CN102124397B - The recirculating system of brightness and method and the projector in conjunction with it is increased for using the photoconductive tube with one or more light source - Google Patents

The recirculating system of brightness and method and the projector in conjunction with it is increased for using the photoconductive tube with one or more light source Download PDF

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Publication number
CN102124397B
CN102124397B CN200980131850.2A CN200980131850A CN102124397B CN 102124397 B CN102124397 B CN 102124397B CN 200980131850 A CN200980131850 A CN 200980131850A CN 102124397 B CN102124397 B CN 102124397B
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led
recycle
light
photoconductive tube
output
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CN102124397A (en
Inventor
肯尼思·利
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Wavien Inc
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Wavien Inc
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Priority claimed from US12/321,471 external-priority patent/US20090128781A1/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/147—Beam splitting or combining systems operating by reflection only using averaging effects by spatially variable reflectivity on a microscopic level, e.g. polka dots, chequered or discontinuous patterns, or rapidly moving surfaces
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/143—Beam splitting or combining systems operating by reflection only using macroscopically faceted or segmented reflective surfaces
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • 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
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • 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
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres
    • 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

Abstract

For the recirculating system and the method that use at least one recycle photoconductive tube with at least one light source to increase the brightness of light output.Part I light is reflected back light source by the output terminal of recycle photoconductive tube, Part II light is reflected back the input end of recycle photoconductive tube, and launches remainder light as output.Recirculating system is incorporated in projector, the colour projection's image increased to provide brightness.Light source can be White LED, color LED and dual paraboloid reflector (DPR) lamp.

Description

The recirculating system of brightness and method and the projector in conjunction with it is increased for using the photoconductive tube with one or more light source
Technical field
The present invention relates to the system and method for providing more high brightness on screen by the light from one or more light source being efficiently coupled into output, carrying out recycle to increase brightness and to be combined in projector especially by using the photoconductive tube with one or more light source.
Background technology
All light source is used in all types of illumination and projection application.Multiple application all requires the illuminator in very little effective emitting area with high brightness level.This high brightness level can realize by increasing more multiple light courcess traditionally.But, if for the limited space of integrated optical source, be then technically impossible, and due to integrated and use multiple light source to be expensive, so be difficult to economically implement.Thus the what one hopes or wishes for that the present invention is based on the brightness increasing light source when not increasing quantity of light source is carried out.
Such as, there are based on the TV (MDTV) of miniscope the potentiality of low cost and screen sizes.MDTV is usually by arclighting for tradition.But this light source is the brightest in least cost, but white light is separated into the needs of three kinds of colors and short life is less-than-ideal.Along with the development of LED technology, must consider, in MDTV, LED is used as light source, to win other benefits of long life characteristic sum of LED, such as connect instantaneously.But at present, apply compared with the low cost of giant-screen for using little imaging panel or having, LED is enough not bright.LED recirculation schemes can be used to strengthen the brightness of light source, see the U.S. patent 6,869,206 that the people such as Zimmerman deliver.But the people such as Zimmerman describe in the light reflection cavity being included in by LED and having a light output hole.And the U.S. patent 6,144,536 that the people such as Zimmerman deliver describes the fluorescent light with glass shell, fluorescent coating surrounds the empty internal that gas is filled.The a part of light generated by fluorescent coating is recycled and feeds back to fluorescent coating.Claimed invention is based on the what one hopes or wishes for providing more high brightness on screen; by the light from one or more light source is efficiently coupled into output, particularly increases brightness and be attached in projector carry out by using the photoconductive tube with one or more light source to carry out recycle.
Such as, LED is a kind of light source type used in multiple illumination application (recently especially at projection TV) of such as general illumination, architectural lighting.Because the brightness of LED is low, the extensibility of most of display or projecting apparatus system is limited, and maximum is set to maximum output at screen place by usually.When such as using in projector, LED must be luminous in little effective emitting area with high brightness level, to provide required High Light Output on projecting apparatus screen.Especially, LED must provide as by the little emitting area used in projector by the strong light that little solid angle is measured in units of lumen.
Although light emitting diode (LED) exploitation has achieved huge progress, the output brightness of current available LED has still been not enough to for most of projection application.Multiple method be proposed in conjunction with LED primary colors with export the recycle of light to increase brightness.But the great majority in these methods relate to and utilize expensive parts and/or cause the large and device of heaviness, which greatly limits their application.Thus; claimed invention, based on the what one hopes or wishes for being provided for the system and method increasing brightness, is carried out recycle by using the photoconductive tube with one or more light source (including but not limited to LED, arc lamp, UHP lamp, microwave lamp etc.) addressed these problems and provides the projector in conjunction with it to carry out.The all right multiplexing color of projector of claimed invention, shows to provide colour element and sequential display.
Summary of the invention
Thus the target of claimed invention is to be provided for using the photoconductive tube with one or more light source to increase recirculating system and the method for brightness.
Another target of claimed invention is to provide the projector in conjunction with aforementioned recirculating system.
The exemplary embodiment of the invention protected as requested, recirculating system and method use at least one recycle photoconductive tube with at least one light source to increase the brightness of light output.Part I light is reflected back light source by the output terminal of recycle photoconductive tube, Part II light is reflected back the input end of recycle photoconductive tube, and launches remainder light as output.Recirculating system is incorporated in projector, the colour projection's image increased to provide brightness.Light source can be White LED, color LED and dual paraboloid reflector (DPR) lamp.
Other targets multiple of claimed invention, advantage and feature will become more obvious from detailed description subsequently, and new feature will particularly point out in the following claims.
Accompanying drawing explanation
Provided by example and be not intended to claimed invention to be limited to individually its following detailed description, will understand best by reference to the accompanying drawings, wherein, the like in multiple figure or feature are represented by similar reference number.
Fig. 1 illustrates the skeleton view comprising the recirculating system of photoconductive tube 1000 of the exemplary embodiment of the invention protected as requested;
Fig. 2 (a)-(c) illustrates the sectional view of the recirculating system of the exemplary embodiment of the invention protected as requested;
Fig. 3 illustrates the sectional view of the recirculating system of the exemplary embodiment of the invention protected as requested, and this recirculating system comprises six beam combiners and at least two photoconductive tubes;
Fig. 4 (a)-(c) illustrates the skeleton view being coated with the diagonal surface of six beam combiners of part reflectance coating or space reflection part of the exemplary embodiment of the invention protected as requested;
Fig. 5 and Fig. 6 illustrates the sectional view of the recirculating system of Fig. 3 of the photoconductive tube of combination at least two Fig. 1 of the exemplary embodiment of the invention protected as requested;
Fig. 7 illustrates the sectional view with the recirculating system of the Fig. 6 of the optics placed in a linear fashion of the exemplary embodiment of the invention protected as requested;
Fig. 8 illustrates the sectional view comprising the recirculating system of Fig. 6-Fig. 7 of the photoconductive tube of at least three Fig. 1 of the exemplary embodiment of the invention protected as requested;
Fig. 9 illustrates the skeleton view of the photoconductive tube comprising at least four Fig. 1 of the exemplary embodiment of the invention protected as requested and the recirculating system of at least two six beam combiners;
Figure 10 be the exemplary embodiment of the invention protected as requested comprise beam combiner, two photoconductive tubes and two sectional views based on the recirculating system of the light source of DPR;
Figure 11 is the skeleton view of the beam combiner of the exemplary embodiment of the invention protected as requested;
Figure 12 is the sectional view comprising the recirculating system of Fig. 1 of reflective polarizer of the exemplary embodiment of the invention protected as requested;
Figure 13 is the sectional view comprising the recirculating system of Fig. 7 of reflective polarizer of the exemplary embodiment of the invention protected as requested;
Figure 14 is the sectional view comprising the recirculating system of tapered polarized light conduit system and DPR lamp of the exemplary embodiment of the invention protected as requested;
Figure 15 (a) is the sectional view of the tapered polarized light conduit system of Figure 14 of the exemplary embodiment of the invention protected as requested;
Figure 15 (b) is the skeleton view of the reflection hole of the tapered polarized light conduit system of Figure 15 (a) of the exemplary embodiment of the invention protected as requested;
Figure 16 is the sectional view comprising the tapered polarized light conduit system of at least two Figure 14 and the recirculating system of beam combiner of the exemplary embodiment of the invention protected as requested;
Figure 17 is the sectional view of the LED projector in conjunction with recirculating system of the exemplary embodiment of the invention protected as requested;
Figure 18 is the sectional view of the LED projector in conjunction with recirculating system of the exemplary embodiment of the invention protected as requested;
Figure 19 is the sectional view utilizing the LED projector of Figure 18 of two LED of the exemplary embodiment of the invention protected as requested;
Figure 20 is the skeleton view being assemblied in two and four LED on heat-radiating substrate of the exemplary embodiment of the invention protected as requested;
Figure 21 be the exemplary embodiment of the invention protected as requested as Solid–state Optics parts the sectional view of recycle reverberator;
Figure 22-Figure 24 is the sectional view comprising the light projector of lenslet array of the exemplary embodiment of the invention protected as requested;
Figure 25-Figure 27 is the sectional view comprising the recirculating system of beam splitter/combination (BSC) system of the exemplary embodiment of the invention protected as requested;
Figure 28 (a)-(f) illustrates the LED of the exemplary embodiment of the invention protected as requested or the various configurations of LED chip;
Figure 29 is the sectional view of the RGB sequential projectors of the exemplary embodiment of the invention protected as requested; And
Figure 30 is the sectional view of the light source of the exemplary embodiment of the invention protected as requested.
Embodiment
With reference to accompanying drawing, the exemplary embodiment of claimed invention is described now.These embodiments illustrate principle of the present invention, and should not be construed as limiting the scope of the invention.
Light from one or more light source is efficiently coupled into and exports and more high brightness is provided on screen.Although the brightness of light source can not increase in standard illuminants system, claimed invention utilizes recycle and the combination of light source, and screen provides higher output intensity.Claimed invention, by from the recycle of the output of one or more light source and combination, provides the height from one or more light source to export.The light source of the various configurations and embodiment that can be applicable to claimed invention is arc lamp, UHP lamp, LED, microwave lamp etc.
Forward Fig. 1 to now, the exemplary embodiment of the invention protected as requested shows the recirculating system 1000 comprising photoconductive tube 1100.Photoconductive tube 1100 can be solid or hollow.Photoconductive tube 1100 can be straight or tapered.The input end 1200 of photoconductive tube 1100 comprises reflection input surface or reflection importation 1210 and input hole or transmissive portion 1220.Reflection input surface 1210 comprises the part that can reflect with the input end 1200 of reflected light, and input hole 1220 comprise transparent with will input Transmission light to the remainder of the input end 1200 of photoconductive tube 1100.An aspect of the invention protected as requested, input hole 1220 can be rectangle, circular or any suitable shape, and reflects input surface 1210 and can comprise the optional wave plate (not shown) supporting polarized light system.
The output terminal 1300 of photoconductive tube 1100 comprises reflection output surface or reflected output portion 1310 and delivery outlet or transmitted output portion 1320.Reflection output surface 1310 comprises the part that can reflect with the output terminal 1300 of reflected light, and delivery outlet 1320 comprises transparent in transmission or the remainder that exports from the output terminal 1300 of the light of photoconductive tube 1100.An aspect of the invention protected as requested, delivery outlet 1320 can be rectangle, circular or any suitable shape, and reflects output surface 1310 and can comprise the optional wave plate (not shown) supporting polarized light system.
The exemplary embodiment of the invention protected as requested, delivery outlet 1320 can be formed to mate with size with the shape of required illumination or optical projection system.Such as, delivery outlet 1320 can be circular or aspect ratio is the rectangle of 6: 9 or 4: 3.The input light entering photoconductive tube 1100 by input hole 1220 is transmitted to the output terminal 1300 of photoconductive tube 1100, and is partly gone out from photoconductive tube 1100 by delivery outlet 1320.That is, part light is reflected back toward input end 1200, and part light is gone out from photoconductive tube 1100 by delivery outlet 1320.Part light is reflexed to delivery outlet 1320 from input hole 1220 by photoconductive tube 1100.The light source that can use at input hole 1220 place can be LED, from the output of photoconductive tube, carrys out the output of the fluorophor of free LED or laser excites, or the output of up-conversion from LED or the pumping of laser instrument institute.Light source can also be arc lamp, microwave lamp or the lamp with reverberator.
Fig. 2 (a)-(c) illustrates the multiple example of the recirculating system 1000 of the inventive embodiment protected as requested.Fig. 2 (a) illustrates the sectional view of the recirculating system 1000 comprising the tapered photoconductive tube 1100 with LED 1400.Be input to the light of tapered photoconductive tube 1100 from LED 1400.The output terminal 1300 of tapered photoconductive tube 1100 comprises for the delivery outlet 1320 of transmission part light with for making the reflection output surface 1310 of remainder light recycle.The light exported from LED 1400 is coupled to tapered photoconductive tube 1100, and a part of light is reflected back toward LED 1400.Part light reflects (or recycle) as light output by LED 1400 and returns tapered photoconductive tube 1100.
Fig. 2 (b) illustrates another example of the recirculating system 1000 of the inventive embodiment protected as requested, and wherein, the input end 1200 of tapered photoconductive tube 1100 is greater than LED 1400.Be input to the light of tapered photoconductive tube 1100 from LED 1400.The output terminal 1300 of tapered photoconductive tube 1100 comprises for the delivery outlet 1320 of transmission part light with for making the output reflection surface 1310 of remainder light recycle.The remaining area of input end 1200 or reflection input surface 1210 can reflect and be used for making the recycle of part light, as shown in Figure 1.
Fig. 2 (c) illustrates the example of the recirculating system 1000 of the inventive embodiment protected as requested; wherein; to photoconductive tube 1100 input light from light source (such as; dual paraboloid reflector system, elliptic system etc.) output of input photoconductive tube 1500 (it can be straight, tapered, hollow or solid, is similar to photoconductive tube 1100) that is coupled.Although not shown, claimed recirculating system 1000 can utilize other light sources, includes but not limited to LED, microwave lamp, the fluorophor by short wavelength LED or laser excites or the up-conversion etc. by long wavelength LED or laser excites.
Forward Fig. 3 to now, show the recirculating system 2000 of the exemplary embodiment of the invention protected as requested.Recirculating system 2000 comprises six light beam/optical combiners 2100 and at least two photoconductive tubes (are labeled as LP 1and LP 2).LP 1and LP 2substantially the photoconductive tube 1100 of the recirculating system 1000 in Fig. 1 is similar to.Recirculating system 2000 can combine multiple light source.In figure 3, the output of recirculating system 2000 is combinations of two light sources.Each light source 2200 comprises LED1400 and (is labeled as LED 1and LED 2) and photoconductive tube LP 1or LP 2.From LED 1(1400) light is coupled to LP 1(1100) optical combiner 2100 is entered.All six faces of optical combiner 2100 are all polished, make surface be used to transmission and total internal reflection (TIR).The triangular surface 2400 of optical combiner 2100 is also polished, makes optical combiner 2100 be used as waveguide, thus guides from photoconductive tube LP 1, LP 2(1100) light.The exemplary embodiment of the invention protected as requested, the diagonal surface 2110 of beam combiner 2100 is coated, with providing unit sub reflector/transmission surface.Diagonal surface 2110 can be coated with the part reflectance coating shown in Fig. 4 (a) or Fig. 4 (b) and the space reflection part shown in Fig. 4 (c).The number percent of reflection and transmission can be optimised for maximum output according to application.An aspect of the invention protected as requested, the beam combiner 2100 with all six polishing side/face/surfaces is used as waveguide, instead of bulk optics body (bulkoptics).LP 1(1100) size exported is mated with the face of beam combiner 2100.From LP 1(1100) part light is reflected onto LP 2(1100) and by LED 2(1400) recycle.From LP 2(1100) a part of light is reflected onto LP 1(1100) and by LED 1(1400) recycle.A part of light from LP1, LP2 (1100) is gone out from recirculating system 2000 by delivery outlet 2130 as output light, and remainder light is reflected back recirculating system 2000 by end reflector 2120.Recirculating system 2000 can comprise alternatively for by a part of light output is reflected back recirculating system 2000, makes reflecting surface or the reflection hole 2140 of a part of light output recycle.In order to additionally promote TIR, the exemplary embodiment protected as requested, recirculating system 2000 between one or more optics (such as, at LP 1and beam combiner 2100 and LP (1100) 2(1100) and between beam combiner 2100) comprise optional air gap or low-refraction glue 2300.
Forward Fig. 5 and Fig. 6 to now, the exemplary embodiment of the invention protected as requested, show the recirculating system 2000 of Fig. 3 of the photoconductive tube 1100 of composition graphs 1.At this by optics total for the recirculating system 2000 of the recirculating system 1000 and Fig. 3, Fig. 5 and Fig. 6 that no longer describe Fig. 1.In Figure 5, each LED 1400 (LED 1, LED 2) be coupled or cover photoconductive tube 1100 (LP 1, LP 2) the part of input end 1200.The remainder of input end 1200 is coated with reflectance coating, to provide input reflection surface 1210.The output of the recirculating system 2000 of Fig. 5 is the combination of two LED inputs.In figure 6, the LED 1400 (LED in Fig. 5 1, LED 2) replace with light source, include but not limited to the output from photoconductive tube, light modulation (arc lamp, microwave lamp etc.) etc. by reverberator or lens focus.Alternatively, the exemplary embodiment of the invention protected as requested, the optics of the recirculating system of Fig. 6 can be placed in a linear fashion, as shown in Figure 7.In order to promote TIR in addition, the exemplary embodiment of the invention protected as requested, recirculating system 2000 (such as, LP between one or more optics of Fig. 5-Fig. 7 1and beam combiner 2100 and LP (1100) 2(1100) and between beam combiner 2100) comprise air gap or low-refraction glue 2300.
The exemplary embodiment of the invention protected as requested, as shown in Figure 8, the recirculating system 2000 of Fig. 6 or Fig. 7 comprises the photoconductive tube of at least three Fig. 1.That is, the end reflector 2120 of the recirculating system 2000 of Fig. 6 or Fig. 7 replaces with the photoconductive tube 1100 in Fig. 8.The output of the recirculating system 2000 in Fig. 8 is combinations of three light sources.The light source that can use at input hole 1220 place can be LED, from photoconductive tube output, carry out the output etc. of the output of the fluorophor of free LED or laser excites or the up-conversion from LED or the pumping of laser instrument institute.In order to promote TIR in addition, the exemplary embodiment of the invention protected as requested, the recirculating system 2000 of Fig. 8 comprises optional air gap or low-refraction glue 2300 between one or more optics.
The exemplary embodiment of the invention protected as requested, Fig. 9 illustrates the recirculating system 3000 comprising at least four photoconductive tubes 1100 and at least two beam combiners 2100.Output from least four group light sources is combined as single output by recirculating system 3000.Although Fig. 9 shows the recirculating system 3000 with two beam combiners 2100, can expect, the recirculating system 2000 of Fig. 9 can comprise two or more beam combiners 2100.An aspect of the invention protected as requested, the direction of the diagonal surface 2110 of two beam combiners 2100 is different.The direction of the diagonal surface 2110 of beam combiner (1) is oriented and makes light recycle, and the direction of the diagonal surface 2110 of beam combiner (2) is oriented output light.The triangular surface 2400 of beam combiner 2100 is polished, makes beam combiner 2100 be used as waveguide, thus guides from four photoconductive tube 1100 (LP 1, LP 2, LP 3, LP 4) light.In order to promote TIR in addition, the exemplary embodiment of the invention protected as requested, recirculating system 3000 (such as, LP between one or more optics of Fig. 9 1and beam combiner (1) and LP (1100) 2(1100) and between beam combiner (1)) comprise air gap or low-refraction glue 2300.
Forward Figure 10 to now, show the recirculating system 4000 comprising beam combiner 2100, two photoconductive tubes 1100 and two light sources 4200 of the exemplary embodiment of the invention protected as requested.Light source 4200 is dual paraboloid reflector (DPR) lamps.First light source DPR lamp 14200 are coupled to the first tapered photoconductive tube TLP 1(1100), then it is coupled to photoconductive tube LP 1(1100) input hole 1220.Secondary light source DPR lamp 24200 are coupled to the second tapered photoconductive tube TLP 2(1100), then it is coupled to photoconductive tube LP 2(1100) input hole 1220.Photoconductive tube 1100 (LP in recirculating system 4000 1and LP 2) and the class of operation of beam combiner 2100 be similar to photoconductive tube 1100 (LP in the recirculating system 2000 of Fig. 6-Fig. 7 1and LP 2) and beam combiner 2100.Recirculating system 4000 uses beam combiner 2100 to combine the output of second group of light source 4200 and first group of light source 4200, to provide single output.In order to promote TIR in addition, the exemplary embodiment of the invention protected as requested, the recirculating system 4000 of Figure 10 comprises (such as, LP between one or more optics 1and beam combiner 2100 and TLP (1100) 2and LP (1100) 2(2100) between) air gap or low-refraction glue 2300.
The exemplary embodiment of the invention protected as requested; as shown in figure 11, output face or the surface 2500 of the beam combiner 2100 of claimed recirculating system (2000,3000,4000) are the reflection output surfaces 2500 with transmissive apertures or delivery outlet 2130.An aspect of the invention protected as requested, the shape of delivery outlet 2130, size and position can be configured to application-specific need mate.
Forward Figure 12 to now, the exemplary embodiment of the invention protected as requested, the recirculating system 1000 of Fig. 1 comprise in addition be coupled to photoconductive tube 1110 delivery outlet 1320 with the reflective polarizer 1600 providing polarization to export.In order to raise the efficiency, an aspect of the invention protected as requested, the reflection input surface 1210 of photoconductive tube 1100 can comprise optional wave plate 1230.
The exemplary embodiment of the invention protected as requested, as shown in figure 13, the recirculating system 2000 of Fig. 7 comprise in addition be coupled to beam combiner 2100 delivery outlet 2130 with the reflective polarizer 1600 providing polarization to export.In order to raise the efficiency, an aspect of the invention protected as requested, the reflection input surface 1210 of photoconductive tube 1100 can comprise optional wave plate 1230.Two arbitrary sources are grouped together by the beam combiner 2100 of the recirculating system 2000 of Figure 13, to generate the single output of polarized light.
Forward Figure 14, Figure 15 (a)-(b) to now, show the recirculating system 5000 of the exemplary embodiment of the invention protected as requested.Recirculating system 5000 comprises and is configured to use the tapered polarized light conduit system 5100 of carrying out recycle together with DPR lamp or system 4200.Tapered polarized light conduit system 5100 comprises two tapered photoconductive tube 1100 (TLP with common surface 1, TLP 2), common surface is filled with transparent, glue, epoxy resin or fluid 5500 that preferred index is mated.Enter tapered photoconductive tube 1100 (TLP 1) input light be coupled to tapered photoconductive tube 1100 (TLP 2), and export from TLP as polarization 2go out.A part exports light and is reflected by optional reflection hole 5300.The example in the hole of output reflection shown in Figure 15 (b), the shape and size of transmissive apertures 5310 can change according to application.Untapped polarized light is reflected back DPR lamp 4200 by reflective polarizer 5400.The TLP of tapered polarized light conduit system 5100 21100 comprise the reflecting surface 5200 with optional wave plate 5210, for a part of light is reflected back reflective polarizer 5400.
The exemplary embodiment of the invention protected as requested, the recirculating system 6000 of Figure 16 comprises beam combiner 2100 and at least two tapered polarized light conduit systems 5100 as Figure 15 of light source.Should expect, because the output of two tapered polarized light conduit systems 5100 of Figure 16 is coupled to beam combiner 2100, thus the tapered polarized light conduit system 5100 of Figure 16 does not ask reflective polarizer 5400 and optional reflection hole 5300.The output terminal of the beam combiner 2100 of Figure 16 comprises reflective polarizer 6100 and optional reflection hole 6200, its optional reflection hole 5300 being similar to reflective polarizer 5400 and having transmissive apertures 5310.Although not shown in figure 16, each tapered polarized light conduit system 5100 of Figure 16 can be coupled to DPR lamp 4200, as shown in figure 14.At least two light sources 5100 can be combined as single polarised output light beam by the beam combiner 2100 of recirculating system 6000.Should expect, recirculating system 6000 can use one or more beam combiner 2100 to combine more than two light sources 5100, is similar to the circulation system 300 of Fig. 9.
LED projection system is fast-developing, and the output of LED simultaneously increases.Common LED optical projection system uses three-color LED, that is, red, green and blue.Output from each LED is combined into for sequential multiplexing with the single output generating color output image.Three-color LED is made up of different materials, and has different temperatures interdependence.In order to keep color constancy on screen, FEEDBACK CONTROL must make typical LED projection system become expensive and complicated.Use the traditional lighting of White LED to be considered to color poor, White LED does not have enough red content simultaneously.
Claimed invention overcomes these restrictions using White LED in traditional lighting and optical projection system.The exemplary embodiment of the invention protected as requested, recycle White LED projector is provided with the redness of enhancing.Forward Figure 17 to now, the projector 7000 in conjunction with recirculating system of the exemplary embodiment of the invention protected as requested is shown.Projector 7000 comprises imager panel 7300, projection engine 7100, projecting lens 7200 and relay lens 7400.Projector 7000 utilizes the light launched by LED 1400, and uses recirculating system 1000 that a part of utilizing emitted light recycle is returned LED 1400, for increasing brightness.Although Figure 17 shows the projector 7000 in conjunction with recirculating system 1000, should expect, projector 7000 can be combined in this any recirculating system discussed.The output of tapered photoconductive tube 1100 is coupled to projection engine 7100 by relay lens 7400 and colour wheel 7500, makes to form sequential color system.
LED 1400 can be white fluorophor LED 1400, the white fluorophor by LED or laser pumping, preferred blue or UV.Should expect, LED 1400 is not limited to White LED, and claimed invention can utilize color LED to provide the colored LED projector strengthened as described herein.Preferably, LED 1400 is assembled on heat-radiating substrate 1410.The output of LED 1400 is coupled to photoconductive tube 1100, and it can be hollow or solid, tapered or straight, and output can be trimmed for application-specific.Photoconductive tube 1110 is positioned at the output of LED 1400, and is aligned for maximum coupling efficiency.The part on the surface of the output terminal 1300 of photoconductive tube 1100 is coated with reflectance coating 1310 or uses catoptron or reverberator 1310, makes a part for the output of only photoconductive tube 1100 be coupled to projection engine 7100 by colour wheel 7500.Then, use relay lens 7400 and projection engine 7100 that the output of photoconductive tube 1110 is projected to imaging or imager panel 7300.Then, be projected on screen (not shown) by projecting lens 7200 at the final image at imaging panel 4300 place.
The exemplary embodiment of the invention protected as requested, the output of photoconductive tube 1110 can be coated with only reflects selective wavelength and the output coating of the light of the every other wavelength of transmission, makes to strengthen the color expected.Such as, the output terminal 1300 of photoconductive tube 1100 can be coated, with reflect blue and the light of the every other color of transmission.That is, recirculating system 1000 will strengthen the recycle of blue light, thus strengthens other colors being transmitted to projection engine 7100.
The exemplary embodiment of the invention protected as requested, colour wheel 7500 comprises two or more fragments of the light filter with different colours (such as, for the redness of trichromatic system, blueness and green, or red, green, blue and colourless).Therefore, color projecting apparatus 7000 utilizes each color to be shown sequentially to generate the sequential color system of coloured image.
The exemplary embodiment of the invention protected as requested, LED 1400 DC electric current drives.Alternatively, LED 1400 can drive by the variable-current synchronous with colour wheel 7500.Such as, LED 1400 can have different current value, as the function of which color fragment before photoconductive tube 1100 of colour wheel 7500.In a particular embodiment, apply higher electric current when red tab section is before photoconductive tube, make to overcome red shortage by higher electric current.
The exemplary embodiment of the invention protected as requested, imager panel 7300 can be digital micromirror elements (DMD), the DMD such as manufactured by Texas Instrument or other producers.The exemplary embodiment of the invention protected as requested, imager panel 7300 can be liquid crystal on silicon (LCOS) panel.The recirculating system 1000 of Figure 17 can comprise optional reflective polarizer 5400, and it is positioned at output terminal 1300 place of photoconductive tube 1100, makes undesired polarized light can be reflected back toward photoconductive tube 1100, for recycle.
The exemplary embodiment of the invention protected as requested, the white fluorophor of LED 1400 can by the blu-ray drives of being launched by LED 1400.In the process passing through recirculating system 1000 recycle, the blue light of recycle is repeated to absorb by the fluorophor of LED 1400, and can be re-emitted as green glow and ruddiness.As a result, the light of recycle has lower blueness and exports, higher redness and green output.
The exemplary embodiment of the invention protected as requested, requires the application of more high-output power, and projector 7000 utilizes multiple LED 1400 to drive single or more fluorophor fragment, makes utilizing emitted light can be coupled to the photoconductive tube 1100 of recirculating system 1000.Should expect, prism, photoconductive tube and other similar opticses (each all as waveguide) can also be used to combine output from multiple LED 1400, to produce higher output on a screen (not shown).Such as, if each side of prism by reflectivity ground polishing to promote TIR, then prism can be used as waveguide.
The benefit of light of fluorophor LED of using to make clear one's meaning and position comprises:
1, white fluorophor LED has shorter wavelength, comparatively large band gap, thus in higher junction temperature operation, can reduce cooling requirements.
2, single color LED can be used, thus eliminate the needs of multiplexing multiple color LED.
3, colour wheel is the parts of very good exploitation and has the very long life-span.
4, can use standard projection engine structure, there are a large amount of many years of experience producing these standard projection engines in many producers.
5, the white fluorophor LED of multiple manufacturer production.6, multiple less white fluorophor LED can be used to obtain large emitting area.Emitting area does not have blank mould gap between LED, and this may reduce recycle efficiency.
Going to Figure 18 now, the exemplary embodiment of the invention protected as requested, showing the LED projector 8000 of the recycle reverberator 8100 comprised in addition for making light recycle.A part of LED output reflection is returned LED 1400 by recycle reverberator 8100, for making light recycle.LED1400 can be white or color LED.Preferably, recycle reverberator 8100 is spherical or annular or elliptical reflector, and wherein, LED is imaged and is back to itself.The opening of recycle reverberator 8100 is used as delivery outlet 1320.An aspect of the invention protected as requested, can change the size of opening, to realize the knots modification of recycle.By using the collection lens 7600 or the output of lens combination coupling light with more than one lens 7600, and then light output is focused in photoconductive tube 1100.Photoconductive tube 1100 makes the light of the homogeneous intensity distributions of generation even in the output of photoconductive tube 1100.All the other opticses of LED projector 8000 are similar to the LED projector 7000 of Figure 17.What colour wheel 7500 can be positioned at photoconductive tube 1100 inputs or outputs end place.
The exemplary embodiment of the invention protected as requested, Figure 19 illustrates the LED projector 8000 utilizing more than one LED1400.A LED is imaged onto on another LED by recycle projector 8100, increases the recycle efficiency of LED projector 8000.Figure 20 illustrates the two or four LED1400 be assemblied on heat-radiating substrate 1410 (it can use together with LED projector 8000).When four LED, a LED is imaged onto on the 2nd LED that locates diagonally about a LED by recycle reverberator 8100, and such as, LED A is imaged onto LED A ', and LED B ' is imaged onto LED B.Gather lens 7600 to be coupled the light output of LED 1400.
The exemplary embodiment of the invention protected as requested, recycle reverberator 8100 can be solid optical component, as shown in Figure 21, such as comprises one block of glass on the partial reflection-diffraction surface with the curvature be optimised for maximum output efficiency.The solid glass 8100 being positioned at the output of LED 1400 is aligned the maximum recycle for light.A part for the output surface of solid glass 8100 is coated with reflectance coating to provide reflecting surface 8110, and remainder is transparent in be used as delivery outlet 8120.Delivery outlet 8120 can be formed by the continuous surface identical with reflecting surface 8120, and can be designed to have different curvature for optimum coupling.
Forward now Figure 22-Figure 24 to, the exemplary embodiment of the invention protected as requested, show and be configured to there is no photoconductive tube 1110 to reduce the LED projector 8000 of the manufacturing cost of LED projector 8000.The collection lens 7600 of the LED projector 8000 of Figure 18 replace with lenslet array 8200.Lenslet array 8200 can be the circle shown in Fig. 7, or the rectangle shown in Fig. 8, and be made up of more than one lens or lenslet.Lenslet can be arranged to regular array or can be arbitrary, or can be designed to the specific pattern of maximal efficiency and homogeneity.LED is imaged onto on the point in plane A (as shown in Figure 22) by each lenslet.Should expect, this in plane A is in the substantially identical position of the output terminal or face 1300 with photoconductive tube 1100.Because this in plane A is by the image construction formed by each lenslet, thus overall intensity distribution can be homogeneous.Then, by imaging panel 7300, projection engine 7100 and projecting lens 7200, output is coupled to projection screen (not shown).An aspect of the invention protected as requested, square LED 1400 can be converted to and export with the rectangle of multiple projection aspect ratio format match by lenslet array 8200.Usually, output pattern can be required any size, shape and intensity distributions.
The exemplary embodiment of the invention protected as requested; beam splitter/combination (BSC) system 9100 is comprised (wherein shown in Figure 25; all surface/face by reflectivity ground polishing, to improve TIR) and the recirculating system 9000 of two LED 1400.An aspect of the invention protected as requested, BSC 9100 comprises two prisms (all/surface all by reflectivity ground polishing, to promote TIR) becoming overall with part reflecting interface 9120.Part reflecting interface 9120 can with part reflectance coating or by using the part coating surface with reflectance coating to make.Should expect, reflectivity can be controlled by the size of coated surface area.Such as, part reflecting interface 9120 can comprise reflecting strips 9125 (illustrating) or reflective spot (not shown).
Output from LED 1400 is coupled to BSC 9100.A part of light from LED 1400 is reflected onto the output terminal 1300 of photoconductive tube 1100 as output, and a part of light is directed to another LED 1400, and remainder light is directed toward the reflecting surface of BSC 9100.Should expect, BSC 9100 is used as waveguide, this is because all six surfaces are all polished, preferably, by reflectivity ground polishing to promote TIR.Usually, the output terminal not being directed to photoconductive tube 1100 launched from LED 1400 will be recycled as the light exported, and finally go out from photoconductive tube 100 as output.According to application-specific, the output from BSC 9100 as it is can use or can be coupled through further and export photoconductive tube (not shown) (it can be straight, tapered, hollow or solid).Photoconductive tube 1100 and output photoconductive tube (not shown) can be regular photoconductive tube or the recycle photoconductive tube with part reflection output surface 1610, and can comprise reflective polarizer 1600 in addition at output terminal 1300 place to be provided for the polarization output of LCOS, LCD or other polarization related systems.
Although recirculating system 9000 comprises the single Wave guide system with BSC 9100, two LED1400 and photoconductive tube 1100, recirculating system 9000 can be extended to and comprise waveguide network.The exemplary embodiment of the invention protected as requested; Figure 26 illustrates two LED recirculating systems 9000; wherein, LED to be placed on the panel identical with waveguide (prism 9200 of photoconductive tube 1100, all polished (preferably by reflectivity ground polishing to improve TIR) and have the BSC 9100 of reflecting surface 9110).Figure 27 illustrates three LED recirculating systems 9000, comprises three LED, 1400, two photoconductive tubes 1100, two BSC 9100 with reflecting surface 9110 and a prism 9200.Should expect, recirculating system 9000 is not limited to one, two or three LED, can use waveguide network (photoconductive tube 1100, prism 9200 and BSC 9100) the multiple LED of recycle together.
The exemplary embodiment of the invention protected as requested, Figure 28 (a)-(f) illustrates the various configurations of LED or LED chip 1400." C " of label L ED or LED chip 1400 represents that LED chip 1400 is color chips, and it can be white LED chip, red LED chips, green LED chip, blue LED die, or the LED chip of any other color.Due to the imaging characteristic of recycle reverberator 8100, often couple of LED is imaged onto and goes up for recycle each other, and preferably, often couple of LED is same color.Such as, in Figure 28 (c), imaging is to C 1and C 1' be same color, imaging is to C 2and C 2' be same color etc.Figure 28 (e) illustrates the redness (R) of Figure 28 (c), green (G), blue (B) LED version, wherein, imaging is to (R, R '), (B, B ') and (G, G ').Figure 28 (d) and Figure 28 (f) illustrates other combinations that LED chip is arranged.Should expect, other combinations of LED chip and be configured in claimed invention and be possible and can expect.Note, specific LED chip arranges the application depending on claimed recirculating system.
Forward Figure 29 to now, RGB sequential projection system or the RGB sequential projectors 9500 of the exemplary embodiment of the invention protected as requested are shown.RGB sequential projectors 9500 comprises projection engine 7100, imaging panel 7300, projecting lens 7200, relay lens 7400, photoconductive tube 1100, recycle reverberator 8100, RGB LED 1400 and lenslet array 8200.RGB sequential projectors 9500 can multiplexing three kinds of colors in time, generate coloured image to use imaging panel 7300 (not shown) on screen controlled for image pixel intensities.The output of RGB LED 1400 is by recycle reverberator 8100 recycle and use lens described here, lenslet array and/or lens arra 8200 to be coupled.Should expect, because RGB LED1400 can by time division multiplex, thus do not need and in Figure 29 not shown colour wheel 7500.
The exemplary embodiment of the invention protected as requested; as shown in Figure 30, light source 9600 comprises the LED 1400 be assemblied on heat-radiating substrate 1410, recycle reverberator 8100 and can be used to general lighting or be incorporated into the optical lens system 9650 in multiple projector described here.LED 1400 can be monochrome or multi-colored led 1400.Lens combination 9650 can be configured to make light output can have the predetermined angle of divergence.An aspect of the invention protected as requested, lens combination 9650 can be configured to light output can be focused onto in target, the photoconductive tube 1100 of such as projector 9500.
The exemplary embodiment of the invention protected as requested, light source 9600 can comprise optional fan diffuser 9610, before or after it can be inserted in lens combination 9650, thus allows to regulate light output distribution further.Fan diffuser 9650 can be ground glass, holographic diffuser or lens arra.The exemplary embodiment of the invention protected as requested, recycle reverberator 8100, lens combination 9650 and optional fan diffuser 9610 can be individual unit with plastics or glass molding, for reducing parts and reducing manufacturing cost.
The exemplary embodiment of the invention protected as requested, lens combination 9650 can be configured to collimate, make light source 9600 can replace having the standard lamp of paraboloid.The one side of the invention protected as requested, lens combination 9650 can be configured to assemble, make light source 9600 can replace having the standard lamp of elliptical reflector.The one side of the invention protected as requested, lens combination 9650 can be configured to discrete, makes light source 9600 can replace the standard lamp applied for common spotlight.Should expect, lens combination 9650 can comprise optional fan diffuser 9610 in addition, thus allows to regulate light output distribution further, for optimum.
Describe the present invention, it will be apparent to those skilled in the art that and can change the present invention in many ways without departing from the spirit and scope of the present invention.Any and all this amendments are all intended to be included in the scope of following claim.

Claims (16)

1. a LED projector, comprise: for providing LED, projection engine, projecting lens, imaging panel, lenslet array, colour wheel, the recycle reverberator of input light, described recycle reverberator has center pit for a described input light output part received from described LED to described lenslet array, and has spherical, annular or elliptical shape is used for recycle for the described input light of remainder is reflected back described LED; And wherein, different colours is optically coupled to described projection engine by described colour wheel, relay lens and described imaging panel by described lenslet array in time, the forsequential color image for projecting is provided to screen by described projecting lens.
2. LED projector according to claim 1, wherein, described lenslet array is arranged to circle or rectangular array.
3. LED projector according to claim 1, also comprises:
Recycle photoconductive tube, comprises input end and output terminal;
Wherein, the described input end of described recycle photoconductive tube comprises the input hole for receiving input light from described lenslet array and reflection input surface;
Wherein, the described output terminal of described recycle photoconductive tube comprises: for by the light output from described recycle photoconductive tube to the delivery outlet of described relay lens, and for the reflection output surface of the described input end that a part of light guided towards described output terminal reflexed to described recycle photoconductive tube; And
Wherein, a part for the described a part of light reflected by described reflection output surface is transmitted through described LED to be recycled by described input hole, and the remainder of described a part of light is reflexed to the described output terminal of described recycle photoconductive tube by described reflection input surface, thus increased the described brightness of the described light of going out from described delivery outlet by the recycle of described light.
4. LED projector according to claim 3, wherein, at least one in the described reflection input surface of described recycle photoconductive tube and described reflection output surface comprises wave plate.
5. LED projector according to claim 3, comprises further: at least two LED, at least two recycle photoconductive tubes and for the output of at least two recycle photoconductive tubes described in combining to provide six beam combiners of single output beam; And wherein, each all polished to promote total internal reflection in six sides of described beam combiner, makes described beam combiner be used as waveguide.
6. LED projector according to claim 5, wherein, described beam combiner comprises coated with the diagonal surface on providing unit sub reflector surface.
7. LED projector according to claim 6, wherein, the described diagonal surface of described beam combiner comprises the space reflection part providing described part reflecting surface.
8. LED projector according to claim 5, comprises further: the air gap between each recycle photoconductive tube and described beam combiner or low-refraction glue.
9. LED projector according to claim 5, wherein, described beam combiner comprises: the reflective polarizer providing single polarised output light beam.
10. LED projector according to claim 3, comprises further: at least three LED, at least three recycle photoconductive tubes; And wherein, the output of at least three recycle photoconductive tubes described in described beam combiner combination, to provide described single output beam.
11. LED projector according to claim 4, comprise further: at least four LED, at least four recycle photoconductive tubes and at least two six beam combiners; Wherein, the described diagonal surface of the first beam combiner is oriented and makes light recycle, and the described diagonal surface of the second beam combiner is oriented the light exported from described device; And wherein, the orientation of the described diagonal surface of described first beam combiner and described second beam combiner is mutually different.
12. LED projector according to claim 3, comprise further: at the reflective polarizer of the described output of described recycle photoconductive tube; And wherein, described recycle photoconductive tube comprises the first and second tapered photoconductive tubes, and described first and second tapered photoconductive tubes have the common surface of glue, epoxy resin or the fluid being filled with index matching; Wherein, the described input light entering described first tapered photoconductive tube is coupled to described second tapered photoconductive tube; And wherein, untapped polarized light is reflected back described light source and is used for recycle by described reflective polarizer, thus increases the described brightness of described light output.
13. LED projector according to claim 3, comprise further: the reflective polarizer of at least two LED and the described output at each recycle photoconductive tube; And wherein, each recycle photoconductive tube includes: the first and second tapered photoconductive tubes, has the common surface of glue, epoxy resin or the fluid being filled with index matching; Wherein, the described input light entering described first tapered photoconductive tube is coupled in described second tapered photoconductive tube; And wherein, untapped polarized light is all reflected back respective sources and is used for recycle by the described reflective polarizer of each recycle photoconductive tube, thus increases the described brightness of described light output.
14. LED projector according to claim 3, comprise further:
At least two LED; And
Six beam splitter/combination BSC systems, its all side, all by reflectivity ground polishing, to provide reflecting surface and to promote total internal reflection (TIR), makes described BSC system be used as waveguide; And
Wherein, Part I light from each LED is reflexed to the described output terminal of described recycle photoconductive tube as output by described BSC system, Part II light from each LED is reflexed to other LED and is used for recycle, and be directed toward the reflecting surface of described BSC system from the remainder light of each LED.
15. LED projector according to claim 14, wherein, described BSC system comprises part reflecting diagonal interface.
16. LED projector according to claim 1, wherein, described imaging panel is digital micromirror elements (DMD) or liquid crystal on silicon (LCOS) panel.
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US12/321,471 US20090128781A1 (en) 2006-06-13 2009-01-20 LED multiplexer and recycler and micro-projector incorporating the Same
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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102314064A (en) * 2011-08-25 2012-01-11 北京亚视创业科技发展有限公司 Composite light tunneling used for projector (projection apparatus)
TWI450019B (en) * 2011-10-06 2014-08-21 Acer Inc Illumination system and projection apparatus
CN103309134B (en) * 2012-03-15 2016-08-31 鸿富锦精密工业（深圳）有限公司 Projection arrangement
WO2013157211A1 (en) * 2012-04-17 2013-10-24 日本電気株式会社 Projection device
TW201405048A (en) * 2012-07-19 2014-02-01 瓦維安股份有限公司 Phosphor-based lamps for projection display
CN107111046B (en) * 2014-12-02 2021-05-07 光学创新股份有限公司 High radiation LED light engine
JP6659240B2 (en) * 2015-06-01 2020-03-04 株式会社ユーテクノロジー LED lighting device
JP6749084B2 (en) * 2015-10-14 2020-09-02 株式会社ユーテクノロジー LED lighting device
TWI598540B (en) 2015-09-07 2017-09-11 台達電子工業股份有限公司 Wavelength converting module and light source module using the same
JP6653450B2 (en) * 2016-06-29 2020-02-26 パナソニックＩｐマネジメント株式会社 Light source device and lighting device
CN107044618B (en) * 2017-02-22 2020-05-05 横店集团得邦照明股份有限公司 Full-spectrum LED illuminating lamp suitable for museum
US11656474B2 (en) 2019-01-15 2023-05-23 Sony Group Corporation Collimator lens, light source device, and image display device
CN114859637A (en) * 2021-02-04 2022-08-05 苏州佳世达光电有限公司 Projection device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7052150B2 (en) * 1999-12-30 2006-05-30 Texas Instruments Incorporated Rod integrator

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5400426A (en) * 1993-08-19 1995-03-21 Siecor Corporation Fiber optic mechanical splice having grooves for dissipating index matching material impurities
GB2340619A (en) * 1998-08-11 2000-02-23 Sharp Kk Liquid crystal projector with non-uniform lenslet arrays
US6565235B2 (en) * 2000-10-26 2003-05-20 Cogent Light Technologies Inc. Folding an arc into itself to increase the brightness of an arc lamp
JP2003202523A (en) * 2001-11-02 2003-07-18 Nec Viewtechnology Ltd Polarization unit, polarization illumination device and projection type display device using the illumination device
JP3871940B2 (en) * 2002-02-15 2007-01-24 株式会社リコー Illumination device and display device
JP4667037B2 (en) * 2002-06-21 2011-04-06 ウェイヴィーン・インコーポレイテッド Multi lamp lighting system
KR20060023946A (en) * 2002-11-07 2006-03-15 소니 도이치린드 게엠베하 Illumination arrangement for a projection system
US7475992B2 (en) * 2003-06-10 2009-01-13 Abu-Ageel Nayef M Light recycler and color display system including same
JP2005091491A (en) * 2003-09-12 2005-04-07 Seiko Epson Corp Lighting device and projection display device
JP4677724B2 (en) * 2004-02-17 2011-04-27 セイコーエプソン株式会社 Projection type display device and control method of projection type display device
JP4144532B2 (en) * 2004-02-23 2008-09-03 セイコーエプソン株式会社 Illumination device and projection display device
US7261453B2 (en) * 2005-01-25 2007-08-28 Morejon Israel J LED polarizing optics for color illumination system and method of using same
EP1846799A4 (en) * 2005-02-09 2011-01-26 Inc Wavien Etendue efficient combination of multiple light sources
JP4910315B2 (en) * 2005-06-20 2012-04-04 セイコーエプソン株式会社 Display device and light emitting device
US20070284565A1 (en) * 2006-06-12 2007-12-13 3M Innovative Properties Company Led device with re-emitting semiconductor construction and optical element
KR101678688B1 (en) * 2006-06-13 2016-11-23 웨이비엔, 인코포레이티드 Illumination system and method for recycling light to increase the brightness of the light source
US20080030974A1 (en) * 2006-08-02 2008-02-07 Abu-Ageel Nayef M LED-Based Illumination System
KR20080021426A (en) * 2006-09-04 2008-03-07 삼성테크윈 주식회사 Micro projector
JP2008209440A (en) * 2007-02-23 2008-09-11 Seiko Epson Corp Optical device and projector

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7052150B2 (en) * 1999-12-30 2006-05-30 Texas Instruments Incorporated Rod integrator

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