CN1039059C - 偏振分束器及采用该分束器的磁光读装置 - Google Patents

偏振分束器及采用该分束器的磁光读装置 Download PDF

Info

Publication number
CN1039059C
CN1039059C CN94190520A CN94190520A CN1039059C CN 1039059 C CN1039059 C CN 1039059C CN 94190520 A CN94190520 A CN 94190520A CN 94190520 A CN94190520 A CN 94190520A CN 1039059 C CN1039059 C CN 1039059C
Authority
CN
China
Prior art keywords
polarization
heap
refractive index
compensation
beam splitter
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
CN94190520A
Other languages
English (en)
Chinese (zh)
Other versions
CN1112797A (zh
Inventor
J·范德瓦尔
W·G·奥费
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 BE9300661A external-priority patent/BE1007250A3/nl
Application filed by Philips Electronics NV filed Critical Philips Electronics NV
Publication of CN1112797A publication Critical patent/CN1112797A/zh
Application granted granted Critical
Publication of CN1039059C publication Critical patent/CN1039059C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Polarising Elements (AREA)
  • Optical Head (AREA)
CN94190520A 1993-06-25 1994-06-23 偏振分束器及采用该分束器的磁光读装置 Expired - Fee Related CN1039059C (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
BE9300661 1993-06-25
BE9300661A BE1007250A3 (nl) 1993-06-25 1993-06-25 Polariserende bundeldeler.
EP94201684.1 1994-06-13
EP94201684 1994-06-13

Publications (2)

Publication Number Publication Date
CN1112797A CN1112797A (zh) 1995-11-29
CN1039059C true CN1039059C (zh) 1998-07-08

Family

ID=25662742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN94190520A Expired - Fee Related CN1039059C (zh) 1993-06-25 1994-06-23 偏振分束器及采用该分束器的磁光读装置

Country Status (6)

Country Link
US (1) US6014255A (enExample)
JP (1) JPH08503315A (enExample)
KR (1) KR950703164A (enExample)
CN (1) CN1039059C (enExample)
TW (1) TW277106B (enExample)
WO (1) WO1995000873A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102809830A (zh) * 2012-08-30 2012-12-05 武汉光迅科技股份有限公司 一种具有光程差补偿结构的偏振分束器

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19580247T1 (de) * 1994-02-07 1996-03-21 Nikon Corp Optisches Glas für ein optisches Polarisationssystem, Herstellungsverfahren dafür und Polarisationsstrahlteiler
US6304395B1 (en) * 1998-03-09 2001-10-16 Asahi Kogaku Kogyo Kabushiki Kaisha Viewing optical instrument having roof prism and a roof prism
JPH11306579A (ja) * 1998-04-15 1999-11-05 Sony Corp ビームスプリッタ及び光ピックアップ装置
JP3332879B2 (ja) * 1998-12-02 2002-10-07 キヤノン株式会社 ダイクロイックミラー
JP3782916B2 (ja) * 2000-02-18 2006-06-07 富士通株式会社 光情報記憶装置および光学素子
JP2002071946A (ja) * 2000-08-30 2002-03-12 Nippon Sheet Glass Co Ltd 偏光フィルタおよびそれを用いた光学装置
JP2003172824A (ja) * 2001-09-25 2003-06-20 Sony Corp 偏光ビームスプリッタ及びこれを用いた偏光子
JP3812527B2 (ja) * 2002-09-26 2006-08-23 コニカミノルタオプト株式会社 偏光ビームスプリッタ
JP4207554B2 (ja) * 2002-12-12 2009-01-14 住友電気工業株式会社 光射出面上に回折光学膜を有する発光素子とその製造方法
JP2005055568A (ja) * 2003-08-01 2005-03-03 Minolta Co Ltd 偏光ビームスプリッター
JP2005084382A (ja) * 2003-09-09 2005-03-31 Minolta Co Ltd 偏光ビームスプリッター膜の位相シフト調整方法
JP2005107317A (ja) * 2003-09-30 2005-04-21 Minolta Co Ltd 偏光分離膜および偏光分離プリズム
CN100401398C (zh) 2004-01-07 2008-07-09 索尼株式会社 光盘设备
JP4523512B2 (ja) * 2005-08-02 2010-08-11 シャープ株式会社 光学ヘッドおよびディスク再生装置
US8817371B1 (en) * 2008-08-01 2014-08-26 Simon Andrew Boothroyd Polarizing beam splitters
TWI380481B (en) * 2009-01-13 2012-12-21 Huga Optotech Inc Light-emitting diode with high light-emitting efficiency
US8305502B2 (en) 2009-11-11 2012-11-06 Eastman Kodak Company Phase-compensated thin-film beam combiner
TWI433091B (zh) 2010-11-26 2014-04-01 Novatek Microelectronics Corp 驅動裝置及顯示面板
KR102051103B1 (ko) * 2012-11-07 2019-12-03 삼성디스플레이 주식회사 유기 발광 표시 장치
CN110737099B (zh) * 2018-07-18 2022-02-11 福州高意光学有限公司 偏振无关的分束器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733926A (en) * 1986-11-10 1988-03-29 Lockheed Missiles & Space Company, Inc. Infrared polarizing beamsplitter
EP0336334A2 (fr) * 1988-04-08 1989-10-11 Alcatel Cit Polariseur à couches diélectriques
JPH0264917A (ja) * 1988-08-30 1990-03-05 Nhk Spring Co Ltd 光磁気記録装置用光学ヘッド構造

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2504734B2 (ja) * 1983-11-08 1996-06-05 シャープ株式会社 光磁気記憶装置の光学装置
DE3581033D1 (de) * 1984-09-04 1991-02-07 Matsushita Electric Industrial Co Ltd Geraet zum antreiben eines optischen speichermediums.
US5249171A (en) * 1984-12-30 1993-09-28 Olympus Optical Company Ltd. Opto-magnetic pick-up device including phase difference correcting means
DE3781157T2 (de) * 1987-10-30 1993-03-04 Ibm Deutschland Buendelanalyse-vorrichtung fuer geraete zur optischen aufzeichnung.
US4896952A (en) * 1988-04-22 1990-01-30 International Business Machines Corporation Thin film beamsplitter optical element for use in an image-forming lens system
JP2982965B2 (ja) * 1989-09-18 1999-11-29 オリンパス光学工業株式会社 光学式読み取り装置
US5400179A (en) * 1992-02-18 1995-03-21 Asahi Kogaku Kogyo Kabushiki Kaisha Optical multilayer thin film and beam splitter
EP0601862A1 (en) * 1992-12-09 1994-06-15 Omron Corporation An optical device formed of multiple film layers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733926A (en) * 1986-11-10 1988-03-29 Lockheed Missiles & Space Company, Inc. Infrared polarizing beamsplitter
EP0336334A2 (fr) * 1988-04-08 1989-10-11 Alcatel Cit Polariseur à couches diélectriques
JPH0264917A (ja) * 1988-08-30 1990-03-05 Nhk Spring Co Ltd 光磁気記録装置用光学ヘッド構造

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102809830A (zh) * 2012-08-30 2012-12-05 武汉光迅科技股份有限公司 一种具有光程差补偿结构的偏振分束器

Also Published As

Publication number Publication date
WO1995000873A1 (en) 1995-01-05
US6014255A (en) 2000-01-11
KR950703164A (ko) 1995-08-23
TW277106B (enExample) 1996-06-01
CN1112797A (zh) 1995-11-29
JPH08503315A (ja) 1996-04-09

Similar Documents

Publication Publication Date Title
CN1039059C (zh) 偏振分束器及采用该分束器的磁光读装置
US6819372B2 (en) Back light device with diffusing sheet for a liquid crystal display apparatus
CN1091874C (zh) 光纤耦合干涉式位移传感器
US5574595A (en) Optical isolator
US6407868B1 (en) Cross dichroic prism, method of making the same, and full-color projector using the same
US5973833A (en) High efficiency polarizing converter
US20080219024A1 (en) Backlight unit with reduced color separation including a polarizing turning film
JP5265757B2 (ja) プリズムビームスプリッタ
CN1210627A (zh) 带有单片棱镜组件的外部腔体半导体激光器
GB2239707A (en) Flat plate focus sensing apparatus
CN109116623A (zh) 偏光结构、显示面板及显示装置
CN101334520B (zh) 消偏振反射镜
CN1357772A (zh) 光学装置及使用它的整体分光仪器
CN109085558A (zh) 相控阵激光雷达及其控制方法
CN1380570A (zh) 光学仪器和波长复用光学记录头
CN1278156C (zh) 光学双折射装置、光学系统和环形器
CN109188591A (zh) 偏光片和显示装置
CN201233470Y (zh) 消偏振反射镜
US20060044566A1 (en) Interferometric Optical Apparatus And Method Using Wavefront Division
CN1058086C (zh) 非偏振光分光器
CA2137972C (en) Beam splitter and optical coupler using the same
CN1117184A (zh) 用于检测光学拾取系统中调焦误差的象散透镜
US5805749A (en) Highly stable photoreceiver
US6353691B1 (en) Method and system for splitting or combining optical signal
JPH097219A (ja) 光メモリ用マルチビームトラック装置及び方法

Legal Events

Date Code Title Description
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
C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: PATENTEE; FROM: N.V. PHILIPS OPTICAL LAMP LTD., CO. TO: ROYAL PHILIPS ELECTRONICS CO., LTD.

CP01 Change in the name or title of a patent holder

Patentee after: Koninklike Philips Electronics N. V.

Patentee before: Philips Electronics N. V.

C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee