CN101008708A - Low frequency reinforcing optic engine used in projection display - Google Patents
Low frequency reinforcing optic engine used in projection display Download PDFInfo
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- CN101008708A CN101008708A CN 200610002676 CN200610002676A CN101008708A CN 101008708 A CN101008708 A CN 101008708A CN 200610002676 CN200610002676 CN 200610002676 CN 200610002676 A CN200610002676 A CN 200610002676A CN 101008708 A CN101008708 A CN 101008708A
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Abstract
This invention relates to projection display low frequency compensation machine, wherein, the display comprises one light frequency composed of ultraviolet light ad multiple visible light bulb with brightness lower than ideal brightness; the projector is to modulate bulb beam according to one image data; the light machine comprises following parts: one reflection lens to reflect bulb beam; one even split device to receive reflection beam to divide frequency; the optical part is set with one component to absorb ultraviolet component.
Description
Technical field:
The present invention relates to a kind of ray machine, relate in particular to the low frequency reinforcing optic engine that a kind of projection display is used.
Background technology:
When rebuilding dynamic image data, common display is nothing more than the display and the projection display of cathode ray tube (CRT) display, LCD fixed measures such as (LCD) at present.When needs are amplified to image data big zone and view and admire, the often sharply multiplication of the cost of the display device of fixed measure with the expansion of display size.Therefore in large-sized demonstration field, still based on the projection display.
Yet along with the image frame size is amplified, the brightness of this picture in a standard area will reduce with the expansion of picture dimension.Moreover the luminosity of luminescence component has its limit, if increase bulb sizes at hardware aspect reluctantly, change gaseous tension in the bulb, increase electric current etc., the noise that the counter productive of often bringing is sent when for example high temperature, ultraviolet ray strengthen, shorten serviceable life, the heat radiation of other optical path component etc. surpasses the lifting of light intensity.Therefore, the light-source brightness that how effectively to promote the projection display becomes the important topic in present technique field.
On the other hand, because that removes simple sensing lightness in the human eye looks post (rod) extracellular, the cone (cone) cell that also has three kinds of different sensing frequencies, be responsible for the incident light sensing of part visible frequency (being red, green, blue) respectively, so roughly equally distributed each frequency coloured light of script intensity in the daylight, can sensing according to human eye, can divide into ultraviolet light-blue light-green glow-ruddiness-infrared light by the high frequency tremendously low frequency; The human eye especially susceptibility to green light is the highest.
In other words, although when true sunshine, have infrared light and ultraviolet light, when on for example TV or motion picture screen, rebuilding above-mentioned optical image data, the audience for these human eyes can't sensing frequency content whether exist, show no sign of sensation.On the contrary, because the electromagnetic oscillation frequency of ultraviolet light is higher, each photon also carries higher-energy, in case ultraviolet light is advanced in optical facilities, photon than each visible frequency causes more major injury for optical module on the contrary, makes optical path component serviceable life shorten.Also be, when making video display, as long as can be in visible-range, fully provide red, green, blue three coloured light, stimulate the vision receptacle of human eye, even it is at the luminous intensity skewness of different frequency, completely different with the frequency-Luminance Distribution of daylight, still may cheat audience's eyes, and be assert that the reconstruction color is very true and bright-coloured.
By quantizing the whole color and luster that is presented that adds up of the luminous bundle of a certain light source of explanation, can be with color according to luminous the comparing of different fixed stars in the celestial body, and indicate this color and luster with the temperature of fixed star, be " colour temperature ", Europe is 6500K for the suggestion colour temperature of HDTV, colour temperature is high promptly blue partially, and colour temperature is low then red partially.
The luminescence component that the most widely adopts in projection display industry is UHP (the Ultra High Performance) bulb that Philips company releases at present.L as shown in Figure 1
1, the luminous frequency spectrum of this bulb is located about wavelength 350nm (ultraviolet light), 410nm (dark blue), 440nm (indigo plant), 550nm (green) respectively, has four brightness peak I, II, III, IV.Yet in the ruddiness field, its luminous intensity is less than 1/3 of these four peak values.Therefore, when adopting this bulb, if comply with the low-light level of ruddiness composition, meet the light source of Europe rule, will painstakingly absorb or get rid of and force down the brightness of green glow and blue light with construction.On the contrary, if the brightness that will effectively improve the projection display, just can not excess oppress blue light and green glow, and must stand the higher situation of whole light emission color temperature.
HL-P5085W back projection TV as the release of Samsung (SAMSUNG) company, just carry out constraining of different proportion at the blueness of above-mentioned bulb and green light composition, make that whole colour temperature can be by 9100K (cool 2), 8450 K (cool 1), 7400 K, 6700 K (warm 1), to minimum 5600K (warm 2).Yet as mentioned above, it is lower in red light portion brightness to be subject to bulb, build the warm colour system of low colour temperature, has only pressuredly to press down high colour temperature composition and just can reach, and therefore, during minimum warm 2 patterns of colour temperature, luminosity only has 285cd/m
2, only be 64% of maximum brightness 443cd/m2.
In brief, under the frequency distribution of bulb situation not fully up to expectations, obtain the just necessary sacrificing luminance of desired color temperature, vice versa.
When above-mentioned bulb for example is applied to the DMD projection display, optical mechanism roughly as shown in Figure 2, it is a focus that bulb 90 is placed in an elliptic reflector 80, allow reflected light earlier through a halo 84, halo for example has three and windows 842,844,846, each is windowed and 842,844,846 allows different visible light composition R, G, B to penetrate respectively, allows R, G, B composition to penetrate each correspondence in order and windows and cause the sequential beam split.The color separation folded light beam then concentrates on another focus place of described elliptic reflector 80, and at this place for example light harvesting homogenizer 86 of an integration rod is set, and allows main folded light beam concentrate and enters light harvesting homogenizer 86, makes that the light beam that penetrates is even in space distribution.
After passing through the part optical path component again, according to sequential by the light beam irradiates of color separation to the DMD module, carrying out spatial modulation, drive each structure cell of DMD module according to the image data signal of input, determine the length and angle reflection interval of each structure cell, thereby on screen, rebuild described image data.
Look back aforementioned each luminescence peak again, the ultraviolet light part of wherein high frequency, the about 350nm of wavelength not only can't can not be utilized by sensing because of human eye, and because frequency is the highest, energy that each photon is taken is also the highest, and entering becomes an adverse factor that lowers each optical path component life-span behind the optical mechanism on the contrary.Therefore the research staff many on the coating of catoptron diligently, with L
1In visible light become sub reflector, and allow infrared light and ultraviolet light composition penetrate or directly absorb, make energy distribution formation as shown in Figure 3 the L of the luminous bundle of institute at each wavelength
2, even install special cover plate forwardly additional, further reduce the output of infrared light and ultraviolet light composition and formation L
3Even through so handling, still because described peak I original brightness is too high, only its composition can be weakened into I ' and can't get rid of fully, cause still having part ultraviolet light composition to enter in the optical system.And other fails to enter the ultraviolet light of optical system, no matter is penetrate through reflective mirror and overflowing in casing, or is absorbed by mirror coating, all still can cause harmful effects such as temperature rising, assembly life-span shortening.
If above-mentioned ultraviolet light can be converted into the ruddiness composition that comparatively is short of in the luminous frequency spectrum, not only effectively promote the brightness of the projection display, and the ultraviolet light that originally throw into question can be recycled, kill two birds with one stone real the genus.Certainly, if can promote the brightness of indigo plant, composition such as green synchronously, that is with even more ideal.
Further, for the manufacturing of for example Philips UHP discharge bulb, the internal inflation pressure of bulb difference, the brightness that can cause each peak value when luminous is difference to some extent, as Fig. 4 center line L
4Shown in, the brightness of (atmospheric pressure is about 1.025Bar) green glow reached 0.43W/nm, the about 0.4W/nm of blue peak brightness, and the only about 0.04W/nm of ruddiness brightness approximately when inflation reached 160Bar in bulb.When inflation reached 200Bar, then luminosity curve was L
5
Shown in line L6, charge pressure is to about 240Bar in increasing bulb, and green peak brightness is reduced to 0.22W/nm approximately, and blue peak is reduced to 0.22W/nm, and ruddiness brightness is still roughly remained stationary, and makes three's luminosity further each other.Be subject to the luminance shortage of the composition that glows, in the prior art, for cooperating the low luminous intensity of ruddiness composition, the high luminous intensity of green glow and blue light is not only unnecessary, must painstakingly absorb on the contrary, constrain, and more causes extra heat burden.Also therefore, the fabricator would rather select to increase the bulb internal pressure to the high pressure more than the 240Bar, and is poor in the hope of the luminous intensity of reducing between each frequency.At this moment, the bulb air pressure inside is far above atmospheric pressure, and not only must improve the bulb glass physical strength and improve manufacturing cost, and the risk probability that causes exploding improves, never be desirable selection.
