CN104749869A - Projector - Google Patents
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- CN104749869A CN104749869A CN201510152206.0A CN201510152206A CN104749869A CN 104749869 A CN104749869 A CN 104749869A CN 201510152206 A CN201510152206 A CN 201510152206A CN 104749869 A CN104749869 A CN 104749869A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The invention discloses a projector comprising a light source system, a beam splitting system, a plurality of first reflection units, a plurality of second reflection units, a plurality of digital micromirror device, a beam combining device and a projecting lens. The beam splitting system is used for receiving the light ray emitted by the light source system and dividing the light ray into a plurality of colored lights transmitted along different light paths. The second reflection units are arranged on the first side of the first plane and used for receiving and reflecting the colored lights. The colored lights enter the digital micromirror devices through short sides of the digital micromirror devices and then are reflected by the same onto a second plane for transmitting in different directions. The second plane is parallel to the first plane. In this way, the projector is subjected to miniaturization, light and simple in structure.
Description
Technical field
The present invention describes a kind of projector, espespecially a kind of employing Three-dimensional light-splitting, and light is incident to DMD Digital Micromirror Device by the minor face of DMD Digital Micromirror Device, and the projector that multiple light splitting light path is identical.
Background technology
Projector utilizes image-forming principle and by DMD Digital Micromirror Device (DigitalMicro-mirrorDevice, DMD), micro image can be projected on jumbo screen, and provide enough brightness, image information is shared with everybody.
The splitting module of conventional projectors uses the spectroscopic modes of two dimension, and shared volume is comparatively large, and required element is more.In addition, ruddiness, green glow and blue light that the light that the light-source system of conventional projectors sends obtains after splitting module light splitting arrive the light path Length discrepancy of projection lens, and there is optical path difference, therefore need to compensate light path, thus cause complex structure.Pursuing today of microminiaturization projector, conventional projectors will lose competitive power gradually because of the structure of excessive volume, more element and complexity.
Therefore, be necessary to provide a kind of new projector to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of projector, it adopts Three-dimensional light-splitting, and light is incident to DMD Digital Micromirror Device by the minor face of DMD Digital Micromirror Device, and multiple light splitting light path is identical, also image quality is not affected while optimizing structure, reducing volume, can widespread use.
For reaching above-mentioned purpose, the invention provides a kind of projector, comprising:
Light-source system, for providing light;
Beam splitting system, is positioned in the light path of this light, in order to receive this light and to be formed in the first plane the segmentation of this light along the first coloured light of the first light path of different directions, the second light path and the 3rd paths, the second coloured light and the 3rd coloured light;
Multiple first reflection unit, respectively in order to receive and to reflect this first coloured light, this second coloured light and the 3rd coloured light that this beam splitting system splits, wherein after the plurality of first reflection unit reflection this first coloured light along the 4th paths, this second coloured light along the 5th paths, the 3rd coloured light along the 6th paths;
Multiple second reflection unit, be arranged at the first side of this first plane, in order to receive and to reflect this first coloured light, this second coloured light and the 3rd coloured light that reflect through the plurality of first reflection unit, wherein after the plurality of second reflection unit reflection, this first coloured light is along the 7th paths, this second coloured light along the 8th paths, the 3rd coloured light along the 9th paths, and the 7th light path, the 8th light path, the 9th light path are positioned at this first side of this first plane;
Multiple DMD Digital Micromirror Device, be arranged at this first side of this first plane, there is orthogonal first limit and Second Edge respectively, this first length of side is in this Second Edge, along the 7th light path, this first coloured light of 8th light path and the 9th paths, this second coloured light and the 3rd coloured light are incident to the plurality of DMD Digital Micromirror Device via this Second Edge of the plurality of DMD Digital Micromirror Device and are reflected by the plurality of DMD Digital Micromirror Device respectively, wherein after the plurality of DMD Digital Micromirror Device reflection, this first coloured light is along the tenth paths, this second coloured light is along the 11 paths, 3rd coloured light is along the 12 paths, wherein, tenth light path is perpendicular to the 11 light path, 11 light path is perpendicular to the 12 light path, tenth light path, 11 light path and the 12 light path are positioned in the second plane, and this second plane is parallel to this first plane and is positioned at this first side of this first plane,
Multiplexing apparatus, be arranged at this first side of this first plane, in order to receive along this first coloured light of the tenth light path, the 11 light path and this 12 paths, this second coloured light and the 3rd coloured light and this first coloured light, this second coloured light and the 3rd coloured light are carried out conjunction light; And
Projection lens, in order to receive the light that transmits through this Multiplexing apparatus and to project;
Wherein, the light beam that this light-source system produces through this beam splitting system to be divided into after this first coloured light, this second coloured light and the 3rd coloured light respectively along three directions successively via this first reflection unit, this second reflection unit, this digital micro-border device to this Multiplexing apparatus, and be incident to this projection lens after closing light via this Multiplexing apparatus, and this first coloured light, this second coloured light are identical with the light path of the 3rd coloured light.
Preferably, this DMD Digital Micromirror Device is the convertible DMD Digital Micromirror Devices of two axles.
Preferably, the plurality of second reflection unit is total-reflection prism group.
Preferably, this first light path perpendicular to this second light path, this second light path perpendicular to the 3rd light path.
Preferably, this first limit of the plurality of DMD Digital Micromirror Device is perpendicular to this first plane, and this Second Edge is parallel to this first plane.
Preferably, the 7th light path, the 8th light path and the 9th light path are respectively perpendicular to this Second Edge of this DMD Digital Micromirror Device of correspondence.
Preferably, the tenth light path, the 11 light path and the 12 light path are respectively perpendicular to the plurality of DMD Digital Micromirror Device place plane.
Preferably, this first light path, this second light path and the 3rd light path are 45 degree with angle formed by this corresponding first reflection unit respectively.
Preferably, definition has the first axle, this first axle is perpendicular to this first plane, and the 4th light path, the 5th light path and the 6th light path are coplanar with this first axle respectively, and the 4th light path, the 5th light path and the 6th light path are identical with angle formed by this first axle respectively.
Preferably, the 4th light path, the 5th light path and the 6th light path are perpendicular to this first plane.
Preferably, this Multiplexing apparatus is double image lens.
Compared with prior art, the invention provides a kind of projector, comprise light-source system, beam splitting system, multiple first reflection unit, multiple second reflection unit, multiple DMD Digital Micromirror Device, Multiplexing apparatus and projection lens, the plurality of second reflection unit, the plurality of DMD Digital Micromirror Device and this Multiplexing apparatus are positioned at this first side of this first plane, this light is divided into multiple coloured light through beam splitting system and is transmitted to the plurality of first reflection unit respectively along the light path of different directions in the first plane, the plurality of first reflection unit receives respectively and reflects the plurality of light splitting to the plurality of second reflection unit, then respectively through the reflection of multiple DMD Digital Micromirror Device as this second plane (is parallel to this first plane) the tenth light path, 11 light path and the 12 paths arrive Multiplexing apparatus and finally reach projection lens, namely the present invention adopts Three-dimensional light-splitting mode, simplify the structure, optimize space matching and reduce volume, and the present invention adopts light to be incident to the mode of this DMD Digital Micromirror Device through the minor face of DMD Digital Micromirror Device, therefore can only to arrange in pairs or groups simple X-type beam splitting system, and without the need to baroque beam splitting system, and identical effect can be reached, thus the improvement obtained on volume, reduce volume, in addition, the light path of the plurality of light splitting is identical, namely there is not optical path difference problem, therefore without the need to carrying out optical path compensation, optimize structure further, volume and weight and do not affect the quality of imaging, can widespread use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the projector 001 of first embodiment of the invention.
Fig. 2 is that the projector 001 of first embodiment of the invention is in the structural representation of other direction.
Fig. 3 is the partial structurtes schematic diagram of the projector 001 of first embodiment of the invention.
Fig. 4 is the schematic diagram of the incident DMD Digital Micromirror Device 153 of light splitting in the projector 001 of first embodiment of the invention.
Fig. 5 is another partial structurtes schematic diagram of the projector 001 of first embodiment of the invention.
Fig. 6 is the structural representation of the light-source system 11 of the projector 001 of first embodiment of the invention.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
Shown in Fig. 6, disclose the structural representation of embodiment of the present invention projector.Fig. 1 is the structural representation of the projector 001 of first embodiment of the invention, Fig. 2 is that the projector 001 of first embodiment of the invention is in the structural representation of other direction, Fig. 3 is the partial structurtes schematic diagram of the projector 001 of first embodiment of the invention, Fig. 4 is the schematic diagram of the incident DMD Digital Micromirror Device 153 of light splitting in the projector 001 of first embodiment of the invention, Fig. 5 is another partial structurtes schematic diagram of the projector 001 of first embodiment of the invention, and Fig. 6 is the structural representation of the light-source system 11 of the projector 001 of first embodiment of the invention.
Projector 001 of the present invention contains light-source system 11, beam splitting system 12, multiple first reflection unit 13, multiple second reflection unit 14, multiple DMD Digital Micromirror Device 15, Multiplexing apparatus 16 and projection lens 17.Below the concrete function of each element of this projector 001 is described.In addition, for ease of explanation, specific justice has the space of X-axis perpendicular to one another between two, Y-axis and Z axis (the first axle), wherein, this X-axis comprises the contrary X-axis positive dirction in direction and X-axis negative direction, this Y-axis comprises the contrary Y-axis positive dirction in direction and Y-axis negative direction, and this Z axis comprises Z axis positive dirction and Z axis negative direction, and the plane at this X-axis and this Y-axis place is the first plane.
This light-source system 11 is for providing light.This beam splitting system 12 is positioned in the light path of this light, in order to receive this light and to be formed in this first plane the segmentation of this light along the first coloured light, the second coloured light and the 3rd coloured light that the first light path L1 of different directions, the second light path L2 and the 3rd light path L3 propagate.Such as, this beam splitting system 12 is the beam splitting system of the beam-splitter composition of X-type.The plurality of first reflection unit 13 is respectively in order to receive and to reflect this first coloured light, this second coloured light and the 3rd coloured light that this beam splitting system 12 splits, and wherein after the plurality of first reflection unit 13 reflects, this first coloured light is propagated along the 4th light path L4, this second coloured light is propagated along the 5th light path L5, the 3rd coloured light is propagated along the 6th light path L6.Preferably, this first reflection unit 13 is catoptron, but not as limit.The plurality of second reflection unit 14 is arranged at the first side of this first plane (in Fig. 1 and Fig. 2, the plurality of second reflection unit 14 is positioned at the side of this Z axis positive dirction of this first plane), in order to receive and to reflect this first coloured light reflected through the plurality of first reflection unit 13, this second coloured light and the 3rd coloured light, wherein after the plurality of second reflection unit 14 reflects, this first coloured light is propagated along the 7th light path L7, this second coloured light is propagated along the 8th light path L8, 3rd coloured light is propagated along the 9th light path L9, wherein, 7th light path L7, 8th light path L8, 9th light path L9 is positioned at this first side of this first plane.The plurality of DMD Digital Micromirror Device 15 is arranged at this first side of this first plane, there is orthogonal first limit C and Second Edge D (shown in Figure 4) respectively, this first limit C is longer than this Second Edge D, along the 7th light path L7, this first coloured light that 8th light path L8 and the 9th light path L9 propagates, this second coloured light and the 3rd coloured light are incident to the plurality of DMD Digital Micromirror Device 15 via this Second Edge D of the plurality of DMD Digital Micromirror Device 15 and are reflected by the plurality of DMD Digital Micromirror Device 15 respectively, wherein after the plurality of DMD Digital Micromirror Device 15 reflects, this first coloured light is propagated along the tenth light path L10, this second coloured light is propagated along the 11 light path L11, 3rd coloured light is propagated along the 12 light path L12, wherein, tenth light path L10 is perpendicular to the 11 light path L11, 11 light path L11 is perpendicular to the 12 light path L12, , so that follow-up conjunction light, tenth light path L10, the 11 light path L11 and the 12 light path L12 are positioned in the second plane, and this second plane is parallel to this first plane and is positioned at this first side.Preferably, the plurality of DMD Digital Micromirror Device 15 is the convertible wafer set of two axles, but not as limit.This Multiplexing apparatus 16 is arranged at this first side of this first plane, and this first coloured light, this second coloured light and the 3rd coloured light are also carried out conjunction light by this first coloured light propagated along the tenth light path L10, the 11 light path L11 and this 12 light path L12 in order to reception, this second coloured light and the 3rd coloured light.Preferably, this Multiplexing apparatus 16 is double image lens, compared to traditional Multiplexing apparatus, this double image lens have lightweight, volume is little, cost is low and the advantage that light path is short, can certainly adopt other beam splitting systems, not as limit.This projection lens 17 in order to receive through this Multiplexing apparatus 16 transmit light and project.Wherein, the light beam that this light-source system 11 produces is divided into this first coloured light through this beam splitting system 12, after this second coloured light and the 3rd coloured light respectively along three directions successively via this first reflection unit 13, this second reflection unit 14, this digital micro-border device 15 is to this Multiplexing apparatus 16, and be incident to this projection lens 17 after closing light via this Multiplexing apparatus 16, and this first coloured light, this second coloured light is identical with the light path of the 3rd coloured light, this first coloured light i.e., there is not the problem of optical path difference in this second coloured light and the 3rd coloured light, therefore without the need to compensating light path, thus further simplify light path.And, this first plane is parallel to this second plane and all perpendicular to this Z axis, the propagation light path of this first light splitting i.e., this second light splitting and the 3rd light splitting is not limited on two dimensional surface, but the propagation in three dimensions, namely what also the present invention adopted is Three-dimensional light-splitting, therefore compared to prior art, this invention simplifies structure, optimize space matching and reduce volume.In addition, the present invention adopts light to be incident to the mode of this DMD Digital Micromirror Device 15 through the minor face of DMD Digital Micromirror Device, simple X-type beam splitting system of therefore can only arranging in pairs or groups, and without the need to baroque beam splitting system, and identical effect can be reached, thus obtain the improvement on volume, reduce volume.In the present embodiment, this light is divided into ruddiness R (the first light splitting), green glow G (the second light splitting) and blue light B (the 3rd light splitting) by this beam splitting system 12, accordingly, this projector 001 has three the first reflection units 131,132,133, three these the second reflection units, 141,142,143 and three these DMD Digital Micromirror Devices 151,152,153, but not as limit.
Shown in Fig. 3, this light A that this beam splitting system 12 sends along light path L0 in order to receive this light-source system 11, and the segmentation of this light is formed in this ruddiness R that this first plane is propagated along this Y-axis negative direction (the first light path L1), this green glow G propagated along this X-axis negative direction (the second light path L2) direction in this first plane, in this first plane along this blue light B that this Y-axis positive dirction (the 3rd light path L3) is propagated.Preferably, this first light path L1 is perpendicular to this second light path L2, and this second light path L2 is perpendicular to the 3rd light path L3.Preferably, this first light path L1, this second light path L2 and the 3rd light path L3 are 45 degree with angle E formed by this first reflection unit 131,132,133 respectively, but not as limit.Preferably, the plurality of first reflection unit 13 can be catoptron, but not as limit.
In addition, can further combined with Fig. 1 and Fig. 2, with the propagation condition of clearly this ruddiness R, this green glow G and this blue light B.As depicted in figs. 1 and 2, the plurality of second reflection unit 14 is positioned at the first side of this first plane, this ruddiness R, this green glow G and this blue light B is respectively through this first reflection unit 131, 132, 133 reflex to along the 4th light path L4, 5th light path L5 and the 6th light path L6 is transmitted to this second reflection unit 141, 142, 143, then this second reflection unit 141, 142, 143 receive along the 4th light path L4 respectively, this ruddiness R of the 5th light path L5 and the 6th light path L6, this green glow G and this blue light B also reflexes to along the 7th light path L7 respectively, 8th light path L8 and the 9th light path L9 is transmitted to this DMD Digital Micromirror Device 151, 152, 153.That is, the present invention adopts Three-dimensional light-splitting, and compared to traditional bidimensional spectroscopy, required small volume, required element is also less.Preferably, the 4th light path L4, the 5th light path L5 and the 6th light path L6 are coplanar with this Z axis respectively, and the 4th light path L4, the 5th light path L5 and the 6th light path L6 are identical with angle formed between this Z axis respectively, but not as limit.Wherein, in the present embodiment, the plurality of second reflection unit 14 is total-reflection prism group (TIR).Preferably, the 4th light path L4, the 5th light path L5 and the 6th light path L6 perpendicular to this first plane, but not as limit.
It should be noted that, as shown in Figure 4, this DMD Digital Micromirror Device 15 is the plane device of rectangle, and this first limit C parallels with this Z axis, this Second Edge D and this Z axis perpendicular (for this DMD Digital Micromirror Device 153 in figure).Shown in composition graphs 1, Fig. 2 and Fig. 4, be incident to this corresponding DMD Digital Micromirror Device 151,152,153 along the 7th light path L7, the 8th light path L8 and the 9th light path L9 via this Second Edge D of this DMD Digital Micromirror Device 151,152,153 of correspondence respectively via this ruddiness R, this green glow G after the reflection of this second reflection unit 141,142,143 and this blue light B respectively.Because this ruddiness R of the present invention, this green glow G and this blue light B are incident to this corresponding DMD Digital Micromirror Device 151,152,153 via the minor face (this Second Edge D) of this DMD Digital Micromirror Device 151,152,153 of correspondence, therefore, the present invention can only use simple beam splitting system, the beam splitting system that such as X-type divides tabula rasa Group to become or the X-type prism splitter system with plated film, and without the need to baroque beam splitting system, and identical effect can be reached, obtain the improvement on volume, reduce volume.Preferably, the 7th light path L7, the 8th light path L8 and the 9th light path L9 respectively perpendicular to this this Second Edge of DMD Digital Micromirror Device 151,152,153 D of correspondence, but not as limit.
Further, as shown in Figure 5, three these DMD Digital Micromirror Devices 151, 152, 153 respectively in order to receive this ruddiness R, this green glow G and this blue light B also reflexes to this Y-axis positive dirction (the tenth light path L10) respectively, this X-axis positive dirction (the 11 light path L11) and this Y-axis negative direction (the 12 light path L12) are transmitted to this Multiplexing apparatus 16, wherein, tenth light path L10, 11 light path L11 and the 12 light path L12 is positioned at same plane, this second plane i.e., and the tenth light path L10, coplanar and the tenth light path L10 of 11 light path L11 and the 12 light path L12 is perpendicular to the 11 light path L11, 11 light path L11 is perpendicular to the 12 light path L12, be convenient to close light with this.And the tenth light path L10, the 11 light path L11 and the 12 light path L12 penetrate this second reflection unit 141,142,143 is respectively transmitted to this Multiplexing apparatus 16.Preferably, the tenth light path L10, the 11 light path L11 and the 12 light path L12 respectively perpendicular to the plane at this DMD Digital Micromirror Device 151,152,153 place, but not as limit.
It should be noted that, this ruddiness R to arrive this Multiplexing apparatus 16 by this beam splitting system 12 light path through multiple optical element is identical with the light path that this green glow G arrives this Multiplexing apparatus 16 by this beam splitting system 12 through multiple optical element, and it is identical with the light path that this blue light B arrives this projection lens 17 by this beam splitting system 12 through multiple optical element, therefore there is not optical path difference, without the need to carrying out optical path compensation, further simplify structure, optimize space and volume, and do not affect image quality.
Further, as shown in Figure 6, this light-source system 11 comprises light source 111, light homogenizer 112, reflection unit 113 and lens 114, this light source 111 is in order to provide light along Z axis positive dirction, this light homogenizer 112 is in order to homogenising and guide this light along this Z axis positive dirction, this reflection unit 113 in order to receive along this Z axis positive dirction propagate this light and reflex to along this X-axis negative direction propagate, these lens 114 in order to receive along this X-axis negative direction propagate this light, can coalescence guide this light to this beam splitting system 12 along this X-axis negative direction (light path L0).Certainly, the structure of this light-source system 11 and element, not as limit, meet this projector 001 to project out the light of requirement of high grade picture as long as can provide, specifically determined according to actual conditions by designer.
In sum, the invention provides a kind of projector, comprise light-source system, beam splitting system, multiple first reflection unit, multiple second reflection unit, multiple DMD Digital Micromirror Device, Multiplexing apparatus and projection lens, the plurality of second reflection unit, the plurality of DMD Digital Micromirror Device and this Multiplexing apparatus are positioned at the first side of this first plane, this light is divided into multiple coloured light through beam splitting system and is transmitted to the plurality of first reflection unit respectively along the light path of different directions in the first plane, the plurality of first reflection unit receives respectively and reflects the plurality of light splitting to the plurality of second reflection unit, then respectively through the reflection of multiple DMD Digital Micromirror Device as this second plane (is parallel to this first plane) the tenth light path, 11 light path and the 12 paths arrive Multiplexing apparatus and finally reach projection lens, namely the present invention adopts Three-dimensional light-splitting mode, simplify the structure, optimize space matching and reduce volume, and the present invention adopts light to be incident to the mode of this DMD Digital Micromirror Device through the minor face of DMD Digital Micromirror Device, therefore can only to arrange in pairs or groups simple X-type beam splitting system, and without the need to baroque beam splitting system, and identical effect can be reached, thus the improvement obtained on volume, reduce volume, in addition, the light path of the plurality of light splitting is identical, namely there is not optical path difference problem, therefore without the need to carrying out optical path compensation, optimize structure further, volume and weight and do not affect the quality of imaging, can widespread use.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (11)
1. a projector, is characterized in that, comprises:
Light-source system, for providing light;
Beam splitting system, is positioned in the light path of this light, in order to receive this light and to be formed in the first plane the segmentation of this light along the first coloured light of the first light path of different directions, the second light path and the 3rd paths, the second coloured light and the 3rd coloured light;
Multiple first reflection unit, respectively in order to receive and to reflect this first coloured light, this second coloured light and the 3rd coloured light that this beam splitting system splits, wherein after the plurality of first reflection unit reflection this first coloured light along the 4th paths, this second coloured light along the 5th paths, the 3rd coloured light along the 6th paths;
Multiple second reflection unit, be arranged at the first side of this first plane, in order to receive and to reflect this first coloured light, this second coloured light and the 3rd coloured light that reflect through the plurality of first reflection unit, wherein after the plurality of second reflection unit reflection, this first coloured light is along the 7th paths, this second coloured light along the 8th paths, the 3rd coloured light along the 9th paths, and the 7th light path, the 8th light path, the 9th light path are positioned at this first side of this first plane;
Multiple DMD Digital Micromirror Device, be arranged at this first side of this first plane, there is orthogonal first limit and Second Edge respectively, this first length of side is in this Second Edge, along the 7th light path, this first coloured light of 8th light path and the 9th paths, this second coloured light and the 3rd coloured light are incident to the plurality of DMD Digital Micromirror Device via this Second Edge of the plurality of DMD Digital Micromirror Device and are reflected by the plurality of DMD Digital Micromirror Device respectively, wherein after the plurality of DMD Digital Micromirror Device reflection, this first coloured light is along the tenth paths, this second coloured light is along the 11 paths, 3rd coloured light is along the 12 paths, wherein, tenth light path is perpendicular to the 11 light path, 11 light path is perpendicular to the 12 light path, tenth light path, 11 light path and the 12 light path are positioned in the second plane, and this second plane is parallel to this first plane and is positioned at this first side of this first plane,
Multiplexing apparatus, be arranged at this first side of this first plane, in order to receive along this first coloured light of the tenth light path, the 11 light path and this 12 paths, this second coloured light and the 3rd coloured light and this first coloured light, this second coloured light and the 3rd coloured light are carried out conjunction light; And
Projection lens, in order to receive the light that transmits through this Multiplexing apparatus and to project;
Wherein, the light beam that this light-source system produces through this beam splitting system to be divided into after this first coloured light, this second coloured light and the 3rd coloured light respectively along three directions successively via this first reflection unit, this second reflection unit, this digital micro-border device to this Multiplexing apparatus, and be incident to this projection lens after closing light via this Multiplexing apparatus, and this first coloured light, this second coloured light are identical with the light path of the 3rd coloured light.
2. projector as claimed in claim 1, is characterized in that, this DMD Digital Micromirror Device is the convertible DMD Digital Micromirror Devices of two axles.
3. projector as claimed in claim 1, it is characterized in that, the plurality of second reflection unit is total-reflection prism group.
4. projector as claimed in claim 1, is characterized in that, this first light path perpendicular to this second light path, this second light path perpendicular to the 3rd light path.
5. projector as claimed in claim 1, it is characterized in that, this first limit of the plurality of DMD Digital Micromirror Device is perpendicular to this first plane, and this Second Edge is parallel to this first plane.
6. projector as claimed in claim 1, it is characterized in that, the 7th light path, the 8th light path and the 9th light path are respectively perpendicular to this Second Edge of this DMD Digital Micromirror Device of correspondence.
7. projector as claimed in claim 1, it is characterized in that, the tenth light path, the 11 light path and the 12 light path are respectively perpendicular to the plane at the plurality of DMD Digital Micromirror Device place.
8. projector as claimed in claim 1, is characterized in that, this first light path, this second light path and the 3rd light path are 45 degree with angle formed by this corresponding first reflection unit respectively.
9. projector as claimed in claim 1, it is characterized in that, definition has the first axle, this first axle is perpendicular to this first plane, 4th light path, the 5th light path and the 6th light path are coplanar with this first axle respectively, and the 4th light path, the 5th light path and the 6th light path are identical with angle formed by this first axle respectively.
10. projector as claimed in claim 1, it is characterized in that, the 4th light path, the 5th light path and the 6th light path are perpendicular to this first plane.
11. projectors as claimed in claim 1, it is characterized in that, this Multiplexing apparatus is double image lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152206.0A CN104749869A (en) | 2015-04-01 | 2015-04-01 | Projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152206.0A CN104749869A (en) | 2015-04-01 | 2015-04-01 | Projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104749869A true CN104749869A (en) | 2015-07-01 |
Family
ID=53589782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152206.0A Pending CN104749869A (en) | 2015-04-01 | 2015-04-01 | Projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749869A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110677633A (en) * | 2019-10-12 | 2020-01-10 | 广东联大光电有限公司 | DLP projector capable of eliminating color deviation |
| CN110677632A (en) * | 2019-10-12 | 2020-01-10 | 广东联大光电有限公司 | DLP projector capable of improving color uniformity of projected image |
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| JPH10197949A (en) * | 1997-01-01 | 1998-07-31 | Victor Co Of Japan Ltd | Projection type display device |
| JP2003057744A (en) * | 2001-08-14 | 2003-02-26 | Nikon Corp | Projection type display device |
| JP2004240022A (en) * | 2003-02-04 | 2004-08-26 | Nikon Corp | Projection display apparatus |
| JP2004279705A (en) * | 2003-03-14 | 2004-10-07 | Victor Co Of Japan Ltd | Image display apparatus |
| CN1677219A (en) * | 2004-03-31 | 2005-10-05 | 富士能株式会社 | Projector |
| CN103075711A (en) * | 2012-12-20 | 2013-05-01 | 苏州奥浦迪克光电技术有限公司 | Bidirectional reflection lens light transmitting device |
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| JPH10197949A (en) * | 1997-01-01 | 1998-07-31 | Victor Co Of Japan Ltd | Projection type display device |
| JP2003057744A (en) * | 2001-08-14 | 2003-02-26 | Nikon Corp | Projection type display device |
| JP2004240022A (en) * | 2003-02-04 | 2004-08-26 | Nikon Corp | Projection display apparatus |
| JP2004279705A (en) * | 2003-03-14 | 2004-10-07 | Victor Co Of Japan Ltd | Image display apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110677633A (en) * | 2019-10-12 | 2020-01-10 | 广东联大光电有限公司 | DLP projector capable of eliminating color deviation |
| CN110677632A (en) * | 2019-10-12 | 2020-01-10 | 广东联大光电有限公司 | DLP projector capable of improving color uniformity of projected image |
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Application publication date: 20150701 |