WO2001072049A3 - Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays - Google Patents

Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays Download PDF

Info

Publication number
WO2001072049A3
WO2001072049A3 PCT/US2001/009040 US0109040W WO0172049A3 WO 2001072049 A3 WO2001072049 A3 WO 2001072049A3 US 0109040 W US0109040 W US 0109040W WO 0172049 A3 WO0172049 A3 WO 0172049A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
color
valve
luminous efficiency
modulating device
Prior art date
Application number
PCT/US2001/009040
Other languages
French (fr)
Other versions
WO2001072049A2 (en
Inventor
David E Slobodin
Original Assignee
Infocus Corp
David E Slobodin
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 Infocus Corp, David E Slobodin filed Critical Infocus Corp
Priority to AU2001250911A priority Critical patent/AU2001250911A1/en
Publication of WO2001072049A2 publication Critical patent/WO2001072049A2/en
Publication of WO2001072049A3 publication Critical patent/WO2001072049A3/en

Links

Classifications

    • 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]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
    • H04N9/3117—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands

Abstract

A color sequential video projector (10) employs a color modulating device (22) and a segmented light pipe (30) that coact to provide a high luminous efficiency. The color modulating device splits polychromatic light into three light beams (24, 26, 28) that alternate mutually exclusive colors sequentially such that a light valve (48) is exposed to all three colors during an image frame. Because all three colors of light are constantly illuminating the light valve, light losses are mostly eliminated. The color modulating device employs multiple color wheels (82, 84, 86). Alternative embodiments employ one, two, or three color wheels having flat or conically-shaped filter segment surfaces. The light pipe input apertures (32, 34, 36) receive three light beams, homogenize them, and provide at three output apertures (38, 40, 42) uniformly bright rectangular light beams. A lens (44) images the uniform light beams onto the light valve.
PCT/US2001/009040 2000-03-23 2001-03-21 Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays WO2001072049A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001250911A AU2001250911A1 (en) 2000-03-23 2001-03-21 Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/536,177 US6334685B1 (en) 2000-03-23 2000-03-23 Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays
US09/536,177 2000-03-23

Publications (2)

Publication Number Publication Date
WO2001072049A2 WO2001072049A2 (en) 2001-09-27
WO2001072049A3 true WO2001072049A3 (en) 2002-02-14

Family

ID=24137468

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009040 WO2001072049A2 (en) 2000-03-23 2001-03-21 Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays

Country Status (3)

Country Link
US (1) US6334685B1 (en)
AU (1) AU2001250911A1 (en)
WO (1) WO2001072049A2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1157564A1 (en) * 1999-12-24 2001-11-28 Koninklijke Philips Electronics N.V. Color projection system
JP3727543B2 (en) * 2000-05-10 2005-12-14 三菱電機株式会社 Image display device
US6870523B1 (en) * 2000-06-07 2005-03-22 Genoa Color Technologies Device, system and method for electronic true color display
US6474818B1 (en) * 2000-07-28 2002-11-05 Infocus Corporation Mirror and aperture based color phase detector for use in a multimedia projection system
KR100357716B1 (en) * 2000-11-02 2002-10-25 삼성전자 주식회사 An optical image projection system using simple electronic color switchs
US6726333B2 (en) * 2001-02-09 2004-04-27 Reflectivity, Inc Projection display with multiply filtered light
US6859239B2 (en) * 2001-02-26 2005-02-22 Infocus Corporation Projection system with folded optical path
US20050105061A1 (en) * 2001-03-15 2005-05-19 Delong James A. Projection system with folded optical path
US6863401B2 (en) * 2001-06-30 2005-03-08 Texas Instruments Incorporated Illumination system
US6827450B1 (en) * 2001-10-05 2004-12-07 Jds Uniphase Corporation Scrolling color projection system
US6870581B2 (en) * 2001-10-30 2005-03-22 Sharp Laboratories Of America, Inc. Single panel color video projection display using reflective banded color falling-raster illumination
KR100447171B1 (en) * 2001-11-07 2004-09-04 엘지전자 주식회사 Projection system and method embodying color
US6637888B1 (en) * 2002-01-24 2003-10-28 Delta Electronics, Inc. Full color rear screen projection system using a single monochrome TFT LCD panel
US7050120B2 (en) * 2002-01-31 2006-05-23 Hewlett-Packard Development Company, L.P. Display device with cooperative color filters
JP2003307704A (en) 2002-04-17 2003-10-31 Hitachi Ltd Image display device
KR100441603B1 (en) 2002-05-02 2004-07-23 삼성전자주식회사 Apparatus for projection image having optical-switch of non-square matrix type
US6860606B2 (en) * 2003-01-21 2005-03-01 Hewlett-Packard Development Company, L.P. Projector having concentrated beam
KR100481519B1 (en) * 2002-05-21 2005-04-07 삼성전자주식회사 Apparatus for image projection using dichroic mirror wheel
US6947020B2 (en) 2002-05-23 2005-09-20 Oregonlabs, Llc Multi-array spatial light modulating devices and methods of fabrication
US20030218590A1 (en) * 2002-05-23 2003-11-27 Kiser David K. Optics engine having multi-array spatial light modulating device and method of operation
KR100930237B1 (en) * 2002-06-25 2009-12-09 삼성전자주식회사 Illumination optical system employing a dichroic mirror wheel and an image display device having the same
KR100474465B1 (en) * 2002-07-10 2005-03-10 삼성전자주식회사 Apparatus for color separation using dichroic mirror wheel, and apparatus for image projection using the same
KR20040021473A (en) * 2002-09-04 2004-03-10 삼성전자주식회사 High efficiency of projection system and color scrolling method
KR20040021806A (en) * 2002-09-04 2004-03-11 삼성전자주식회사 Color light separating device and single panel type color display device employing it
US7011414B2 (en) * 2002-09-04 2006-03-14 Samsung Electronics Co., Ltd. Highly efficient projection system and color scrolling method therefor
US6825968B2 (en) * 2002-10-11 2004-11-30 Exajoule, Llc Micromirror systems with electrodes configured for sequential mirror attraction
US20040109139A1 (en) * 2002-12-10 2004-06-10 Kiser David K. Apparatus for combining a number of images into a single image
US20040109138A1 (en) * 2002-12-10 2004-06-10 Kiser David K. Apparatus for generating a number of color light components
US20040109140A1 (en) * 2002-12-10 2004-06-10 Kiser David K. Apparatus for combining a number of images into a single image
US20040108973A1 (en) * 2002-12-10 2004-06-10 Kiser David K. Apparatus for generating a number of color light components
JP3665638B2 (en) * 2002-12-27 2005-06-29 株式会社東芝 Projection display
KR20040077224A (en) * 2003-02-28 2004-09-04 삼성전자주식회사 Scrolling unit, color illuminating system and projection system employing the same
US7018044B2 (en) * 2003-06-26 2006-03-28 Hewlett-Packard Development Company, L.P. Display system incorporating spectral separation and homogenization
KR100565597B1 (en) * 2003-07-23 2006-03-29 엘지전자 주식회사 Apparatus of improving color property in Projection system
US7212359B2 (en) * 2003-07-25 2007-05-01 Texas Instruments Incorporated Color rendering of illumination light in display systems
US7131762B2 (en) 2003-07-25 2006-11-07 Texas Instruments Incorporated Color rendering of illumination light in display systems
JP4159428B2 (en) * 2003-08-25 2008-10-01 Ｎｅｃディスプレイソリューションズ株式会社 Color projection display device
US6874892B1 (en) 2003-11-13 2005-04-05 Hewlett-Packard Development Company, L.P. Color setting monitoring system for a digital projector
WO2005074299A1 (en) * 2004-01-30 2005-08-11 Koninklijke Philips Electronics, N.V. Color splitting for producing differing width bands for a scrolling display projector
US20070053190A1 (en) * 2004-05-17 2007-03-08 Koninklijke Philips Electronics N.V. Compact efficient light collection optics for scrolling color illumination
US7095547B2 (en) * 2004-06-28 2006-08-22 Aubuchon Christopher M Multiple beam-directing micromirror device
US7147332B2 (en) * 2004-07-21 2006-12-12 3M Innovative Properties Company Projection system with scrolling color illumination
JP4102807B2 (en) * 2005-01-31 2008-06-18 Ｎｅｃディスプレイソリューションズ株式会社 Display panel illumination optical system, and projector having the illumination optical system
US20070081252A1 (en) * 2005-08-04 2007-04-12 Shu-I Lin Single panel reflective-type color optical engine
US20090190043A1 (en) * 2006-04-28 2009-07-30 Manlin Pei Single panel projection system
US20110134317A1 (en) * 2006-04-28 2011-06-09 Yong-Jing Wang Image generation system producing compound images
US8157388B2 (en) * 2008-03-31 2012-04-17 Texas Instruments Incorporated System and method for a projection display system using an optical lightguide
TWI427616B (en) * 2009-10-01 2014-02-21 Genesys Logic Inc Light compensation scheme, optical machine device, display system and method for light compensation
US8678614B2 (en) 2012-02-09 2014-03-25 Delta Electronics, Inc. Light source system
US8857995B2 (en) 2012-02-09 2014-10-14 Delta Electronics, Inc. Light source system for stereoscopic projection
TWI489855B (en) 2012-05-23 2015-06-21 Delta Electronics Inc Light source system for stereoscopic projection
CN103792765B (en) * 2012-10-31 2016-06-22 台达电子工业股份有限公司 Stereo display solid-state light module
CN105988272B (en) * 2015-02-15 2019-03-01 深圳光峰科技股份有限公司 Optical projection system and its control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005722A (en) * 1998-09-04 1999-12-21 Hewlett-Packard Company Optical display system including a light valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548347A (en) 1990-12-27 1996-08-20 Philips Electronics North America Corporation Single panel color projection video display having improved scanning
US5467146A (en) * 1994-03-31 1995-11-14 Texas Instruments Incorporated Illumination control unit for display system with spatial light modulator
US5845981A (en) 1997-12-29 1998-12-08 Philips Electronics North America Corporation Multi-color-band scrolling across single-panel light valve
US6266105B1 (en) * 1998-07-31 2001-07-24 Philips Electornics North America Corporation Color projection system incorporation electro-optic light modulator and rotating light-reflective element
US5967636A (en) 1998-08-19 1999-10-19 In Focus Systems, Inc. Color wheel synchronization apparatus and method
JP2002543694A (en) * 1999-04-23 2002-12-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Color projection system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005722A (en) * 1998-09-04 1999-12-21 Hewlett-Packard Company Optical display system including a light valve

Also Published As

Publication number Publication date
US6334685B1 (en) 2002-01-01
AU2001250911A1 (en) 2001-10-03
WO2001072049A2 (en) 2001-09-27

Similar Documents

Publication Publication Date Title
WO2001072049A3 (en) Segmented light pipe apparatus and method for increasing luminous efficiency of single light-valve, color video projection displays
US7192140B2 (en) Projector
GB2396072B (en) Dynamic range enhancement of image display apparatus
ATE478523T1 (en) SEQUENTIAL COLOR RECOVERY FOR PROJECTION SYSTEMS
EP1401215A3 (en) LCD projector system
EP2460358B1 (en) Display method with expanded color gamut
CA2149470A1 (en) Projection Display Apparatus
EP0984637A3 (en) Projection display system for reflective light valves
WO2007139764A3 (en) Digital cinema projection system with increased etendue
WO2007139763A3 (en) Digital cinema projection system with increased etendue
WO2007139761A3 (en) Digital cinema projection system with increased etendue
WO2005013193A2 (en) Multi-primary color display
WO2018126561A1 (en) Projection system
EP0726681A3 (en) Projection type image display apparatus
EP1565006A3 (en) High performance projection system with two reflective liquid crystal display panels
JP3055683B2 (en) Electronic image display and projection device
WO2006096598A3 (en) Four panel projection system
EP1043620A3 (en) Projection display system using polarized light
CN106412535A (en) Image display control system and image display control method thereof
CA2147919A1 (en) Video Projector with Luminance and Chrominance Optical Modulation LCD's
JP2006509243A (en) Two-stage projector structure
WO2018113226A1 (en) Projection display system
WO2018170987A1 (en) Projection system
EP0871338A3 (en) Projection type video image display device
CN105988272A (en) Projection system and control method thereof

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP