CN1570708A - Display system - Google Patents
Display system Download PDFInfo
- Publication number
- CN1570708A CN1570708A CN 03147641 CN03147641A CN1570708A CN 1570708 A CN1570708 A CN 1570708A CN 03147641 CN03147641 CN 03147641 CN 03147641 A CN03147641 A CN 03147641A CN 1570708 A CN1570708 A CN 1570708A
- Authority
- CN
- China
- Prior art keywords
- light
- concentrating component
- filter
- display system
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
A display system comprises a light source; a first focusing elements used to receive light from light source and spliter the light into several light beam; second focusing element located multiple focusing units corresponding to light beam of first focusing elements and let the light beams of first focusing elements separately pass through these focusing element and the second focusing element corresponds with the other surface of first focusing element where located reflecting surface; a light filter used to filter light beam from second focusing element with some light beam reflected by these reflecting surface; an adjusting element used to receive light beam from the light filter; a projecting element used to project the light beam from the adjusting element to a screen; wherein the light beam reflected by the filter is largely reflected into inflecting surface of second focusing element and then is reflected back into the filter by these reflecting surfaces.
Description
Technical field
The invention relates to a kind of display system, particularly close a kind of catoptrical display system of utilizing again.
Background technology
With reference to figure 1, Fig. 1 is the partial schematic diagram that shows well-known display system.As shown in Figure 1, well-known display system mainly comprises a light source 100; The concentrating component 110 and 120 of one group of lens array, the concentrating component 110 and 120 of this group lens array is used for the parallel rays from light source is divided into a plurality of light beams; One lens 130, these lens are used for a plurality of light beams of superposition from concentrating component 110 and 120, and make the equalizing light rays of superposition; An and rotary light filter 140, this rotary light filter 140 is to make its rotation by a motor 150, so when the time from the irradiate light of lens 130 light filter 140 in rotation, to be produced the three primary colors of red (R), green (G), blue (B), therefore, can utilize trichromatic light beam to reach the effect of full-color video picture.
Specifically, with reference to figure 5, in one embodiment, the surface of this light filter 140 forms the three primary colors filter membrane of shape configuration in the shape of a spiral usually, be red filter membrane R, green filter membrane G, and blue filter membrane B, so light is when given time is radiated at the light filter 140 of rotation, light filter 140 can produce the three primary colors light beam in regular turn after filtration.When using display system, when the red film of white light at light filter 140, both are reflected green beam and blue light beam and filtering by light filter 140, so the brightness of the red beam that produces by light filter 140 is only about 1/3rd for original light luminance, also be that light filter 140 will be wasted about 2/3rds original light.So in well-known display system, not only can't utilize the light of light filter 140 reflections about 2/3rds again, more will raise owing to reflection ray causes the temperature of display system.
Summary of the invention
Therefore, a purpose of the present invention provides a kind of display system, and it can make full use of the light of reflection from light filter, thus improve display system in the light utilization ratio and strengthen the display quality of image.
Display system according to the first enforcement sample attitude of the present invention comprises: a light source; One first concentrating component, this first concentrating component be for the light beam that receives this light source, is a plurality of light beams with the light beam segregation of this light source; One second concentrating component, this second concentrating component is provided with a plurality of optically focused units to light beam that should first concentrating component, make these light beams of first concentrating component pass through these optically focused units respectively, the face in addition of corresponding first concentrating component of this second concentrating component, these optically focused units are provided with reflective surface; One light filter, this light filter is in order to filter the light beam from this second concentrating component, and the light beam that partly is reflected back toward is these reflective surfaces that reflex on second concentrating component simultaneously; One modulation component, this modulation component is for being received from the light beam that this light filter comes; Reach one and throw assembly, this projection assembly is for amplification and throw light beam to a screen next by this modulation component; Wherein, by this light filter beam reflected, be that major part is reflected onto the reflective surface in these units of second concentrating component, make these reflectings surface again beam reflection be returned light filter.
Preferably, this first concentrating component and this second concentrating component are to be the lens array, and the lens array of this second concentrating component is in a plurality of optically focused units of the one side of facing light filter, and being provided with a width is the wide reflective surfaces of 1/2nd optically focused units.
Again, preferably, this light filter is to be a colour wheel.
Again, preferably, this light source is a parabolic arc lamp.
Preferably, be provided with one between this second concentrating component and this light filter and assemble lens set, the distance that can significantly dwindle this second concentrating component and this light filter by this convergence lens set again.
Again, preferably, this convergence lens set is to assemble eyeglass for two separation.
