CN101093066A - Illuminating apparatus of light emitting diode - Google Patents
Illuminating apparatus of light emitting diode Download PDFInfo
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- CN101093066A CN101093066A CNA2007101379265A CN200710137926A CN101093066A CN 101093066 A CN101093066 A CN 101093066A CN A2007101379265 A CNA2007101379265 A CN A2007101379265A CN 200710137926 A CN200710137926 A CN 200710137926A CN 101093066 A CN101093066 A CN 101093066A
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Abstract
This invention provides a LED illumination device used in projectors, which takes three spectrums of red, green and blue monochromatic irradiance diode arrays to form a diode panel emitting light from three sides as the light source of the projector, then uses a synthesized prism to merge them to a beam generated by the three LED panels and outputs images with a lens component, which not only can solve the problem that a super high voltage Hg lamp used in a traditional projector generates thermo-radiation and harms the machine and other optical elements but also can simplify the complicated optical system.
Description
The application is to be on October 22nd, 2003 applying date, and application number is 200310102865.0 divides an application.
(1) technical field
The relevant a kind of lighting device of the present invention is particularly relevant for a kind of light emitting diode illuminating apparatus that is used in projector as the lamp source.
(2) background technology
Along with prevailing of multimedia bulletin, projector has become one of computer equipment of office's indispensability, be widely used in meeting and various researchs place to operate schools, even become the audio-visual new selection of individual family playback of audio-visual, the trend of projector is towards small lightweight at present, and characteristics such as high image quality, low noise and high lamp source service life are to satisfy facility and the demand in the popular use.
Fig. 1 is a known projector 100 structures and light path schematic diagram.Its structure mainly is made up of an illuminator, one fen photosynthetic photosystem and an imaging system.Illuminator comprises a ultrahigh pressure mercury lamp (UHP mercurylamp, Ultra High Pressure mercury lamp) the paraboloidal reflector of 101, one tool (reflector) 103, one ultraviolet-IR-cut filter (ultraviolet-infrared cut filter, UV-IR cut filter) 105, one light integrator (optical integrator), 107 and one polarization conversion system (polarization conversion system, PCS) 113.Divide photosynthetic photosystem to form by a refracting telescope (reflecting mirror) group 115,117,119 and 121, one light-collecting lens (condense lens) group 123,125,127,129R, 129G and 129B, a dichroic mirror (dichroic mirror) group 131 and 133 and one 135 of light-combining prisms (X-cube).Imaging system then is made up of a liquid crystal light valve panel (liquid crystaldisplay light valve panel, LCD light valve panel) group 137R, 137G and 137B, a projection lens (projection lens) 139 and one projection screen 141.
The main function of illuminator provides the stable luminous fluxes outputs (opticalthroughput) of 100 1 of projectors, and by the design of light path precision, makes that this luminous flux can be evenly and efficiently by whole projector 100.The lamp source of this illuminator is to adopt high-intensity discharge arc light bulb (high-intensitydischarge lamp, HID lamp) ultrahigh pressure mercury lamp 101 of form, collocation has the reflector 103 of paraboloidal, remove that the light can avoid ultrahigh pressure mercury lamp 101 to send is to all the winds dispersed and the situation that causes the luminous flux loss, the most important thing is that this reflector with paraboloidal 103 can utilize paraboloidal characteristic, the light that sends by the ultrahigh pressure mercury lamp 101 that places the parabolic focus place will be reflected, and then being gathered into the source of parallel light of a circular distribution, the light energy that allows ultrahigh pressure mercury lamp 101 produce is projected that other optical elements utilize fully in the machine 100.Reflector 103 is outer has then installed a slice ultraviolet one IR-cut filter 105, its objective is to absorb the optical spectrum medium ultraviolet light that ultrahigh pressure mercury lamp 101 sent and the part of infrared light, only allows visible light spectrum pass through.In addition, light integrator 107 in the illuminator, its function on average enters the imaging system so that produce the uniform light source of a luminosity except the collimated light beam that reflector 103 is reflected gathering carries out spatial light intensity, another function promptly is this required distribution of light sources form when converting imaging to of the light source with this circular distribution, the light integrator 107 of this projector 100 is to adopt a lens arra integrator (lens array integrator), formed by one first lens arra 109 and one second lens arra 111, first lens arra 109 is in order to cut apart light source, wherein each sub-lens is with on the corresponding sub-lens in light source imaging to the second lens arra 111, second lens arra is then in order to the stack light source, after the overlap-add procedure that will distribute again by a plurality of rectangular shaped light source of first lens arra conversion, focus on again on the polarization conversion system 113.The light that 113 of polarization conversion systems can be crossed polarization is not made polarization, make light polarization direction convert S polarization or P polarization fully to, with the utilization rate that increases light and improve light harvesting usefulness, and cooperate via lens 123 light source is gathered into liquid crystal light valve panel 137R, 137G and the required size of 137B and becomes an equally distributed light source.
Dividing photosynthetic photosystem is to divide the actinic light action in order to carry out, mainly be that the visible light that illuminator produces is separated, make through ruddiness, green glow and blue light (being primaries) after separating and enter pairing liquid crystal light valve panel 137R, 137G and 137B carries out the image modulation, merge via the image of light-combining prism 135 after more afterwards, enter projection lens group 139 again image projecting to screen 1 41 is produced colored image liquid crystal light valve panel 137R, 137G and 137B modulation.Divide dichroic mirror 131 in the photosynthetic photosystem, be that its red light portion in the white light of ultrahigh pressure mercury lamp 101 lamp sources generation is separated, after being gathered into the light beam that meets liquid crystal light valve panel 137R size via refracting telescope 117 refraction and through light-collecting lens 129R, enter the modulation that liquid crystal light valve panel 137R carries out image, make light beam behind the modulation produce the effect of GTG with analog or digital driving framework; 133 of dichroic mirrors separate green glow in the white light and blue light, after green glow is gathered into the light beam that meets liquid crystal light valve panel 137G size via light-collecting lens 129G, enter the modulation that liquid crystal light valve panel 137G carries out image, blue light is then via light-collecting lens 125, refracting telescope 119, light-collecting lens 127, enter the modulation that liquid crystal light valve panel 137B carries out image behind refracting telescope 121 and the light-collecting lens 129B, red, green and blue three primary colors penetrate corresponding liquid crystal light valve panel 137R respectively, 137G and 137B carry out the image modulation, enter light-combining prism 135 afterwards and carry out image and merge action, the image of merging via lens subassembly 139 color difference eliminatings after projection imaging on projection screen 141.
The lamp source that illuminator adopted of known projector 100 is ultrahigh pressure mercury lamps 101 of high-intensity discharge arc light bulb form, because the gas of filling in the bulb is the mercury of high pressure, can produce a large amount of ultraviolet lights and infrared light during use, optical element in many projectors 100 can absorb the energy of ultraviolet light, make optical element be heated and cause reduce service life, ultraviolet light also can influence liquid crystal light valve panel 137R simultaneously, liquid crystal alignment layer (the LC alignment layer) (not shown) of being made up of organic material in 137G and the 137B reduces the stability in the optical element running that contains organic material; Infrared light then is to cause projector 100 to produce the main reason of heat, optical element is heated and causes the optical element characteristic changing, use ultrahigh pressure mercury lamp not only to increase the load of heat abstractor (not shown) in the projector 100, the material of the optical element that can select for use when also having limited assembling, and then the cost that has improved manufacturing and keeped in repair.
Because ultrahigh pressure mercury lamp 101 costs an arm and a leg, the heat radiation of generation also directly influences the service life of ultrahigh pressure mercury lamp 101 itself.Therefore the lighting device of needing a kind of stable, long service life badly and can not producing thermal radiation injury overcomes the problem that known projector 100 adopts ultrahigh pressure mercury lamps 101 to be met with as the lamp source.In addition, the lamp source that illuminator adopted of known projector 100 is ultrahigh pressure mercury lamps 101 of high-intensity discharge arc light bulb form, since the optical spectrum that this kind ultrahigh pressure mercury lamp 101 produces the light of red frequency range a little less than, so the ratio that must rethink ruddiness, green glow and blue light when design divides photosynthetic photosystem just can make the colors of image balance of output, more increased whole projector 100 structural complexities, therefore needed a kind of purity of frequency spectrum height and lighting device simple in structure badly and replace the ultrahigh pressure mercury lamp 101 that known projector 100 is adopted.Moreover, the illuminator of known projector 100 is owing to adopt a ultrahigh pressure mercury lamp 101, must close refracting set 115 in the photosystem by the division of labor, 117,119 and 121 with the cooperating of dichroic mirror group 131 and 133, the white light that ultrahigh pressure mercury lamp 101 is produced is separated into red, blue, behind the green three road light primary colors, ECDC light prism 135 merges the back image output again, therefore the light path design of projector 100 must be very accurate, when projector 100 light path assembly failure or when running in manufacture process meets with mechanicalness external force such as vibrations or carrying and influences, this complicated light path design just easily because a certain optical element is subjected to displacement or damages, influences the projection quality of this projector 100; Therefore need the projector of an improvement badly, a light channel structure of simplifying is provided, the reliability and stability of the quantity that reduces optical elements in the known projector 100 when improving projector's 100 runnings.