On the contrary, in case brightness that can reinforcement ruddiness just can be selected lower bulb air pressure inside, and obtains brighter green glow and blue light, reach simultaneously and promote luminescence component brightness and the double effects that reduces application risk.
Summary of the invention:
Therefore, one of the technical problem to be solved in the present invention is that the light source of a kind of Strengthenable ruddiness brightness is provided.
Another technical matters that the present invention will solve is that a kind of light source that improves the projection display equipment overall brightness is provided.
The technical matters again that the present invention will solve is to provide a kind of colour temperature comparatively ideal light source.
The another technical matters that the present invention will solve is, a kind of ultraviolet light composition that reduces is provided, and prolongs each optical path component light source in serviceable life.
The also technical matters that the present invention will solve is, a kind of light source of selecting the bulb low than the conventional bulb air pressure inside is provided, and effectively reduces the bulb risk of explosion.
Therefore, the low frequency reinforcing optic engine that the projection display of the present invention is used, the described projection display has the bulb that a glow frequency comprises a ultraviolet light composition and a plurality of visible light compositions, and in the described visible light composition, the brightness of at least one frequency content is lower than a desirable brightness; And the described projection display is that described ray machine comprises according to image data signal modulation and the projection light beam from described bulb: an optical module, comprise a catoptron, and be used to reflect light beam from described bulb; One homogenize light-dividing device is used to receive directly from described bulb and the reflection light beam from described catoptron, and makes described outgoing beam homogenize and according to frequency separation; Described optical module is provided with one and is used to absorb described ultraviolet light composition, and is subjected to described ultraviolet light composition to excite the described fluoresent coating that is lower than desirable luminance frequency composition of radiation; And one have the spatial modulation module of a plurality of structure cells, and modulate each structure cell according to described image data signal, modulates whereby from the frequency division light beam of the described optical module power at each structure cell correspondence position.
The low frequency reinforcing optic engine of using according to the projection display provided by the invention also has following attached technical characterictic:
Described fluoresent coating is applied in the one side of described mirror surface to described bulb.
Described homogenize light-dividing device comprises that one is used to receive from described bulb and described catoptron light beam and the spectral module that separates according to each frequency content, and will be from the even optical module of the dichroic beam homogenize of described spectral module.
Described homogenize light-dividing device comprises that one is used to receive from described bulb and described catoptron light beam and the even optical module that separates according to each frequency content, and is used for the spectral module from the color separation of described even optical module light beam.
Described even optical module is an integration rod, have the plane of incidence towards described bulb, an exit facet in contrast to the described plane of incidence, and one connect the described plane of incidence and exit facet around the side.
Described fluoresent coating is applied in the described plane of incidence.
Described fluoresent coating is applied in described exit facet.
Described fluoresent coating also is covered in described around the side.
Describedly be coated with a reflectance coating, stop the light beam and the described fluoresent coating fluoresce that enter described integration rod by the plane of incidence to spill whereby by described side around the side.
Described spectral module is a halo, has a plurality of windowing of allowing respectively that the different visible light composition penetrates, and whereby, allows each described different frequency composition to penetrate each correspondence according to sequential and windows and form the sequential beam split.
In described the windowing, corresponding at least described to be lower than that one of desirable luminance frequency composition windows be to be coated with described fluoresent coating.
Described spectral module is an Amici prism.
Described Amici prism has a plane of incidence and a plurality of exit facet, and described fluoresent coating is applied in the described plane of incidence.
Described spectral module is a color separation film, whereby, described homogenize light beam is divided into the different angles direction penetrate.
Described color separation film is to be used to reflect describedly be lower than desirable luminance frequency composition, and described fluoresent coating is applied side in described color separation film towards described bulb.
Described catoptron is an elliptical reflector, and described bulb is a focus that is arranged at described elliptical reflector.
Described optical module also is provided with one and is used to reflect the described reflectance coating that is lower than desirable luminance frequency component beam, and described reflectance coating than described fluoresent coating away from described spatial modulation module.
The low frequency reinforcing optic engine of using according to the projection display provided by the invention, by in light path, increasing fluorescent material, absorb unwelcome ultraviolet light composition originally, and be converted to originally obviously not enough ruddiness composition, the ruddiness of one side reinforcement shortcoming, make green glow and blue light needn't make unnecessary sacrifice, thereby improve the brightness of whole optical mechanism; On the other hand, ultraviolet light is significantly absorbed, and reduces the infringement of ultraviolet light for optical path component, effectively increases each assembly serviceable life.Especially during fabrication, need not excessively increase gaseous tension in the bulb,, can reduce the high pressure of bulb inside, reduction risk of explosion and improve safety in utilization to constrain the luminous intensity of green glow and blue light ingredient.
Description of drawings:
Fig. 1 is the graph of a relation of the UHP of Philips company bulb emission wavelength and intensity;
Fig. 2 is the synoptic diagram of existing DMD type optical projector;
Fig. 3 is with the emission wavelength behind the UHP bulb removal ultraviolet light composition and the graph of a relation of intensity in the prior art;
Fig. 4 is the emission wavelength of UHP bulb under different air pressure inside and the graph of a relation of intensity;
Fig. 5 is a synoptic diagram of using the DMD projection display of the present invention's first preferred embodiment light source;
Fig. 6 is the relevant position synoptic diagram of bulb, catoptron and the fluoresent coating of Fig. 5 embodiment;
Fig. 7 is the relevant position synoptic diagram of the present invention's second preferred embodiment halo and fluoresent coating;
Fig. 8 is the even optical module of the present invention's the 3rd preferred embodiment light source and the relevant position synoptic diagram of fluoresent coating;
Fig. 9 is the relevant position synoptic diagram of even optical module, reflectance coating and fluoresent coating of the light source of the present invention's the 4th preferred embodiment;
Figure 10 is a LCOS projection display synoptic diagram of using the present invention's the 5th preferred embodiment light source;
Figure 11 is the relevant position synoptic diagram of Amici prism, reflectance coating and the fluoresent coating of Figure 10 embodiment;
Figure 12 is a LCOS projection display synoptic diagram of using the present invention's the 6th preferred embodiment light source.
[primary clustering symbol description]
2 ... ray machine 10,90 ... bulb
20,80 ... catoptron 22 ... optical lens group
24,84 ... halo 26,86 ... light harvesting homogenizer (integration rod)
30 ... light source 44 ... Amici prism
200 ... glass baseplate 202 ... the reflection horizon
262,446 ... the plane of incidence 264 ... exit facet
266 ... sidewall 267 ... reflectance coating
442,444 ... reflectance coating 442 ', 444 ' ... color separation film
480 ... polarization sheet 482,484,486 ... liquid crystal board
488 ... light-combining prism
204,243,245,247,263,265,447,443 ' ... fluoresent coating
242,244,246,842,844,846 ... window
L
1, L
2, L
3, L
4, L
5, L
6Line
I, II, III, IV, I ' ... peak value
Embodiment:
About aforementioned and other technology contents, characteristics and functional effect of the present invention, in the detailed description of the preferred embodiment that provides below in conjunction with accompanying drawing, will clearly present.
No matter the low frequency reinforcing optic engine that the projection display of the present invention is used is applied to for example LCOS projection display, or the DLP projection display etc., but equal smooth implementation.These projection displays all have the spatial modulation module of more than one structure cell (cell), and the spatial modulation module can drive according to an image data signal that is received, modulation is from the light beam of described light source, and the light intensity that each structure cell position is projected is weak corresponding to the above-mentioned image data signal.
The glow frequency that The present invention be directed to bulb comprises the projection display of a ultraviolet light composition and a plurality of visible light compositions, in the described visible light composition, the brightness of at least one frequency content is lower than a desirable brightness, be in the narration of example with the UHP discharge bulb, this is lower than desirable luminance frequency composition and is meant ruddiness.Certainly, also can be when the UHE of P-VIP, the Matsushita of the NSH, the Osram that use other model bulb such as Ushio or other similar luminescence component, select other visible frequency to be lower than desirable luminance frequency composition and in addition reinforcement as described.
The present invention's first preferred embodiment is an example with the DLP projection display shown in Fig. 5 to 6, and the wherein said projection display comprises a bulb 10 and a ray machine 2.Present embodiment and aforementioned prior art make an explanation with the bulb of UHP bulb as present embodiment equally, 2 of ray machines comprise an elliptical mirror 20, an optical lens group 22, as an integration rod 26 of even optical module, and a halo 24 as spectral module.
Wherein, remove glass baseplate 200 and reflection horizon 202 originally on the elliptical mirror 20, additionally be provided with a fluoresent coating 204, its fluorescent component is used to absorb the ultraviolet light composition from the UHP bulb, and be subjected to described ultraviolet light composition to excite radiation ruddiness composition, with the deficiency of reinforcement UHP bulb, and the ruddiness composition that is discharged dispersed on four sides.Towards the part fluorescence ruddiness of figure right side of face will with the luminous bundle of script bulb, import in the integration rod 26 jointly, make to break away from the light beam of integration rod 26 that the ruddiness composition is subjected to that fluoresent coating absorbs ultraviolet light and the institute's reinforcement of fluorescence ruddiness and the homogenising that discharge.
Certainly, can understand easily as those of ordinary skill in the art, the coating position of fluoresent coating is not as limit, at present common halo as shown in Figure 7, mainly be according to red, green, Lan Sanse uniformly-spaced windows 242,244,246, make halo whenever turn around, red, green, Lan Sanse will be according to the time sequencing beam split, and respectively take for about 1/3rd light-permeable time, be that the redness that fluoresent coating 243 is coated halo is windowed 242 near described bulb sides in the present embodiment, make ultraviolet light composition from bulb be absorbed by described fluoresent coating earlier and be converted to the fluorescein light component, wherein the fluorescence ruddiness that the right side discharges in figure will with from 10 luminous Shu Huihe of bulb, the common integration rod that enters through the windowing part of halo, the not enough originally ruddiness composition of reinforcement thus.
In addition, be further to promote brightness green and blue composition in the present embodiment, also the corresponding green of halo window 244 and blue 246 parts of windowing be coated with different greens and blue-fluorescence coating 245,247 respectively, make respectively the windowing when turning to optical axis of halo 24, described corresponding coloured light composition all can be by reinforcement, and significantly reduces ultraviolet light composition and harm thereof simultaneously.
Moreover described even optical module 26 not necessity is arranged on after the spectral module 24, although and in the present embodiment even optical module still be example with the integration rod, those skilled in the art can understand easily, described even optical module for example also can be similar products such as lens combination.
When integration rod 26 is the solid transparent material of for example glass, and because its refractive index is higher than extraneous air, make to enter the light of a plane of incidence of described integration rod 26 in a certain certain degree scope, but the part straight line passes this plane of incidence 262 and is directed to described exit facet 264 and appears, other then can be connected incident face 262 and exit facet 264 around sidewall 266 total reflections, appear up to exposing to phase exit facet 264 places.Therefore shown in Figure 8 as the present invention's the 3rd preferred embodiment, described fluoresent coating 263 can be applied on the plane of incidence of integration rod, make to be converted to fluorescence ruddiness by major part, and break away from exit facet 264 jointly with ruddiness, green glow, blue light originally and by halo 24 beam split from the ultraviolet light composition in described bulb 10 and catoptron 20 light beams.
Certainly, also can be shown in Fig. 9 fourth embodiment of the invention, at the exit facet 264 of integration rod 26 and be coated with described fluoresent coating 265 respectively around sidewall 266, and for reducing the light leak of integration rod, in fluoresent coating 265 outsides of present embodiment, more be coated with a reflectance coating 267 around sidewall 266, in the total reflected back integration rod 26 of fluorescence ruddiness that in the lump fluoresent coating 265 is discharged, converge ejaculation with original ruddiness, green glow, blue light ingredient.
Except that the above-mentioned ray machine of modulating in micro electronmechanical mode, those skilled in the art is easy to associate with the mechanism of liquid crystal board as the spatial modulation module.Shown in Figure 10 the present invention the 5th preferred embodiment vertical view, to be divided into the three primary colors light beam from the light of light source 30 with X type Amici prism 44, and respectively with polarization sheet 480 and three liquid crystal boards 482,484,486 as the spatial modulation module, modulated beam of light of all kinds after will modulating via light-combining prism 488 at last converges puts in order the mechanism of throwing, in the present embodiment, two clinodiagonals of Amici prism 44 vertical views are represented a color separation reflective coating of coating in the glass material respectively, as shown in figure 11, wherein a diagonal line is bass reflex film a 442 (reflect red composition, the green glow blue light penetrates), another diagonal line is high frequency reflectance coating 444 (a reflect blue composition, the ruddiness green glow penetrates); Therefore in the present embodiment, can be at the plane of incidence 446 fronts of Amici prism 44 coating one deck fluoresent coating 447, make the ultraviolet light composition be absorbed earlier and be converted to the fluorescein light component, and reflected, and follow the path directive red modulation liquid crystal board of ruddiness composition by bass reflex film 442.
Because the price of Amici prism 44 is higher, and the wherein difficult heat radiation of reflective coating 442,444, also there is the stakeholder to propose with color separation film as the beam split and the mechanism of closing light, shown in Figure 12 sixth embodiment of the invention, with the main difference of last embodiment promptly in described beam split and to close the light part body be to adopt color separation film 442 ', 444 '.Thus, described fluoresent coating 443 ' also is that applied bass reflex color separation film 442 ' in present embodiment is towards the bulb side, so that will absorb from the ultraviolet light composition of bulb and catoptron and be converted to fluorescence ruddiness, and be subjected to the reflection of described bass reflex color separation film 442 ', towards the liquid crystal board of corresponding modulating ruddiness.Certainly, if other bulb at non-UHP, this moment also may be according to its particular demands, and select to absorb the ultraviolet light composition and discharge the fluorescence material of fluorescence green glow or fluorescence blue light, and for example coating, high frequency reflects on the color separation film, or the bass reflex color separation film away from the bulb side, to reach the purpose that strengthens green glow or blue light ingredient.
By in ray machine, increasing above-mentioned fluoresent coating, not only effectively absorb the ultraviolet light composition, reduce the puzzlement that the ultraviolet light composition is walked crosswise in ray machine to be caused; And strengthen the not enough originally desirable luminance frequency composition that is lower than, promote the brightness of the projection display; And improve originally unsatisfactory colour temperature simultaneously, make the audience more comfortable; Especially when disclosed ray machine according to the present invention, after can promoting the ruddiness composition that for example uses the UHP bulb, the UHP bulb can reduce originally too high bulb internal gas pressure, significantly reduces the risk of using, thereby solves the technical matters of each side to be solved by this invention.
Above preferred embodiment only supplies explanation the present invention's usefulness, and is not limitation of the present invention.Those of ordinary skill in the art guides down without departing from the spirit and scope of the present invention, also can make various distortion and conversion, so all equivalent technical solutions all belongs to protection scope of the present invention.
Claims (17)
1. low frequency reinforcing optic engine that the projection display is used, the described projection display has the bulb that a glow frequency comprises a ultraviolet light composition and a plurality of visible light compositions, and in the described visible light composition, the brightness of at least one frequency content is lower than a desirable brightness; And the described projection display is that described ray machine comprises according to image data signal modulation and the projection light beam from described bulb:
One optical module comprises
One catoptron is used to reflect the light beam from described bulb;
One homogenize light-dividing device is used to receive directly from described bulb and the reflection light beam from described catoptron, and makes described outgoing beam homogenize and according to frequency separation;
It is characterized in that: described optical module is provided with one and is used to absorb described ultraviolet light composition, and is subjected to described ultraviolet light composition to excite the described fluoresent coating that is lower than desirable luminance frequency composition of radiation; And
One has the spatial modulation module of a plurality of structure cells, and modulates each structure cell according to described image data signal, modulates whereby from the frequency division light beam of the described optical module power at each structure cell correspondence position.
2. the low frequency reinforcing optic engine that the projection display according to claim 1 is used is characterized in that: described fluoresent coating is applied in the one side of described mirror surface to described bulb.
3. the low frequency reinforcing optic engine that the projection display according to claim 1 is used, it is characterized in that: described homogenize light-dividing device comprises that one is used to receive from described bulb and described catoptron light beam and the spectral module that separates according to each frequency content, and will be from the even optical module of the dichroic beam homogenize of described spectral module.
