WO2009094133A1 - Multi-color light source - Google Patents
Multi-color light source Download PDFInfo
- Publication number
- WO2009094133A1 WO2009094133A1 PCT/US2009/000349 US2009000349W WO2009094133A1 WO 2009094133 A1 WO2009094133 A1 WO 2009094133A1 US 2009000349 W US2009000349 W US 2009000349W WO 2009094133 A1 WO2009094133 A1 WO 2009094133A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- time intervals
- light beam
- intensity
- light source
- Prior art date
Links
Classifications
-
- 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
-
- 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
- H04N9/3164—Modulator illumination systems using multiple light sources
-
- 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
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
-
- 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
- G03B21/2053—Intensity control of illuminating light
-
- 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]
-
- 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
-
- 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
- H04N9/3155—Modulator illumination systems for controlling the light source
Definitions
- FIG. 2 is a time sequence graph schematically illustrating operation of an example of a system.
- FIG. 3 is a time sequence graph schematically illustrating operation of a portion of another example of a system.
- FIG. 4 is a time sequence graph schematically illustrating operation of another portion of the example of a system of FIG. 3.
- FIG. 5 is a time sequence graph schematically illustrating operation of an additional portion of the system of FIGS. 3 and 4.
- the first, second and third light sources 102, 104, 106 may be configured for generating light beams having first, second and third perceptual or perceived colors collectively serving as three primes for generating color display frames.
- a color display frame may include a color image encoded by digital data according to a selected color space.
- the first, second and third light beams respectively represented by the arrows 112, 114, 116 have first, second and third intensities, respectively.
- the first, second and third intensities, which are also respectively represented by the arrows 112, 114, 116, have respective first, second and third maxima that can be physically achieved by the first, second and third light sources 102, 104, 106.
- substantially as applied to a maximum physically achievable intensity means that a subject light source such as a first, second, or third light source 102, 104, 106, emits photons at a maximum physically achievable intensity that is approximately equivalent to a highest average rated achievable intensity output for the subject light source or for a light source having the same configuration.
- substantially as applied to an equivalent total full energy means that one subject total full energy is within plus or minus five percent (5%) of another subject total full energy.
- this available time duration may for example be allocated to the three sub-frames respectively of three selected prime colors such that two conditions are met: (1) all three light sources 102, 104, 106 run at their maximum physically achievable intensities; and (2) a white perceived color is produced by the image projector 110 matching the color coordinates of a pre-selected standard white.
- the intensities of the first, second and third light beams integrated over the first, second and third time intervals, respectively my collectively produce a perceived color of white light.
- the controller 108 may be configured to simultaneously direct the first, second and third light beams represented by the arrows 120, 122, 124 in first, second and third intervals, the fourth time intervals following the third intervals.
- Total energies of the first, second and third light emission cycles 202, 204, 206 may be schematically represented by the areas 220, 222, 224, respectively.
- the total energies of the first, second and third light emission cycles 202, 204, 206 may respectively be computed as products of the first, second and third maximum achievable output intensities respectively represented by the arrows 208, 210, 212, multiplied respectively by the time periods 214, 216, 218.
- dividing one of the time periods represented by the arrows 214, 216, 218 by the on-off cycle time of the image projector 110 yields a value for a number of on-off cycles included in each of the first, second and third sub-frames (not shown).
- a perceptual color of light is approximately cumulative over each of the time periods represented by the arrows 214, 216, 218, limited by an average image retention time period of the human brain.
- the number of on-off cycles included in each of the first, second and third sub-frames determines the range of different gradations of depths of perceptual color that may be visualized in each of the first, second and third sub- frames.
- the controller 108 may be configured for pulsed operation of the first, second or third light source 102, 104, 106 during the first, second or third light emission cycle 202, 204, 206, respectively.
- pulsed operation of the first, second or third light source 102, 104, 106 may result in higher maximum achievable output intensities respectively represented by the arrows 208, 210, 212 in FIG. 2.
- pulsed operation of the first, second or third light source 102, 104, 106 may result in higher total energies of the first, second and third light emission cycles 202, 204, 206 as schematically represented by the areas 220, 222, 224, respectively.
- the first, second, and third light sources 102, 104, 106 are respectively operated at substantially their maximum achievable output intensities respectively represented by the arrows 306, 406, 506 in FIGS. 3-5 during the first, second and third light emission cycles 302, 402, 502, analogously to operation of the example of a system 100 discussed above in connection with FIG. 2.
- FIG. 6 is a flow chart showing an example of an implementation of a method 600 of operating an imaging system having a multi-color light source as illustrated in FIGS. 2-5.
- the method starts at step 602, and then at step 604 a device is provided that includes providing a first light source 102 configured to generate a first light beam represented by the arrow 112 of a first perceived color, a second light source 104 configured to generate a second light beam represented by the arrow 114 of a different second perceived color, and a controller 108 configured to direct light from the first and second light beams represented by the arrows 112, 114 to an image projector 110.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801028406A CN101925856B (en) | 2008-01-22 | 2009-01-21 | Multi-color light source |
EP09704136A EP2240824A1 (en) | 2008-01-22 | 2009-01-21 | Multi-color light source |
JP2010544315A JP5296101B2 (en) | 2008-01-22 | 2009-01-21 | Multicolor light source |
KR1020127031496A KR20130006528A (en) | 2008-01-22 | 2009-01-21 | Multi-color light source |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/009,991 US8129669B2 (en) | 2008-01-22 | 2008-01-22 | System and method generating multi-color light for image display having a controller for temporally interleaving the first and second time intervals of directed first and second light beams |
US12/009,991 | 2008-01-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009094133A1 true WO2009094133A1 (en) | 2009-07-30 |
Family
ID=40679616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/000349 WO2009094133A1 (en) | 2008-01-22 | 2009-01-21 | Multi-color light source |
Country Status (6)
Country | Link |
---|---|
US (1) | US8129669B2 (en) |
EP (1) | EP2240824A1 (en) |
JP (1) | JP5296101B2 (en) |
KR (2) | KR20100095640A (en) |
CN (1) | CN101925856B (en) |
WO (1) | WO2009094133A1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080219303A1 (en) * | 2007-03-02 | 2008-09-11 | Lucent Technologies Inc. | Color mixing light source and color control data system |
CN101918880B (en) | 2008-01-22 | 2014-03-26 | 阿尔卡特朗讯美国公司 | A light modulator for optical image projection |
US8226241B2 (en) * | 2009-05-15 | 2012-07-24 | Alcatel Lucent | Image projector employing a speckle-reducing laser source |
US20110234985A1 (en) | 2010-03-26 | 2011-09-29 | Alcatel-Lucent Usa Inc. | Despeckling laser-image-projection system |
US8421844B2 (en) | 2010-08-13 | 2013-04-16 | Alcatel Lucent | Apparatus for correcting gaze, a method of videoconferencing and a system therefor |
JP5311149B2 (en) * | 2010-12-07 | 2013-10-09 | カシオ計算機株式会社 | Light source device and projector |
US9196189B2 (en) * | 2011-05-13 | 2015-11-24 | Pixtronix, Inc. | Display devices and methods for generating images thereon |
US9565782B2 (en) | 2013-02-15 | 2017-02-07 | Ecosense Lighting Inc. | Field replaceable power supply cartridge |
US9736443B2 (en) * | 2013-03-04 | 2017-08-15 | Intel Corporation | Adaptive image management of a projector system |
KR20160041147A (en) * | 2014-10-06 | 2016-04-18 | 삼성전자주식회사 | Method for controlling and an electronic device thereof |
US10477636B1 (en) | 2014-10-28 | 2019-11-12 | Ecosense Lighting Inc. | Lighting systems having multiple light sources |
US11306897B2 (en) | 2015-02-09 | 2022-04-19 | Ecosense Lighting Inc. | Lighting systems generating partially-collimated light emissions |
US9869450B2 (en) | 2015-02-09 | 2018-01-16 | Ecosense Lighting Inc. | Lighting systems having a truncated parabolic- or hyperbolic-conical light reflector, or a total internal reflection lens; and having another light reflector |
US9651216B2 (en) | 2015-03-03 | 2017-05-16 | Ecosense Lighting Inc. | Lighting systems including asymmetric lens modules for selectable light distribution |
US9651227B2 (en) | 2015-03-03 | 2017-05-16 | Ecosense Lighting Inc. | Low-profile lighting system having pivotable lighting enclosure |
US9568665B2 (en) | 2015-03-03 | 2017-02-14 | Ecosense Lighting Inc. | Lighting systems including lens modules for selectable light distribution |
US9746159B1 (en) | 2015-03-03 | 2017-08-29 | Ecosense Lighting Inc. | Lighting system having a sealing system |
USD785218S1 (en) | 2015-07-06 | 2017-04-25 | Ecosense Lighting Inc. | LED luminaire having a mounting system |
USD782093S1 (en) | 2015-07-20 | 2017-03-21 | Ecosense Lighting Inc. | LED luminaire having a mounting system |
USD782094S1 (en) | 2015-07-20 | 2017-03-21 | Ecosense Lighting Inc. | LED luminaire having a mounting system |
US9651232B1 (en) | 2015-08-03 | 2017-05-16 | Ecosense Lighting Inc. | Lighting system having a mounting device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010022613A1 (en) * | 1997-03-24 | 2001-09-20 | Sony Corporation | Picture display method and apparatus |
US20050243282A1 (en) * | 2004-04-30 | 2005-11-03 | Peterson Mark D | Method and apparatus for sequencing light emitting devices in projection systems |
US20060175622A1 (en) * | 2003-07-24 | 2006-08-10 | Peter Richards | Micromirror-based projection system and a method of making the same |
US20070070296A1 (en) * | 2005-09-29 | 2007-03-29 | Casio Computer Co., Ltd. | Projector and method of controlling a light source for use with the projector |
Family Cites Families (129)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3549240A (en) | 1967-11-06 | 1970-12-22 | Optics Technology Inc | Optical filtering method and apparatus |
US3573353A (en) | 1967-12-18 | 1971-04-06 | Technical Operations Inc | Optical detection system and method with spatial filtering |
US3546374A (en) | 1967-12-28 | 1970-12-08 | Technical Operations Inc | Image processing system and method |
US3719127A (en) | 1971-04-01 | 1973-03-06 | Technical Operations Inc | Spectral zonal information storage and retrieval |
DE2506582B2 (en) | 1975-02-17 | 1978-01-19 | Hartmann & Braun Ag, 6000 Frankfurt | CIRCUIT ARRANGEMENT FOR LOW-LOSS FEEDING OF SEVERAL CONTROLLABLE CONSUMERS |
US4281904A (en) | 1979-06-21 | 1981-08-04 | Xerox Corporation | TIR Electro-optic modulator with individually addressed electrodes |
US4471445A (en) | 1981-03-30 | 1984-09-11 | Grumman Aerospace Corporation | Fourier transform signal processor |
US4410839A (en) | 1981-07-02 | 1983-10-18 | Hybrinetics, Inc. | Apparatus for controlling power consumption in lighting loads and the like |
US4522466A (en) | 1983-05-26 | 1985-06-11 | Grumman Aerospace Corporation | Recursive optical filter system |
US4834476A (en) | 1987-03-31 | 1989-05-30 | Massachusetts Institute Of Technology | Real image holographic stereograms |
US5032002A (en) | 1989-02-14 | 1991-07-16 | Grumman Aerospace Corporation | Write with light optical notching filter |
US5192946A (en) | 1989-02-27 | 1993-03-09 | Texas Instruments Incorporated | Digitized color video display system |
KR100202246B1 (en) | 1989-02-27 | 1999-06-15 | 윌리엄 비. 켐플러 | Apparatus and method for digital video system |
US5272473A (en) | 1989-02-27 | 1993-12-21 | Texas Instruments Incorporated | Reduced-speckle display system |
US5327270A (en) | 1989-03-23 | 1994-07-05 | Matsushita Electric Industrial Co., Ltd. | Polarizing beam splitter apparatus and light valve image projection system |
US4986619A (en) | 1989-10-30 | 1991-01-22 | Massachusetts Institute Of Technology | Holographic color control systems |
US5172251A (en) | 1990-04-12 | 1992-12-15 | Massachusetts Institute Of Technology | Three dimensional display system |
JP2681304B2 (en) | 1990-05-16 | 1997-11-26 | 日本ビクター株式会社 | Display device |
JPH07113533B2 (en) | 1990-11-30 | 1995-12-06 | 浜松ホトニクス株式会社 | Optical deformation amount measuring device |
AU669247B2 (en) | 1993-03-04 | 1996-05-30 | Ldt Gmbh & Co. Laser-Display-Technologie Kg | Television projection system |
JPH07294866A (en) | 1994-04-27 | 1995-11-10 | Mitsubishi Electric Corp | Projector device |
US5470802A (en) | 1994-05-20 | 1995-11-28 | Texas Instruments Incorporated | Method of making a semiconductor device using a low dielectric constant material |
FR2727529B1 (en) | 1994-11-28 | 1997-01-03 | France Telecom | LIGHT DIFFRACTION DEVICE USING RECONFIGURABLE LIGHT SPATIAL MODULATORS AND THE FRACTIONAL TALBOT EFFECT |
US5596451A (en) | 1995-01-30 | 1997-01-21 | Displaytech, Inc. | Miniature image generator including optics arrangement |
US20020047594A1 (en) | 1995-06-26 | 2002-04-25 | Janning John L. | Series connected light string with filament shunting |
JPH09159988A (en) | 1995-12-12 | 1997-06-20 | Nikon Corp | Projection type display device |
US6426836B2 (en) | 1996-06-11 | 2002-07-30 | Hewlett-Packard Co. | Method and apparatus for reducing the formation of spots in laser projection |
US5834331A (en) | 1996-10-17 | 1998-11-10 | Northwestern University | Method for making III-Nitride laser and detection device |
EP1012818A4 (en) | 1996-11-29 | 2000-11-08 | Laser Optics Res Corp | Monochromatic r,g,b laser light source display system and method |
US6310713B2 (en) | 1997-04-07 | 2001-10-30 | International Business Machines Corporation | Optical system for miniature personal displays using reflective light valves |
US6525821B1 (en) | 1997-06-11 | 2003-02-25 | Ut-Battelle, L.L.C. | Acquisition and replay systems for direct-to-digital holography and holovision |
SE9800665D0 (en) | 1998-03-02 | 1998-03-02 | Micronic Laser Systems Ab | Improved method for projection printing using a micromirror SLM |
US6211848B1 (en) | 1998-05-15 | 2001-04-03 | Massachusetts Institute Of Technology | Dynamic holographic video with haptic interaction |
EP1011186A3 (en) | 1998-12-07 | 2001-10-31 | Delphi Technologies, Inc. | Electric load management circuit |
JP2000199872A (en) | 1998-12-29 | 2000-07-18 | Sony Corp | Illumination device and image display device |
US6317228B2 (en) | 1999-09-14 | 2001-11-13 | Digilens, Inc. | Holographic illumination system |
US6538775B1 (en) * | 1999-09-16 | 2003-03-25 | Reveo, Inc. | Holographically-formed polymer dispersed liquid crystals with multiple gratings |
US6545790B2 (en) | 1999-11-08 | 2003-04-08 | Ralph W. Gerchberg | System and method for recovering phase information of a wave front |
WO2002010804A1 (en) | 2000-07-31 | 2002-02-07 | Rochester Photonics Corporation | Structure screens for controlled spreading of light |
US6870650B2 (en) | 2000-08-01 | 2005-03-22 | Riake Corporation | Illumination device and method for laser projector |
US6323984B1 (en) | 2000-10-11 | 2001-11-27 | Silicon Light Machines | Method and apparatus for reducing laser speckle |
US6771326B2 (en) * | 2000-10-26 | 2004-08-03 | General Atomics, Inc. | Multi-screen laser projection system using a shared laser source |
JP3973356B2 (en) | 2000-10-26 | 2007-09-12 | 株式会社リコー | Illumination optical device and projector using illumination optical device |
FI116918B (en) | 2000-12-13 | 2006-03-31 | Modines Ltd Oy | beam shaper |
US6600590B2 (en) | 2001-02-20 | 2003-07-29 | Eastman Kodak Company | Speckle suppressed laser projection system using RF injection |
US6625381B2 (en) | 2001-02-20 | 2003-09-23 | Eastman Kodak Company | Speckle suppressed laser projection system with partial beam reflection |
US7015983B2 (en) | 2001-06-26 | 2006-03-21 | Honeywell International Inc. | Projection system utilizing fiber optic illumination |
IL159677A0 (en) | 2001-07-06 | 2004-06-20 | Explay Ltd | An image projecting device and method |
US6621235B2 (en) | 2001-08-03 | 2003-09-16 | Koninklijke Philips Electronics N.V. | Integrated LED driving device with current sharing for multiple LED strings |
US6791739B2 (en) | 2001-08-08 | 2004-09-14 | Eastman Kodak Company | Electro-optic despeckling modulator and method of use |
US6594090B2 (en) | 2001-08-27 | 2003-07-15 | Eastman Kodak Company | Laser projection display system |
JP2003186112A (en) * | 2001-12-19 | 2003-07-03 | Olympus Optical Co Ltd | Image projection and display device |
US6577429B1 (en) | 2002-01-15 | 2003-06-10 | Eastman Kodak Company | Laser projection display system |
US6797983B2 (en) | 2002-01-30 | 2004-09-28 | United Microelectronics Corp. | Method of fabrication LCOS structure |
JP4055610B2 (en) | 2002-03-22 | 2008-03-05 | セイコーエプソン株式会社 | Image display device and projector |
JP2003339052A (en) * | 2002-05-21 | 2003-11-28 | Mitsubishi Electric Corp | Color video display apparatus |
US6984917B2 (en) | 2002-06-06 | 2006-01-10 | Lucent Technologies Inc. | Optical element having two axes of rotation for use in tightly spaced mirror arrays |
US6902276B2 (en) | 2002-07-12 | 2005-06-07 | Florida Atlantic University | Color projector apparatus and method |
WO2004016000A1 (en) * | 2002-08-01 | 2004-02-19 | Koninklijke Philips Electronics N.V. | Scrolling color system with ac-operated lamp |
US7430022B2 (en) * | 2002-10-01 | 2008-09-30 | Koninklijke Philips Electronics N.V. | Color display device |
JP2004184852A (en) * | 2002-12-05 | 2004-07-02 | Olympus Corp | Display device, light source device and illuminator |
JP4898121B2 (en) | 2003-01-08 | 2012-03-14 | エクスプレイ エルティーディー | Image projection device |
US6917409B2 (en) | 2003-02-18 | 2005-07-12 | Intel Corporation | Integrated spacer technology for LCOS light modulators |
US6936999B2 (en) | 2003-03-14 | 2005-08-30 | Power-One Limited | System and method for controlling output-timing parameters of power converters |
US6876484B2 (en) | 2003-03-24 | 2005-04-05 | Lucent Technologies Inc. | Deformable segmented MEMS mirror |
US7159987B2 (en) * | 2003-04-21 | 2007-01-09 | Seiko Epson Corporation | Display device, lighting device and projector |
JP4016876B2 (en) | 2003-04-23 | 2007-12-05 | セイコーエプソン株式会社 | projector |
WO2004106982A2 (en) | 2003-05-22 | 2004-12-09 | Optical Research Associates | Optical combiner designs and head mounted displays |
JP2005025160A (en) * | 2003-06-13 | 2005-01-27 | Seiko Epson Corp | Method of driving spatial light modulator and projector |
EP1642165A1 (en) | 2003-06-26 | 2006-04-05 | RIS National Laboratory | Generation of a desired wavefront with a plurality of phase contrast filters |
US7156522B2 (en) | 2003-07-16 | 2007-01-02 | Plut William J | Projection-type display devices with reduced weight and size |
DE10345433A1 (en) * | 2003-09-30 | 2005-04-21 | Zeiss Carl Jena Gmbh | Optical projection device using 3 light sources coupled to projection lens via illumination channel containing light modulator with 2 modulation units for balancing individual light levels |
US7138648B2 (en) | 2003-12-17 | 2006-11-21 | Palo Alto Research Center Incorporated | Ultraviolet group III-nitride-based quantum well laser diodes |
EP1703318A4 (en) | 2003-12-22 | 2010-08-04 | Panasonic Corp | Two-dimensional image display device |
US7161608B2 (en) | 2004-01-07 | 2007-01-09 | Texas Instruments Incorporated | Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications |
US7099063B2 (en) | 2004-03-09 | 2006-08-29 | Lucent Technologies Inc. | MEMS device for an adaptive optics mirror |
US7693330B2 (en) | 2004-03-15 | 2010-04-06 | Vincent So | Anti-piracy image display methods and systems with sub-frame intensity compensation |
US7068409B2 (en) | 2004-03-31 | 2006-06-27 | Lucent Technologies Inc. | Tip-tilt-piston actuator |
US7256568B2 (en) | 2004-05-11 | 2007-08-14 | The Hong Kong University Of Science And Technology | Single inductor multiple-input multiple-output switching converter and method of use |
US7289209B2 (en) | 2004-07-22 | 2007-10-30 | Eastman Kodak Company | Programmable spectral imaging system |
EP1774767A1 (en) | 2004-07-27 | 2007-04-18 | Koninklijke Philips Electronics N.V. | Maintenance of hue in a saturation-controlled color image |
KR100565076B1 (en) | 2004-08-05 | 2006-03-30 | 삼성전자주식회사 | Illumination system eliminating laser speckle and projection system employing the same |
US7344262B2 (en) | 2004-09-29 | 2008-03-18 | Lucent Technologies Inc. | MEMS mirror with tip or piston motion for use in adaptive optics |
US7268852B2 (en) | 2004-10-27 | 2007-09-11 | United Microdisplay Optronics Corp. | LCOS display panel having a micro dichroic layer positioned in the back plane to filter colors |
KR100682902B1 (en) | 2004-11-19 | 2007-02-15 | 삼성전자주식회사 | Illumination system eliminating laser speckle and projection TV employing the same |
KR100682903B1 (en) | 2004-11-19 | 2007-02-15 | 삼성전자주식회사 | Illumination system eliminating laser speckle and projection TV employing the same |
US7206117B2 (en) | 2004-12-10 | 2007-04-17 | Lucent Technologies Inc. | Segmented MEMS mirror for adaptive optics or maskless lithography |
US7244028B2 (en) | 2004-12-14 | 2007-07-17 | Coherent, Inc. | Laser illuminated projection displays |
US7355657B2 (en) | 2004-12-14 | 2008-04-08 | Coherent, Inc. | Laser illuminated projection displays |
US20060181770A1 (en) | 2005-02-15 | 2006-08-17 | K Laser Technology, Inc. | Rear projection screen with spatial varying diffusing angle |
US7646518B2 (en) | 2005-02-25 | 2010-01-12 | Panasonic Corporation | Two dimensional image forming device |
US7193765B2 (en) | 2005-03-31 | 2007-03-20 | Evans & Sutherland Computer Corporation | Reduction of speckle and interference patterns for laser projectors |
US7481541B2 (en) * | 2005-04-22 | 2009-01-27 | Barco N.V. | Method and systems for projecting images |
JP2006330177A (en) * | 2005-05-24 | 2006-12-07 | Olympus Corp | Display device and projector |
US7253550B2 (en) | 2005-05-27 | 2007-08-07 | Lucent Technologies Inc. | Torsional electrostatic actuator |
EP1734771A1 (en) | 2005-06-14 | 2006-12-20 | SONY DEUTSCHLAND GmbH | Illumination optics, illumination unit and image generation unit |
WO2007016373A2 (en) | 2005-07-28 | 2007-02-08 | Synditec, Inc. | Pulsed current averaging controller with amplitude modulation and time division multiplexing for arrays of independent pluralities of light emitting diodes |
US7450193B2 (en) | 2005-08-05 | 2008-11-11 | Lg Electronics Inc. | LCOS panel assembly of projection system and image matching method having quarter wave plate holder rotatably supported about panel support by respectively slots and protrusions |
US7408558B2 (en) | 2005-08-25 | 2008-08-05 | Eastman Kodak Company | Laser-based display having expanded image color |
US7317403B2 (en) | 2005-08-26 | 2008-01-08 | Philips Lumileds Lighting Company, Llc | LED light source for backlighting with integrated electronics |
DE602006015748D1 (en) | 2005-08-31 | 2010-09-09 | Lg Electronics Inc | Portable projector |
JP4522346B2 (en) | 2005-09-09 | 2010-08-11 | キヤノン株式会社 | Color processing method and apparatus |
US7413311B2 (en) | 2005-09-29 | 2008-08-19 | Coherent, Inc. | Speckle reduction in laser illuminated projection displays having a one-dimensional spatial light modulator |
KR100985860B1 (en) | 2005-11-08 | 2010-10-08 | 삼성전자주식회사 | Light emitting apparatus and control method thereof |
KR100782826B1 (en) | 2005-12-10 | 2007-12-06 | 삼성전자주식회사 | Image capture device and method, and recording medium storing program for performing the method |
WO2007078563A2 (en) | 2005-12-21 | 2007-07-12 | Thomson Licensing | Constrained color palette in a color space |
US7342658B2 (en) | 2005-12-28 | 2008-03-11 | Eastman Kodak Company | Programmable spectral imaging system |
US7649326B2 (en) | 2006-03-27 | 2010-01-19 | Texas Instruments Incorporated | Highly efficient series string LED driver with individual LED control |
JP4920679B2 (en) | 2006-04-12 | 2012-04-18 | パナソニック株式会社 | Projection display device and speckle reduction element |
JP4193864B2 (en) | 2006-04-27 | 2008-12-10 | セイコーエプソン株式会社 | Projector, screen, projector system, and scintillation removal apparatus |
US7723926B2 (en) | 2006-05-15 | 2010-05-25 | Supertex, Inc. | Shunting type PWM dimming circuit for individually controlling brightness of series connected LEDS operated at constant current and method therefor |
US7619808B2 (en) | 2006-06-06 | 2009-11-17 | Alcatel-Lucent Usa Inc. | Light wave front construction |
TWI316781B (en) | 2006-07-20 | 2009-11-01 | Au Optronics Corp | Dc to dc conversion circuit with variable output voltage |
RU2447624C2 (en) | 2006-09-20 | 2012-04-10 | Конинклейке Филипс Электроникс Н.В. | System for light-emitting element control and lighting system containing it |
US20080100224A1 (en) | 2006-10-31 | 2008-05-01 | Felder Matthew D | System on a chip with backlight controller |
US7902771B2 (en) | 2006-11-21 | 2011-03-08 | Exclara, Inc. | Time division modulation with average current regulation for independent control of arrays of light emitting diodes |
US7972020B2 (en) | 2006-12-29 | 2011-07-05 | Texas Instruments Incorporated | Apparatus and method for reducing speckle in display of images |
US7502160B2 (en) | 2007-03-02 | 2009-03-10 | Alcatel-Lucent Usa Inc. | Speckle reduction in laser-projector images |
US7595622B1 (en) | 2007-04-05 | 2009-09-29 | National Semiconductor Corporation | System and method for providing a sample and hold circuit for maintaining an output voltage of a constant current source circuit when a feedback loop is disconnected |
WO2008144961A1 (en) | 2007-05-31 | 2008-12-04 | Texas Instruments Incorporated | Regulation for led strings |
US7782521B2 (en) | 2007-05-31 | 2010-08-24 | Texas Instruments Incorporated | System and method for displaying images |
WO2008144962A1 (en) | 2007-05-31 | 2008-12-04 | Texas Instruments Incorporated | Sample and hold scheme for a feedback network of a power converter |
US7750286B2 (en) | 2007-06-19 | 2010-07-06 | Alcatel-Lucent Usa Inc. | Compact image projector having a mirror for reflecting a beam received from a polarization beam splitter back to the polarization beam splitter |
TWI366391B (en) | 2007-06-28 | 2012-06-11 | Novatek Microelectronics Corp | Method and circuit for correcting signals and image correcting method and circuit using the same |
CN101855902A (en) | 2007-09-25 | 2010-10-06 | 以克斯普雷有限公司 | Micro-projector |
US7862183B2 (en) | 2007-10-16 | 2011-01-04 | Alcatel-Lucent Usa Inc. | Speckle reduction using a tunable liquid lens |
US20090153579A1 (en) | 2007-12-13 | 2009-06-18 | Hirotoshi Ichikawa | Speckle reduction method |
US8935609B2 (en) | 2007-12-18 | 2015-01-13 | International Business Machines Corporation | Method and system to secure the display of advertisements on web browsers |
WO2010023444A1 (en) | 2008-08-27 | 2010-03-04 | Milan Momcilo Popovich | Laser display incorporating speckle reduction |
-
2008
- 2008-01-22 US US12/009,991 patent/US8129669B2/en not_active Expired - Fee Related
-
2009
- 2009-01-21 CN CN2009801028406A patent/CN101925856B/en not_active Expired - Fee Related
- 2009-01-21 EP EP09704136A patent/EP2240824A1/en not_active Withdrawn
- 2009-01-21 JP JP2010544315A patent/JP5296101B2/en not_active Expired - Fee Related
- 2009-01-21 KR KR1020107016407A patent/KR20100095640A/en active Application Filing
- 2009-01-21 WO PCT/US2009/000349 patent/WO2009094133A1/en active Application Filing
- 2009-01-21 KR KR1020127031496A patent/KR20130006528A/en active Search and Examination
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010022613A1 (en) * | 1997-03-24 | 2001-09-20 | Sony Corporation | Picture display method and apparatus |
US20060175622A1 (en) * | 2003-07-24 | 2006-08-10 | Peter Richards | Micromirror-based projection system and a method of making the same |
US20050243282A1 (en) * | 2004-04-30 | 2005-11-03 | Peterson Mark D | Method and apparatus for sequencing light emitting devices in projection systems |
US20070070296A1 (en) * | 2005-09-29 | 2007-03-29 | Casio Computer Co., Ltd. | Projector and method of controlling a light source for use with the projector |
Also Published As
Publication number | Publication date |
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KR20130006528A (en) | 2013-01-16 |
US20090185140A1 (en) | 2009-07-23 |
KR20100095640A (en) | 2010-08-31 |
US8129669B2 (en) | 2012-03-06 |
CN101925856B (en) | 2012-06-13 |
JP2011510356A (en) | 2011-03-31 |
CN101925856A (en) | 2010-12-22 |
JP5296101B2 (en) | 2013-09-25 |
EP2240824A1 (en) | 2010-10-20 |
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