CN102236173A - Projector - Google Patents
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- CN102236173A CN102236173A CN2010101768636A CN201010176863A CN102236173A CN 102236173 A CN102236173 A CN 102236173A CN 2010101768636 A CN2010101768636 A CN 2010101768636A CN 201010176863 A CN201010176863 A CN 201010176863A CN 102236173 A CN102236173 A CN 102236173A
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Abstract
The invention discloses a projector, which comprises a first reflective polarization beam splitter (PBS) assembly, a first vertical reflective PBS assembly, a second reflective PBS assembly, a second vertical reflective PBS assembly, a plurality of reflective silica-based liquid crystal display panels, a projection camera and a light source. The first reflective PBS assembly, the first vertical reflective PBS assembly, the second reflective PBS assembly and the second vertical reflective PBS assembly are arranged clockwise in an X shape at an interval. The projector can be matched with adsorptive polaroids; and thus, the contrast ratio of the projector is improved, interference is avoided at the internal part of the projector, and the projection quality is improved.
Description
Technical field
The present invention relates to a kind of projection arrangement, be specifically related to a kind of low-cost projection arrangement that improves contrast and be difficult for producing interference.
Background technology
At present, please refer to I237730 number disclosed a kind of three-dimensional of Taiwan patent of invention/two-dimentional switchable color projection device, it is to arrange in pairs or groups with two silicon base liquid crystal reflective panels the polarization splitting prism group is set again, and to export the stereo image information of different visual angles respectively, goes out stereopsis with projection.
Light source irradiation is after this polarization splitting prism group, become the orthogonal two-beam in polarization direction by this polarization splitting prism component, distinguish incident two silicon wafer liquid crystal Reflector Panels again, after the modulation of two silicon wafer liquid crystal Reflector Panels, change the polarization direction, converge output through this polarization splitting prism group again, after the projection objective projection imaging.
Yet this kind is with the projection arrangement of polarization splitting prism component light, and its shortcoming is, be not easy collocation and use the absorption-type polaroid, the raising of contrast is restricted, and the projection arrangement internal mechanism easily produces interference, has all influenced the projection quality of projection arrangement.
Summary of the invention
In view of the every problem in the background technology, the present invention proposes a kind of projection arrangement, with as implementation and the foundation of improving above-mentioned shortcoming, can improve contrast, is difficult for producing interference, and cost is low.
For achieving the above object, the invention provides a kind of projection arrangement, it is characterized in that this device comprises one first reflection type polarization spectrum groupware, one the 1 degree reflection type polarization spectrum groupware, one second reflection type polarization spectrum groupware and one the 2 90 degree reflection type polarization spectrum groupware that is the X-shaped arrangement and is provided with;
Several reflective type silicon-based liquid crystal panels, be respectively with the setting that corresponds to each other of the one 90 degree reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware;
One light source is and the setting that corresponds to each other of this first reflection type polarization spectrum groupware; And
One projection lens is and the setting that corresponds to each other of this second reflection type polarization spectrum groupware.
Between above-mentioned first reflection type polarization spectrum groupware and described the one 90 degree reflection type polarization spectrum groupware, between the one 90 degree reflection type polarization spectrum groupware and the described second reflection type polarization spectrum groupware, between the second reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware, reach the 2 90 and spend between the reflection type polarization spectrum groupware and the first reflection type polarization spectrum groupware and be respectively arranged with at least one absorption-type polaroid.
Surface, this second reflection type polarization spectrum groupware that above-mentioned the one 90 degree reflection type polarization spectrum groupware regards to this first reflection type polarization spectrum groupware regards to the surface of the one 90 degree reflection type polarization spectrum groupware, the surface that the 2 90 degree reflection type polarization spectrum groupware regards to this second reflection type polarization spectrum groupware, and the surface that this first reflection type polarization spectrum groupware regards to the 2 90 degree reflection type polarization spectrum groupware is respectively equipped with at least one absorption-type polaroid.
Above-mentioned projection arrangement, wherein:
Centre between the first reflection type polarization spectrum groupware and the one 90 degree reflection type polarization spectrum groupware is provided with at least one first absorption-type polaroid, makes one first plane of this first absorption-type polaroid and one second plane regard to this first reflection type polarization spectrum groupware and the one 90 degree reflection type polarization spectrum groupware respectively;
Centre between the one 90 degree reflection type polarization spectrum groupware and this second reflection type polarization spectrum groupware is provided with at least one second absorption-type polaroid, makes one first plane of this second absorption-type polaroid and one second plane regard to the one 90 degree reflection type polarization spectrum groupware and this second reflection type polarization spectrum groupware respectively;
Centre between this second reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware is provided with at least one the 3rd absorption-type polaroid, makes one first plane of the 3rd absorption-type polaroid and one second plane regard to this second reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware respectively; And
Centre between the 2 90 degree reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware is provided with at least one the 4th absorption-type polaroid, makes one first plane of this absorption-type polaroid and one second plane regard to the 2 90 degree reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware respectively.
The above-mentioned first reflection type polarization spectrum groupware, this second reflection type polarization spectrum groupware, the one 90 degree reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware are to be respectively a reflection-type polarisation brightening piece or a wire grid polarizer.
A kind of projection arrangement is characterized in that, this device comprises:
Be X-shaped and arrange one first reflection type polarization spectrum groupware, one second reflection type polarization spectrum groupware, a three-mirror reflective polarization spectro assembly and one the 4th reflection type polarization spectrum groupware that is provided with;
Several reflective type silicon-based liquid crystal panels, be respectively with the setting that corresponds to each other of this three-mirror reflective polarization spectro assembly and the 4th reflection type polarization spectrum groupware;
Light source is and the setting that corresponds to each other of this first reflection type polarization spectrum groupware; And
Projection lens is and the setting that corresponds to each other of this second reflection type polarization spectrum groupware.
Between the above-mentioned first reflection type polarization spectrum groupware and this three-mirror reflective polarization spectro assembly, between this three-mirror reflective polarization spectro assembly and this second reflection type polarization spectrum groupware, between this second reflection type polarization spectrum groupware and the 4th reflection type polarization spectrum groupware, and be respectively arranged with at least one absorption-type polaroid between the 4th reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware.
Centre between the above-mentioned first reflection type polarization spectrum groupware and this three-mirror reflective polarization spectro assembly is provided with at least one first absorption-type polaroid, makes one first plane of this first absorption-type polaroid and one second plane regard to this first reflection type polarization spectrum groupware and this three-mirror reflective polarization spectro assembly respectively;
Centre between this three-mirror reflective polarization spectro assembly and this second reflection type polarization spectrum groupware is provided with at least one second absorption-type polaroid, makes one first plane of this second absorption-type polaroid and one second plane regard to this three-mirror reflective polarization spectro assembly and this second reflection type polarization spectrum groupware respectively;
Centre between this second reflection type polarization spectrum groupware and the 4th reflection type polarization spectrum groupware is provided with at least one the 3rd absorption-type polaroid, makes one first plane of the 3rd absorption-type polaroid and one second plane regard to this second reflection type polarization spectrum groupware and the 4th reflection type polarization spectrum groupware respectively; And
Centre between the 4th reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware is provided with at least one the 4th absorption-type polaroid, makes one first plane of the 4th absorption-type polaroid and one second plane regard to the 4th reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware respectively.
Centre between the above-mentioned first reflection type polarization spectrum groupware and this three-mirror reflective polarization spectro assembly is provided with one first half-wave plate, makes one first plane of this first half-wave plate and one second plane regard to this first reflection type polarization spectrum groupware and this three-mirror reflective polarization spectro assembly respectively;
Centre between this three-mirror reflective polarization spectro assembly and this second reflection type polarization spectrum groupware is provided with one second half-wave plate, makes one first plane of this second half-wave plate and one second plane regard to this three-mirror reflective polarization spectro assembly and this second reflection type polarization spectrum groupware respectively;
Centre between this second reflection type polarization spectrum groupware and the 4th reflection type polarization spectrum groupware is provided with one the 3rd half-wave plate, makes one first plane of the 3rd half-wave plate and one second plane regard to this second reflection type polarization spectrum groupware and the 4th reflection type polarization spectrum groupware respectively; And
Centre between the 4th reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware is provided with one the 4th half-wave plate, makes one first plane of the 4th half-wave plate and one second plane regard to the 4th reflection type polarization spectrum groupware and this first reflection type polarization spectrum groupware respectively.
The above-mentioned first reflection type polarization spectrum groupware, this second reflection type polarization spectrum groupware, this three-mirror reflective polarization spectro assembly, and the 4th reflection type polarization spectrum groupware is to be respectively a reflection-type polarisation brightening piece or a wire grid polarizer.
Projection arrangement of the present invention is compared with existing projection arrangement, and its advantage is that the present invention can arrange in pairs or groups and use the absorption-type polaroid, has so promptly improved the contrast of projection arrangement, has improved projection quality;
Several reflective type silicon-based liquid crystal panels of the present invention are to be arranged at the side that is different from projection lens or light source, are difficult between the projection lens of those reflective type silicon-based liquid crystal panels and projection arrangement inside or the light source producing interference, so improved projection quality;
The present invention is with several reflection type polarization spectrum groupware polarization spectro in addition, but not with the beam split in addition of polarization splitting prism group, so mechanism is less and cost is low;
The invention provides a projection arrangement, comprise one first reflection type polarization spectrum groupware, one the 1 degree reflection type polarization spectrum groupware, one second reflection type polarization spectrum groupware, one the 2 90 degree reflection type polarization spectrum groupware, several reflective type silicon-based liquid crystal panels, a projection lens, a light source; This first reflection type polarization spectrum groupware, the one 90 degree reflection type polarization spectrum groupware, this second reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware are X-shaped and arrange.These several reflective type silicon-based liquid crystal panels respectively with the setting that corresponds to each other of the one 90 degree reflection type polarization spectrum groupware and the 2 90 degree reflection type polarization spectrum groupware.The setting that corresponds to each other of this light source and this first reflection type polarization spectrum groupware.The setting that corresponds to each other of this projection lens and the second reflection type polarization spectrum groupware.Projection arrangement of the present invention can be arranged in pairs or groups and be used the absorption-type polaroid, so promptly improved the contrast of projection arrangement, and the projection arrangement internal mechanism is difficult for producing interference, improved projection quality, and the present invention is with several reflection type polarization spectrum groupware polarization spectro in addition, but not with the beam split in addition of polarization splitting prism group, so mechanism is less and cost is low.
Now by making your juror further understanding and understanding be arranged to the present invention's technical characterictic and the effect that reached, careful assistant with preferable embodiment and cooperate detailed explanation as after.
Description of drawings
Fig. 1 is the synoptic diagram of first preferred embodiment of projection arrangement of the present invention;
Fig. 2 is the synoptic diagram of second preferred embodiment of projection arrangement of the present invention;
Fig. 3 is the synoptic diagram of the 3rd preferred embodiment of projection arrangement of the present invention;
Fig. 4 is the synoptic diagram of the 4th preferred embodiment of projection arrangement of the present invention;
Fig. 5 is the synoptic diagram of the 5th preferred embodiment of projection arrangement of the present invention;
Fig. 6 is the synoptic diagram of the 6th preferred embodiment of projection arrangement of the present invention.
The primary clustering symbol description
1 projection arrangement
2 absorption-type polaroids
3 half-wave plates
11 first reflection type polarization spectrum groupware
12 the 1 degree reflection type polarization spectrum groupware
13 second reflection type polarization spectrum groupware
14 the 2 90 degree reflection type polarization spectrum groupware
15 reflective type silicon-based liquid crystal panels
16 projection lens
161 light inlets
17 light sources
171 bright dippings place
172 light
18 three-mirror reflective polarization spectro assemblies
19 the 4th reflection type polarization spectrum groupware
21 first planes
22 second planes
31 first planes
32 second planes
Embodiment
Hereinafter with reference to relevant drawings, the preferred embodiment of projection arrangement of the present invention is described, to be convenient to understand for making, the same components among the following embodiment is to illustrate with identical symbology.
At first, as shown in Figure 1, it is the synoptic diagram of first preferred embodiment of projection arrangement of the present invention, and this projection arrangement 1 comprises one first reflection type polarization spectrum groupware 11, one the 1 degree reflection type polarization spectrum groupware 12, one second reflection type polarization spectrum groupware 13, one the 2 90 degree reflection type polarization spectrum groupware 14, several reflective type silicon-based liquid crystals (LCoS; Liquid Crystal on Silicon) panel 15, a projection lens 16 and a light source 17.
This first reflection type polarization spectrum groupware the 11, the 1 degree reflection type polarization spectrum groupware 12, this second reflection type polarization spectrum groupware 13 and the 2 90 degree reflection type polarization spectrum groupware 14 are provided with at interval in clockwise manner and are X font mode and arrange as shown in Figure 1.This first reflection type polarization spectrum groupware 11 and this second reflection type polarization spectrum groupware 13 are reflection-type polarisation brightening piece or wire grid polarizer.The one 90 degree reflection type polarization spectrum groupware 12 and the 2 90 degree reflection type polarization spectrum groupware 14 also are reflection-type polarisation brightening piece or wire grid polarizer.These several reflective type silicon-based liquid crystal panels 15 respectively with the setting that corresponds to each other of the one 90 degree reflection type polarization spectrum groupware 12 and the 2 90 degree reflection type polarization spectrum groupware 14.This light source 17 has bright dipping place 171, the setting that corresponds to each other of this bright dipping place 171 and this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, the setting that corresponds to each other of this light inlet 161 and the second reflection type polarization spectrum groupware 13.
During use, the light 172 of this light source 17 is by this first reflection type polarization spectrum groupware 11 of this bright dipping place 171 incidents.This light 172 is divided into a S direction light (S ripple by this first reflection type polarization spectrum groupware 11; Shear wave) and a P direction light (P ripple; Compressional wave).Furthermore, after this S direction light is reflected by this first reflection type polarization spectrum groupware 11, earlier by the one 90 degree reflection type polarization spectrum groupware 12, reenter this reflective type silicon-based liquid crystal panel 15 of penetrating Fig. 1 top, be converted to P direction light by these reflective type silicon-based liquid crystal panel 15 reflections then, and make this P direction light towards away from the direction of this reflective type silicon-based liquid crystal panel 15 incident the one 90 degree reflection type polarization spectrum groupware 12 once more, then by after 12 reflections of the one 90 degree reflection type polarization spectrum groupware, this second reflection type polarization spectrum groupware 13 of incident again, and by after this second reflection type polarization spectrum groupware 13, this P direction light is by this this projection lens 16 of light inlet 161 incidents.
In like manner, aforementioned this light 172 is by the P direction light of these first reflection type polarization spectrum groupware, 11 back gained, be earlier by the 2 90 degree reflection type polarization spectrum groupware 12, after 14 reflections of the 2 90 degree reflection type polarization spectrum groupware, reenter this reflective type silicon-based liquid crystal panel 15 of penetrating Fig. 1 below, be converted to S direction light by these reflective type silicon-based liquid crystal panel 15 reflections then, and make this S direction light towards away from the direction of this reflective type silicon-based liquid crystal panel 15 incident the 2 90 degree reflection type polarization spectrum groupware 14 once more, after the 2 90 degree reflection type polarization spectrum groupware 14, this second reflection type polarization spectrum groupware 13 of incident again, after this S direction light is reflected by this second reflection type polarization spectrum groupware 13, again by this this projection lens 16 of light inlet 161 incidents.
As shown in Figure 2, it is the synoptic diagram of second preferred embodiment of projection arrangement of the present invention.The present invention also can arrange in pairs or groups use one or the absorption-type polaroid 2 of multi-disc in projection arrangement 1 as shown in Figure 2.This projection arrangement 1 comprises one first reflection type polarization spectrum groupware 11, one the 1 degree reflection type polarization spectrum groupware 12, one second reflection type polarization spectrum groupware 13, one the 2 90 degree reflection type polarization spectrum groupware 14, several reflective type silicon-based liquid crystal panels 15, several absorption-type polaroids 2, a projection lens 16 and a light source 17.
This first reflection type polarization spectrum groupware the 11, the 1 degree reflection type polarization spectrum groupware 12, this second reflection type polarization spectrum groupware 13, and the 2 90 degree reflection type polarization spectrum groupware 14 is provided with at interval in clockwise manner and is X font mode and arranges.This first reflection type polarization spectrum groupware 11 and this second reflection type polarization spectrum groupware 13 are reflection-type polarisation brightening piece or wire grid polarizer.The one 90 degree reflection type polarization spectrum groupware 12 and the 2 90 degree reflection type polarization spectrum groupware 14 also are reflection-type polarisation brightening piece or wire grid polarizer.
The difference of second preferred embodiment and first preferred embodiment is that the projection arrangement of second preferred embodiment further has a slice absorption-type polaroid 2 at least, also promptly has one or the one chip or the multiple-piece absorption-type polaroid 2 of multi-disc.Wherein, at least one absorption-type polaroid 2 is arranged between this first reflection type polarization spectrum groupware 11 and the one 90 degree reflection type polarization spectrum groupware 12, for example is attached at the surface that the one 90 degree reflection type polarization spectrum groupware 12 regards to this first reflection type polarization spectrum groupware 11.In addition, at least one absorption-type polaroid 2 more is arranged between the one 90 degree reflection type polarization spectrum groupware 12 and this second reflection type polarization spectrum groupware 13, for example is attached at the surface that this second reflection type polarization spectrum groupware 13 regards to the one 90 degree reflection type polarization spectrum groupware 12.
In addition, at least one absorption-type polaroid 2 more is arranged between this second reflection type polarization spectrum groupware 13 and the 2 90 degree reflection type polarization spectrum groupware 14, for example is attached at the surface that the 2 90 degree reflection type polarization spectrum groupware 14 regards to this second reflection type polarization spectrum groupware 13.In addition, at least one absorption-type polaroid 2 more is arranged between the 2 90 degree reflection type polarization spectrum groupware 14 and this first reflection type polarization spectrum groupware 11, for example is attached at the surface that this first reflection type polarization spectrum groupware 11 regards to the 2 90 degree reflection type polarization spectrum groupware 14.
Be same as first preferred embodiment, several reflective type silicon-based liquid crystal panels 15 of this of second preferred embodiment of projection arrangement of the present invention be respectively with the setting that corresponds to each other of the one 90 degree reflection type polarization spectrum groupware 12 and the 2 90 degree reflection type polarization spectrum groupware 14.This light source 17 has bright dipping place 171, and this bright dipping place 171 is and the setting that corresponds to each other of this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, and this light inlet 161 is and the setting that corresponds to each other of the second reflection type polarization spectrum groupware 13.
As shown in Figure 3, it is the synoptic diagram of the 3rd preferred embodiment of projection arrangement of the present invention, the present invention also can arrange in pairs or groups use one or the absorption-type polaroid 2 of multi-disc in projection arrangement 1 as shown in Figure 3.This projection arrangement comprises one first reflection type polarization spectrum groupware 11, one the 1 degree reflection type polarization spectrum groupware 12, one second reflection type polarization spectrum groupware 13, one the 2 90 degree reflection type polarization spectrum groupware 14, several reflective type silicon-based liquid crystal panels 15, several absorption-type polaroids 2, a projection lens 16 and a light source 17.
The difference of the 3rd preferred embodiment and first preferred embodiment is that the projection arrangement of the 3rd preferred embodiment further has at least one absorption-type polaroid 2, promptly has one or the one chip or the multiple-piece absorption-type polaroid 2 of multi-disc.Wherein, at least one absorption-type polaroid 2 more is arranged between this first reflection type polarization spectrum groupware 11 and the one 90 degree reflection type polarization spectrum groupware 12, for example be located between the first reflection type polarization spectrum groupware 11 and the one 90 degree reflection type polarization spectrum groupware 12 centre, make first plane 21 and second plane 22 of two correspondences of this absorption-type polaroid 2 regard to this first reflection type polarization spectrum groupware 11 and the one 90 degree reflection type polarization spectrum groupware 12 respectively.In addition, at least one absorption-type polaroid 2 more is arranged between the one 90 degree reflection type polarization spectrum groupware 12 and this second reflection type polarization spectrum groupware 13, for example be located at the centre between the one 90 degree reflection type polarization beam split 12 assemblies and this second reflection type polarization spectrum groupware 13, make first plane 21 of two correspondences of this absorption-type polaroid 2 and second plane 22 regard to the one 90 respectively and spend reflection type polarization spectrum groupware 12 and this second reflection type polarization spectrum groupware 13.
In addition, at least one absorption-type polaroid 2 more is arranged between this second reflection type polarization spectrum groupware 13 and the 2 90 degree reflection type polarization spectrum groupware 14, for example be located at the centre between this second reflection type polarization spectrum groupware 13 and the 2 90 degree reflection type polarization spectrum groupware 14, make first plane 21 and second plane 22 of two correspondences of this absorption-type polaroid 2 regard to this second reflection type polarization spectrum groupware 13 and the 2 90 degree reflection type polarization spectrum groupware 14 respectively.In addition, at least one absorption-type polaroid 2 more is arranged between the 2 90 degree reflection type polarization beam split 14 assemblies and this first reflection type polarization spectrum groupware 11, for example be located at the centre between the 2 90 degree reflection type polarization spectrum groupware 14 and this first reflection type polarization spectrum groupware 11, make first plane 21 of two correspondences of this absorption-type polaroid 2 and second plane 22 regard to the 2 90 respectively and spend reflection type polarization spectrum groupware 14 and this first reflection type polarization spectrum groupware 11.
Be same as first preferred embodiment, several reflective type silicon-based liquid crystal panels 15 of this of the 3rd preferred embodiment of projection arrangement of the present invention be respectively with the setting that corresponds to each other of the one 90 degree reflection type polarization spectrum groupware 12 and the 2 90 degree reflection type polarization spectrum groupware 14.This light source 17 has bright dipping place 171, and this bright dipping place 171 is and the setting that corresponds to each other of this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, and this light inlet 161 is and the setting that corresponds to each other of the second reflection type polarization spectrum groupware 13.
As shown in Figure 4, it is the synoptic diagram of the 4th preferred embodiment of projection arrangement of the present invention, and this projection arrangement is to comprise one first reflection type polarization spectrum groupware 11, one second reflection type polarization spectrum groupware 13, a three-mirror reflective polarization spectro assembly 18, one the 4th reflection type polarization spectrum groupware 19, several reflective type silicon-based liquid crystal panels 15, a projection lens 16 and a light source 17.
This first reflection type polarization spectrum groupware 11, this three-mirror reflective polarization spectro assembly 18, this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19 are provided with at interval in clockwise manner and are X font mode and arrange.This first reflection type polarization spectrum groupware 11, this second reflection type polarization spectrum groupware 13, this three-mirror reflective polarization spectro assembly 18 and the 4th reflection type polarization spectrum groupware 19 are for example reflection-type polarisation brightening piece or wire grid polarizer.These several reflective type silicon-based liquid crystal panels 15 respectively with the setting that corresponds to each other of this three-mirror reflective polarization spectro assembly 18 and the 4th reflection type polarization spectrum groupware 19.This light source 17 has bright dipping place 171, the setting that corresponds to each other of this bright dipping place 171 and this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, the setting that corresponds to each other of this light inlet 161 and the second reflection type polarization spectrum groupware 13.
As shown in Figure 5, it is the synoptic diagram of the 5th preferred embodiment of projection arrangement of the present invention.The present invention also can arrange in pairs or groups and use absorption-type polaroid 2, and projection arrangement 1 as shown in FIG. comprises one first reflection type polarization spectrum groupware 11, one second reflection type polarization spectrum groupware 13, a three-mirror reflective polarization spectro assembly 18, one the 4th reflection type polarization spectrum groupware 19, several reflective type silicon-based liquid crystal panels 15, several absorption-type polaroids 2, a projection lens 16 and a light source 17.
The projection arrangement of the present invention's the 5th preferred embodiment has at least one absorption-type polaroid 2, promptly has one or the one chip or the multiple-piece absorption-type polaroid 2 of multi-disc.Wherein, at least one absorption-type polaroid 2 more is arranged between this first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18, for example be located at the centre between the first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18, make first plane 21 and second plane 22 of two correspondences of this absorption-type polaroid 2 regard to this first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18 respectively.In addition, at least one absorption-type polaroid 2 more is arranged between this three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13, for example be located at the centre between three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13, make two corresponding first planes 21 and second plane 22 of this absorption-type polaroid 2 regard to this three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13 respectively.
In addition, at least one absorption-type polaroid 2 further is arranged between this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19, for example be located at the centre between this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19, make two corresponding first planes 21 and second plane 22 of this absorption-type polaroid 2 regard to this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19 respectively.In addition, at least one absorption-type polaroid 2 more is arranged between the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11, for example be located at the centre between the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11, make first plane 21 and second plane 22 of two correspondences of this absorption-type polaroid 2 regard to the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11 respectively.
Several reflective type silicon-based liquid crystal panels 15 of the 5th preferred embodiment of projection arrangement of the present invention respectively with the setting that corresponds to each other of this three-mirror reflective polarization spectro assembly 18 and the 4th reflection type polarization spectrum groupware 19.This light source 17 has bright dipping place 171, the setting that corresponds to each other of this bright dipping place 171 and this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, the setting that corresponds to each other of this light inlet 161 and the second reflection type polarization spectrum groupware 13.
As shown in Figure 6, it is the synoptic diagram of the 6th preferred embodiment of projection arrangement of the present invention.The present invention also can arrange in pairs or groups and use half-wave plate 3.Projection arrangement 1 as shown in Figure 6 comprises one first reflection type polarization spectrum groupware 11, one second reflection type polarization spectrum groupware 13, a three-mirror reflective polarization spectro assembly 18, one the 4th reflection type polarization spectrum groupware 19, several reflective type silicon-based liquid crystal panels 15, several half-wave plates 3, a projection lens 16 and a light source 17.
Wherein, a half-wave plate 3 is arranged between this first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18, for example be located at the centre between the first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18, make two corresponding first planes 31 and second plane 32 of this half-wave plate 3 regard to this first reflection type polarization spectrum groupware 11 and this three-mirror reflective polarization spectro assembly 18 respectively.In addition, a half-wave plate 3 is arranged between this three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13, for example be located at the centre between three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13, make two corresponding first planes 31 and second plane 32 of this half-wave plate 3 regard to this three-mirror reflective polarization spectro assembly 18 and this second reflection type polarization spectrum groupware 13 respectively.
In addition, a half-wave plate 3 is arranged between this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19, for example be located at the centre between this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19, make first plane 31 and second plane 32 of two correspondences of this half-wave plate 3 regard to this second reflection type polarization spectrum groupware 13 and the 4th reflection type polarization spectrum groupware 19 respectively.In addition, a half-wave plate 3 is arranged between the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11, for example be located at the centre between the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11, make two corresponding first planes 31 of this half-wave plate 3 and second plane 32 regard to the 4th reflection type polarization spectrum groupware 19 and this first reflection type polarization spectrum groupware 11 respectively.
Several reflective type silicon-based liquid crystal panels 15 of the 6th preferred embodiment of projection arrangement of the present invention respectively with the setting that corresponds to each other of this three-mirror reflective polarization spectro assembly 18 and the 4th reflection type polarization spectrum groupware 19.This light source 17 has bright dipping place 171, the setting that corresponds to each other of this bright dipping place 171 and this first reflection type polarization spectrum groupware 11.This projection lens 16 has a light inlet 161, the setting that corresponds to each other of this light inlet 161 and the second reflection type polarization spectrum groupware 13.
During use, the light 172 of this light source 17 is by this first reflection type polarization spectrum groupware 11 of this bright dipping place 171 incidents, and this light 172 is divided into S direction light and a P direction light by this first reflection type polarization spectrum groupware 11.Furthermore, after this S direction light is reflected by this first reflection type polarization spectrum groupware 11, earlier by this half-wave plate 3, and after being changed into P direction light by this half-wave plate 3, make P direction light by this three-mirror reflective polarization spectro assembly 18 again, and incident one reflective type silicon-based liquid crystal panel 15, be reflected into S direction light by this reflective type silicon-based liquid crystal panel 15 then, and make S direction light towards away from the direction of this reflective type silicon-based liquid crystal panel 15 this three-mirror reflective polarization spectro assembly 18 of incident once more, then by after these three-mirror reflective polarization spectro assembly 18 reflections, again by this half-wave plate 3, after being changed into P direction light by this half-wave plate 3, make P direction light by this second reflection type polarization spectrum groupware 13, by this this projection lens 16 of light inlet 161 incidents again.
In like manner, aforementioned P direction light by this first reflection type polarization spectrum groupware 11, earlier by this half-wave plate 3, after being changed into S direction light by this half-wave plate 3, make S direction light incident the 4th reflection type polarization spectrum groupware 19 again, after 19 reflections of the 4th reflection type polarization spectrum groupware, incident one reflective type silicon-based liquid crystal panel 15 again, thereafter be reflected into P direction light by this reflective type silicon-based liquid crystal panel 15, and make P direction light towards away from the direction of this reflective type silicon-based liquid crystal panel 15 incident the 4th reflection type polarization spectrum groupware 19 once more, and by after the 4th reflection type polarization spectrum groupware 19, again by this half-wave plate 3, after being changed into S direction light by this half-wave plate 3, make this second reflection type polarization spectrum groupware 13 of S direction light incident again, after these second reflection type polarization spectrum groupware, 13 reflections, again by this this projection lens 16 of light inlet 161 incidents.
In sum, the present invention has following advantage at least:
1. improved contrast:
Projection arrangement of the present invention can be arranged in pairs or groups and be used the absorption-type polaroid, has so promptly improved the contrast of projection arrangement, has improved projection quality.
2. be difficult for producing interference:
Several reflective type silicon-based liquid crystal panels of the present invention are to be arranged at the side that is different from projection lens or light source, are difficult between the projection lens of those reflective type silicon-based liquid crystal panels and projection arrangement inside or the light source producing interference, so improved projection quality.
3. cost is low:
The present invention is with several reflection type polarization spectrum groupware polarization spectro in addition, but not with the beam split in addition of polarization splitting prism group, so mechanism is less and cost is low.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a projection arrangement is characterized in that, this device comprises:
Be X-shaped and arrange one first reflection type polarization spectrum groupware (11), one the 1 degree reflection type polarization spectrum groupware (12), one second reflection type polarization spectrum groupware (13) and one the 2 90 degree reflection type polarization spectrum groupware (14) that is provided with;
Several reflective type silicon-based liquid crystal panels (15), be respectively with described the one 90 degree reflection type polarization spectrum groupware (12) and described the 2 90 degree reflection type polarization spectrum groupware (14) setting that corresponds to each other;
One light source (17) is and the setting that corresponds to each other of this first reflection type polarization spectrum groupware (11); And
One projection lens (16) is and the setting that corresponds to each other of this second reflection type polarization spectrum groupware (13).
2. projection arrangement as claimed in claim 1, it is characterized in that, between described first reflection type polarization spectrum groupware (11) and described the one 90 degree reflection type polarization spectrum groupware (12), between described the one 90 degree reflection type polarization spectrum groupware (12) and the described second reflection type polarization spectrum groupware (13), between described second reflection type polarization spectrum groupware (13) and described the 2 90 degree reflection type polarization spectrum groupware (14), and be respectively arranged with at least one absorption-type polaroid (2) between described the 2 90 degree reflection type polarization spectrum groupware (14) and the described first reflection type polarization spectrum groupware (11).
3. projection arrangement as claimed in claim 2, it is characterized in that wherein said the one 90 degree reflection type polarization spectrum groupware (12) regards to the surface of this first reflection type polarization spectrum groupware (11), this second reflection type polarization spectrum groupware (13) regards to the surface of the one 90 degree reflection type polarization spectrum groupware (12), the 2 90 the degree reflection type polarization spectrum groupware (14) regard to this second reflection type polarization spectrum groupware (13) the surface and this first reflection type polarization spectrum groupware (11) regard to the 2 90 the degree reflection type polarization spectrum groupware (14) the surface be respectively equipped with at least one absorption-type polaroid (2).
4. projection arrangement as claimed in claim 1 is characterized in that, wherein:
Centre between described first reflection type polarization spectrum groupware (11) and the one 90 degree reflection type polarization spectrum groupware (12) is provided with at least one first absorption-type polaroid (2), makes one first plane (21) of two correspondences of this first absorption-type polaroid (2) and one second plane (22) respectively in the face of this first reflection type polarization spectrum groupware (11) and the one 90 degree reflection type polarization spectrum groupware (12);
Centre between the one 90 degree reflection type polarization spectrum groupware (12) and this second reflection type polarization spectrum groupware (13) is provided with at least one second absorption-type polaroid (2), makes one first plane (21) and one second plane (22) of two correspondences of this second absorption-type polaroid (2) spend reflection type polarization spectrum groupware (12) and this second reflection type polarization spectrum groupware (13) in the face of the 1 respectively;
Centre between this second reflection type polarization spectrum groupware (13) and the 2 90 degree reflection type polarization spectrum groupware (14) is provided with at least one the 3rd absorption-type polaroid (2), makes one first plane (21) of two correspondences of the 3rd absorption-type polaroid (2) and one second plane (22) respectively in the face of this second reflection type polarization spectrum groupware (13) and the 2 90 degree reflection type polarization spectrum groupware (14); And
Centre between the 2 90 degree reflection type polarization spectrum groupware (14) and this first reflection type polarization spectrum groupware (11) is provided with at least one the 4th absorption-type polaroid (2), makes one first plane (21) and one second plane (22) of two correspondences of this absorption-type polaroid (2) spend reflection type polarization spectrum groupware (14) and this first reflection type polarization spectrum groupware (11) in the face of the 2 90 respectively.
5. projection arrangement as claimed in claim 1, it is characterized in that the wherein said first reflection type polarization spectrum groupware (11), this second reflection type polarization spectrum groupware (13), the one 90 degree reflection type polarization spectrum groupware (12) and the 2 90 degree reflection type polarization spectrum groupware (14) are respectively a reflection-type polarisation brightening piece or a wire grid polarizer.
6. a projection arrangement is characterized in that, this device comprises:
Be X-shaped and arrange one first reflection type polarization spectrum groupware (11), one second reflection type polarization spectrum groupware (13), a three-mirror reflective polarization spectro assembly (18) and one the 4th reflection type polarization spectrum groupware (19) that is provided with;
Several reflective type silicon-based liquid crystal panels (15), its respectively with the setting that corresponds to each other of this three-mirror reflective polarization spectro assembly (18) and the 4th reflection type polarization spectrum groupware (19);
The setting that corresponds to each other of light source (17), itself and this first reflection type polarization spectrum groupware (11); And
The setting that corresponds to each other of projection lens (16), itself and this second reflection type polarization spectrum groupware (13).
7. projection arrangement as claimed in claim 6, it is characterized in that, between the described first reflection type polarization spectrum groupware (11) and this three-mirror reflective polarization spectro assembly (18), between this three-mirror reflective polarization spectro assembly (18) and this second reflection type polarization spectrum groupware (13), between this second reflection type polarization spectrum groupware (13) and the 4th reflection type polarization spectrum groupware (19), and be respectively arranged with at least one absorption-type polaroid (2) between the 4th reflection type polarization spectrum groupware (19) and this first reflection type polarization spectrum groupware (11).
