CN201134006Y - Light source for projection system and projection display device - Google Patents
Light source for projection system and projection display device Download PDFInfo
- Publication number
- CN201134006Y CN201134006Y CNU2007203057454U CN200720305745U CN201134006Y CN 201134006 Y CN201134006 Y CN 201134006Y CN U2007203057454 U CNU2007203057454 U CN U2007203057454U CN 200720305745 U CN200720305745 U CN 200720305745U CN 201134006 Y CN201134006 Y CN 201134006Y
- Authority
- CN
- China
- Prior art keywords
- light
- laser
- light source
- supply apparatus
- catoptron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model provides a light source device, which has high brightness, high contrast and high color saturation and is used in a projection system. And the utility model also provides a projection display device. The light source device comprises a supplementary light source, a laser light source and a reflector that is used for compounding the light emitted by the supplementary light source and the laser emitted by the laser source; the reflector comprises a reflecting part that is used for reflecting the laser emitted by the laser source, and a transmission part that is used for transmitting the light beams emitted by the supplementary light source. The light source device delicately adopts the laser of a laser device into a lamp and an LED light-emitting source of the projection system, successfully regulates the intensity distribution of the red color, the green color and the blue color, which are three primary colors, and improves the color saturation, contrast and other performances; thus the light source device has high practical value in the field of projection display.
Description
Technical field
The utility model relates to a kind of light supply apparatus and projection display equipment, particularly a kind of light supply apparatus and projection display equipment that is used for projection display system.
Background technology
The used ultrahigh pressure mercury lamp of existing optical projection system illumination, metal halide lamp, xenon lamp, Halogen lamp LED etc., the spectrum of these illuminating sources all is subjected to the restriction of luminescent substance and state thereof, presents continuously or the feature of band spectrum.Luminescent spectrum Fig. 1 with ultrahigh pressure mercury lamp is an example, the wave band broad of ruddiness as shown in the figure, and peak value is on the low side, and the red-green-blue intensity distributions is unsatisfactory, can't satisfy the requirement of white colour balance, therefore can't better meet the requirement of optical projection system illumination.Prior art adopts luminous flux and the brightness that the method for selection wide spectrum improves ruddiness usually at present, but adopts this kind method can correspondingly cause the reduction of color saturation.Simultaneously, prior art also is to be that cost increases red brightness to sacrifice contrast and color saturation on Video signal processing.So though these technology can be with softization of image color, the total quality of image has but descended.
In recent years, maturation along with led technology, also the someone attempts with light emitting diode as the optical projection system light source, the light emitting diode Projection Display is compared with traditional display technique, has bigger gamut range, and the light emitting diode live width is narrower, has high color saturation, can show that nature is true, gay colours.Lifetime of LED is long simultaneously, is a kind of environmental protection light source that does not have mercury.The light emitting diode Projection Display has become the significant development direction in demonstration field.
But, exist the total optical power deficiency on the low side that the effective luminous energy that utilizes of the system that can be projected is less, export because the optical extend of light emitting diode, has the led lighting technology now than big and the lower characteristic of brightness.
Although the luminous flux of light emitting diode and brightness are greatly improved, also do not reach the requirement of projector applications, the occasion that more particularly needs highlight illumination to use.In order to reach the requirement of projector applications, improve brightness of illumination, prior art is to lean on the permutation and combination of light emitting diode to improve luminous flux and brightness, but because light emitting diode is lambert's body illuminating source, if the optical extend of the LED source after the combination has exceeded the optical extend of optical projection system, this part light that exceeds then can not effectively be coupled into optical projection system.
The optical extend of light emitting diode is
E
Led＝n
2·π·sin
2(α)·S
Wherein n is the refractive index of luminescence medium; α is the emission half-angle of light source; S is the light-emitting area of light source.The emission half-angle of light emitting diode is 90 degree, and getting luminescence medium is air, and is 1 to do approximate treatment, 1mm with air refraction
2The light emitting diode (LED) light propagation is about 3.14mm
2Sr.
Be the optical projection system of 2.4 projection lens for the imager chip, the F number that use 0.79 inch, the optical extend of optical projection system is E
Projector=22mm
2Sr has only general 7mm
2The light of diode combinations array output can be coupled into optical projection system, the luminous flux sum that can make full use of only is a hundreds of lumen, greater than 7mm
2The light that sends of area can't be coupled into optical projection system at all, the way that improves luminous flux by the area that increases light emitting diode is impracticable.
In addition, traditional ultrahigh pressure mercury lamp can be at 6mm on the present market
2The luminous flux of the thousands of lumens of last generation, brightness is also high more than ten times than light emitting diode.Ultrahigh pressure mercury lamp is not a kind of light source of environmental protection owing to the use to heavy metal Hg.
In the LED source in the market, be the optical projection system of 2.4 projection lens for the imager chip, the F number that use 0.79 inch, light-emitting area is 7mm
2Certain light emitting diode, be subjected to the restriction of optical projection system optical extend, the maximum luminous power that can be coupled into the ruddiness of optical projection system is about 1.6W, the maximum luminous power of green glow is about 0.7W, the maximum luminous power of blue light is about 1.8W, and the ratio that ruddiness, green glow, blue light can be coupled into the maximum luminous power of optical projection system is 1: 0.44: 1.13.And colour temperature to be 6500K white require the luminous power ratio of ruddiness, green glow and the blue light of light emitting diode is 1: 0.87: 1.73.This shows that when light emitting diode ruddiness or blue light satisfied maximum luminous power, the luminous power of green glow all was not enough, green glow is the most not enough.Because the deficiency of green glow luminous power causes total optical power to be subjected to its restriction and on the low side, this is one of them not enough major reason of light emitting diode Projection Display brightness.Existing solution is to improve the duty ratio of time of green glow in whole white light to improve brightness, and this method does not make full use of the luminous power of ruddiness and blue light; Or adopting the luminous power that reduces ruddiness and blue light to obtain white balance, this method is again because the restriction of green glow luminous power has caused the luminous power of synthesize white light on the low side.
In a word, all there is difference on RGB luminous power ratio and white the demand in various Projection Display of the prior art with light source, thereby make color saturation, brightness and contrast that deficiency all be arranged, can't reach the resultant effect that improves color saturation, improves brightness, improves contrast and control cost simultaneously.
Summary of the invention
Therefore, task of the present utility model provide a kind of use LASER Light Source as a supplement light source improve the light supply apparatus that is used for optical projection system of brightness, contrast and the color saturation of Projection Display image.
Another task of the present utility model provides a kind of projection display equipment.
On the one hand, the utility model provides a kind of light supply apparatus that is used for Projection Display, it is characterized in that, comprise by additional light source and LASER Light Source, comprise also being used for the light and the synthetic a branch of catoptron of described LASER Light Source emitted laser that are replenished light emitted with described that described catoptron comprises that the reflecting part that is used to reflect described LASER Light Source emitted laser describedly sent the transmission part that the direct transmission of light beam is passed through by additional light source with making.
In the above-mentioned light supply apparatus, the transmission part surface of described catoptron is coated with to increase and is replenished the anti-reflection film that light source sends the light beam efficiency of transmission.
In the above-mentioned light supply apparatus, the surface, reflecting part of described catoptron is coated with the high-reflecting film that increases laser-bounce efficient.
Further, described catoptron is made by plate shaped or bar shaped transparent material, and described transparent material comprises glass, quartz, silicon chip and transparent plastic etc.
In the above-mentioned light supply apparatus, described reflecting part can be the plane, also can be designed to various shape as required, as paraboloidal, hyperboloid shape or sphere shape etc.
Can also be provided with beam alignment system between described LASER Light Source and the described catoptron.
Further, the described beam alignment system coupling mirror that can comprise optical fiber and be used for described laser coupled is advanced described optical fiber can also comprise extender lens and condenser lens etc.
In the above-mentioned light supply apparatus, describedly comprised various projection light sources, as LED lamp, ultrahigh pressure mercury lamp, metal halide lamp, xenon lamp and Halogen lamp LED etc. by additional light source.
On the other hand, the utility model also provides a kind of projection arrangement, and described projection arrangement uses the light source of above-mentioned light supply apparatus as Projection Display.
The utility model is introduced the bulb and the LED illuminating source of optical projection system dexterously with the laser of laser instrument, has proposed a kind of laser and other light sources and has mixed idea as the optical projection system lighting source.
Take technique scheme, can successfully remedy the red illumination defect of insufficient of bulbs such as ultrahigh pressure mercury lamp, metal halide lamp, xenon lamp, Halogen lamp LED, improved ruddiness brightness, adjusted the intensity distributions of red-green-blue, improved performances such as color saturation and contrast, had very high practical value in field of projection display.
Take technique scheme, can also utilize high brightness, the less laser of optical extend to replenish low-light level, LED source that optical extend is bigger, not only improved the luminous power of light emitting diode, improve the effective rate of utilization of light-source brightness and luminous energy significantly, and successfully solved the not enough defective that is not fully utilized or wastes with the ruddiness blue light of light emitting diode illuminated with green.In addition, the utility model has the characteristics of wide colour gamut, long-life, no mercury environmental protection simultaneously, and has both relatively inexpensive advantage, has very high practical value in field of projection display.
Description of drawings
Below, describe embodiment of the present utility model in conjunction with the accompanying drawings in detail, wherein:
Fig. 1 is the synoptic diagram of the luminescent spectrum of ultrahigh pressure mercury lamp;
Fig. 2 is the structural representation of catoptron;
Fig. 3 is to use the laser that is used for Projection Display of catoptron to replenish the light supply apparatus synoptic diagram of bulb;
Fig. 4 is with laser and the mixed spectrogram of ultrahigh pressure mercury lamp;
Fig. 5 is the light supply apparatus synoptic diagram that laser and light emitting diode mix;
Fig. 6 and Fig. 7 are that two kinds of three-primary color LED lamps swash the synoptic diagram of combiner as the Projection Display light source with RGB respectively;
Fig. 8 is the synoptic diagram that uses a kind of projector light path of the utility model light supply apparatus in monolithic DLP;
Fig. 9 is the synoptic diagram that uses a kind of projector light path of the utility model light supply apparatus in three DLP;
Figure 10 is the synoptic diagram that uses a kind of projector light path of the utility model light supply apparatus in three LCD.
Figure 11 is the synoptic diagram that uses a kind of projector light path of the utility model light supply apparatus in three LCOS;
Figure 12 is to use the three-primary color LED lamp of the utility model device and RGB to swash the synoptic diagram of combiner as a kind of projector light path of the monolithic DLP of Projection Display light source;
Figure 13 is to use the synoptic diagram of the another kind of projector light path of the three-primary color LED lamp of the utility model device and the monolithic DLP that one-wavelength laser closes Shu Zuowei Projection Display light source;
Figure 14 is to use the synoptic diagram of a kind of projector light path of the three-primary color LED lamp of the utility model device and three LCD that one-wavelength laser closes Shu Zuowei Projection Display light source;
Figure 15 is to use the three-primary color LED lamp of the utility model device and the sharp combiner synoptic diagram as a kind of projector light path of three LCOS of Projection Display light source.
Embodiment
Because the hot spot and the angle of divergence of laser are all very little, so the optical extend of laser is very little.Determine by following formula from the optical extend of the laser of optical fiber output:
E
laser＝π
2r
2sin
2θ
Wherein, r is the radius of fibre bundle, and sin θ is the numerical aperture of optical fiber.Fibre bundle closes Shu Ercheng by one or multifiber.
For example, be 0.35mm for the fibre bundle radius, numerical aperture is that the optical extend of 0.22 fibre bundle output laser only is 5.22 * 10
-2Mm
2Sr and light emitting diode are compared and are wanted little 2 more than the order of magnitude.Luminous flux under this optical extend can reach thousands of to lumens up to ten thousand.Therefore, for laser, very little optical extend just can obtain high luminous flux output.
In the hybrid light source of certain light emitting diode and laser, the optical extend of setting light emitting diode is E
Led, the optical extend of laser is E
Laser, total optical extend of hybrid light source is E
Total, total optical extend of hybrid light source is the summation of the optical extend and the laser optics propagation of light emitting diode, if E
Total=E
Led+ E
Laser≤ E
Projector, then the luminous power of this hybrid light source can all be coupled into optical projection system effectively at this moment.Because E
LaserAnd E
LedCompare much smaller, almost can ignore, therefore, can allow the overwhelming majority of optical extend of this hybrid light source distribute to light emitting diode, purpose is to utilize the luminous energy of the comparatively cheap light emitting diode of cost as much as possible, and few part of the optical extend of hybrid light source is distributed to laser, utilize laser under very little optical extend, just can obtain the characteristic of high brightness, thereby improved the total brightness of hybrid light source.
Fig. 2 is the structural representation of catoptron.This catoptron comprises the reflecting part 1 that is used to reflect described LASER Light Source emitted laser and makes and describedly sent the transmission part that the direct transmission of light beam is passed through by additional light source.Catoptron is removed outside the reflecting part 1, and upper surface 2 and lower surface 3 all are coated with to increase and are replenished the anti-reflection film that light source sends the light beam efficiency of transmission.1 surface, reflecting part of catoptron is coated with the high-reflecting film that increases laser-bounce efficient.This catoptron is made by plate shaped transparent material.Described transparent material can be glass, quartz, silicon chip and transparent plastic etc.Described reflecting part can be positioned at the central authorities of catoptron, also can perhaps change other positions into according to different needs at an end of catoptron.Described reflecting part can be the plane, also can be designed to various shape as required, as paraboloidal, hyperboloid shape or sphere shape etc.
The laser that is used for Projection Display shown in Figure 3 replenishes the light supply apparatus of bulb, comprises LASER Light Source 708, condenser lens 705, bulb 706 and catoptron 707; Wherein, LASER Light Source 708 is a red laser, the plate-like structure of catoptron 707 for making by glass, and the center section 704 of catoptron is the reflecting part, is coated with the high anti-high-reflecting film of red light wavelength, the remainder of catoptron 707 is the transmission part.Incide on the reflecting part 704 of catoptron 707 behind the red laser 708 emitted laser bundle line focus lens 705, through the output of reflection back; The light beam that described bulb 706 sends is directly transmission then, and pass described catoptron 707 backs and mix with described laser beam after 704 reflections of reflecting part, and the optical axis coincidence of two kinds of light in the mixed light, thereby the benefit of realization ruddiness is gone into.Condenser lens 705 can also use focus lens group or other can realize the optical component of focussing force.Can increase extender lens in the focus lens group, increase the degree of divergence of laser, because the effect that the laser versus lamp bubble of dispersing with certain angle of divergence mixes can be better, and laser beam reflection back then can make mixed effect the best with the light beam of bulb is coaxial.Described laser instrument 708 can be solid state laser, also can be semiconductor laser, fiber laser, gas laser etc.The red laser that described laser instrument 708 is selected for use selects 630nm better to the wavelength of 670nm.And the bulb here also can be ultrahigh pressure mercury lamp, metal halide lamp, Halogen lamp LED and xenon lamp.For the influence of the reflecting part that reduces catoptron to bulb 706 output beams, simultaneously again can be with the laser-bounce of whole incidents, condenser lens 705 should make the focus of laser be in the surface or near the position of the reflecting part 704 of catoptron 707 as far as possible, so just the area that the reflecting part of catoptron 707 might be made is littler, to reduce reflecting part stopping bulb output light.Mixed spectrum synoptic diagram as shown in Figure 4.Fig. 4 and Fig. 1 as seen, in the distribution of RGB three primary colours, the intensity of ruddiness obviously improves, and meets the needs of white luminous intensity distribution preferably.
In this light supply apparatus, the reflecting part of described catoptron 707 can be located in the middle of the catoptron, also can be located at edge or other suitable positions, the surface configuration of reflecting part can be plane as shown in Figure 2, also can be designed to various shape as required, as paraboloidal, hyperboloid shape or sphere shape etc., the material of catoptron 707 can use the transparent material preparation, and described transparent material comprises glass, quartz, silicon chip and transparent plastic etc.; The thickness of described catoptron 707 can be very little, its shape also can be made into strip, different shape such as discoid, those of ordinary skills are to be understood that, as long as the area of reflecting part is greater than the diameter of section of incoming laser beam, just can guarantee the reflection of laser beam, with this understanding, replenished the also only described catoptron transmission of some process of light that light source sends, another part then directly mixes with described laser beam without catoptron.
Fig. 5 mixes the light supply apparatus that carries out Projection Display as the LED source of being replenished light source with LASER Light Source.Wherein, LED source 901 is a white light emitting diode, and institute is luminous, and the light angle of divergence of lambert's bodily form formula is compressed by behind the light-beam forming unit 902, and the angle of divergence after the compression is the aperture angle of optical projection system, for example ± 12 °; The direct transmission of the emergent light of light-beam forming unit 902 is removed zone in addition, reflecting part and all is coated with broad-band transparence-increased film by catoptron 903 on catoptron 903 surfaces; LASER Light Source 907 is a green (light) laser, and institute's emitted laser enters optical fiber 905 by coupled lens group 906, and the emergent light of optical fiber 905 focuses on by focus lens group 904, and its angle of divergence is controlled in the aperture angle of optical projection system.Be coated with on the laser entrance face of catoptron 903 the laser wave reflecting part of anti-high-reflecting film of growing tall as catoptron.Adjust light path, make the focus of laser beam be in the reflecting part office of catoptron 903, laser reflects in the reflecting part office, and transfers divergent beams to by convergent beam; The light of white light emitting diode then after the penetration mirror and the green laser after the reflection mix, become the mixed lighting light source, realize the light emitting diode green glow is supplied.Certainly, in the above-mentioned light supply apparatus, should make the focal spot area of laser beam be less than or equal to the size of reflecting part, also can make the focus of laser beam be in the reflecting part the surface near, make the facula area of laser beam be less than or equal to the reflecting part area simultaneously in the reflecting part office, because if the facula area of laser beam is greater than the words of reflecting part, have the waste of luminous energy, if the facula area of same laser beam is too much less than the reflecting part, then preferably dwindle the reflecting part size, stop the light of light emitting diode less as far as possible, otherwise the maximum luminous power of light emitting diode is utilized; Simultaneously, the light-beam forming unit that is used to compress the LED source output light angle of divergence can use wedge shape rectangular pyramid or other optical device to realize.It will be appreciated by those skilled in the art that led light source can be white LED light source, also can be other monochromatic LED light sources, this is to determine according to the needs that reality is used.
Fig. 6 and Fig. 7 are that two kinds of three-primary color LED lamps swash the synoptic diagram of combiner as the Projection Display light source with RGB respectively.
Wherein, the Projection Display light source of Fig. 6 comprises red, green, blue LED lamp, red, green, blue laser, two dichroic mirrors and three catoptrons with structure shown in Figure 2, wherein, the ruddiness that red LED lamp 1001 is sent mixes with the red laser of red laser 1007 emissions, the green glow that green LED lamp 1002 is sent mixes with the green laser of green (light) laser 1008 emissions, the blue light that blue led lamp 1003 sends mixes with the blue laser of blue laser 1009 emissions, the hybrid mode of above-mentioned homochromy LED light and laser all adopts mode shown in Figure 5, simultaneously, after mixed ruddiness and mixed green glow close bundle by first dichroic mirror 1019, red green mixed light by second dichroic mirror 1020 and mixed blue combiner, obtains the required white light of Projection Display again.In addition, the position of red-light LED and blue-ray LED also can exchange each other, the red laser of mend and the position of blue laser be switch correspondingly also, also will change the corresponding plated film of first dichroic mirror and second dichroic mirror simultaneously, and this is understandable to those skilled in the art.
Projection Display among Fig. 7 uses color-combination prism (X-cube) 1122 to come two dichroic mirrors in the alternate figures 6 to carry out the synthetic of three primary colours light with light source, and is identical with Fig. 5 with the light beam hybrid mode of color, can obtain the required white light of Projection Display equally.In addition, identical with Fig. 6, the light path of ruddiness and blue light can replace each other, but the position of green glow is necessary for the position of directly passing through without reflection from the centre position of X-cube color-combination prism 1122.
The synthesize white light of Fig. 6 and Fig. 7 can be used for the projection light source of monolithic DLP (digital light processing), Monolithic LC OS and Monolithic LC D, and owing to light source is all provided by LED lamp and laser instrument, therefore the method for automatically controlled sequential can be adopted, thereby the colour wheel that uses in the conventional art can be removed.In addition, according to concrete needs, can selectivity mend into a certain or certain varicolored light.
Fig. 8-Figure 15 has provided the projector light line structure of several use the utility model light supply apparatuses.
Fig. 8 is the embodiment that uses a kind of projector light path of the utility model light supply apparatus in monolithic DLP ray machine.Comprise as ultrahigh pressure mercury lamp 1209, LASER Light Source 1208, extender lens 1217, condenser lens 1218, catoptron 1207, optical wand 1210, focus lens group 1211, colour wheel 1212, relay lens group 1213, Digital Micromirror Device DMD1214 and the projection lens set 1215 and the screen 1216 that are replenished light source, wherein, catoptron 1207 structures are same as shown in Figure 2.The white light beam vertical incidence catoptron 1207 of ultrahigh pressure mercury lamp 1209 emissions and direct transmission are gone out, laser instrument 1208 is the solid state laser of output 635nm red laser, after inciding condenser lens 1218 behind the red laser process extender lens 1217 expansion bundles, reenter on the reflecting part that is mapped to catoptron 1207, and its focus is in the reflecting part office of catoptron 1207, through catoptron 1207 reflection backs and the coaxial output of the described same direction of ultrahigh pressure mercury lamp 1209 emitted light beams, be mixed into the light source of Projection Display.Extender lens 1217 has increased laser through the degree of divergence behind the condenser lens 1218, and laser is more approaching with the degree of divergence that is replenished light source, can strengthen mixed effect.If but the hot spot of laser instrument itself just can satisfy the mixing requirement, then needn't add extender lens.The reflecting part of catoptron 1207 is coated with the high anti-high-reflecting film of wavelength 635nm laser, partly is coated with the broad-band transparence-increased film of visible light in the transmission of catoptron 1207.Mixed light beam carries out shimming by optical wand 1210 to it in light path handles, by described focus lens group 1211 it is assembled then, enter colour wheel 1212 again, the light of green glow, blue light and three kinds of colors of ruddiness is exported in regular turn according to a definite sequence of colour wheel setting, then by shining Digital Micromirror Device (Digital Micro-mirror Device behind relay lens group 1213 image rotations, be called for short DMD) on 1214, handle light beam later through after the projection lens set 1215 by DMD1214, shine imaging on the screen 1216 at last.LASER Light Source 1208 emission red lasers in the present embodiment are in order to improve the ruddiness brightness in the Projection Display, to adjust the intensity distributions of red-green-blue, thereby have improved the color saturation and the contrast of image.
Fig. 9 is the embodiment that uses a kind of projector light path of the utility model light supply apparatus in three DLP ray machines.Comprise as the xenon lamp 1309 that is replenished light source, LASER Light Source 1308, coupled lens 1318, optical fiber 1319, condenser lens 1311, catoptron 1307, optical wand 1310, focus lens group 1312, plane mirror 1320, inner full-reflection prism (Total Interface Reflection, be called for short the TIR prism) 1321, color separation is color-combination prism (color splitting/recombiningprism) 1322 again, red, green, blue DMD1323,1324 and 1325, and projection lens set 1315, wherein, laser mixes the catoptron that still uses structure shown in Figure 2 with xenon lamp.But the thickness of catoptron 1307 and width only are 2 millimeters.Because width is less, the light of xenon lamp 1309 emissions has only above part is mapped to.Laser light source 1308 is the semiconductor laser of emission 635nm red laser.Laser is at first gone into optical fiber 1319 by coupled lens 1318 is laggard, from optical fiber 1319 emitting laser bundles again by condenser lens 1311 incidents and focus on the reflecting part of catoptron 1307, through reflection back outgoing, because the width of catoptron 1307 is very little, also mix with described laser beam after the transmission as being incided on the described catoptron 1307 by the light part of xenon lamp 1309 emissions of additional light source, another part then directly mixes with described laser beam.Be coated with high-reflecting film in the reflecting part of catoptron 1307, partly be coated with the broad-band transparence-increased film of visible light in the transmission of catoptron 1307 wavelength 635nm laser.After mixed light beam carries out shimming by optical wand 1310, assemble by focus lens group 1312 again, then through plane mirror 1320 reflections, enter inner full-reflection TIR prism (Total InterfaceReflection, be called for short the TIR prism) 1321, the effect of TIR prism 1321 is to realize that incident light separates with emergent light, does not disturb mutually, make the incident light total reflection, emergent light sees through.TIR prism 1321 enters color separation color-combination prism 1322 again with the reflection of incident mixed light, color separation color-combination prism 1322 again makes mixed light be divided into indigo plant, green, red trichromatism in proper order, and incide respectively on indigo plant, green, the red DMD1325,1324 and 1323, the first red green look that closes of three-beam afterwards, blue light closes look with red green mixed light again, after exporting by TIR prism 1321 as emergent light once more at last, incide projection lens set 1315 back imagings.Wherein, TIR prism 1321 and color separation color-combination prism 1322 more all are optical device well known to those skilled in the art, and its structure can referenced patent number be first page second section of the US Patent specification of US6863401B2.
It should be understood by one skilled in the art that illuminator as Projection Display except xenon lamp, can also be LED lamp (comprising led array), ultrahigh pressure mercury lamp, metal halide lamp, Halogen lamp LED etc.
Figure 10 is the embodiment that uses a kind of projector light path of the utility model light supply apparatus in three liquid crystal light valves.Wherein, replenished the light of light source output and realize by catoptron shown in Figure 2, but the reflecting part is arranged on an end of catoptron with mixing still of laser.LASER Light Source 1408 is the solid state laser of emission 635nm red laser, laser is focused on the reflecting part of catoptron 1407 after expanding bundle through first focus lens group 1411, through reflection back outgoing, adopt ultrahigh pressure mercury lamp 1409 as the illuminator that is replenished light source, adjust the focal plane F of the ultrahigh pressure mercury lamp 1409 of output convergent beam, the focus of laser beam is also dropped on the F of focal plane, and the focal length of the focus of laser beam and ultrahigh pressure mercury lamp 1409 output light is approaching as much as possible, but the focus of ultrahigh pressure mercury lamp 1409 output light is not on catoptron, more can not be positioned on the reflecting part of catoptron 1407, two-beam is realized mixing through the catoptron 1407 equidirectional outputs in back.Wherein first focus lens group can comprise extender lens.Be coated with high-reflecting film to wavelength 635nm laser in the reflecting part of catoptron 1407, here since the light of ultrahigh pressure mercury lamp 1409 by catoptron 1407, so the transmission of catoptron 1407 part also needn't be coated with the broad-band transparence-increased film of visible light again.Mixed light beam becomes directional light or quasi-parallel light after through second focus lens group 1417, carry out shimming through first fly's-eye lens 1426 again, order is through first plane mirror 1427, second fly's-eye lens 1436, polarization spectroscope PBS array 1434 and the 3rd condenser lens group 1451 then, wherein, the effect of first plane mirror 1427 is with the light total reflection, described second fly's-eye lens 1436 has remained the effect of shimming, and described PBS array 1434 is converted to polarized light with the nature mixed light; On first dichroic mirror 1428, mixed polarized light is separated into blue light and red green mixed light by the polarized light of the 3rd condenser lens group 1451 outgoing, described blue light order is through second plane mirror 1440, enter color-combination prism 1430 behind first field lens 1441 and first liquid crystal light valve 1431, described red green mixed light further is separated into green glow and ruddiness on second dichroic mirror 1438, described green glow enters color-combination prism 1430 after through second field lens 1442 and second liquid crystal board 1432, described ruddiness order is through first relay lens 1429, the 3rd plane mirror 1450, second relay lens 1439, Siping City's face catoptron 1420, the 3rd field lens 1443, and the 3rd enter color-combination prism 1430 behind the liquid crystal board 1433, like this, the RGB three-beam closes light again and projects on the screen through projection lens set 1415 in described color-combination prism 1430, realize the demonstration of image.The effect of field lens is the Surface Vertical that makes light and LCD liquid crystal board.Wherein, because blue light is identical with the light path of green glow, and the light path of ruddiness is longer, and the effect of relay lens is to make ruddiness transfer effect with the identical light path of blue green light to.
The embodiment of Figure 10 is that first light beam and red laser beam mixing with ultrahigh pressure mercury lamp 1409 also enters in the optical system of projector as light source behind the shimming, those of ordinary skills are to be understood that, also can earlier ultrahigh pressure mercury lamp 1409 emitted light beams be introduced the optical system of projector as light source, then in follow-up structure, on the light path between second dichroic mirror, 1438 to the 3rd liquid crystal boards 1433, re-use catoptron 1407 red laser is incorporated in the optical system of projector.
Figure 11 is to use a kind of synoptic diagram with projector light path of three LCOS (LiquidCrystal on Silicon) of the utility model light supply apparatus.Comprise as the ultrahigh pressure mercury lamp 1509 that is replenished light source, the LASER Light Source 1508 of emission 635nm ruddiness, first focus lens group 1511, catoptron 1507 with structure shown in Figure 2, second focus lens group 1517, first and second fly's-eye lenses 1526 and 1536, first plane mirror 1527, PBS array 1534, the 3rd condenser lens group 1521, first and second dichroic mirrors 1540 and 1560, first and second relay lenss 1529 and 1539, three LCOS1541,1551 and 1561, three PBS1542,1552 and 1562, color-combination prism 1530, and projection lens set 1515, wherein, the hybrid mode light channel structure of the Projection Display light source first half among Figure 11 is identical with Figure 10, thereafter light path adopts three traditional LCOS schemes, be in the latter half light path, PBS array 1534 is converted to the p polarized light with natural light, through inciding after the 3rd condenser lens group 1521 on first dichroic mirror 1540, first dichroic mirror 1540 is separated into ruddiness and bluish-green mixed light with incident p polarized light, described ruddiness order is through first relay lens 1529, second plane mirror 1550, second relay lens 1539, incide among the PBS1562 behind first field lens 1563, after the p polarized red beam reflection of the one PBS1562 with incident, ruddiness is the s polarization on ruddiness LCOS1561 surface through modulation conversion, and the ruddiness transmission of s polarization enters color-combination prism 1530 after passing a PBS1562; Described bluish-green mixed light is separated into blue light and green glow after through second dichroic mirror 1560, the blue light of described p polarization is earlier through second field lens 1543, be the s polarization through the 2nd PBS1542 reflection and on blue light LCOS1541 surface through modulation conversion again, and transmission enter color-combination prism 1530 after passing the 2nd PBS1542; Similar with blue light, the green glow of described p polarization is earlier through the 3rd field lens 1553, again through the reflection of the 3rd PBS1552 and on green glow LCOS1551 surface through being modulated to the s polarization, and transmission enters color-combination prism 1530 after passing the 3rd PBS1552, through color-combination prism 1530 RGB three primary colours light is closed the bundle back again and project on the screen, realize the Projection Display of image by projection lens set 1515.Wherein, because blue light is identical with the light path of green glow, and the light path of ruddiness is longer, and the effect of relay lens is to make ruddiness have effect with the identical light path of blue green light.
Figure 12 is to use the three-primary color LED lamp of the utility model device and RGB to swash the synoptic diagram of combiner as a kind of projector light path of the monolithic DLP of Projection Display light source.LED and laser to close light identical with light channel structure shown in Figure 7 as the part of projection light source, the first line focus lens combination 1623 of mixed light beam converges to carries out shimming in the optical wand 1624, again via inciding in the TIR prism 1627 behind relay lens group 1625 image rotations, after handling on the DMD1626, be reflected, shine projection lens group 1628 from TIR prism 1627 again, at last imaging on screen 1629.Owing to adopt the method for automatically controlled sequential, removed the colour wheel in the conventional one-piece DLP light path in this light path, after the laser mix supplement, the brightness of the redgreenblue of optical projection system all was enhanced than before.In addition, according to the difference of white light luminous intensity distribution ratio, the RGB laser instrument can be selected the different laser instrument of power, especially at the situation of green glow deficiency, can select to replenish the bigger green laser of power.
Figure 13 is to use the synoptic diagram of the another kind of projector light path of the three-primary color LED lamp of the utility model device and the monolithic DLP that one-wavelength laser closes Shu Zuowei Projection Display light source.LED and laser to close light basic identical with Fig. 6 as the part of projection light source, just only adopt green (light) laser to replenish green mixed light here, red blue two-way mend into.Mixed light beam carries out shimming through focus lens group 1723 post-concentrations earlier in optical wand 1724, again via inciding in the TIR prism 1727 behind relay lens group 1725 image rotations, after handling on the DMD1726, be reflected, shine projection lens group 1728 from TIR prism 1727 again, at last imaging on screen 1729.In the above-mentioned Projection Display light source, imager chip, the F number that uses 0.79 inch under colour temperature 6500K is the optical projection system of 2.4 projection lens, and described LED lamp all adopts led array, and light-emitting area is 7mm
2, the luminous power of red, green and blue LED array is not about ruddiness 0.8W, green glow 0.7W, blue light 1.4W respectively before adding green (light) laser, because green glow has reached maximum luminous power, so limited the luminous power of ruddiness and blue light.Adopt above-mentioned Projection Display light source, add luminous power and be the laser of 532nm green (light) laser of 0.65W after, the luminous power of RGB is brought up to the about 1.2W of ruddiness, the about 1.1W of green glow, the about 1.8W of blue light respectively.The brightness ratio of the light supply apparatus output white light behind the adding green (light) laser had before improved about 50%.This method has improved the brightness of green glow greatly, and the color saturation of green glow, thereby has improved the overall brightness of white light.
Figure 14 is to use the synoptic diagram of a kind of projector light path of the three-primary color LED of the utility model device and three LCD that one-wavelength laser closes Shu Zuowei Projection Display light source.Green glow led array 1801 uses catoptrons 1803 to carry out light beam by mode shown in Figure 5 and green (light) laser 1804 to mix among the figure, red-light LED array 1811 and blue-ray LED array 1821 then no longer replenish with laser, and the mixed light of green glow is in proper order through entering color-combination prism 1838 behind collimation lens 1831, polaroid 1832, condenser lens 1833, optical wand 1834 and relay lens group 1835 and the green glow LCD liquid crystal light valve 1808; And ruddiness and blue LED lamp 1811 and 1821 through each self-corresponding collimation lens 1813 and 1823, polaroid 1814 and 1824, condenser lens 1815 and 1825, optical wand 1816 and 1826, relay lens group 1817 and 1827 and LCD liquid crystal light valve 1818 and 1828 after enter color-combination prism 1838, by color-combination prism 1838 RGB three primary colours light is closed light again, by projection lens set 1839 imaging on screen 1840.Wherein, in order to improve the utilization ratio of light beam, the light-beam forming unit that is used to compress the LED lamp output beam angle of divergence can use the wedge shape rectangular pyramid, like this, can also utilize polaroid that S light is passed through, P light reflects back, and is changed once more for natural light and with follow-up output light in led array surface and wedge shape rectangular pyramid and exports, and realizes that the part of P light is utilized once more.
Figure 15 is to use the three-primary color LED lamp of the utility model device and the sharp combiner synoptic diagram as a kind of projector light path of three LCOS of Projection Display light source.Figure 15 and Figure 14 are basic identical, just hybrid light source is that bluish-green two laser instruments are mixed into respectively in the bluish-green led array, ruddiness is then all provided by the red-light LED lamp, and use PBS and LCOS combination replacement the LCD liquid crystal light valve among Figure 14, about combination and the use-pattern of PBS and LCOS is described in detail in Figure 11, just repeat no more here.
It is emphasized that at last, among above-mentioned Fig. 6,7,9,10,11,12,13,14,15, in order to realize that image shows, it is identical or make light path reach the condition of the identical effect of light path also to require the light path of RGB three tunnel should satisfy light path, and this is known to those skilled in the art.
Certainly, according to the needs in the practical application, light supply apparatus of the present utility model can also mix the laser versus lamp bubble of other wavelength and color with the light that LED sends mutually.It should be noted that embodiment structure and the technical scheme only in above each accompanying drawing at last in order to light supply apparatus of the present utility model to be described, but unrestricted.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is made amendment or is equal to replacement, the spirit and scope that do not break away from technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (12)
1. light supply apparatus that is used for Projection Display, it is characterized in that, comprise by additional light source and LASER Light Source, comprise also being used for the light and the synthetic a branch of catoptron of described LASER Light Source emitted laser that are replenished light emitted with described that described catoptron comprises that the reflecting part that is used to reflect described LASER Light Source emitted laser describedly sent the transmission part that the direct transmission of light beam is passed through by additional light source with making.
2. light supply apparatus according to claim 1 is characterized in that described catoptron is made by transparent material.
3. light supply apparatus according to claim 2 is characterized in that described transparent material comprises glass, quartz, silicon chip and transparent plastic.
4. light supply apparatus according to claim 2 is characterized in that, the surface, reflecting part of described catoptron is coated with the high-reflecting film that increases laser-bounce efficient.
5. light supply apparatus according to claim 2 is characterized in that, the transmission part surface of described catoptron is coated with to increase and is replenished the anti-reflection film that light source sends the light beam efficiency of transmission.
6. light supply apparatus according to claim 1 is characterized in that described reflecting part is shaped as plane, parabola, hyperboloid or sphere.
7. light supply apparatus according to claim 1 is characterized in that, is provided with beam alignment system between described LASER Light Source and the described catoptron.
8. light supply apparatus according to claim 7 is characterized in that, the coupling mirror that described beam alignment system comprises optical fiber and is used for described laser coupled is advanced described optical fiber.
9. light supply apparatus according to claim 7 is characterized in that described beam alignment system also comprises condenser lens.
10. light supply apparatus according to claim 9 is characterized in that described beam alignment system also comprises extender lens.
11. light supply apparatus according to claim 1 is characterized in that, described is LED lamp, ultrahigh pressure mercury lamp, metal halid lamp, xenon lamp, Halogen lamp LED by additional light source.
12. a projector is characterized in that, described projector uses aforesaid right to require the light source of each described light supply apparatus of 1-11 as projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203057454U CN201134006Y (en) | 2007-11-08 | 2007-11-16 | Light source for projection system and projection display device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710177035 | 2007-11-08 | ||
| CN200710177035.2 | 2007-11-08 | ||
| CNU2007203057454U CN201134006Y (en) | 2007-11-08 | 2007-11-16 | Light source for projection system and projection display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134006Y true CN201134006Y (en) | 2008-10-15 |
Family
ID=39924140
Family Applications (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201950365U2007201950365U Expired - Fee Related CN201097088Y (en) | 2007-11-08 | 2007-11-14 | A light source device for projection system and projection display device |
| CN2007101878583A Expired - Fee Related CN101430492B (en) | 2007-11-08 | 2007-11-14 | Light source for projection system and projection display device |
| CNA2007101872483A Pending CN101430491A (en) | 2007-11-08 | 2007-11-16 | Light source for projection system and projection display device |
| CNU2007203057454U Expired - Fee Related CN201134006Y (en) | 2007-11-08 | 2007-11-16 | Light source for projection system and projection display device |
| CNA2007101937045A Pending CN101430493A (en) | 2007-11-08 | 2007-11-23 | Light source for projection system and projection display device |
| CNU2007203052268U Expired - Fee Related CN201104278Y (en) | 2007-11-08 | 2007-11-23 | Light source for projection system and projection display device |
| CNU2007203052978U Expired - Fee Related CN201138418Y (en) | 2007-11-08 | 2007-11-27 | Light source apparatus for projection display and projection display apparatus |
| CNA2007101937810A Pending CN101430494A (en) | 2007-11-08 | 2007-11-27 | Light source apparatus for projection display and projection display apparatus |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201950365U2007201950365U Expired - Fee Related CN201097088Y (en) | 2007-11-08 | 2007-11-14 | A light source device for projection system and projection display device |
| CN2007101878583A Expired - Fee Related CN101430492B (en) | 2007-11-08 | 2007-11-14 | Light source for projection system and projection display device |
| CNA2007101872483A Pending CN101430491A (en) | 2007-11-08 | 2007-11-16 | Light source for projection system and projection display device |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101937045A Pending CN101430493A (en) | 2007-11-08 | 2007-11-23 | Light source for projection system and projection display device |
| CNU2007203052268U Expired - Fee Related CN201104278Y (en) | 2007-11-08 | 2007-11-23 | Light source for projection system and projection display device |
| CNU2007203052978U Expired - Fee Related CN201138418Y (en) | 2007-11-08 | 2007-11-27 | Light source apparatus for projection display and projection display apparatus |
| CNA2007101937810A Pending CN101430494A (en) | 2007-11-08 | 2007-11-27 | Light source apparatus for projection display and projection display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (8) | CN201097088Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840143B (en) * | 2009-03-19 | 2011-08-24 | 杭州朗奥光电有限公司 | Multi-light source illuminator for projectors |
| CN102884478A (en) * | 2010-05-21 | 2013-01-16 | Nec显示器解决方案株式会社 | Lighting optical system and projector using same |
| WO2013029422A1 (en) * | 2011-08-29 | 2013-03-07 | 深圳市绎立锐光科技开发有限公司 | Light source, light combining device, and projection device with the light source |
| WO2018170987A1 (en) * | 2017-03-22 | 2018-09-27 | 深圳市光峰光电技术有限公司 | Projection system |
| WO2018201682A1 (en) * | 2017-05-02 | 2018-11-08 | 深圳市光峰光电技术有限公司 | Projection system, projection method and image data processing method |
| CN109324465A (en) * | 2017-07-31 | 2019-02-12 | 深圳光峰科技股份有限公司 | Show equipment and display methods |
| CN110018606A (en) * | 2018-01-09 | 2019-07-16 | 卡西欧计算机株式会社 | Light supply apparatus and projection arrangement |
| CN114326274A (en) * | 2020-09-27 | 2022-04-12 | 成都极米科技股份有限公司 | Light combination light source device and projection system |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201097088Y (en) * | 2007-11-08 | 2008-08-06 | 北京中视中科光电技术有限公司 | A light source device for projection system and projection display device |
| US8502926B2 (en) * | 2009-09-30 | 2013-08-06 | Apple Inc. | Display system having coherent and incoherent light sources |
| US8936368B2 (en) | 2010-01-29 | 2015-01-20 | Nec Display Solutions, Ltd. | Illumination optical system and projector using the same |
| CN104614924B (en) * | 2010-01-29 | 2016-10-05 | Nec显示器解决方案株式会社 | Projector |
| WO2011092842A1 (en) | 2010-01-29 | 2011-08-04 | Ｎｅｃディスプレイソリューションズ株式会社 | Illuminating optical system and projector using same |
| TWI454824B (en) * | 2010-05-07 | 2014-10-01 | Qisda Corp | Projector apparatus utilizing wedge lens |
| CN102330888A (en) * | 2010-07-12 | 2012-01-25 | 红蝶科技(深圳)有限公司 | Light mixing type monochromatic light source with function of fluorescent powder excitation and projection optical engine using same |
| DE102010039683A1 (en) * | 2010-08-24 | 2012-03-01 | Osram Ag | Projection apparatus and method for operating a projection apparatus |
| CN106292149A (en) * | 2010-11-24 | 2017-01-04 | 青岛海信电器股份有限公司 | Light source of projector and scialyscope |
| CN102073139A (en) * | 2010-11-29 | 2011-05-25 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) lighting source and projector |
| CN102147289A (en) * | 2011-01-14 | 2011-08-10 | 上海理工大学 | Illumination system for portable spectrograph |
| US8740406B2 (en) | 2011-08-25 | 2014-06-03 | Appotronics Corporation Limited | Method and apparatus for solid state illumination |
| CN104932187A (en) * | 2011-11-10 | 2015-09-23 | 深圳市光峰光电技术有限公司 | Light source system, illumination device and projection device |
| CN102645829B (en) * | 2011-12-02 | 2014-11-05 | 深圳市光峰光电技术有限公司 | Light source system and projecting device |
| CN104977790B (en) * | 2011-12-08 | 2017-03-29 | 深圳市光峰光电技术有限公司 | Light-source system and projection arrangement |
| CN202432315U (en) * | 2012-01-01 | 2012-09-12 | 深圳市光峰光电技术有限公司 | Semi-conductor light source and light-emitting device |
| CN102645833A (en) * | 2012-05-03 | 2012-08-22 | 山东大学 | Wide-gamut composite light source projection display device and wide-gamut composite light source projection display method |
| WO2014020728A1 (en) * | 2012-08-01 | 2014-02-06 | Ｎｅｃディスプレイソリューションズ株式会社 | Illumination optical system and projection display device |
| CN103399453A (en) * | 2013-08-23 | 2013-11-20 | 中国华录集团有限公司 | Light source device of projector, capable of enhancing brightness |
| CN103543583A (en) * | 2013-10-14 | 2014-01-29 | 苏州佳世达光电有限公司 | Projector |
| CN104683775B (en) * | 2013-11-28 | 2017-03-01 | 台达电子工业股份有限公司 | Blue light synthetic method and system |
| CN105204279B (en) * | 2014-06-23 | 2017-07-11 | 深圳市绎立锐光科技开发有限公司 | Light-source system and projector equipment |
| CN105652572B (en) * | 2014-06-23 | 2017-07-28 | 深圳市绎立锐光科技开发有限公司 | Light-source system and projector equipment |
| CN107703705A (en) * | 2016-08-09 | 2018-02-16 | 深圳市光峰光电技术有限公司 | Light-source system and projector equipment |
| CN106402719A (en) * | 2016-08-30 | 2017-02-15 | 宁波凯盛电器有限公司 | Candle lamp |
| CN106526874B (en) * | 2016-12-09 | 2023-07-07 | 深圳开立生物医疗科技股份有限公司 | Optical coupling device, light source system and endoscope system |
| CN108303842B (en) | 2017-01-12 | 2020-09-15 | 深圳光峰科技股份有限公司 | Projection display system |
| JP7203758B2 (en) * | 2017-05-12 | 2023-01-13 | エムティティ イノベーション インコーポレイテッド | Image projection system and image projection method for projecting light to form an image |
| CN110398877B (en) * | 2018-04-25 | 2021-11-02 | 台达电子工业股份有限公司 | Projection system and adjusting method thereof |
| CN110554403A (en) * | 2018-05-31 | 2019-12-10 | 成都理想境界科技有限公司 | Laser scanning imaging device |
| CN109541878A (en) * | 2018-12-07 | 2019-03-29 | 合肥翰视激光科技有限公司 | A kind of transmission of projection light source and light mixing, even photosystem |
| US11057595B2 (en) * | 2019-02-08 | 2021-07-06 | Texas Instruments Incorporated | Projection on multiple planes using a single projection unit |
| CN110262174A (en) * | 2019-06-14 | 2019-09-20 | 山西莱柏莱特电子科技有限公司 | A kind of laser projection dissipation spot light path device widened based on wavestrip |
| CN110824821A (en) * | 2019-11-21 | 2020-02-21 | 四川长虹电器股份有限公司 | Hybrid light source coupling system based on laser light source and LED light source |
| CN116088256A (en) * | 2021-08-02 | 2023-05-09 | 合肥全色光显科技有限公司 | Projection system |
| CN116339055A (en) * | 2021-08-02 | 2023-06-27 | 合肥全色光显科技有限公司 | Projection system |
| CN114596792A (en) * | 2022-02-24 | 2022-06-07 | 武汉精立电子技术有限公司 | Method and equipment for attaching micro display |
| CN115654430A (en) * | 2022-11-07 | 2023-01-31 | 深圳市安华光电技术有限公司 | Lighting device adopting LED and laser mixed light source |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6698892B2 (en) * | 2001-06-08 | 2004-03-02 | Infocus Corporation | Achieving color balance in image projection systems by injecting compensating light in a controlled amount |
| JP2004226613A (en) * | 2003-01-22 | 2004-08-12 | Sanyo Electric Co Ltd | Illuminator and projection type video display device |
| CN201097088Y (en) * | 2007-11-08 | 2008-08-06 | 北京中视中科光电技术有限公司 | A light source device for projection system and projection display device |
-
2007
- 2007-11-14 CN CNU2007201950365U2007201950365U patent/CN201097088Y/en not_active Expired - Fee Related
- 2007-11-14 CN CN2007101878583A patent/CN101430492B/en not_active Expired - Fee Related
- 2007-11-16 CN CNA2007101872483A patent/CN101430491A/en active Pending
- 2007-11-16 CN CNU2007203057454U patent/CN201134006Y/en not_active Expired - Fee Related
- 2007-11-23 CN CNA2007101937045A patent/CN101430493A/en active Pending
- 2007-11-23 CN CNU2007203052268U patent/CN201104278Y/en not_active Expired - Fee Related
- 2007-11-27 CN CNU2007203052978U patent/CN201138418Y/en not_active Expired - Fee Related
- 2007-11-27 CN CNA2007101937810A patent/CN101430494A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840143B (en) * | 2009-03-19 | 2011-08-24 | 杭州朗奥光电有限公司 | Multi-light source illuminator for projectors |
| CN102884478A (en) * | 2010-05-21 | 2013-01-16 | Nec显示器解决方案株式会社 | Lighting optical system and projector using same |
| US9039187B2 (en) | 2010-05-21 | 2015-05-26 | Nec Display Solutions, Ltd. | Illumination optical system and a projector using the same |
| WO2013029422A1 (en) * | 2011-08-29 | 2013-03-07 | 深圳市绎立锐光科技开发有限公司 | Light source, light combining device, and projection device with the light source |
| EP2752701A4 (en) * | 2011-08-29 | 2015-07-15 | Appotronics China Corp | Light source, light combining device, and projection device with the light source |
| US9891439B2 (en) | 2011-08-29 | 2018-02-13 | Appotronics Corporation Limited | Light source, light combining device, and projection device with the light source |
| CN108628069B (en) * | 2017-03-22 | 2020-09-08 | 深圳光峰科技股份有限公司 | Projection system |
| CN108628069A (en) * | 2017-03-22 | 2018-10-09 | 深圳市光峰光电技术有限公司 | Optical projection system |
| WO2018170987A1 (en) * | 2017-03-22 | 2018-09-27 | 深圳市光峰光电技术有限公司 | Projection system |
| WO2018201682A1 (en) * | 2017-05-02 | 2018-11-08 | 深圳市光峰光电技术有限公司 | Projection system, projection method and image data processing method |
| CN108810497A (en) * | 2017-05-02 | 2018-11-13 | 深圳市光峰光电技术有限公司 | Optical projection system, projecting method and image processing method |
| CN108810497B (en) * | 2017-05-02 | 2021-07-23 | 深圳光峰科技股份有限公司 | Projection system, projection method, and image data processing method |
| CN109324465A (en) * | 2017-07-31 | 2019-02-12 | 深圳光峰科技股份有限公司 | Show equipment and display methods |
| CN110018606A (en) * | 2018-01-09 | 2019-07-16 | 卡西欧计算机株式会社 | Light supply apparatus and projection arrangement |
| CN110018606B (en) * | 2018-01-09 | 2021-05-14 | 卡西欧计算机株式会社 | Light source device and projection device |
| CN114326274A (en) * | 2020-09-27 | 2022-04-12 | 成都极米科技股份有限公司 | Light combination light source device and projection system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101430494A (en) | 2009-05-13 |
| CN101430493A (en) | 2009-05-13 |
| CN201097088Y (en) | 2008-08-06 |
| CN101430491A (en) | 2009-05-13 |
| CN201138418Y (en) | 2008-10-22 |
| CN101430492B (en) | 2011-05-18 |
| CN101430492A (en) | 2009-05-13 |
| CN201104278Y (en) | 2008-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201134006Y (en) | Light source for projection system and projection display device | |
| JP5456688B2 (en) | Light source device and projection display device used in projection system | |
| US7101049B2 (en) | Projector optics and projector with light source of LEDs | |
| US8317331B2 (en) | Recycling system and method for increasing brightness using light pipes with one or more light sources, and a projector incorporating the same | |
| CN101248384B (en) | Etendue efficient combination of multiple light sources | |
| JP5875865B2 (en) | Device for recycling light to increase the brightness of light output, and LED projector incorporating the device | |
| CN100565326C (en) | Image projection system with colour balance of improvement | |
| JP2010520498A (en) | Color synthesizer for solid-state light sources | |
| KR20110091526A (en) | High intensity image projector using sectional mirror | |
| CN219016710U (en) | Micro light engine and near-to-eye display device | |
| US8085471B2 (en) | Light integrating device for an illumination system and illumination system using the same | |
| CN102331656A (en) | Digital light processing projector | |
| CN211698569U (en) | Illumination system and projection device | |
| KR102186825B1 (en) | Optical system and image projection device including the same | |
| WO2020199670A1 (en) | Light source system and projection apparatus | |
| CN218413186U (en) | Projection system | |
| JP2002090885A (en) | Illuminator, projection-type display device using the illuminator and method for controlling illuminating light | |
| CN101749566A (en) | Semiconductor lighting device and micro projection optical engine using same | |
| CN218413196U (en) | Light source device and projection equipment | |
| CN218957014U (en) | Laser light source and laser projection device | |
| CN219039558U (en) | Light source device and projection equipment | |
| KR100634001B1 (en) | Prism with light emitting diode | |
| CN115729023A (en) | Illumination system and projection apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |