DE69424204T2 - Optischer Abtasthopf und doppelbrechender Beugungsgitterpolarisator sowie Hologrammpolarisator dafür. - Google Patents

Optischer Abtasthopf und doppelbrechender Beugungsgitterpolarisator sowie Hologrammpolarisator dafür.

Info

Publication number
DE69424204T2
DE69424204T2 DE69424204T DE69424204T DE69424204T2 DE 69424204 T2 DE69424204 T2 DE 69424204T2 DE 69424204 T DE69424204 T DE 69424204T DE 69424204 T DE69424204 T DE 69424204T DE 69424204 T2 DE69424204 T2 DE 69424204T2
Authority
DE
Germany
Prior art keywords
polarizer
hologram
therefor
diffraction grating
optical scanning
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 - Lifetime
Application number
DE69424204T
Other languages
English (en)
Other versions
DE69424204D1 (de
Inventor
Yuzo Ono
Akitomo Oba
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP5026376A external-priority patent/JP2570563B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69424204D1 publication Critical patent/DE69424204D1/de
Application granted granted Critical
Publication of DE69424204T2 publication Critical patent/DE69424204T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G11B7/1353—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1833—Diffraction gratings comprising birefringent materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/32—Holograms used as optical elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10541—Heads for reproducing
    • G11B11/10543—Heads for reproducing using optical beam of radiation
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
DE69424204T 1993-02-16 1994-02-16 Optischer Abtasthopf und doppelbrechender Beugungsgitterpolarisator sowie Hologrammpolarisator dafür. Expired - Lifetime DE69424204T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5026376A JP2570563B2 (ja) 1993-02-16 1993-02-16 光ヘッド装置
JP3386293 1993-02-24

Publications (2)

Publication Number Publication Date
DE69424204D1 DE69424204D1 (de) 2000-06-08
DE69424204T2 true DE69424204T2 (de) 2000-09-07

Family

ID=26364154

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69434570T Expired - Lifetime DE69434570T2 (de) 1993-02-16 1994-02-16 Optischer Abtastkopf und doppelbrechendes polarisiendes Beugungsgitter und polarizierendes Hologramm
DE69424204T Expired - Lifetime DE69424204T2 (de) 1993-02-16 1994-02-16 Optischer Abtasthopf und doppelbrechender Beugungsgitterpolarisator sowie Hologrammpolarisator dafür.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69434570T Expired - Lifetime DE69434570T2 (de) 1993-02-16 1994-02-16 Optischer Abtastkopf und doppelbrechendes polarisiendes Beugungsgitter und polarizierendes Hologramm

Country Status (3)

Country Link
US (3) US5535055A (de)
EP (2) EP0911822B1 (de)
DE (2) DE69434570T2 (de)

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US6765724B1 (en) * 2001-01-16 2004-07-20 Holotek, Llc Diffraction grating-based wavelength selection unit having improved polarization dependent performance
DE10197178T1 (de) * 2001-02-01 2003-12-18 Fujitsu Ltd Optische Anordnung und optische Speicheranordnung
US7046892B2 (en) * 2001-06-22 2006-05-16 Nippon Telegraph And Telephone Corporation Optical waveguide, holographic medium, holographic storage and retrieval method and system
US6998620B2 (en) * 2001-08-13 2006-02-14 Lambda Physik Ag Stable energy detector for extreme ultraviolet radiation detection
KR100403597B1 (ko) * 2001-08-30 2003-10-30 삼성전자주식회사 홀로그램이 형성된 빔스프리터를 구비하는 광픽업장치 및이를 이용한 광축보정방법
JP2004127482A (ja) * 2002-08-07 2004-04-22 Sharp Corp 光ピックアップ装置
JP2004146031A (ja) * 2002-08-28 2004-05-20 Sharp Corp 半導体レーザ装置および光ピックアップ装置
JP4200026B2 (ja) * 2003-02-06 2008-12-24 新オプトウエア株式会社 光情報記録媒体
JP2005129186A (ja) * 2003-10-27 2005-05-19 Konica Minolta Opto Inc 光ピックアップ装置
JP4155166B2 (ja) * 2003-11-10 2008-09-24 コニカミノルタオプト株式会社 光ピックアップ装置
JP2006114165A (ja) * 2004-10-18 2006-04-27 Hitachi Media Electoronics Co Ltd 光情報再生装置
US7993756B2 (en) * 2005-05-04 2011-08-09 Viance, Llc Long-chain quaternary ammonium compounds as wood treatment agents
KR100803592B1 (ko) * 2005-09-03 2008-02-19 삼성전자주식회사 호환형 광픽업 및 이를 채용한 광 기록 및/또는 재생기기
JP2008059646A (ja) * 2006-08-30 2008-03-13 Funai Electric Co Ltd 光ピックアップ
FR2945159B1 (fr) * 2009-04-29 2016-04-01 Horiba Jobin Yvon Sas Reseau de diffraction metallique en reflexion a haute tenue au flux en regime femtoseconde, systeme comprenant un tel reseau et procede d'amelioration du seuil d'endommagement d'un reseau de diffraction metallique
US20120224263A1 (en) * 2011-03-02 2012-09-06 Omnivision Technologies, Inc. Optical Systems Utilizing Diffraction Gratings To Remove Undesirable Light From A Field Of View
WO2020185954A1 (en) 2019-03-12 2020-09-17 Magic Leap, Inc. Waveguides with high index materials and methods of fabrication thereof
CN113109030B (zh) * 2021-04-09 2023-08-22 苏州长光华芯光电技术股份有限公司 一种光路准直调试系统和光路准直调试方法
CN113866993A (zh) * 2021-11-10 2021-12-31 中企科信技术股份有限公司 一种GaAs基偏振光分束器及其制备方法

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Also Published As

Publication number Publication date
EP0612068A2 (de) 1994-08-24
EP0612068A3 (de) 1995-12-06
US5535055A (en) 1996-07-09
DE69434570D1 (de) 2006-01-12
DE69434570T2 (de) 2006-09-14
DE69424204D1 (de) 2000-06-08
EP0911822A2 (de) 1999-04-28
US5659531A (en) 1997-08-19
EP0911822B1 (de) 2005-12-07
US5883741A (en) 1999-03-16
EP0612068B1 (de) 2000-05-03
EP0911822A3 (de) 2004-09-22

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