8. as the projection arrangement as described in the claim 7, it is characterized in that, wherein:
Centre between the described first reflection type polarization spectrum groupware (11) and this three-mirror reflective polarization spectro assembly (18) is provided with at least one first absorption-type polaroid (2), makes one first plane (21) of two correspondences of this first absorption-type polaroid (2) and one second plane (22) respectively in the face of this first reflection type polarization spectrum groupware (11) and this three-mirror reflective polarization spectro assembly (18);
Centre between this three-mirror reflective polarization spectro assembly (18) and this second reflection type polarization spectrum groupware (13) is provided with at least one second absorption-type polaroid (2), makes one first plane (21) of two correspondences of this second absorption-type polaroid (2) and one second plane (22) respectively in the face of this three-mirror reflective polarization spectro assembly (18) and this second reflection type polarization spectrum groupware (13);
Centre between this second reflection type polarization spectrum groupware (13) and the 4th reflection type polarization spectrum groupware (19) is provided with at least one the 3rd absorption-type polaroid (2), makes one first plane (21) of two correspondences of the 3rd absorption-type polaroid (2) and one second plane (22) respectively in the face of this second reflection type polarization spectrum groupware (13) and the 4th reflection type polarization spectrum groupware (19); And
Centre between the 4th reflection type polarization spectrum groupware (19) and this first reflection type polarization spectrum groupware (11) is provided with at least one the 4th absorption-type polaroid (2), makes one first plane (21) of two correspondences of the 4th absorption-type polaroid (2) and one second plane (22) respectively in the face of the 4th reflection type polarization spectrum groupware (19) and this first reflection type polarization spectrum groupware (11).
9. projection arrangement as claimed in claim 6 is characterized in that, wherein:
Centre between the described first reflection type polarization spectrum groupware (11) and this three-mirror reflective polarization spectro assembly (18) is provided with one first half-wave plate (3), makes one first plane (31) of two correspondences of this first half-wave plate (3) and one second plane (32) respectively in the face of this first reflection type polarization spectrum groupware (11) and this three-mirror reflective polarization spectro assembly (18);
Centre between this three-mirror reflective polarization spectro assembly (18) and this second reflection type polarization spectrum groupware (13) is provided with one second half-wave plate (3), makes one first plane (31) of two correspondences of this second half-wave plate (3) and one second plane (32) respectively in the face of this three-mirror reflective polarization spectro assembly (18) and this second reflection type polarization spectrum groupware (13);
Centre between this second reflection type polarization spectrum groupware (13) and the 4th reflection type polarization spectrum groupware (19) is provided with one the 3rd half-wave plate (3), makes one first plane (31) of two correspondences of the 3rd half-wave plate (3) and one second plane (32) respectively in the face of this second reflection type polarization spectrum groupware (13) and the 4th reflection type polarization spectrum groupware (19); And
Centre between the 4th reflection type polarization spectrum groupware (19) and this first reflection type polarization spectrum groupware (11) is provided with one the 4th half-wave plate (3), makes one first plane (31) of the 4th half-wave plate (3) and one second plane (32) face the 4th reflection type polarization spectrum groupware (19) and this first reflection type polarization spectrum groupware (11) respectively.
10. projection arrangement as claimed in claim 6, it is characterized in that, the wherein said first reflection type polarization spectrum groupware (11), this second reflection type polarization spectrum groupware (13), this three-mirror reflective polarization spectro assembly (18), and the 4th reflection type polarization spectrum groupware (19) is respectively a reflection-type polarisation brightening piece or a wire grid polarizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101768636A CN102236173A (en) | 2010-05-05 | 2010-05-05 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101768636A CN102236173A (en) | 2010-05-05 | 2010-05-05 | Projector |
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| Publication Number | Publication Date |
|---|---|
| CN102236173A true CN102236173A (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101768636A Pending CN102236173A (en) | 2010-05-05 | 2010-05-05 | Projector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105212893A (en) * | 2014-06-19 | 2016-01-06 | 尚立光电股份有限公司 | Projection capture framework |
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| US6113239A (en) * | 1998-09-04 | 2000-09-05 | Sharp Laboratories Of America, Inc. | Projection display system for reflective light valves |
| CN1349618A (en) * | 1999-04-21 | 2002-05-15 | 美国精密镜片股份有限公司 | Optical system sfor reflective LCD's |
| TWI237730B (en) * | 2003-12-03 | 2005-08-11 | Kinoptics Inc | Color projecting display device capable of switching between three-dimension and two-dimension |
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2010
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113239A (en) * | 1998-09-04 | 2000-09-05 | Sharp Laboratories Of America, Inc. | Projection display system for reflective light valves |
| CN1349618A (en) * | 1999-04-21 | 2002-05-15 | 美国精密镜片股份有限公司 | Optical system sfor reflective LCD's |
| TWI237730B (en) * | 2003-12-03 | 2005-08-11 | Kinoptics Inc | Color projecting display device capable of switching between three-dimension and two-dimension |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105212893A (en) * | 2014-06-19 | 2016-01-06 | 尚立光电股份有限公司 | Projection capture framework |
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Application publication date: 20111109 |