CA2515141A1 - Systeme de recyclage de polarisation par redirection - Google Patents

Systeme de recyclage de polarisation par 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)
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
Individual
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 Individual filed Critical Individual
Publication of CA2515141A1 publication Critical patent/CA2515141A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938Using specific optical elements
    • G02B27/0994Fibers, light pipes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283Optical 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416Projection 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
    • H04N5/7441Projection 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/12Picture reproducers
    • H04N9/31Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141Constructional details thereof
    • H04N9/315Modulator illumination systems
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/04Prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)
CA002515141A 2003-02-21 2004-02-20 Systeme de recyclage de polarisation par redirection Abandoned CA2515141A1 (fr)

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 (fr) 2003-02-21 2004-02-20 Systeme de recyclage de polarisation par redirection

Publications (1)

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

Family

ID=32930484

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002515141A Abandoned CA2515141A1 (fr) 2003-02-21 2004-02-20 Systeme de recyclage de polarisation par redirection

Country Status (6)

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

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 (fr) * 2014-11-14 2016-09-28 Sick Ag Dispositif d'éclairage et procédé destinés à la projection d'un modèle d'éclairage

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
EP1597514A2 (fr) 2005-11-23
EP1597514A4 (fr) 2009-08-26
KR20050103500A (ko) 2005-10-31
WO2004077102A2 (fr) 2004-09-10
WO2004077102A3 (fr) 2005-05-12
TW200422665A (en) 2004-11-01
TWI238901B (en) 2005-09-01

Similar Documents

Publication Publication Date Title
US6969177B2 (en) Polarization recovery system using redirection
US7020368B2 (en) Lensed tapered optical waveguide
US7232228B2 (en) Light recovery for projection displays
US7130122B2 (en) Polarization recovery system for projection displays
US7452086B2 (en) Light pipe based projection engine
KR100482233B1 (ko) 편광 유닛, 이 편광 유닛을 이용하는 편광 조명 장치 및이 편광 조명 장치를 이용한 투사형 표시 장치
JP2008530596A (ja) 多数の光源のエテンデュー効率のよい合波
US6836576B2 (en) Polarization recovery system using light pipes
CA2515141A1 (fr) Systeme de recyclage de polarisation par redirection
CN1754063A (zh) 使用改变方向的偏振校正系统

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued