CA2515141A1 - Polarization recovery system using redirection - Google Patents

Polarization recovery system using redirection Download PDF

Info

Publication number
CA2515141A1
CA2515141A1 CA002515141A CA2515141A CA2515141A1 CA 2515141 A1 CA2515141 A1 CA 2515141A1 CA 002515141 A CA002515141 A CA 002515141A CA 2515141 A CA2515141 A CA 2515141A CA 2515141 A1 CA2515141 A1 CA 2515141A1
Authority
CA
Canada
Prior art keywords
light
polarization
reflector
output
recovery apparatus
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.)
Abandoned
Application number
CA002515141A
Other languages
English (en)
French (fr)
Inventor
Kenneth K. Li
Seiji Inatsugu
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.)
Wavien Inc
Original Assignee
Wavien, Inc.
Kenneth K. Li
Seiji Inatsugu
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 Wavien, Inc., Kenneth K. Li, Seiji Inatsugu filed Critical Wavien, Inc.
Publication of CA2515141A1 publication Critical patent/CA2515141A1/en
Abandoned legal-status Critical Current

Links

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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0994—Fibers, light pipes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7441—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of liquid crystal cells
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA002515141A 2003-02-21 2004-02-20 Polarization recovery system using redirection Abandoned CA2515141A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US44847103P 2003-02-21 2003-02-21
US60/448,471 2003-02-21
US46939303P 2003-05-12 2003-05-12
US60/469,393 2003-05-12
PCT/US2004/004866 WO2004077102A2 (en) 2003-02-21 2004-02-20 Polarization recovery system using redirection

Publications (1)

Publication Number Publication Date
CA2515141A1 true CA2515141A1 (en) 2004-09-10

Family

ID=32930484

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002515141A Abandoned CA2515141A1 (en) 2003-02-21 2004-02-20 Polarization recovery system using redirection

Country Status (6)

Country Link
EP (1) EP1597514A4 (de)
JP (1) JP2006518486A (de)
KR (1) KR20050103500A (de)
CA (1) CA2515141A1 (de)
TW (1) TWI238901B (de)
WO (1) WO2004077102A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4988209B2 (ja) * 2006-01-13 2012-08-01 三洋電機株式会社 ロッド固定構造及び投写型映像表示装置
EP3021072B1 (de) * 2014-11-14 2016-09-28 Sick Ag Beleuchtungsvorrichtung und Verfahren zur Projektion eines Beleuchtungsmusters

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63197913A (ja) * 1987-02-13 1988-08-16 Nec Corp 偏光変換素子
JPH0488301A (ja) * 1990-08-01 1992-03-23 Canon Inc 偏光変換モジュール
JP2850891B2 (ja) * 1996-12-10 1999-01-27 日本電気株式会社 光フィルタモジュールとこれを用いた光増幅装置
US5884991A (en) * 1997-02-18 1999-03-23 Torch Technologies Llc LCD projection system with polarization doubler
US6288840B1 (en) * 1999-06-22 2001-09-11 Moxtek Imbedded wire grid polarizer for the visible spectrum
US6587269B2 (en) * 2000-08-24 2003-07-01 Cogent Light Technologies Inc. Polarization recovery system for projection displays

Also Published As

Publication number Publication date
JP2006518486A (ja) 2006-08-10
EP1597514A4 (de) 2009-08-26
TW200422665A (en) 2004-11-01
EP1597514A2 (de) 2005-11-23
KR20050103500A (ko) 2005-10-31
WO2004077102A2 (en) 2004-09-10
TWI238901B (en) 2005-09-01
WO2004077102A3 (en) 2005-05-12

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued