WO2002063390A3 - An illumination engine for a projection display using a tapered light pipe - Google Patents

An illumination engine for a projection display using a tapered light pipe Download PDF

Info

Publication number
WO2002063390A3
WO2002063390A3 PCT/US2002/002869 US0202869W WO02063390A3 WO 2002063390 A3 WO2002063390 A3 WO 2002063390A3 US 0202869 W US0202869 W US 0202869W WO 02063390 A3 WO02063390 A3 WO 02063390A3
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
light pipe
tapered light
collects
projection display
Prior art date
Application number
PCT/US2002/002869
Other languages
French (fr)
Other versions
WO2002063390A2 (en
Inventor
Kenneth K Li
Original Assignee
Cogent Light Tech
Kenneth K Li
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 Cogent Light Tech, Kenneth K Li filed Critical Cogent Light Tech
Priority to AU2002240203A priority Critical patent/AU2002240203A1/en
Priority to EP02706096A priority patent/EP1364252A2/en
Priority to KR10-2003-7010283A priority patent/KR20030082583A/en
Priority to JP2002563073A priority patent/JP2004519010A/en
Priority to MXPA03006835A priority patent/MXPA03006835A/en
Priority to CA002435400A priority patent/CA2435400A1/en
Publication of WO2002063390A2 publication Critical patent/WO2002063390A2/en
Publication of WO2002063390A3 publication Critical patent/WO2002063390A3/en

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
    • 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
    • G02B27/285—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 comprising arrays of elements, e.g. microprisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/208—Homogenising, shaping of the illumination light
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S385/00—Optical waveguides
    • Y10S385/901—Illuminating or display apparatus

Abstract

An illumination engine for a projection display using a tapered light pipe(718) including a reflector having first and second focal points. A source of electro-magnetic radiation disposed proximate to the first focal point of the reflector emits rays of radiation that reflect from the reflector toward the second focal point. A tapered light pipe(718) collects and transmits substantially all of the radiation converged at the second focal point(722), adjusting the numerical aperture of the radiation, but curving the surface formed by the images of the radiation. A straight light pipe(724) or a lens collects and transmits substantially all of the radiation transmitted by the tapered light pipe , flattening the surface formed by the images of the radiation. A condenser lens(707) collects and transmits all of the radiation transmitted by the contoured delay element to a polarizing beam splitter(740) and a projection system (738).
PCT/US2002/002869 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe WO2002063390A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2002240203A AU2002240203A1 (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe
EP02706096A EP1364252A2 (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe
KR10-2003-7010283A KR20030082583A (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe
JP2002563073A JP2004519010A (en) 2001-02-05 2002-02-04 Lighting engine for projection display using tapered light pipe
MXPA03006835A MXPA03006835A (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe.
CA002435400A CA2435400A1 (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US26588901P 2001-02-05 2001-02-05
US60/265,889 2001-02-05
US28698201P 2001-04-30 2001-04-30
US60/286,982 2001-04-30
US31310601P 2001-08-20 2001-08-20
US60/313,106 2001-08-20
US32932001P 2001-10-16 2001-10-16
US60/329,320 2001-10-16

Publications (2)

Publication Number Publication Date
WO2002063390A2 WO2002063390A2 (en) 2002-08-15
WO2002063390A3 true WO2002063390A3 (en) 2002-11-28

Family

ID=27500870

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/002869 WO2002063390A2 (en) 2001-02-05 2002-02-04 An illumination engine for a projection display using a tapered light pipe

Country Status (10)

Country Link
US (1) US6739726B2 (en)
EP (1) EP1364252A2 (en)
JP (1) JP2004519010A (en)
KR (1) KR20030082583A (en)
CN (1) CN1491373A (en)
AU (1) AU2002240203A1 (en)
CA (1) CA2435400A1 (en)
MX (1) MXPA03006835A (en)
TW (1) TW548508B (en)
WO (1) WO2002063390A2 (en)

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US7055967B2 (en) * 2002-05-17 2006-06-06 Bierhuizen Serge J A Illumination systems employing corrective optics for use in reduced étendue color video projection systems
US6839095B2 (en) * 2002-05-17 2005-01-04 Infocus Corporation Single-path color video projection systems employing reflective liquid crystal display devices
US7131736B2 (en) * 2002-05-17 2006-11-07 Bierhuizen Serge J A Efficient illumination systems for reduced étendue color video projection systems
US7163305B2 (en) * 2003-06-25 2007-01-16 Gemtron Corporation Illuminated shelf
JP4100276B2 (en) * 2003-07-04 2008-06-11 セイコーエプソン株式会社 Lighting device and projector
US7387388B2 (en) 2004-04-15 2008-06-17 Jds Uniphase Corporation Illumination system using polarization conversion
US7325957B2 (en) * 2005-01-25 2008-02-05 Jabil Circuit, Inc. Polarized light emitting diode (LED) color illumination system and method for providing same
US7261453B2 (en) 2005-01-25 2007-08-28 Morejon Israel J LED polarizing optics for color illumination system and method of using same
US7325956B2 (en) * 2005-01-25 2008-02-05 Jabil Circuit, Inc. Light-emitting diode (LED) illumination system for a digital micro-mirror device (DMD) and method of providing same
JP4987866B2 (en) * 2005-06-30 2012-07-25 ウェイヴィーン・インコーポレイテッド Dual paraboloidal reflector and dual ellipsoidal reflector system with optimized magnification
DE102005032934A1 (en) 2005-07-12 2007-01-25 Philipps-Universität Marburg Invention concerning reflector systems
US7973996B2 (en) * 2005-12-09 2011-07-05 Scram Technologies, Inc. Optical system for a digital light projection system including a 3-channel LED array light engine
US7508590B2 (en) * 2005-12-09 2009-03-24 Scram Technologies, Inc. Optical system for a digital light projection system including 3-channel and 4-channel LED array light engines
US20070165186A1 (en) * 2006-01-13 2007-07-19 Copner Nigel J Light source system and an image projection system
WO2009126539A1 (en) * 2008-04-07 2009-10-15 Eric Ting-Shan Pan Solar-to-electricity conversion modules, systems & methods
US20100027238A1 (en) * 2008-08-01 2010-02-04 Video Display Corporation Polarization-recovery illumination system with high illumination efficiency
US8760507B2 (en) * 2008-08-05 2014-06-24 Inspectron, Inc. Light pipe for imaging head of video inspection device
TW201015131A (en) * 2008-09-05 2010-04-16 Wavien Inc Pseudo light pipe for coupling of light for dual paraboloid reflector (DPR) system
US8279499B2 (en) * 2010-05-10 2012-10-02 Xerox Corporation Single LED dual light guide
CN103293523B (en) * 2013-06-17 2015-04-22 河海大学常州校区 Hyperspectral remote sensing small target detection method based on multiple aperture information processing
CN104090423B (en) * 2014-06-23 2017-08-01 京东方科技集团股份有限公司 Transparent display
DE102014017061A1 (en) 2014-11-07 2016-05-12 Technische Hochschule Nürnberg Georg Simon Ohm Wavelength-variable fluorescent light sources for optical fiber applications
CN106707668A (en) * 2016-12-14 2017-05-24 浙江晶景光电有限公司 Polarized light reuse imaging method and micro optical engine system based on optical wand
CN113050240A (en) * 2021-03-30 2021-06-29 杭州芯耘光电科技有限公司 Highly integrated silicon optical component adopting curved surface reflector and coupling method thereof

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US5829858A (en) * 1997-02-18 1998-11-03 Levis; Maurice E. Projector system with light pipe optics
US5884991A (en) * 1997-02-18 1999-03-23 Torch Technologies Llc LCD projection system with polarization doubler

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US5884991A (en) * 1997-02-18 1999-03-23 Torch Technologies Llc LCD projection system with polarization doubler

Also Published As

Publication number Publication date
JP2004519010A (en) 2004-06-24
CN1491373A (en) 2004-04-21
CA2435400A1 (en) 2002-08-15
US6739726B2 (en) 2004-05-25
WO2002063390A2 (en) 2002-08-15
EP1364252A2 (en) 2003-11-26
TW548508B (en) 2003-08-21
MXPA03006835A (en) 2004-05-14
US20020154510A1 (en) 2002-10-24
KR20030082583A (en) 2003-10-22
AU2002240203A1 (en) 2002-08-19

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