CN102236171A - Novel optical device for projection and projection display system applying same - Google Patents
Novel optical device for projection and projection display system applying same Download PDFInfo
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- CN102236171A CN102236171A CN2011101862064A CN201110186206A CN102236171A CN 102236171 A CN102236171 A CN 102236171A CN 2011101862064 A CN2011101862064 A CN 2011101862064A CN 201110186206 A CN201110186206 A CN 201110186206A CN 102236171 A CN102236171 A CN 102236171A
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Abstract
The invention discloses a projection lamp or an optical device, which comprises an integrally formed mirror reflector. The mirror reflector comprises a first focus and a second focus, wherein when lamp arc of a light source is positioned on the first focus, the light emitted by the lamp arc of the light source is internally reflected through the mirror reflector and converged on the second focus to form a lamp arc image on the position of the second focus; and the size of the lamp arc image is in accordance with that of the lamp arc, so that the light emitted by the lamp arc image can be directly processed by using a lens group or a light bar. Therefore, the projection lamp has the characteristics of long service life, little radiation and the like.
Description
[technical field]
The present invention relates to optical field, especially relate to optical devices and use the projection display system of these optical devices.
[background technology]
Ultrahigh pressure mercury lamp UHP (Ultra High Performance) uses more a kind of light source of projection display system at present.Figure 1A shows a kind of structural representation of traditional UHP projection lamp.Shown in Figure 1A, described UHP projection lamp comprises parabolic reflector 120 and is positioned at lamp arc 110 on the focus of parabolic reflector 120, with the form outgoing near directional light, the inside surface of wherein said parabolic reflector 120 is a parabolic reflector to the light that described lamp arc 110 sends through the reflection of parabolic reflector 120.
Figure 1B is the optical principle synoptic diagram of the UHP projection lamp shown in Figure 1A.Shown in Figure 1B, because there is length in lamp arc 110, the light that makes part beyond the focus send can not be converged to directional light by polished object reflector 120, and focal point far away more disperse big more.Consider the reflection case of Y=2f height, as Figure 1B, have: tan (θ
1/2)=d/4f, wherein f is the focal length of parabolic reflector, d is a lamp arc length degree, the angle of divergence when θ is Y=2f.As lamp arc length degree d=1mm, during the focal distance f of parabolic reflector=6.6mm, calculating can get θ
1/2=2.17 °, then for the UHP projection lamp of 65mm*70mm bore, propagation Etendue=π Asin
2(θ
1/2)=3.14*4550*sin
2(2.17 °)=20.5.
Along with the prolongation of service time, lamp arc 110 can be elongated gradually, and the convergence of light variation thereupon.Because the quadratic relationship of Etendue and angle of divergence θ, it is very big that the Etendue value can become.Fig. 1 C is the lamp arc length of the UHP projection lamp shown in Figure 1A curve synoptic diagram to luminous flux.Shown in Fig. 1 C, when lamp arc length degree is 1mm, θ
1/2=2.17 °, Etendue is 20.5, and luminous flux is approximately 6000Lumens; When lamp arc length degree is 1.8mm, θ
1/2=3.9 °, Etendue increases to 66, and luminous flux is about Lumens more than 3000, brightness have only the initial stage half.Like this, the life-span of described traditional UHP projection lamp also can be shorter, generally all about 3000 hours.
Therefore, wish to propose a kind of improved projection lamp scheme and overcome the problems referred to above.
[summary of the invention]
One of purpose of the present invention is to provide a kind of improved optical devices that can be used for projection display system.
Two of purpose of the present invention is to provide a kind of projection display system that uses above-mentioned optical devices.
In order to address the above problem, according to an aspect of the present invention, the invention provides a kind of optical devices, it comprises integrated mirror reflection device.Described mirror reflection utensil has first focus and second focus, when the lamp arc of a light source is positioned on described first focus, the light that the lamp arc of described light source sends converges on second focus through after the internal reflection of described mirror reflection device, and at second focus place formation lamp arc picture, described lamp arc picture is consistent with lamp arc size.
Further, described mirror reflection device comprise first reflecting part and with second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is a paraboloidal part, described first reflecting part and second reflecting part big or small consistent, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
Further, described mirror reflection device comprises first reflecting part and second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is different paraboloidal parts, more described first reflecting part of described second reflecting part is big, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
Further, it also includes the Reflex Reflector with a focus, described Reflex Reflector has spherical reflective surface will, itself and described mirror reflection device are staggered relatively, the lamp arc of described light source also is positioned on the focus of described Reflex Reflector simultaneously, described light source projects to the light of described Reflex Reflector is converged to first focus again through after the reflection of described Reflex Reflector, is projected onto once more subsequently on the described mirror reflection device.
Further, it also includes extender lens group and compound eye lens group, and described extender lens group is used for the light from described lamp arc picture is expanded bundle, is coupled to compound eye lens group afterwards and spares optical processing.Further, described extender lens group is a rod-shaped lens.
According to a further aspect in the invention, the present invention also provides a kind of optical devices, and it comprises integrated mirror reflection device, Reflex Reflector and light source.Described mirror reflection utensil has first focus and second focus, when the lamp arc of described light source is positioned on described first focus, the light that the lamp arc of described light source sends converges on second focus through after the internal reflection of described mirror reflection device, and at second focus place formation lamp arc picture, described lamp arc picture is consistent with lamp arc size, described Reflex Reflector has spherical reflective surface will, it has a focus, and it is staggered relatively with described mirror reflection device, the lamp arc of described light source also is positioned on the focus of described Reflex Reflector simultaneously, described light source projects to the light of described Reflex Reflector is converged to first focus again through after the reflection of described Reflex Reflector, is projected onto once more subsequently on the described mirror reflection device.
Further, described mirror reflection device comprise first reflecting part and with second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is a paraboloidal part, described first reflecting part and second reflecting part big or small consistent, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
Further, described mirror reflection device comprises first reflecting part and second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is different paraboloidal parts, more described first reflecting part of described second reflecting part is big, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
According to a further aspect in the invention, the invention provides a kind of projection display system, it comprises: send mixed white light optical devices, generate the light engine of optical imagery and the projection lens that described optical imagery is carried out projection based on described mixed white light and data image.Described optical devices comprise integrated mirror reflection device, Reflex Reflector and light source.Described mirror reflection utensil has first focus and second focus, when the lamp arc of described light source is positioned on described first focus, the light that the lamp arc of described light source sends converges on second focus through after the internal reflection of described mirror reflection device, and at second focus place formation lamp arc picture, described lamp arc picture is consistent with lamp arc size, described Reflex Reflector has spherical reflective surface will, it has a focus, and it is staggered relatively with described mirror reflection device, the lamp arc of described light source also is positioned on the focus of described Reflex Reflector simultaneously, described light source projects to the light of described Reflex Reflector is converged to first focus again through after the reflection of described Reflex Reflector, is projected onto once more subsequently on the described mirror reflection device.
Further, described light engine comprises LCOS device or LCD panel.
Compared with prior art, adopt described mirror reflection device can obtain and lamp arc lamp arc of the same size picture in the present invention, thereby can use lens combination or optical wand directly to handle the light that the lamp arc looks like to send, thereby make said projection lamp have life-span length, disperse characteristics such as little.
About other purposes of the present invention, feature and advantage are described in detail in embodiment below in conjunction with accompanying drawing.
[description of drawings]
In conjunction with reaching ensuing detailed description with reference to the accompanying drawings, the present invention will be more readily understood, the structure member that wherein same Reference numeral is corresponding same, wherein:
Figure 1A shows a kind of structural representation of traditional UHP projection lamp;
Figure 1B is the optical principle synoptic diagram of the UHP projection lamp shown in Figure 1A;
Fig. 1 C is the lamp arc length of the UHP projection lamp shown in Figure 1A synoptic diagram to luminous flax curve;
Fig. 2 is the projection lamp structural representation in one embodiment among the present invention;
Fig. 3 A is the structural representation of projection lamp in the first application example among Fig. 2;
Fig. 3 B is the structural representation of projection lamp in the second application example among Fig. 2;
Fig. 3 C is the structural representation of projection lamp in the 3rd application example among Fig. 2;
Fig. 4 is the projection lamp structural representation in another embodiment among the present invention;
Fig. 5 is the light decay curve contrast synoptic diagram of projection lamp among the present invention and existing projection lamp;
Fig. 6 is the lamp arc length of projection lamp among the present invention and the existing projection lamp contrast synoptic diagram to luminous flax curve;
Fig. 7 is for adopting the LCD projection display system structural representation in one embodiment of the projection lamp among the present invention; With
Fig. 8 is for adopting the LCOS projection display system structural representation in one embodiment of the projection lamp among the present invention.
[embodiment]
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Detailed description of the present invention mainly presents by program, step, logical block, process or other symbolistic descriptions, the running of the technical scheme among its direct or indirect simulation the present invention.Affiliated those of skill in the art use these descriptions herein and state that the others skilled in the art in affiliated field effectively introduce their work essence.
Alleged herein " embodiment " or " embodiment " are meant that special characteristic, structure or the characteristic relevant with described embodiment can be contained at least one implementation of the present invention at least.Different local in this manual " in one embodiment " that occur also nonessentially all refer to same embodiment, must not be yet with other embodiment mutually exclusive separately or select embodiment.In addition, represent the sequence of modules in method, process flow diagram or the functional block diagram of one or more embodiment and revocablely refer to any particular order, also be not construed as limiting the invention.
The projection lamp of mentioning herein not only can be used for projection, also can be used for other any field, therefore also described projection lamp can be called optical devices or lamp.Yet optical devices herein are not certain expression projection lamp, can represent the optical component in the projection lamp, such as the mirror reflection device yet.
Fig. 2 shows projection lamp 200 structural representation in one embodiment among the present invention.Described projection lamp 200 comprises light source 210, mirror reflection device 220 and Reflex Reflector 230.
Described light source 210 can be arc lamps such as mercury lamp, xenon lamp or metal halid lamp.
Described mirror reflection device 220 is one-body molded, and its inside surface is a reflective surface will, and light can be reflected after projecting on the described mirror reflection device.Described reflective surface will can be reflective coating, such as aluminium or mercury coating.Described mirror reflection device 220 has first focus 221 and second focus 222 relative with first focus, the lamp arc of described light source 210 approximately is positioned on described first focus 221, the light that described light source 210 sends converges on second focus 222 through after the internal reflection of described mirror reflection device 220, can form the lamp arc picture of described light source 210 like this at second focus, 222 places.
In one embodiment, described mirror reflection device 220 comprises the first reflecting part 220a and the second reflecting part 220b, the interior reflective surface of the described first reflecting part 220a and the second reflecting part 220b is a paraboloidal part, the described first reflecting part 220a and the second reflecting part 220b's is big or small consistent, described first focus 221 is in the described first reflecting part 220a, one side, described second focus 222 is in the second reflecting part 220b, one side, the light that described light source 210 sends through the reflection of the first reflecting part 220a after parallel projection to the second reflecting part 220b, the second reflecting part 220b converges to the light of parallel incident on second focus 222 again.
Described Reflex Reflector 230 is spherical reflective surface will for inside surface, and it has a focus.Described Reflex Reflector 230 and described mirror reflection device 220 are staggered relatively, the lamp arc of described light source 210 also is positioned on the focus of described Reflex Reflector 230 simultaneously, the light that described light source 210 is projected to described Reflex Reflector 230 is converged to first focus 221 again through after the reflection of described Reflex Reflector 230, is projected onto once more subsequently on the described mirror reflection device 220.
Like this, be positioned at nearly all energy that described lamp arc on described second focus 222 has looked like to comprise the lamp arc of described light source 210, and size is consistent with the lamp arc of light source 210.So just can use lens combination or optical wand directly to handle the light that the lamp arc looks like to send, thereby reach the purpose of dispersing that keeps less.
Fig. 3 A is the structural representation of projection lamp 200 in the first application example among Fig. 2.As shown in Figure 3A, described projection lamp 200 also further includes extender lens group 310 and compound eye lens group 320.Described extender lens group 310 is used for the light from described lamp arc picture is expanded bundle, is coupled to compound eye lens group 320 afterwards and spares optical processing.In this example, described extender lens group 310 object space NA (NA=n*sin (u))＜0.55 (convergent pencil of rays＜66.5 °), they can use the manufacturing of ordinary optical glass, look like that to the lamp arc certain operating distance is arranged, and can avoid the influence of high temperature as far as possible.
Fig. 3 B is the structural representation of projection lamp 200 in the second application example among Fig. 2.Shown in Fig. 3 B, described projection lamp 200 also further includes extender lens group 330 and compound eye lens group 340.Described extender lens group 330 is used for the light from described lamp arc picture is expanded bundle, is coupled to compound eye lens group 340 afterwards and spares optical processing.In this example, described extender lens group 330 is a rod-shaped lens, can more close lamp arc picture, and NA can be bigger, and convergent pencil of rays may reach 90.Owing to rod-shaped lens is required to tolerate high temperature, therefore can not use ordinary optical glass.
Fig. 3 C is the structural representation of projection lamp 200 in the 3rd application example among Fig. 2.Shown in Fig. 3 C, described projection lamp 200 also further includes lens 350 and optical tunnel 360.The light of the described lamp arc picture of described lens 350 guiding is to described optical tunnel 360.
Use design good extender lens group or optical tunnel, if the lamp arc length degree of described light source 210 is 1mm, the length of lamp arc picture also is 1mm so, described lamp arc is looked like to expand bundle, the angle of divergence (θ
1/2) generally below 1 °, when the lamp arc of described light source 210 looked like to be lost to 1.8mm, the length of described lamp arc picture also was 1.8mm, this moment the angle of divergence (θ
1/2) also can be below 1.5 °.Expand bundle so to the output bore (65mm*70mm) that is equal to the UHP projection lamp, when lamp arc length degree is 1mm, calculates its propagation Etendue and be:
Etendue＝πAsin
2(θ
1/2)＝3.1416*4550*sin
2(1°)＝4.35，
As seen Etendue has only 1/5 of existing UHP projection lamp.
Even after the lamp arc is lost to 1.8mm, its Etendue is:
Etendue＝πAsin
2(θ
1/2)＝3.1416*4550*sin
2(1.5°)＝9.8，
As seen Etendue is still less than the initial value that has the UHP projection lamp now.
Fig. 4 shows projection lamp 400 structural representation in another embodiment among the present invention.Described projection lamp 400 comprises light source 410, mirror reflection device 420 and Reflex Reflector 430 equally.Projection lamp 400 shown in Fig. 4 is with the difference of the projection lamp 200 shown in Fig. 2: the mirror reflection device 420 of projection lamp 400 is different with the mirror reflection device 220 of projection lamp 200.Described mirror reflection device 420 is one-body molded, it comprises the first reflecting part 420a and the second reflecting part 420b equally, the interior reflective surface of the described first reflecting part 420a and the second reflecting part 420b is different paraboloidal parts, and the more described first reflecting part 420a of the described second reflecting part 420b is big.Described mirror reflection device 420 has first focus 421 and second focus 422, first focus 421 is in the described first reflecting part 420a, one side, second focus 422 is in the second reflecting part 420b, one side, the light that described light source 410 sends through the reflection of the first reflecting part 420a after parallel projection to the second reflecting part 420b, the second reflecting part 420b converges to the light of parallel incident on second focus 422 again.Described second focus 422 and first focus 421 are separated by a distance on perpendicular to described parallel direction of light.
Fig. 5 is the light decay curve contrast synoptic diagram of projection lamp among the present invention and existing projection lamp, and wherein dotted line is represented the light decay curve of existing projection lamp, and solid line is represented the light decay dotted line of projection lamp among the present invention.As can be seen, when light decay was scheduled in arrival, existing projection lamp needed 3000 hours, and the projection lamp among the present invention then needed more than 10000 hours, and this has improved the life-span of projection lamp greatly.
Fig. 6 is the lamp arc length of the projection lamp among the present invention and the existing projection lamp contrast synoptic diagram to luminous flax curve, and wherein the dotted line lamp arc length representing to have projection lamp now is to luminous flax curve, and solid line represents that the lamp arc length of projection lamp among the present invention is to luminous flax curve.As can be seen, when lamp arc length degree was 1mm, the luminous flux of existing projection lamp was approximately 6000Lumens, and the luminous flux of the projection lamp among the present invention is approximately 6500; When lamp arc length degree was 1.8mm, the luminous flux of existing projection lamp was reduced to and is about Lumens more than 3000, brightness have only the initial stage half, the luminous flux of the projection lamp among the present invention still be about 6500, it is very little that brightness changes.Life-span of the projection lamp among the present invention like this, equally can rise appreciably.
Mirror reflection mirror among the present invention is one-body molded, manufactures fairly simple.
Fig. 7 schematically shows an embodiment of LCD (liquid crystal display the is called for short LCD) projection display system 700 that has adopted the projection lamp among the present invention.Described projection display system 700 includes light supply apparatus 720, light engine 740, projection lens 760 and screen (or being referred to as display screen) 780.
Described light supply apparatus 720 can be any embodiment of the described projection lamp among the present invention, and it can be with generating white light 701, and described white light 701 is imported in the described light engine 740.Described light engine 740 comprises color separation guide mirror assembly, three display panels 746,747,748 and optical prism assembly (optical prism assembly) 749.In the described display panels 746,747 and 748 each is responsible for being projected to a kind of color in the three primary colors of the image on the screen 780.Described white light 701 enters the color separation guide mirror assembly.Described color separation guide mirror assembly is separated into the primaries that comprises ruddiness, green glow and blue light with described white light 701, and each primitive color light is directed to corresponding display panels.(be the image of data sense this moment based on input picture, the abbreviation data image) the Pixel Information and the primitive color light of incident, Video Controller (not shown) is modulated described display panels 746,747 and 748 respectively and is generated three primary colors image (abbreviate optical imagery for the image of optical significance this moment).Described optical prism assembly 749 is combined into full-colour image 708 with described three primary colors image sets, and described full-colour image 708 is projected to described projection lens 760.Described projection lens 760 is with described full-colour image 708 direct or indirect being projected on the screen 780.
In the embodiment show in figure 7, display panels 746 is responsible for being projected to the green of the image on the screen 780, and display panels 747 is responsible for the blueness of described image, and display panels 748 is responsible for the redness of described image.Described color separation guide mirror assembly comprises 741,742 and 743, two catoptrons 744 and 745 of three different dichronic mirrors.Described dichronic mirror 741 is used for optionally seeing through green glow 702, and reflection includes residue (purple) light 703 of ruddiness and blue light.Subsequently, the green glow 702 that passes dichronic mirror 741 reflexes to described display panels 746 via catoptron 744.Simultaneously, the described purple light 703 of described dichronic mirror 742 interceptions optionally see through ruddiness 704 and other high wavelength light (such as infrared light), and reflect blue 705 is to described display panels 747.In addition, described dichronic mirror 743 separates ruddiness 706, and described ruddiness 706 is reflexed to described catoptron 745, and described catoptron 745 reflexes to described display panels 748 with described ruddiness 706 again.Based on the image pixel information of input, the described display panels 746 of Video Controller (not shown) modulation generates green image, modulates described display panels 747 and generates blue image, modulates described display panels 748 and generates red image.Described optical prism assembly 749 is combined into full-colour image 708 with described three primary colors image sets, and described full-colour image 708 is projected to described projection lens 760.
In other embodiments, can arbitrarily adjust the spectroscopic behaviour of three different dichronic mirrors 741,742 and 743, as long as can produce primaries by them, such as making dichronic mirror 741 see through blue light, and make dichronic mirror 742 reflection red lights, dichronic mirror 743 reflect blue light, along with the change of the spectroscopic behaviour of dichronic mirror, the primary colors of described display panels 746,747 and the 748 described images of being responsible for also can change thereupon.
Owing to adopted the projection lamp light source package of the present invention's proposition, can increase the life-span of described LCD projection display system 700.
Fig. 8 schematically shows an embodiment of LCOS (Liquid Crystal On Silicon is called for short LCOS) projection display system 800.Described projection display system 800 includes light supply apparatus 820, light engine 840, projection lens 860 and screen (or being referred to as display screen) 880.
Described light supply apparatus 820 can be any embodiment of the described projection lamp among the present invention, and it can be with generating white light 801, and described white light 801 is imported in the described light engine 840.Described white light 801 sees through wiregrating polarization sheet (wire-grid polarizer) 841 and becomes S polarization (S-polarized) white light 802.Dichronic mirror 842 allows the green glow in the described S polarization white light 802 to see through, and reflection comprises residue (purple) light of ruddiness and blue light.Described green glow is transmitted to first polarization spectroscope (the polarized beam splitter, be called for short PBS) 843, and reflexed on the LCOS device 845 of the green of being responsible for projected image by the described first polarization spectroscope 843, a wherein said LCOS device 845 is installed in an edge of the described first polarization spectroscope 843.Quarter wave plate (wave plate) 844 is positioned at a described LCOS device 845 fronts to improve the impingement rate of described green glow.(be the image of data sense this moment based on the input picture from Video Controller (not shown), the abbreviation data image) Pixel Information, a described LCOS device 845 is modulated to P polarization (P-polarized) green image with the described S polarization green glow of incident, and reflects described P polarization green image.The P polarization green image of reflection sees through the described first polarization spectroscope 843 and wave plate (wave plate) 846 arrives described the 3rd polarization spectroscope 847, and described wave plate 846 is converted into S polarization green image with described P polarization green image.
S polarization purple light from described dichronic mirror 842 enters the second polarization spectroscope 849 by arrowband half-wave retarders 855.Described arrowband half-wave retarders 855 only polarizes to the red band of light in the described purple light, is the P polarization with red band of light by the S polarization conversion only therefore.Described P polarization ruddiness passes the 2nd LCOS device 851 that the described second polarization spectroscope 849 and quarter wave plate 850 reach the redness of being responsible for projected image, and wherein the 2nd LCOS device 851 is installed in an edge of the described second polarization spectroscope 849.The described S polarization of the described second polarization spectroscope, 849 reflections blue light, described afterwards S polarization blue light passes the 3rd LCOS device 854 that quarter wave plate 853 arrives the blueness of being responsible for projected image, and described the 3rd LCOS device 854 is installed in another edge of the second polarization spectroscope 849.Because red image can reflect at the 2nd LCOS device 851, blue image can reflect at the 3rd LCOS device 854, so their polarity will change.The red image that reflects from the 2nd LCOS device 851 becomes the S polarization, and described afterwards S polarization red image is by 849 reflections of the described second polarization spectroscope.The blue image that reflects from the 3rd LCOS device 854 becomes the P polarization, and described afterwards P polarization blue image penetrates the described second polarization spectroscope 849.The close described second polarization spectroscope 849 that another arrowband half-wave retarders 848 is placed, being used for described ruddiness image is the P polarization by the S polarization conversion, and the polarity of blue image is not influenced.Described the 3rd polarization spectroscope 847 reflects described S polarization green image, and it is combined to form full-colour image 803 with described P polarization red image and P polarization blue image.Described full-colour image 803 directly or indirectly is projected on the described screen 880 by described projection lens 860.
Owing to adopted the projection lamp light source package of the present invention's proposition, can increase the life-span of LCOS projection display system 800.
Equally, the projection lamp light source package that the present invention proposes can also be applied to the projection display system that digital light is handled projection display system (digital light processing projection display system is called for short the DLP projection display system) and other types.
Above the present invention has been carried out the enough detailed description with certain singularity.Under those of ordinary skill in the field should be appreciated that the description among the embodiment only is exemplary, under the prerequisite that does not depart from true spirit of the present invention and scope, make change and all should belong to protection scope of the present invention.The present invention's scope required for protection is limited by described claims, rather than limit by the foregoing description among the embodiment.
Claims (11)
1. optical devices, it is characterized in that: it comprises integrated mirror reflection device,
Described mirror reflection utensil has first focus and second focus,
When the lamp arc of a light source was positioned on described first focus, the light that the lamp arc of described light source sends converged on second focus through after the internal reflection of described mirror reflection device, and formed lamp arc picture at the second focus place, and described lamp arc picture is consistent with lamp arc size.
2. optical devices according to claim 1, it is characterized in that, described mirror reflection device comprise first reflecting part and with second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is a paraboloidal part, described first reflecting part and second reflecting part big or small consistent, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
3. optical devices according to claim 1, it is characterized in that, described mirror reflection device comprises first reflecting part and second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is different paraboloidal parts, more described first reflecting part of described second reflecting part is big, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
4. optical devices according to claim 1, it is characterized in that, it also includes the Reflex Reflector with a focus, described Reflex Reflector has spherical reflective surface will, itself and described mirror reflection device are staggered relatively, the lamp arc of described light source also is positioned on the focus of described Reflex Reflector simultaneously, and described light source projects to the light of described Reflex Reflector is converged to first focus again through after the reflection of described Reflex Reflector, is projected onto once more subsequently on the described mirror reflection device.
5. according to the arbitrary described optical devices of claim 1-4, it is characterized in that, it also includes extender lens group and compound eye lens group, and described extender lens group is used for the light from described lamp arc picture is expanded bundle, is coupled to compound eye lens group afterwards and spares optical processing.
6. optical devices according to claim 5 is characterized in that, described extender lens group is a rod-shaped lens.
7. optical devices, it is characterized in that: it comprises integrated mirror reflection device, Reflex Reflector and light source,
Described mirror reflection utensil has first focus and second focus, when the lamp arc of described light source is positioned on described first focus, the light that the lamp arc of described light source sends converges on second focus through after the internal reflection of described mirror reflection device, and at second focus place formation lamp arc picture, described lamp arc picture is consistent with lamp arc size
Described Reflex Reflector has spherical reflective surface will, it has a focus, and it is staggered relatively with described mirror reflection device, the lamp arc of described light source also is positioned on the focus of described Reflex Reflector simultaneously, described light source projects to the light of described Reflex Reflector is converged to first focus again through after the reflection of described Reflex Reflector, is projected onto once more subsequently on the described mirror reflection device.
8. optical devices according to claim 7, it is characterized in that, described mirror reflection device comprise first reflecting part and with second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is a paraboloidal part, described first reflecting part and second reflecting part big or small consistent, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
9. optical devices according to claim 7, it is characterized in that, described mirror reflection device comprises first reflecting part and second reflecting part, the interior reflective surface of described first reflecting part and second reflecting part is different paraboloidal parts, more described first reflecting part of described second reflecting part is big, the light that described light source sends through the reflection of first reflecting part after parallel projection to the second reflecting part, second reflecting part converges to the light of parallel incident on second focus again.
10. projection display system is characterized in that it comprises:
As the arbitrary described optical devices of claim 1-9, it sends mixed white light;
Light engine generates optical imagery based on described mixed white light and data image; With
Projection lens carries out projection with described optical imagery.
11. projection display system as claimed in claim 8 is characterized in that, described light engine comprises LCOS device or LCD panel.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359459A (en) * | 1999-07-01 | 2002-07-17 | 考金特光学技术公司 | Condensing and collecting optical systea using parabolic reflectors or a corresponding ellipsoid/hyperboloid pair of reflectors |
| US20030179977A1 (en) * | 2002-02-08 | 2003-09-25 | Wavien, Inc. | Polarization recovery system using light pipes |
| CN1459039A (en) * | 2000-03-27 | 2003-11-26 | 高准光源科技有限公司 | Coupling of light from light source to target using dual elpsoidal reflectors |
| CN1555509A (en) * | 2001-04-25 | 2004-12-15 | ά | Light recovery for projection displays |
| CN1754063A (en) * | 2003-02-21 | 2006-03-29 | 微阳有限公司 | Polarization recovery system using redirection |
| TW201015131A (en) * | 2008-09-05 | 2010-04-16 | Wavien Inc | Pseudo light pipe for coupling of light for dual paraboloid reflector (DPR) system |
-
2011
- 2011-07-05 CN CN2011101862064A patent/CN102236171A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359459A (en) * | 1999-07-01 | 2002-07-17 | 考金特光学技术公司 | Condensing and collecting optical systea using parabolic reflectors or a corresponding ellipsoid/hyperboloid pair of reflectors |
| CN1160527C (en) * | 1999-07-01 | 2004-08-04 | 考金特光学技术公司 | Condensing and collecting optical systea using parabolic reflectors or a corresponding ellipsoid/hyperboloid pair of reflectors |
| CN1459039A (en) * | 2000-03-27 | 2003-11-26 | 高准光源科技有限公司 | Coupling of light from light source to target using dual elpsoidal reflectors |
| CN1555509A (en) * | 2001-04-25 | 2004-12-15 | ά | Light recovery for projection displays |
| US20030179977A1 (en) * | 2002-02-08 | 2003-09-25 | Wavien, Inc. | Polarization recovery system using light pipes |
| CN1754063A (en) * | 2003-02-21 | 2006-03-29 | 微阳有限公司 | Polarization recovery system using redirection |
| TW201015131A (en) * | 2008-09-05 | 2010-04-16 | Wavien Inc | Pseudo light pipe for coupling of light for dual paraboloid reflector (DPR) system |
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Application publication date: 20111109 |