CN1403846A - Aplanatic lighted three-lens projecting display - Google Patents
Aplanatic lighted three-lens projecting display Download PDFInfo
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- CN1403846A CN1403846A CN 01131262 CN01131262A CN1403846A CN 1403846 A CN1403846 A CN 1403846A CN 01131262 CN01131262 CN 01131262 CN 01131262 A CN01131262 A CN 01131262A CN 1403846 A CN1403846 A CN 1403846A
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Abstract
The aplanatic lighted three-lens projecting display has two spectroscopes and at least one reflector to separate the incident white light into three color light beams and after the three color light beams are made to pass through separate aplanatic paths, they are projected to three light valves with output lens for image composition separately for regulation. Without using extending lens, the present invention has less variety of assemblies, and thus has relatively easy design and short development period.
Description
[technical field]
The present invention relates to a kind of three-lens projection display equipment, particularly relate to the three-lens projection display equipment that a kind of three look illumination light design for aplanatism.
[background technology]
General common liquid-crystal projecting displaying device has single-lens formula and three-lens formula, wherein single-lens formula has the compact and characteristic that can be convenient to carry of volume, but because of back focal length can't go out large tracts of land at the short distance inner projection, and associated components such as employed camera lens and spectroscope must be very high to the requirement of quality, precision, causes cost to improve.Though and the three-lens formula accounts for volume, can go out large tracts of land than the short distance inner projection and can have preferable image quality.
The liquid-crystal projecting displaying device of no matter single-lens or three-lens, all the white light that a projecting lamp is introduced must be isolated in design and can synthesize first of described white light, the second and the 3rd coloured light, by three default light valves described coloured light is carried out modulation respectively, therefore the path of being passed through by isolated three coloured light of described white light must be inequality, as for three coloured light behind the modulation, be with difference single-lens or the three-lens design, and in single-lens design, three coloured light are synthesized and send, or in the three-lens design, three coloured light are projected on the same projection screen to do video picture via three different camera lenses respectively by single camera lens projection video picture.
With regard to single-lens liquid-crystal projecting displaying device in the past, though it is existing at present different at making path that each coloured light is passed through, but the total kilometres in path that each coloured light is passed through distance all equates the design of (abbreviating aplanatism as to call in the following text), as No. 5644432 patent of invention of the U.S. be, in addition, company such as IBM, JVC also develops aplanatic single-lens liquid-crystal projecting displaying device.Because the relevant design of the single-lens formula liquid-crystal projecting displaying device of described light path illumination is not an improvement theme of the present invention, therefore no longer describes in detail at this.
In addition, for the discussion of three-lens liquid-crystal projecting displaying device in the past, do not see yet that at present each coloured light has aplanatic design, this type of does not have the visible three-lens projection display equipment 1 as shown in Figure 1 of aplanatic design, it is the light that a projecting lamp 11 is projected, roughly pass through a light filter 12 earlier with ultraviolet ray in the light and infrared ray filtering, only allow white light pass through, and via after oblique in regular turn forward every two spectroscopes of establishing 131,132 and one catoptron 133 deals with in advance, and at described spectroscope 131,132 with catoptron 133 in a side towards projecting lamp 11, dispose one respectively and extend lens 141,142,143, by described spectroscope 131,132 with catoptron 133 white light is isolated first in regular turn, second, the 3rd coloured light is (as indigo plant, green, red light), make each coloured light pass through condenser 151 respectively via different paths toward homonymy, 152,153 with Polarizer 161,162, after 163, projection enters first, second, the 3rd light valve 171,172,173 to carry out modulation, and each light valve 171,172,173 arrange in pairs or groups respectively at light output direction of all kinds is provided with corresponding camera lens 181,182,183, make each camera lens 181,182,183 by same planar projective go out behind the modulation each coloured light and on a projection screen 19 resultant image.Be separated as for described white light in the light path of specifically passing through of each coloured light, because the light that projecting lamp 11 is projected arrives at oblique every the spectroscope of establishing 131 back to front, spectroscope 132, the distance of catoptron 133 is near and far, and it is oblique every the spectroscope of establishing 131, spectroscope 132, catoptron 133 and first, second, the 3rd light valve 171,172,173 distance all equates, make aforementioned by white light institute isolated first, second, the 3rd coloured light arrives at each light valve 171 respectively from projecting lamp 11,172,173 and each camera lens 181,182,183 light path, be that first coloured light is the shortest, second coloured light is placed in the middle, the 3rd coloured light is the longest, therefore design is gone up for adapting to the light path difference of each coloured light, just at described spectroscope 131,132 dispose respectively towards projecting lamp 11 1 sides with catoptron 133 and to extend lens 141,142,143.
Relevant for the three-lens projection display equipment of the non-in the past aplanatism illumination that is disclosed among described Fig. 1, be simple synoptic diagram, other associated component is in fact still arranged, for example integral mirror, polar biased photoconverter (P/S converter) etc. do not explain at this.
The three-lens liquid-crystal projecting displaying device of described non-in the past aplanatism illumination, its existing shortcoming is three condensers 151,152,153 and inequality, and must dispose three different extension lens 141,142,143, so the employed assembly kind of single unit system is many.In addition, the setting of described extension lens 141,142,143, on light valve, be easy to generate field of illumination 191 as shown in Figure 2, should be normal square field of illumination originally, therefore necessity of improvement arranged but because of the malformation aberration in four corners causes uneven illumination even.
[summary of the invention]
The object of the present invention is to provide a kind of three-lens projection display equipment of aplanatism illumination, make by white light isolated three coloured light can be on three light valves with identical light path projection illumination, avoid must using and extend lens and cause the distortion of light shape to cause uneven illumination even because of aplanatism not.
Another object of the present invention is to provide a kind of three-lens projection display equipment of aplanatism illumination,, make design more easy, and can shorten the development and Design time to reduce the use kind of assembly.
For achieving the above object, the three-lens projection display equipment of aplanatism of the present invention illumination is characterized in comprising: first, second of one first spectroscope, one second spectroscope, at least one catoptron, three configured in parallel and the 3rd light valve; The white light of one projecting lamp being introduced by described first spectroscope, second spectroscope and catoptron is isolated first, second and the 3rd coloured light that can synthesize described white light, described first, second, third coloured light is passed through behind the light path of equidistance, and projection is gone into described first, second, third light valve to be subjected to modulation respectively; Described each light valve light output direction of all kinds arrange in pairs or groups respectively be provided with one in order to project each coloured light the camera lens of resultant image.
Adopt such scheme, can make it can avoid extending the even situation of uneven illumination that lens cause on light valve, more make single unit system can effectively reduce the use kind of assembly, make design more easy, and can shorten the development time because of using.
[description of drawings]
Be elaborated below in conjunction with the three-lens projection display equipment of drawings and Examples to aplanatism illumination of the present invention:
Fig. 1 is a kind of three-lens projection display equipment schematic top plan view of non-in the past aplanatism illumination;
Fig. 2 is that the three-lens projection display equipment of described non-in the past aplanatism illumination extends the synoptic diagram that lens produce the distortion of imagery zone light shape because of configuration;
Fig. 3 is the schematic perspective view of the three-lens projection display equipment of the present invention's first preferred embodiment aplanatism illumination;
Fig. 4 is the schematic top plan view of the present invention's first preferred embodiment;
Fig. 5 is the schematic side view of the present invention's first preferred embodiment;
Fig. 6 is the schematic perspective view of the three-lens projection display equipment of the present invention's second preferred embodiment aplanatism illumination;
Fig. 7 is the configuration schematic diagram of overlooking of the present invention's second preferred embodiment;
Fig. 8 is the side-looking configuration schematic diagram of a group of light valve, polar biased light prism and camera lens in the present invention's second preferred embodiment;
Fig. 9 be the present invention's the 3rd preferred embodiment aplanatism illumination the three-lens projection display equipment overlook configuration schematic diagram;
Figure 10 be the present invention's the 4th preferred embodiment aplanatism illumination the three-lens projection display equipment overlook configuration schematic diagram;
Figure 11 is the side-looking configuration schematic diagram of one group of light valve and camera lens in the present invention's the 4th preferred embodiment;
Figure 12 be the present invention's the 5th preferred embodiment aplanatism illumination the three-lens projection display equipment overlook configuration schematic diagram;
Figure 13 is the side-looking configuration schematic diagram of one group of light valve and camera lens in the present invention's the 6th preferred embodiment.
[embodiment]
Cooperate Fig. 3,4, shown in 5, be respectively the solid of the three-lens projection display equipment of the present invention's first preferred embodiment aplanatism illumination, overlook and schematic side view, the three-lens projection display equipment 2 of the aplanatism illumination of this preferred embodiment has one and is positioned at the projecting lamp 21 of left side in order to light source to be provided, light that described projecting lamp 21 is projected earlier through a light filter 22 with ultraviolet ray and infrared ray filtering, only allow white light pass through, the continuous integral mirror 23 that is provided with through a pair of interval is with the white light homogenising, change through a polar biased photoconverter 24 (P/S converter) again, make one first spectroscope 251 of white light by the predetermined configurations relation, one second spectroscope 252 and one first ~ the 4th catoptron 261 ~ 264, to isolate by the white light that projecting lamp 21 is introduced and to synthesize first of described white light, the second and the 3rd coloured light, make described first, second, the 3rd coloured light is passed through behind the light path of equidistance, first of three configured in parallel are gone in projection respectively, second, the 3rd light valve 271,272,273 to be subjected to modulation, make each light valve state that is triangularly arranged at grade, and each light valve 271,272,273 arrange in pairs or groups respectively at light output direction of all kinds is provided with a camera lens 281,282,283, each camera lens 281 relatively, 282,283 also are triangularly arranged, and can go out each coloured light behind the modulation and resultant image by same planar projective.
Three light valves 271 described in this preferred embodiment, 272, the 273rd, be the penetration liquid crystal light valve, at Fig. 3,4, in 5, with each camera lens 281 ~ 283 position is the place ahead, and camera lens 281 is to be positioned at the right side with respect to camera lens 282, and described projecting lamp 21 is to be positioned at the single unit system leftmost side, the directional reference of each assembly relative position is illustrated in the device as a whole, that is to say in the configuration, the white light of the aforementioned projection of being turned right is to isolate via described first spectroscope 251 of the oblique setting in the place ahead from left to right earlier to continue to turn right described first coloured light of one first light path 201 of passing through, and second of one second light path 202 of passing through forward, the 3rd coloured light, described first coloured light is passed through behind described first light path 201, pass through one the 3rd light path 203 and arrive at described first light valve 271 toward front-reflections via described first catoptron 261 parallel with aforementioned first spectroscope 251.In fact, before each coloured light arrives at each light valve 271,272,273,, indicate and explanation, treat as the light path that arrives at each light valve with the light path that each coloured light arrives at condenser 29 at this for convenient all earlier through a condenser 29.
And described second, the 3rd coloured light is passed through forward behind described second light path 202, isolate to turn left through described second spectroscope 252 that is anti-oblique configuration with aforementioned first spectroscope 251 again and pass through one the 4th light path 204 and arrive at described second coloured light of described second catoptron 262 arrives at described the 3rd catoptron 263 with passing through one the 5th light path 205 forward described the 3rd coloured light, described second coloured light is through second catoptron, 262 reflex times, be set in parallel with aforementioned second spectroscope 252 by described second catoptron 262, and passed through one the 6th light path 206 and arrive at described second light valve 272 toward front-reflection.
Described the 3rd coloured light is through the 3rd catoptron 263 reflex times, by described the 3rd catoptron 263 be by after the up oblique configuration in the place ahead, pass through one the 7th light path 207 and arrive at described the 4th catoptron 264 and the 3rd coloured light up reflected, described the 4th catoptron 264 is to be set in parallel in the 3rd catoptron 263 tops, and can pass through one the 8th light path 208 and arrive at described the 3rd light valve 273 toward front-reflection through described the 4th catoptron 264.
The distance of aforementioned described first light path 201, the 4th light path 204, the 7th light path 207 equates in the design, the distance of described the 3rd light path 203 equal second light path 202 and the 6th light path 206 apart from summation, the distance of described the 6th light path 206 equal the 5th light path 205 and the 8th light path 208 apart from summation.
At this for convenience of description,, represent with P1～P8 respectively the distance of first light path～the 8th light path 201～208, just:
P1＝P4＝P7，P3＝P2+P6，P6＝P5+P8
And conclude the light path statistics of first, second, third coloured light, be respectively:
First coloured light total optical path=P1+P3=P1+P2+P6=P4+P2+P6
Second coloured light total optical path=P2+P4+P6
The 3rd coloured light total optical path=P2+P5+P7+P8=P2+P7+ (P5+P8)=P2+P4+P6
Therefore, can learn by described result of calculation:
The first coloured light total optical path=second coloured light total optical path=the 3rd coloured light total optical path.
Because the light path that three coloured light are passed through in the display device 2 of this preferred embodiment all equates, make its three-lens projection display equipment compare with aforementioned non-in the past aplanatism illumination, really can reach the present invention and require the purpose that reaches, and can have following advantage:
1, can avoid using the extension lens to cause the distortion of light shape to cause uneven illumination even: in the three-lens projection display equipment of this preferred embodiment, three coloured light can be with identical light path projection illumination on three light valves, therefore needn't use as projection display equipment in the past because of three extension lens 141,142,143 that non-aplanatism disposed, extend the shortcoming that lens cause the distortion of light shape to cause uneven illumination to be spared and can avoid to use because of aplanatism not.
2, can effectively reduce the use kind of assembly: in this preferred embodiment because of three coloured light tool aplanatism design of Lighting, except that needn't using three different extension lens, three condensers 29 all can use identical assembly, but not as in the past three condensers 151,152,153 of projection display equipment all must adopt different assemblies, the design of the three-lens display device of this preferred embodiment aplanatism as can be known of comparing illumination, really obviously reduce the use kind of assembly, make design more easy, and can shorten the development and Design time.
Second preferred embodiment of the present invention such as Fig. 6,7, shown in 8, the three-lens projection display equipment 3 of this preferred embodiment aplanatism illumination has one and is positioned at the projecting lamp 31 of the place ahead in order to light source to be provided, the light that described projecting lamp 31 is projected is backward via light filter, integral mirror, polar biased photoconverter and send uniform white light equally correlated process, because it is roughly the same with described preferred embodiment, this no longer explaining more, described white light is by one first spectroscope 321 of predetermined configurations relation, one second spectroscope 322 and a catoptron 33, to isolate by the white light that projecting lamp 31 is introduced and to synthesize first of described white light, the second and the 3rd coloured light, make described first, second, the 3rd coloured light is passed through after the light path of equidistance arrives three corresponding condensers that are provided with separately, first of three configured in parallel are gone in projection respectively, second, the 3rd light valve 341,342,343 to be subjected to modulation, make each light valve be the arranged askew state at grade, and each light valve 341,342,343 are provided with a camera lens 351 in each collocation of light output direction of all kinds, 352,353, therefore each camera lens 351 relatively, 352,353 also are arranged askew, and go out each coloured light behind the modulation and resultant image by same planar projective.
What this needed do one explanation earlier be, three light valves the 341,342, the 343rd are optical valve in reflection type described in this preferred embodiment, and respectively be provided with a polar biased light prism 361,362,363 at each corresponding light valve 341,342,343 and 351,352,353 on camera lens that disposes respectively, make of the conversion of each light valve 341,342,343 by each polar biased light prism 361,362,363, make incident light 371 different, to carry out projection with the projected path of reflected light 372 (being found in Fig. 8).
In this preferred embodiment, as Fig. 6, shown in 7, projecting lamp 31 is to be positioned at the single unit system forefront, and each camera lens 351,352, the 353rd, be by the left back toward the right front arranged askew, the directional reference of each assembly relative position is illustrated in the device as a whole, that is to say in the configuration, described white light is described first coloured light of backward isolating one first light path 301 of backward passing through earlier via described first spectroscope 321 of the oblique configuration in rear from left to right, and second of one second light path 302 of passing through of turning right, the 3rd coloured light, make described first coloured light described first light path 301 of passing through arrive at 351 set polar biased light prisms 361 of the corresponding camera lens of described first light valve 341 after by a condenser with it, and described second, the 3rd coloured light is passed through behind described second light path 302, described second coloured light of isolating one the 3rd light path 303 of backward passing through through described second spectroscope 322 parallel and described the 3rd coloured light of one the 4th light path 304 of passing through of turning right again with described first spectroscope 321, make described second coloured light after described the 3rd light path 303 is by a condenser, just arrive at 351 set polar biased light prisms 362 of the corresponding camera lens of described second light valve 342 with it, be to arrive at and the parallel described catoptron 33 of described second spectroscope 322 behind described the 4th light path 304 and described the 3rd coloured light is passed through, arrive at 353 set polar biased light prisms 363 of the corresponding camera lens of described the 3rd light valve 343 by a condenser with it through described catoptron 33 retro-reflection one the 5th light path 305 of passing through.
In the design, the distance of aforementioned described first light path 301 equal second light path 302 and the 3rd light path 303 apart from summation, the distance of described the 3rd light path 303 equal the 4th light path 304 and the 5th light path 305 apart from summation.
At this for convenience of description, with the distance of first light path ~ the 5th light path 301 ~ 305, represent with P1 ~ P5 respectively equally, just:
P1＝P2+P3，P3＝P4+P5
And conclude the light path statistics of first, second, third coloured light, be respectively:
First coloured light total optical path=P1
Second coloured light total optical path=P2+P3=P1
The 3rd coloured light total optical path=P2+P4+P5=P2+P3=P1
Can learn by described result of calculation:
The first coloured light total optical path=second coloured light total optical path=the 3rd coloured light total optical path.
Therefore, the design of this preferred embodiment, make equally by white light isolated three coloured light can be on three light valves with identical light path projection illumination, avoid to use and extend lens and cause the distortion of light shape to cause uneven illumination even because of aplanatism not, and can reduce the use kind of assembly, make design more easy, and can shorten the development and Design time.
The 3rd preferred embodiment of the present invention as shown in Figure 9, wherein with the second preferred embodiment no longer explanation that exists together mutually, only described in detail at its difference, its difference is that the three-lens projection display equipment 4 of this preferred embodiment aplanatism illumination has one and is positioned at the projecting lamp 41 of the place ahead in order to light source to be provided, the white light that described projecting lamp 41 is projected is by one first spectroscope 421 of predetermined configurations relation, one second spectroscope 422, one first catoptron 431 and one second catoptron 432, white light is isolated first, the second and the 3rd coloured light, make described first, second, the 3rd coloured light is passed through behind the light path of equidistance, first of three configured in parallel are gone in projection respectively, second, the 3rd light valve 441,442,443 to be subjected to modulation, and each light valve 441,442,443 are provided with a camera lens 451 in each collocation of light output direction of all kinds, 452,453, make each camera lens 451,452,453 are triangularly arranged, and go out each coloured light behind the modulation and resultant image by same planar projective.
In addition, describedly also all be provided with a polar biased light prism 461,462,463 for each light valve 441,442,443 of optical valve in reflection type and 451,452,453 on pairing camera lens.
White light described in this preferred embodiment is earlier to isolate described first coloured light of one first light path 401 of passing through of turning right via described first spectroscope 421 of the oblique configuration in rear from left to right backward, and second of one second light path 402 of backward passing through, the 3rd coloured light, described first coloured light is passed through behind described first light path 401, through passing through one the 3rd light path 403 and arrive at 451 set polar biased light prisms 461 of described first light valve 441 and its corresponding camera lens with parallel described first catoptron, 431 retro-reflection of described first spectroscope 421, and described second, the 3rd coloured light is passed through behind described second light path 402, again through being described second spectroscope 422 of anti-oblique configuration with described first spectroscope 421, described second coloured light of isolating one the 4th light path 404 of backward passing through and described the 3rd coloured light of one the 5th light path 405 of passing through of turning left, make described second coloured light behind described the 4th light path 404, just arrive at 452 set polar biased light prisms 462 of the corresponding camera lens of described second light valve 442 with it, be to arrive at and parallel described second catoptron 432 of described second spectroscope 422 behind described the 5th light path 405 and described the 3rd coloured light is passed through, pass through one the 6th light path 406 and arrive at 453 set polar biased light prisms 463 of the corresponding camera lens of described the 3rd light valve 443 with it through described second catoptron, 432 retro-reflection.
In the design, the distance that described first light path 401 adds the 3rd light path 403 equals the distance that second light path 402 adds the 4th light path 404, and the distance of described the 4th light path 404 equals the distance that the 5th light path 405 adds the 6th light path 406.
P1+P3=P2+P4 just, P4=P5+P6
Conclude the light path statistics of first, second, third coloured light, be respectively:
First coloured light total optical path=P1+P3=P2+P4
Second coloured light total optical path=P2+P4
The 3rd coloured light total optical path=P2+P5+P6=P2+P4
Can learn by described result of calculation:
The first coloured light total optical path=second coloured light total optical path=the 3rd coloured light total optical path.
The 4th preferred embodiment of the present invention as shown in figure 10, difference shown in Figure 7 in this preferred embodiment and aforementioned second preferred embodiment, be to be that first, second, third light valve 541,542,543 is to use oblique optical valve in reflection type in this preferred embodiment, make when being oblique incident light relatively and throwing light on each light valve, can make incident light produce the different reflected light in path, and directly its corresponding camera lens is gone in projection through each light valve reflection.
Each light valve 541 in this preferred embodiment, 542, the 543rd, adopt digital micro-mirror light valve (DMD), and need not to be provided with each polar biased light prism 361 shown in aforementioned second preferred embodiment, 362,363, as for light valve described in this preferred embodiment 541,542, the camera lens 551 of 543 settings of arranging in pairs or groups, 552,553, and projecting lamp 51, first spectroscope 521, second spectroscope 522, the position configuration of catoptron 53 assemblies such as grade, all with second preferred embodiment disclosed identical, and can be as shown in figure 11, make each incident light 571 that ought be oblique relatively described first of digital micro-mirror light valve (DMD) that is made as that throws light on respectively, second, the 3rd light valve 541,542,543 o'clock, the usable reflection light 572 that can make each incident light 571 is with corresponding to camera lens 551,552, the parallel direction of 553 optical axises enters each camera lens 551,552,553, invalid reflected light 573 can't enter each camera lens 551,552,553.
As in this preferred embodiment relevant for the situation of the equivalent optical path of each coloured light because also identical, no longer illustrate at this with the analysis explanation in second preferred embodiment.
As shown in figure 12, be the present invention's the 5th preferred embodiment aplanatism illumination three-lens projection display equipment 6 overlook configuration schematic diagram, difference shown in Figure 9 in this preferred embodiment and aforementioned the 3rd preferred embodiment, be to be in this preferred embodiment first, second, the 3rd light valve 641,642, the 643rd, be digital micro-mirror light valve (DMD), and need not to be provided with each polar biased light prism 461 in the 3rd preferred embodiment, 462,463, as for light valve described in this preferred embodiment 641,642, the camera lens 651 of 643 settings of arranging in pairs or groups, 652,653, and projecting lamp 61, first spectroscope 621, second spectroscope 622, first catoptron 631, the position configuration of second catoptron, 632 assemblies such as grade, all with the 3rd preferred embodiment disclosed identical, make described first of the digital micro-mirror light valve (DMD) that is made as of each incident light illumination that ought be oblique relatively, second, the 3rd light valve 641,642,643 o'clock, can make the usable reflection light of each incident light enter each camera lens with the parallel direction corresponding to each camera lens optical axis equally, invalid reflected light can't enter each camera lens.
As shown in figure 13, it is the side-looking configuration schematic diagram of one group of light valve 71 and camera lens 72 in the three-lens projection display equipment of the present invention's the 6th preferred embodiment aplanatism illumination, this preferred embodiment and the described the 4th, five preferred embodiments are the same, also be to adopt oblique beam lighting being made as each light valve 71 of optical valve in reflection type, but each light valve 71 of this preferred embodiment is to be oblique reflective liquid crystal light valve, allow each incident light 73 directly produce the different reflected light 74 in path by this through each light valve 71 reflection, carry out projection to enter each camera lens 72, therefore configuration go up each camera lens 72 must with each light valve 71 parallel suitable distance that are misplaced, make each reflected light 74 can enter each camera lens 72 smoothly.
More as can be known, the design meeting of aforementioned fourth, fifth preferred embodiment is than the comparatively flattening of volume of the whole display device of this preferred embodiment.
Take a broad view of described, the three-lens projection display equipment of the aplanatism illumination that above each preferred embodiment of the present invention is provided, by white light isolated three coloured light can be on three light valves with identical light path projection illumination, can only not avoid to use and extend lens and cause the distortion of light shape to cause the even shortcoming of uneven illumination because of aplanatism not, more allow single unit system can effectively reduce the use kind of assembly, make design more easily to shorten the development and Design time, so very practical really and progressive.
Claims (8)
1, the three-lens projection display equipment of a kind of aplanatism illumination is characterized in that comprising: first, second of one first spectroscope, one second spectroscope, at least one catoptron, three configured in parallel and the 3rd light valve; The white light of one projecting lamp being introduced by described first spectroscope, second spectroscope and catoptron is isolated first, second and the 3rd coloured light that can synthesize described white light, described first, second, third coloured light is passed through behind the light path of equidistance, and projection is gone into described first, second, third light valve to be subjected to modulation respectively; Described each light valve light output direction of all kinds arrange in pairs or groups respectively be provided with one in order to project each coloured light the camera lens of resultant image.
2, the three-lens projection display equipment of aplanatism illumination according to claim 1, it is characterized in that: described first, second, third light valve is to be triangularly arranged at grade and all is perforation light-valve, described white light is isolated described first coloured light of one first light path of passing through earlier via described first spectroscope of oblique setting, and second, third coloured light of one second light path of passing through, described first coloured light is passed through behind described first light path, pass through one the 3rd light path and arrive at described first light valve via first mirror reflects parallel with aforementioned first spectroscope; And described second, third coloured light is passed through behind described second light path, isolate described second coloured light of passing through one the 4th light path and arriving at one second catoptron arrives at one the 3rd catoptron with passing through one the 5th light path described the 3rd coloured light through described second spectroscope that is anti-oblique configuration with aforementioned first spectroscope again, described second coloured light is when second mirror reflects, be set in parallel by described second catoptron and described second spectroscope, pass through one the 6th light path and arrive at described second light valve and be reflected; Described the 3rd coloured light is when the 3rd mirror reflects, by the oblique configuration of described the 3rd catoptron, pass through one the 7th light path and arrive at the 4th catoptron that is set in parallel in described the 3rd catoptron top and be reflected, pass through one the 8th light path and arrive at described the 3rd light valve through described the 4th mirror reflects; The distance of described first light path, the 4th light path, the 7th light path equates, the distance of described the 3rd light path equal second light path and the 6th light path apart from summation, the distance of described the 6th light path equal the 5th light path and the 8th light path apart from summation.
3, the three-lens projection display equipment of aplanatism illumination according to claim 1, it is characterized in that: described first, second, third light valve is to be the oblique line spread in isoplanar and all is optical valve in reflection type, and between each corresponding light valve that disposes and camera lens, all be provided with a polar biased light prism respectively, make of the conversion of each light valve, make incident light different with catoptrical projected path to carry out projection by polar biased light prism; And described white light is described first coloured light of isolating one first light path of passing through earlier via described first spectroscope of oblique configuration, and second of one second light path of passing through, the 3rd coloured light, described first coloured light is passed through arrive at polar biased light prism set between the corresponding camera lens of described first light valve behind described first light path with it, and described second, the 3rd coloured light is passed through behind described second light path, isolate described second coloured light of one the 3rd light path of passing through and described the 3rd coloured light of one the 4th light path of passing through through described second spectroscope parallel again with described first spectroscope, make described second coloured light through just arriving at polar biased light prism set between the corresponding camera lens of described second light valve behind described the 3rd light path with it, arrive at behind described the 4th light path and described the 3rd coloured light is passed through one with the parallel catoptron of described second spectroscope, pass through one the 5th light path and arrive at polar biased light prism set between the corresponding camera lens of described the 3rd light valve through described mirror reflects with it; The distance of described first light path equal second light path and the 3rd light path apart from summation, the distance of described the 3rd light path equal the 4th light path and the 5th light path apart from summation.
4, the three-lens projection display equipment of aplanatism illumination according to claim 1, it is characterized in that: described first, second, third light valve is to be the isoplanar rounded projections arranged and all is optical valve in reflection type, and between each corresponding light valve that disposes and camera lens, all be provided with a polar biased light prism respectively, make of the conversion of each light valve, make incident light different with catoptrical projected path to carry out projection by polar biased light prism; And described white light is isolated described first coloured light of one first light path of passing through via described first spectroscope of oblique configuration, and second of one second light path of passing through, the 3rd coloured light, described first coloured light is passed through behind described first light path, pass through one the 3rd light path with parallel first mirror reflects of described first spectroscope and arrive at set polar biased light prism between described first light valve and its corresponding camera lens through one, and described second, the 3rd coloured light is passed through behind described second light path, warp is isolated described second coloured light of one the 4th light path of passing through and described the 3rd coloured light of one the 5th light path of passing through with described second spectroscope that described first spectroscope is anti-oblique configuration again, make described second coloured light through just arriving at polar biased light prism set between the corresponding camera lens of described second light valve behind described the 4th light path with it, arrive at second catoptron parallel and described the 3rd coloured light is passed through behind described the 5th light path, pass through one the 6th light path and arrive at polar biased light prism set between the corresponding camera lens of described the 3rd light valve with it through described second mirror reflects with described second spectroscope; The distance that described first light path adds the 3rd light path equals the distance that second light path adds the 4th light path, and the distance of described the 4th light path equals the distance that the 5th light path adds the 6th light path.
5, the three-lens projection display equipment of aplanatism illumination according to claim 1, it is characterized in that: described first, second, third light valve is to be the oblique line spread in isoplanar and all is oblique optical valve in reflection type, make when being oblique incident light relatively and throwing light on each light valve, can make incident light produce the different reflected light in path, and directly its corresponding camera lens is gone in projection through each light valve reflection; And described white light is described first coloured light of isolating one first light path of passing through via described first spectroscope of oblique configuration, and second of one second light path of passing through, the 3rd coloured light, described first coloured light is passed through arrive at described first light valve behind described first light path, and described second, the 3rd coloured light is passed through behind described second light path, isolate described second coloured light of one the 3rd light path of passing through and described the 3rd coloured light of one the 4th light path of passing through through described second spectroscope parallel again with described first spectroscope, make described second coloured light behind described the 3rd light path, just arrive at described second light valve, arrive at behind described the 4th light path and described the 3rd coloured light is passed through one with the parallel catoptron of described second spectroscope, pass through one the 5th light path and arrive at described the 3rd light valve through described mirror reflects; The distance of described first light path equal second light path and the 3rd light path apart from summation, the distance of described the 3rd light path equal the 4th light path and the 5th light path apart from summation.
6, the three-lens projection display equipment of aplanatism illumination according to claim 1, it is characterized in that: described first, second, third light valve is to be the isoplanar rounded projections arranged and all is oblique optical valve in reflection type, make when being oblique incident light relatively and throwing light on each light valve, can make incident light produce the different reflected light in path, and directly its corresponding camera lens is gone in projection through each light valve reflection; And described white light is described first coloured light of isolating one first light path of passing through earlier through described first spectroscope of oblique configuration, and second of one second light path of passing through, the 3rd coloured light, described first coloured light is passed through behind described first light path, pass through one the 3rd light path and arrive at described first light valve through first mirror reflects parallel with described first spectroscope, and described second, the 3rd coloured light is passed through behind described second light path, warp is isolated described second coloured light of one the 4th light path of passing through and described the 3rd coloured light of one the 5th light path of passing through with described second spectroscope that described first spectroscope is anti-oblique configuration again, make described second coloured light behind described the 4th light path, just arrive at described second light valve, arrive at second catoptron parallel and described the 3rd coloured light is passed through behind described the 5th light path, after described second mirror reflects, pass through one the 6th light path and arrive at described the 3rd light valve with described second spectroscope; The distance that described first light path adds the 3rd light path equals the distance that second light path adds the 4th light path, and the distance of described the 4th light path equals the distance that the 5th light path adds the 6th light path.
7, as the three-lens projection display equipment of aplanatism illumination as described in claim 5 or 6, it is characterized in that: described first, second, third light valve is to be the digital micro-mirror light valve.
8, as the three-lens projection display equipment of aplanatism illumination as described in claim 5 or 6, it is characterized in that: but described first, second, third light valve is the reflective liquid crystal light valve for oblique incidence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131262 CN1403846A (en) | 2001-08-31 | 2001-08-31 | Aplanatic lighted three-lens projecting display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01131262 CN1403846A (en) | 2001-08-31 | 2001-08-31 | Aplanatic lighted three-lens projecting display |
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| Publication Number | Publication Date |
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| CN1403846A true CN1403846A (en) | 2003-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01131262 Pending CN1403846A (en) | 2001-08-31 | 2001-08-31 | Aplanatic lighted three-lens projecting display |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7828444B2 (en) | 2006-09-21 | 2010-11-09 | Coretronic Corporation | Projection apparatus |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
| CN106802534A (en) * | 2017-04-11 | 2017-06-06 | 河北农业大学 | Bidirectional projector |
-
2001
- 2001-08-31 CN CN 01131262 patent/CN1403846A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7828444B2 (en) | 2006-09-21 | 2010-11-09 | Coretronic Corporation | Projection apparatus |
| CN104142605A (en) * | 2014-07-14 | 2014-11-12 | 深圳雅图数字视频技术有限公司 | Projector |
| CN106802534A (en) * | 2017-04-11 | 2017-06-06 | 河北农业大学 | Bidirectional projector |
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