TW200601313A - Optical disk apparatus - Google Patents

Optical disk apparatus

Info

Publication number
TW200601313A
TW200601313A TW094112867A TW94112867A TW200601313A TW 200601313 A TW200601313 A TW 200601313A TW 094112867 A TW094112867 A TW 094112867A TW 94112867 A TW94112867 A TW 94112867A TW 200601313 A TW200601313 A TW 200601313A
Authority
TW
Taiwan
Prior art keywords
optical disk
light
regions
diffraction element
polarized beam
Prior art date
Application number
TW094112867A
Other languages
English (en)
Inventor
Seiji Nishiwaki
Kazuo Momoo
Jun-Ichi Asada
Kenji Otani
Yusuke Kanda
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 TW200601313A publication Critical patent/TW200601313A/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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising 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
    • G11B7/135—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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Head (AREA)
TW094112867A 2004-04-23 2005-04-22 Optical disk apparatus TW200601313A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004127855 2004-04-23
JP2004133108 2004-04-28

Publications (1)

Publication Number Publication Date
TW200601313A true TW200601313A (en) 2006-01-01

Family

ID=35136276

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094112867A TW200601313A (en) 2004-04-23 2005-04-22 Optical disk apparatus

Country Status (3)

Country Link
US (2) US7463569B2 (zh)
KR (1) KR20060047397A (zh)
TW (1) TW200601313A (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4289213B2 (ja) * 2004-05-18 2009-07-01 日本電気株式会社 光ヘッド装置及び光学式情報記録再生装置
US7796491B2 (en) * 2004-09-29 2010-09-14 Panasonic Corporation Wavelength plate, optical element, and optical pickup
WO2006112480A1 (ja) * 2005-04-20 2006-10-26 Asahi Glass Company, Limited 位相板および光ヘッド装置
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
KR100803592B1 (ko) * 2005-09-03 2008-02-19 삼성전자주식회사 호환형 광픽업 및 이를 채용한 광 기록 및/또는 재생기기
WO2007043663A1 (ja) * 2005-10-14 2007-04-19 Matsushita Electric Industrial Co., Ltd. 光学ヘッド
JP4857796B2 (ja) * 2006-02-07 2012-01-18 船井電機株式会社 光ピックアップ装置
JP2008034070A (ja) * 2006-07-31 2008-02-14 Sharp Corp 光ピックアップ装置およびその制御方法、情報記録再生装置
JP2008276860A (ja) * 2007-04-27 2008-11-13 Hitachi Media Electoronics Co Ltd 光ピックアップ装置及び光ディスクドライブ
KR101339430B1 (ko) * 2009-12-11 2013-12-09 도시바삼성스토리지테크놀러지코리아 주식회사 광 픽업 및 이를 적용한 광 드라이브
JP6108774B2 (ja) * 2012-11-08 2017-04-05 キヤノン株式会社 レーザ装置およびそれを用いた光音響装置
WO2014091639A1 (ja) * 2012-12-12 2014-06-19 パナソニック株式会社 光ピックアップおよび光記録再生装置
US11860573B1 (en) * 2020-11-24 2024-01-02 Meta Platforms Technologies, Llc System and method for fabricating polarization holograms

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06131674A (ja) 1992-10-20 1994-05-13 Ricoh Co Ltd 光ピックアップ装置
EP0627733B1 (en) * 1993-06-02 2001-02-21 Matsushita Electric Industrial Co., Ltd. Optical head device and optical information apparatus
US5748603A (en) * 1995-12-30 1998-05-05 Lg Electronics, Inc. Optical pickup apparatus for different discs
US6324149B1 (en) * 1997-05-27 2001-11-27 Ricoh Company, Ltd. Optical-pick-up device achieving accurate positioning of objective lens and solid-immersion lens and method of forming same
JP3864584B2 (ja) 1998-10-27 2007-01-10 松下電器産業株式会社 光学式情報記録再生装置
JP4035933B2 (ja) * 1999-11-30 2008-01-23 ソニー株式会社 光ピックアップおよび記録再生装置
US7154837B2 (en) * 2000-05-31 2006-12-26 Matsushita Electric Industrial Co., Ltd. Optical pickup and optical information recording/reproducing device
JP4094501B2 (ja) * 2002-11-27 2008-06-04 シャープ株式会社 光ピックアップ装置
US7254107B2 (en) * 2003-04-07 2007-08-07 Matsushita Electric Industrial Co., Ltd. Optical head and optical recording and reproducing apparatus

Also Published As

Publication number Publication date
US20090034401A1 (en) 2009-02-05
KR20060047397A (ko) 2006-05-18
US7463569B2 (en) 2008-12-09
US20050237902A1 (en) 2005-10-27

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