(3) summary of the invention
Because in the foregoing invention background, the shortcoming of relevant known projector, the invention provides a kind of light emitting diode (light emitting diode, LED) lighting device, one of its purpose is that the illuminator that overcomes known projector produces a large amount of thermal-radiating problems because of adopting the ultrahigh pressure mercury lamp source, avoids that other optical elements are subjected to thermal-radiating injury to keep the stable running of projector in the projector.
Another object of the present invention provides a kind of light emitting diode illuminating apparatus, replace the ultrahigh pressure mercury lamp that known projector illuminator is adopted with light emitting diode illuminating apparatus, this light emitting diode illuminating apparatus long service life can reduce known projector and must often change the expendable cost that the lamp source is increased.
A further object of the present invention provides a kind of light emitting diode illuminating apparatus, use the high light emitting diode matrix of three kinds of spectral purities of red, green, blue as the lamp source, with a light-combining prism and the direct image output of a lens subassembly, improve the illuminator and the light path design of dividing its necessary precision complexity of photosynthetic photosystem of known projector then for the characteristic that cooperates ultrahigh pressure mercury lamp.
For realizing above-mentioned purpose, a kind of light emitting diode illuminating apparatus is provided according to an aspect of the present invention, comprise: a plurality of light-emitting diode components; With a light-combining prism, be by this a plurality of light-emitting diode components institute around, in order to merge the light beam that this a plurality of light-emitting diode component sends.
A kind of projector that uses light emitting diode illuminating apparatus is provided according to a further aspect of the invention, comprises: a plurality of light-emitting diode components; A plurality of liquid crystal light valve panels, to should a plurality of light-emitting diode components, the light beam that produces in order to these a plurality of light-emitting diode components of modulation; One light-combining prism, be by these a plurality of light-emitting diode components and corresponding a plurality of liquid crystal light valve panels institute around, carry out the image that produces behind the modulation in order to merge light beam that these a plurality of light-emitting diode components produce through penetrating these corresponding a plurality of liquid crystal light valve panels; With a lens subassembly, be positioned on the light path of this light-combining prism image output, be in order to receive the image of this light-combining prism output, to carry out the elimination of aberration and the action of imaging.
Provide a kind of projector that uses light emitting diode illuminating apparatus according to another aspect of the invention, comprise: a plurality of light-emitting diode components; A plurality of monocrystalline silicon liquid crystal light valve panels, to should a plurality of light-emitting diode components, the light beam that produces in order to these a plurality of light-emitting diode components of modulation; A plurality of polarization beam apparatus, to should a plurality of monocrystalline silicon liquid crystal light valve panels, in order to separate that corresponding light-emitting diode component produces and the light beam of the monocrystalline silicon liquid crystal light valve panel that incident should correspondence and the light beam that goes out via this corresponding monocrystalline silicon liquid crystal light valve panel modulation back reflection; One light-combining prism, by this a plurality of polarization beam apparatus institute around, in order to merge the light beam that these a plurality of monocrystalline silicon liquid crystal light valve panel modulation back reflections go out; With a lens subassembly, be positioned on the light path of this light-combining prism image output, in order to receive the image of this light-combining prism output, carry out the elimination of aberration and the action of imaging.
Light emitting diode illuminating apparatus of the present invention, form the lamp source of three light-emitting-diode panels with three kinds of single color LED arrays of red, green, blue as projector, with the illuminator comparison of known projector, the life-span of not only increase using also makes projector in that other optical elements are unlikely to be subjected to the thermal radiation injury that the lamp source is produced, and can reduce the cost that projector keeps in repair.In addition, use the projector of the high single color LED array of three kinds of spectral purities as the lamp source, known projection flight lighting system and the framework that divides photosynthetic photosystem have been simplified, directly merge the image that is produced by three single color LED array lamp sources with a light-combining prism and lens subassembly, and image output, this invention has reduced the quantity of optical element in the projector, except the stability that can improve projector and projector is reached the frivolous design, also can reduce the cost that projector makes simultaneously.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 is the schematic diagram of known liquid crystal projector;
Fig. 2 is the schematic diagram of light emitting diode illuminating apparatus of the present invention;
Fig. 3 is to use the schematic diagram of the liquid crystal projector of light emitting diode illuminating apparatus of the present invention; And
Fig. 4 is to use the schematic diagram of the monocrystalline silicon liquid crystal projector of light emitting diode illuminating apparatus of the present invention.
(5) specific embodiment
Next be detailed description of the present invention, the description to light emitting diode illuminating apparatus and the projector that uses this light emitting diode illuminating apparatus in the following explanation does not comprise complete structure.The prior art that the present invention continued to use is only done quoting of emphasis formula at this, to help elaboration of the present invention.And relevant diagram is also drawn according to actual ratio in the following interior literary composition, and its effect is only being expressed architectural feature of the present invention.
The invention provides a kind of light emitting diode illuminating apparatus, form the lamp source of three light-emitting-diode panels with three kinds of single color LED arrays of red, green, blue as projector, can avoid that other optical elements are subjected to thermal-radiating injury in the projector, and then reduce the cost in projector's maintenance; In addition, use the projector of this light emitting diode illuminating apparatus, can simplify the framework of known projector, directly merge the light beam that is produced by three single color LED arrays with a light-combining prism, warp is with a lens subassembly image output again, improve the illuminator and the light path design of dividing its necessary precision complexity of photosynthetic photosystem of known projector for the characteristic that cooperates ultrahigh pressure mercury lamp, except the stability that can improve projector and projector is reached the frivolous design, also can reduce the cost that projector makes simultaneously.
With reference to Fig. 2, it is the structural representation of the light emitting diode illuminating apparatus 200 of a preferred embodiment of the present invention.It mainly is made up of a red light emitting diodes assembly 201, a green LED assembly 211, a blue LED assembly 221, a light-combining prism 231, a lens subassembly 233, a light integrator 235 and a polarization conversion system 241.Red light emitting diodes assembly 201 is made up of a red light emitting diodes array 203 light-collecting lens 205 corresponding with; 211 of green LED assemblies are made up of a green LED array 213 light-collecting lens 215 corresponding with; Blue LED assembly 221 also is made up of a blue LED array 223 light-collecting lens 225 corresponding with.By red, green, blue three monochrome photodiode arrays 201,211 and 221 three groups of area sources forming can provide a stable luminous flux output, can light a lamp simultaneously or with red, green, the mode that blue list type is lit a lamp is sent the high single color LED array beams of spectral purity efficiently, through its corresponding light-collecting lens 205,215 and 225 with light beam be gathered into be fit to the required size of light prism 231 after, enter light-combining prism 231 and carry out the light beam merging, light-combining prism 231 is in conjunction with trichromatic light beam and be output in the action that lens subassembly 233 carries out color difference eliminating (chromatic) and imaging, carrying out spatial light intensity through the light integrator of being made up of one first lens arra 237 and one second lens arra 239 235 more on average produces the uniform light beam of a luminosity and converts the required beam distribution form of this lighting device to, last light beam uniformly enters polarization conversion system 241, the light that polarization is not crossed is made polarization, make light polarization direction convert S polarization or P polarization fully to, with the utilization rate that increases light and improve light harvesting usefulness.
If analysis from the above mentioned with the lamp source of light emitting diode illuminating apparatus 200 of the present invention as projector, can be simplified the inner complicated light path design of projector, optics original paper quantity is reduced, and then improve the reliability of projector, also saves the cost on making; On the other hand, use this light emitting diode illuminating apparatus 200 can improve known super-pressure because of producing heat radiation, make projector keep normal and stable running the problem that other optics original papers damage as the lamp source of projector.
With reference to Fig. 3, it is liquid crystal projector 300 structural representations of the use light emitting diode illuminating apparatus of a preferred embodiment of the present invention.It mainly is made up of a red light emitting diodes assembly 301, a green LED assembly 311, a blue LED assembly 321, a liquid crystal light valve panel sets 307,317 and 327, one light-combining prism 331, a lens subassembly 333, a light integrator 335, a polarization conversion system 341 and a projection screen 343.Red light emitting diodes assembly 301 is made up of a red light emitting diodes array 303 light-collecting lens 305 corresponding with.311 of green LED assemblies are made up of a green LED array 313 light-collecting lens 315 corresponding with.Blue LED assembly 321 also is made up of a blue LED array 323 light-collecting lens 325 corresponding with.Three groups of area sources being made up of red, green, blue three monochrome photodiode arrays 301,311 and 321 can provide a stable luminous flux output, can light a lamp simultaneously or send the high single color LED array beams of spectral purity efficiently, through its corresponding light-collecting lens 305,315 and 325 light beam is gathered into and be fit to the required size of liquid crystal light valve panel 307,317 and 327 in the mode that the red, green, blue list type is lit a lamp.Liquid crystal light valve panel 307,317 and 327 is to make the light beam that penetrates produce the effect of GTG with analog or digital driving framework, red, green and blue trichromatic light beam penetrates corresponding liquid crystal light valve panel 307 respectively, 317 and 327 carry out entering behind the modulation light-combining prism 331 carries out image and merges action, the image that merges carries out the action of color difference eliminating and imaging via lens subassembly group 333, carry out spatial light intensity through the light integrator of forming by one first lens arra 337 and one second lens arra 339 335 again and on average produce the required beam distribution form of the uniform image of a luminosity and this projector 300, last image is via polarization conversion system 341, with in the image not the light crossed of polarization make polarization, make light polarization direction convert S polarization or P polarization fully to, increase the utilization rate of light, last image is projected onto imaging on the projection screen 343.
Another preferred embodiment by the invention described above is analyzed, use is with liquid crystal projector 300 structures of light emitting diode illuminating apparatus, be at light-emitting diode component 301,311 and 321 with light-combining prism 331 between add corresponding liquid crystal light valve panel 307,317 and 327 carry out the image modulation, liquid crystal light valve panel 307,317 and 327 effects that make the light beam that penetrates produce GTG with analog or digital driving framework become the image of a monochrome, carry out image via light-combining prism 331 and merge back input lens assembly 333, imaging was to projection screen 343 after light integrator 335 carried out image processing with polarization conversion system 341, and structurally more known projector of whole projector 300 is simple and need not complicated light path design.
With reference to Fig. 4, it is monocrystalline silicon liquid crystal projector 400 structural representations of the use light emitting diode illuminating apparatus of another preferred embodiment of the present invention.It is mainly by a red light emitting diodes assembly 401, a green LED assembly 411, a blue LED assembly 421, a monocrystalline silicon liquid crystal light valve panel (liquid crystal on silicon panel, LCOS Panel) group 407,417 and 427, one polarization beam apparatus (polarizing beam splitter, PBS) form by group 409,419 and 429, one light-combining prism 431, a lens subassembly 433, a light integrator 435, a polarization conversion system 441 and a projection screen 443.Red light emitting diodes assembly 401 is made up of a red light emitting diodes array 403 light-collecting lens 405 corresponding with.411 of green LED assemblies are made up of a green LED array 413 light-collecting lens 415 corresponding with.Blue LED assembly 421 also is made up of a blue LED array 423 light-collecting lens 425 corresponding with.By red, green, blue three single color LED arrays 401,411 and 421 three groups of area sources forming send the high monochromatic array beams of spectral purity, through its corresponding light-collecting lens 405,415 and 425 are gathered into light beam and are fit to monocrystalline silicon liquid crystal light valve panel 407, the monocrystalline silicon liquid crystal light valve panel 407 of 417 and 427 required size back incident correspondences, 417 and 427 carry out modulation, but monocrystalline silicon liquid crystal light valve panel 407,417 and 427 is the reflective liquid crystal light valve panel, its incident is identical with reflection path, therefore need the corresponding polarization beam apparatus 409 of collocation, 419 with 429 in order to separate incident monocrystalline silicon liquid crystal light valve panel 407,417 and 427 light beam and process monocrystalline silicon liquid crystal light valve panel 407, the light beam that 417 and 427 modulation back reflections go out, enter light-combining prism 431 through the light beam behind the modulation and carry out image merging action, the image that merges carries out the action of color difference eliminating and imaging via lens subassembly group 433, carry out spatial light intensity through the light integrator of forming by one first lens arra 437 and one second lens arra 439 435 again and on average produce the required beam distribution form of the uniform image of a luminosity and this projector 400, last image is via polarization conversion system 441, with in the image not the light crossed of polarization make polarization, make light polarization direction convert S polarization or P polarization fully to, increase the utilization rate of light, last image is projected onto imaging on the projection screen 443.
By the described light emitting diode illuminating apparatus of above preferred embodiment of the present invention, and use the liquid crystal projector of this light emitting diode illuminating apparatus and this binomial preferred embodiment of monocrystalline silicon liquid crystal projector to learn, the purpose of this invention is to provide a kind of light emitting diode illuminating apparatus that is used in projector, with red, green, blue three kinds of single color LED arrays form the lamp source of three light-emitting-diode panels as projector, overcoming known projector adopts ultrahigh pressure mercury lamp and produces thermal-radiating problem, can avoid that other optical elements are subjected to thermal-radiating injury in the projector, reduce the cost in projector's maintenance; In addition, use the projector of the high single color LED array of these three kinds of spectral purities as the lamp source, can simplify known projection flight lighting system and the framework that divides photosynthetic photosystem complexity, directly merge the light beam that is produced by three single color LED array lamp sources with a light-combining prism, after cooperating liquid crystal light valve panel group or monocrystalline silicon light valve panel group modulation light beam to become the image of tool GTG, can be via the lens subassembly image output, use the projector of the light emitting diode illuminating apparatus of the present invention's proposition as the lamp source, not only can reduce the quantity of optical element in the projector, make projector reach frivolous design, and also improved stability and projection quality when projector operates.
Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.
Claims (16)
1. projector that uses light emitting diode illuminating apparatus comprises:
A plurality of light-emitting diode components;
A plurality of liquid crystal light valve panels, to should a plurality of light-emitting diode components, the light beam that produces in order to these a plurality of light-emitting diode components of modulation;
One light-combining prism, be by these a plurality of light-emitting diode components and corresponding a plurality of liquid crystal light valve panels institute around, carry out the image that produces behind the modulation in order to merge light beam that these a plurality of light-emitting diode components produce through penetrating these corresponding a plurality of liquid crystal light valve panels; With
One lens subassembly is positioned on the light path of this light-combining prism image output, is in order to receive the image of this light-combining prism output, to carry out the elimination of aberration and the action of imaging.
2. the projector of use light emitting diode illuminating apparatus as claimed in claim 1 is characterized in that described a plurality of light-emitting diode component comprises a red light emitting diodes assembly, a green LED assembly and a blue LED assembly.
3. the projector of use light emitting diode illuminating apparatus as claimed in claim 2, it is characterized in that described red light emitting diodes assembly comprises the red light emitting diodes array light-collecting lens corresponding with, this light-collecting lens is placed between this red light emitting diodes array liquid crystal light valve panel corresponding with this.
4. the projector of use light emitting diode illuminating apparatus as claimed in claim 2, it is characterized in that described green LED assembly comprises the green LED array light-collecting lens corresponding with, this light-collecting lens is placed between this green LED array liquid crystal light valve panel corresponding with this.
5. the projector of use light emitting diode illuminating apparatus as claimed in claim 2, it is characterized in that described blue LED assembly comprises the blue LED array light-collecting lens corresponding with, this light-collecting lens is placed between this blue LED array liquid crystal light valve panel corresponding with this.
6. the projector of use light emitting diode illuminating apparatus as claimed in claim 1 also comprises an integrator, is positioned on the light path of this lens subassembly image output, receives the image of this lens subassembly output and does the processing of homogenising.
7. the projector of use light emitting diode illuminating apparatus as claimed in claim 6 is characterized in that described integrator comprises one first lens arra and one second lens arra.
8. the projector of use light emitting diode illuminating apparatus as claimed in claim 6 also comprises a polarization conversion system, is positioned on the light path of this integrator image output, is in order to the loss that reduces luminous energy and exports image to an imaging screen.
9. projector that uses light emitting diode illuminating apparatus comprises:
A plurality of light-emitting diode components;
A plurality of monocrystalline silicon liquid crystal light valve panels, to should a plurality of light-emitting diode components, the light beam that produces in order to these a plurality of light-emitting diode components of modulation;
A plurality of polarization beam apparatus, to should a plurality of monocrystalline silicon liquid crystal light valve panels, in order to separate that corresponding light-emitting diode component produces and the light beam of the monocrystalline silicon liquid crystal light valve panel that incident should correspondence and the light beam that goes out via this corresponding monocrystalline silicon liquid crystal light valve panel modulation back reflection;
One light-combining prism, by this a plurality of polarization beam apparatus institute around, in order to merge the light beam that these a plurality of monocrystalline silicon liquid crystal light valve panel modulation back reflections go out; With
One lens subassembly is positioned on the light path of this light-combining prism image output, in order to receive the image of this light-combining prism output, carries out the elimination of aberration and the action of imaging.
10. the projector of use light emitting diode illuminating apparatus as claimed in claim 9 is characterized in that described a plurality of light-emitting diode component comprises a red light emitting diodes assembly, a green LED assembly and a blue LED assembly.
11. the projector of use light emitting diode illuminating apparatus as claimed in claim 10, it is characterized in that described red light emitting diodes assembly comprises the red light emitting diodes array light-collecting lens corresponding with, this light-collecting lens is placed between this red light emitting diodes array polarization beam apparatus corresponding with this.
12. the projector of use light emitting diode illuminating apparatus as claimed in claim 10, it is characterized in that described green LED assembly comprises the green LED array light-collecting lens corresponding with, this light-collecting lens is placed between this green LED array polarization beam apparatus corresponding with this.
13. the projector of use light emitting diode illuminating apparatus as claimed in claim 10, it is characterized in that described blue LED assembly comprises the blue LED array light-collecting lens corresponding with, this light-collecting lens is placed between this blue LED array polarization beam apparatus corresponding with this.
14. the projector of use light emitting diode illuminating apparatus as claimed in claim 9 is characterized in that also comprising an integrator, is positioned on the light path of this lens subassembly image output, receives the image of this lens subassembly output and does the processing of homogenising.
15. the projector of use light emitting diode illuminating apparatus as claimed in claim 14 is characterized in that described integrator comprises one first lens arra and one second lens arra.
16. the projector of use light emitting diode illuminating apparatus as claimed in claim 14 also comprises a polarization conversion system, is positioned on the light path of this integrator image output, in order to the loss that reduces luminous energy and export image to an imaging screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101379265A CN101093066A (en) | 2003-10-22 | 2003-10-22 | Illuminating apparatus of light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101379265A CN101093066A (en) | 2003-10-22 | 2003-10-22 | Illuminating apparatus of light emitting diode |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101028650A Division CN100356269C (en) | 2003-10-22 | 2003-10-22 | Light-emitting diode llluminating apparatus |
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| CN101093066A true CN101093066A (en) | 2007-12-26 |
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| CNA2007101379265A Pending CN101093066A (en) | 2003-10-22 | 2003-10-22 | Illuminating apparatus of light emitting diode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011981A1 (en) * | 2009-07-31 | 2011-02-03 | 深圳市光峰光电技术有限公司 | Led illuminating device for stage lighting and method for improving color uniformity of the device |
| CN104181760A (en) * | 2014-09-03 | 2014-12-03 | 中国科学院半导体研究所 | Projection display system based on full-color light-emitting diode matrixes |
-
2003
- 2003-10-22 CN CNA2007101379265A patent/CN101093066A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011981A1 (en) * | 2009-07-31 | 2011-02-03 | 深圳市光峰光电技术有限公司 | Led illuminating device for stage lighting and method for improving color uniformity of the device |
| US9222643B2 (en) | 2009-07-31 | 2015-12-29 | Appotronics Ltd. | LED illuminating device for stage lighting and method for improving color uniformity of the device |
| CN104181760A (en) * | 2014-09-03 | 2014-12-03 | 中国科学院半导体研究所 | Projection display system based on full-color light-emitting diode matrixes |
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