TW200705429A - Optical-path compensating device and optical pickup using the device - Google Patents

Optical-path compensating device and optical pickup using the device

Info

Publication number
TW200705429A
TW200705429A TW095121119A TW95121119A TW200705429A TW 200705429 A TW200705429 A TW 200705429A TW 095121119 A TW095121119 A TW 095121119A TW 95121119 A TW95121119 A TW 95121119A TW 200705429 A TW200705429 A TW 200705429A
Authority
TW
Taiwan
Prior art keywords
optical
wavelength
wavelengths
path
plate
Prior art date
Application number
TW095121119A
Other languages
English (en)
Inventor
Hiroshi Matsumoto
Original Assignee
Epson Toyocom Corp
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 Epson Toyocom Corp filed Critical Epson Toyocom Corp
Publication of TW200705429A publication Critical patent/TW200705429A/zh

Links

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
    • G11B7/1365—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
    • G11B7/135—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1369—Active plates, e.g. liquid crystal panels or electrostrictive elements
    • 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)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optical Head (AREA)
  • Polarising Elements (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
TW095121119A 2005-06-14 2006-06-14 Optical-path compensating device and optical pickup using the device TW200705429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005174373A JP2006351086A (ja) 2005-06-14 2005-06-14 光路補正装置とこれを用いた光ピックアップ

Publications (1)

Publication Number Publication Date
TW200705429A true TW200705429A (en) 2007-02-01

Family

ID=36992583

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095121119A TW200705429A (en) 2005-06-14 2006-06-14 Optical-path compensating device and optical pickup using the device

Country Status (6)

Country Link
US (1) US20060278819A1 (zh)
EP (1) EP1736974A3 (zh)
JP (1) JP2006351086A (zh)
KR (1) KR20060130512A (zh)
CN (1) CN1881007A (zh)
TW (1) TW200705429A (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007035204A (ja) * 2005-07-29 2007-02-08 Hitachi Media Electoronics Co Ltd 光ピックアップ及び光ディスク装置
JP5316409B2 (ja) * 2007-07-27 2013-10-16 旭硝子株式会社 位相差素子および光ヘッド装置
JP5381400B2 (ja) * 2009-02-06 2014-01-08 セイコーエプソン株式会社 量子干渉装置、原子発振器、および磁気センサー
US8237514B2 (en) 2009-02-06 2012-08-07 Seiko Epson Corporation Quantum interference device, atomic oscillator, and magnetic sensor
JP5131244B2 (ja) * 2009-05-15 2013-01-30 旭硝子株式会社 積層位相板及び光ヘッド装置
JP5429469B2 (ja) 2009-09-07 2014-02-26 セイコーエプソン株式会社 量子干渉装置、原子発振器及び磁気センサー
JP6234208B2 (ja) * 2013-12-18 2017-11-22 マイクロソフト テクノロジー ライセンシング，エルエルシー 波長通過のためのｎｅｄ偏光システム
CN104977722A (zh) * 2014-04-03 2015-10-14 光宝科技股份有限公司 投影装置
CN105911460B (zh) * 2016-06-21 2018-08-07 电子科技大学 具有同步信号自校准功能的多通道逻辑分析仪
KR102036576B1 (ko) 2018-03-20 2019-10-25 박희태 스마트폰 세척기
CN109027974B (zh) * 2018-06-20 2020-05-26 Oppo（重庆）智能科技有限公司 一种光源位置调整装置及调整方法
CN115372928B (zh) * 2022-10-21 2023-02-28 成都信息工程大学 一种基于i/q数据的dcnn电磁干扰识别方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07230061A (ja) * 1994-02-17 1995-08-29 Fuji Photo Film Co Ltd 偏光コヒーレント合波レーザ
US6650612B1 (en) * 1999-03-31 2003-11-18 Matsushita Electric Industrial Co., Ltd. Optical head and recording reproduction method
JP2002015448A (ja) * 2000-06-29 2002-01-18 Matsushita Electric Ind Co Ltd 光学素子、光源装置、光ヘッド装置および光情報処理装置
US6636651B2 (en) * 2001-06-08 2003-10-21 Koncent Communication, Inc. Four-port bidirectional optical circulator
WO2005015554A1 (ja) * 2003-08-12 2005-02-17 Konica Minolta Opto, Inc. 光ピックアップ装置
KR20050022950A (ko) * 2003-08-27 2005-03-09 삼성전기주식회사 아크로매틱 프리즘을 구비한 광픽업장치
JP2005302082A (ja) * 2004-04-06 2005-10-27 Toyo Commun Equip Co Ltd 光路補正装置とこれを用いた光ピックアップ

Also Published As

Publication number Publication date
JP2006351086A (ja) 2006-12-28
EP1736974A3 (en) 2009-04-29
EP1736974A2 (en) 2006-12-27
KR20060130512A (ko) 2006-12-19
US20060278819A1 (en) 2006-12-14
CN1881007A (zh) 2006-12-20

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