ID=18891172

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021034451A Expired - Fee Related CN100421160C (zh) 2001-02-02 2002-02-01 激光头装置

Country Status (3)

Country Link
US (1) US6961298B2 (enExample)
JP (1) JP2002230818A (enExample)
CN (1) CN100421160C (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006140751A (ja) * 2004-11-12 2006-06-01 Hitachi Ltd ディスクビデオカメラ
KR20080005299A (ko) * 2005-05-03 2008-01-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 다중 방사빔 광학 주사장치
JP4787559B2 (ja) * 2005-07-26 2011-10-05 ルネサスエレクトロニクス株式会社 半導体装置およびその製造方法
JP2008299980A (ja) * 2007-06-01 2008-12-11 Hitachi Media Electoronics Co Ltd 光ピックアップ及び光ディスク装置
JP2011181166A (ja) * 2010-02-05 2011-09-15 Panasonic Corp 光ピックアップ装置
JPWO2012056827A1 (ja) * 2010-10-27 2014-03-20 コニカミノルタ株式会社 光ピックアップ装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10302295A (ja) * 1997-04-23 1998-11-13 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6195315B1 (en) * 1997-07-11 2001-02-27 Ricoh Company, Ltd. Optical disk apparatus compatible with different types of mediums
US6238063B1 (en) * 1998-04-27 2001-05-29 Nikon Corporation Illumination optical apparatus and projection exposure apparatus
US6426837B1 (en) * 1999-03-22 2002-07-30 Mems Optical, Inc. Diffractive selectively polarizing beam splitter and beam routing prisms produced thereby
AU3193800A (en) * 1999-05-18 2000-12-05 Nikon Corporation Exposure method, illuminating device, and exposure system
JP3858523B2 (ja) * 1999-07-27 2006-12-13 株式会社日立製作所 対物レンズ
US6563977B1 (en) * 2000-06-27 2003-05-13 Bayspec, Inc. Compact wavelength multiplexer-demultiplexer providing low polarization sensitivity
US6462873B1 (en) * 2000-07-14 2002-10-08 Univ Hong Kong Science & Techn Polarizing beam splitter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10302295A (ja) * 1997-04-23 1998-11-13 Sankyo Seiki Mfg Co Ltd 光ピックアップ装置

Also Published As

Publication number Publication date
CN1373475A (zh) 2002-10-09
US20020105893A1 (en) 2002-08-08
US6961298B2 (en) 2005-11-01
JP2002230818A (ja) 2002-08-16

Similar Documents

Publication Publication Date Title
US7050380B2 (en) Optical element, optical pickup unit, and optical disk drive unit
US8081557B2 (en) Optical pickup apparatus
US20070127349A1 (en) Optical pickup apparatus
US6304540B1 (en) Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
TW200401279A (en) Optical pickup
JP2005141872A (ja) 光ピックアップ装置
CN100421160C (zh) 激光头装置
KR100985422B1 (ko) 2파장 광원유닛 및 광헤드 장치
JPH10308031A (ja) 光ピックアップ装置
US8493831B2 (en) Compatible optical pickup and optical recording and/or reproducing apparatus employing the same
KR100737859B1 (ko) 광 기록/재생장치
KR101046680B1 (ko) 광픽업 및 광디바이스
KR100245241B1 (ko) 듀얼 광 픽업장치
US8427924B2 (en) Optical pickup apparatus
US7466643B2 (en) Optical pickup system and information recording and/or reproducing apparatus employing the same
EP0996120A1 (en) Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
US20060118704A1 (en) Optical pickup device and optical element
JP4022820B2 (ja) 光ピックアップ装置
KR101275322B1 (ko) 광픽업 및 이를 적용한 광정보저장매체 시스템
US20030043724A1 (en) Optical pickup apparatus having beam splitter on which hologram is formed and method of compensating for deviation between optical axes using the optical pickup apparatus
US20050276179A1 (en) Optical pickup system and information recording and/or reproducing apparatus employing the same
JP2006331594A (ja) 光ピックアップ装置
JPH10208277A (ja) 光ピックアップ装置
CN1770282A (zh) 半导体激光装置及采用该半导体激光装置的光学拾取装置
JP2007035205A (ja) 光素子および光ピックアップ

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080924

Termination date: 20140201