4. the low frequency reinforcing optic engine that the projection display according to claim 1 is used, it is characterized in that: described homogenize light-dividing device comprises that one is used to receive from described bulb and described catoptron light beam and the even optical module that separates according to each frequency content, and is used for the spectral module from the color separation of described even optical module light beam.
5. the low frequency reinforcing optic engine of using according to claim 3 or the 4 described projection displays, it is characterized in that: described even optical module is an integration rod, have the plane of incidence towards described bulb, an exit facet in contrast to the described plane of incidence, and one connect the described plane of incidence and exit facet around the side.
6. the low frequency reinforcing optic engine that the projection display according to claim 5 is used is characterized in that: described fluoresent coating is applied in the described plane of incidence.
7. the low frequency reinforcing optic engine that the projection display according to claim 5 is used is characterized in that: described fluoresent coating is applied in described exit facet.
8. the low frequency reinforcing optic engine that the projection display according to claim 7 is used is characterized in that: described fluoresent coating also is covered in described around the side.
9. the low frequency reinforcing optic engine that the projection display according to claim 8 is used, it is characterized in that: describedly be coated with a reflectance coating, stop the light beam and the described fluoresent coating fluoresce that enter described integration rod by the plane of incidence to spill whereby by described side around the side.
10. the low frequency reinforcing optic engine of using according to claim 3 or the 4 described projection displays, it is characterized in that: described spectral module is a halo, have a plurality of windowing of allowing respectively that the different visible light composition penetrates, whereby, allowing each described different frequency composition to penetrate each correspondence according to sequential windows and forms the sequential beam split.
11. the low frequency reinforcing optic engine that the projection display according to claim 10 is used is characterized in that: in described the windowing, corresponding at least described to be lower than that one of desirable luminance frequency composition windows be to be coated with described fluoresent coating.
12. according to the low frequency reinforcing optic engine that claim 3 or the 4 described projection displays are used, it is characterized in that: described spectral module is an Amici prism.
13. the low frequency reinforcing optic engine that the projection display according to claim 12 is used is characterized in that: described Amici prism has a plane of incidence and a plurality of exit facet, and described fluoresent coating is applied in the described plane of incidence.
14. according to the low frequency reinforcing optic engine that claim 3 or the 4 described projection displays are used, it is characterized in that: described spectral module is a color separation film, whereby, described homogenize light beam is divided into the different angles direction penetrate.
15. the low frequency reinforcing optic engine that the projection display according to claim 14 is used, it is characterized in that: described color separation film is to be used to reflect describedly be lower than desirable luminance frequency composition, and described fluoresent coating is applied side in described color separation film towards described bulb.
16. the low frequency reinforcing optic engine that the projection display according to claim 1 is used is characterized in that: described catoptron is an elliptical reflector, and described bulb is a focus that is arranged at described elliptical reflector.
17. the low frequency reinforcing optic engine that the projection display according to claim 1 is used, it is characterized in that: described optical module also is provided with one and is used to reflect the described reflectance coating that is lower than desirable luminance frequency component beam, and described reflectance coating than described fluoresent coating away from described spatial modulation module.
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| CN101498415B (en) * | 2008-01-30 | 2011-01-26 | 绎立锐光科技开发(深圳)有限公司 | Light source for improving mixing light emergent efficiency by fluorescent powder and method thereof |
| CN101498401B (en) * | 2008-01-29 | 2011-08-03 | 绎立锐光科技开发(深圳)有限公司 | Light source structure for improving light conversion efficiency by fluorescent powder |
| CN112628679A (en) * | 2020-12-11 | 2021-04-09 | 杭州新湖电子有限公司 | Combined luminous film photography lamp |
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2006
- 2006-01-26 CN CN 200610002676 patent/CN101008708A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101498401B (en) * | 2008-01-29 | 2011-08-03 | 绎立锐光科技开发(深圳)有限公司 | Light source structure for improving light conversion efficiency by fluorescent powder |
| CN101498415B (en) * | 2008-01-30 | 2011-01-26 | 绎立锐光科技开发(深圳)有限公司 | Light source for improving mixing light emergent efficiency by fluorescent powder and method thereof |
| CN112628679A (en) * | 2020-12-11 | 2021-04-09 | 杭州新湖电子有限公司 | Combined luminous film photography lamp |
| CN112628679B (en) * | 2020-12-11 | 2022-04-15 | 杭州新湖电子有限公司 | Combined luminous film photography lamp |
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