Display system according to the second enforcement sample attitude of the present invention comprises: a light source, and this light source provides the three primary colors light source; One first concentrating component, this first concentrating component be for the light beam that receives this light source, is a plurality of light beams with the light beam segregation of this light source; One second concentrating component, this second concentrating component are provided with a plurality of optically focused units to light beam that should first concentrating component, the face in addition of corresponding first concentrating component of this second concentrating component, and these units are provided with reflective surface; One rotary filter, this rotary filter is in order to filter the three primary colors light beam from this second concentrating component in proper order, and the light beam that partly is reflected back toward is these reflective surfaces that reflex on second concentrating component simultaneously; One modulation component, this modulation component is for receiving the light beam that passes this light filter; Reaching a projection assembly, is for light beam to a screen that amplifies and projection is next by this modulation component; Wherein, by this light filter beam reflected, be that major part is reflected onto the reflective surface in these units of second concentrating component, make these reflectings surface again beam reflection be returned light filter.
Preferably, this first concentrating component and this second concentrating component are to be the lens array, and the lens array of this second concentrating component is on a plurality of lens arrays away from the one side of first concentrating component, and being provided with a width is the wide reflective surfaces of 1/2nd optically focused units.
Again, preferably, on a plurality of lens arrays of this lens array, being respectively equipped with a width is the wide reflective surfaces of 1/2nd optically focused units.
Again, preferably, this rotary filter is to be a colour wheel.
Again, preferably, this rotary filter is one to have the colour wheel of spiral color separation filter membrane.
Again, preferably, this light source is a parabolic arc lamp.
Preferably, be provided with one between this second concentrating component and this light filter and assemble lens set, the distance that can significantly dwindle this second concentrating component and this light filter by this convergence lens set again.
Again, preferably, this convergence lens set is to assemble eyeglass for two separation.
Description of drawings
Fig. 1 shows the partial schematic diagram of well-known display system.
Fig. 2 shows the synoptic diagram of the display system of the first embodiment of the present invention.
Fig. 3 shows the arrangement plan of the reflective surface of second concentrating component of the present invention.
Fig. 4 shows second embodiment of the present invention figure.
Fig. 5 shows the light filter local surfaces figure of an embodiment.
Accompanying drawing parts symbol description:
10,100 light sources
11,110 first concentrating components
12,120 second concentrating components
122 optically focused units
13,16 assemble lens set
130 lens
14,14 ', 140 light filters
15,150 motors
17 reflective surfaces
18 modulation components
19 projection assemblies
20 relay lenss
Embodiment
With reference to figure 2, Fig. 2 is the display system that shows the first embodiment of the present invention.
The display system of present embodiment not only make full use of the reflection ray of light filter 14 and improve display system in the light utilization ratio, and can prevent that the temperature of display system from raising.
Specifically, the display system of present embodiment except have the well-known display system that is equal to Fig. 1 in assembly, be light source 10, lens array first concentrating component 11, second concentrating component 12, lens 13, light filter 14, and motor 15 outside, also have: lens 16, constitute the convergence lens set with lens 13, can significantly dwindle the distance of second concentrating component 12 and light filter 14 by this convergence lens set; Reflective surface 17, be arranged on facing on the one side of light filter 14 of second concentrating component 12, and as shown in Figure 3, the width that makes reflective surface 17 be the optically focused unit 122 of second concentrating component 12 wide 1/2nd, can make the reflection ray of light filter 14 just incide each reflective surface 17, reflex to light filter 14 and passed light filter 14 again by reflective surface 17 again; One group of relay lens (Relay lens) 20 improves for the light optically focused of light filter 14 outputs also can be made aberration further; One modulation component 18, this modulation component 18 is to be a digital micro-mirror display panel (DMD in the present embodiment, Digital Mirror Device), do not limit to this kind form panel when only implementing, this modulation component 18 is the light that is used to receive from relay lens 20; And a projection assembly 19, be used to amplify from the light of modulation component 18 and be projected to a screen.
When the light from the first half of each optically focused unit 122 of second concentrating component 12 is incident to light filter 14 and reflex time, certainly will reflex on the same optically focused unit 122 below reflective surfaces 17, then reflective surface 17 can be again with light reflected back light filter 14, the utilization of light filter 14 reflection rays so be increased, and then the quality of image of enhancement display system.The effect that the inventor can utilize the reflection ray of existing light filter 14 for the display system of verifying present embodiment and well-known display system, be that below Theoretical Calculation implements the effect that present embodiment produced: the luminous flux of supposing light filter 14 is 1/3, and then the display system of the present embodiment total light flux that utilizes the reflected light of light filter 14 to reach again is:
The display system of present embodiment: 1/3+ (2/3 * 1/3)=5/9 55.6%.
As from the foregoing, it is that can't to utilize the reflected light of light filter 14 again than well-known display system be good that the display system of present embodiment is utilized the total light flux that the reflected light of light filter 14 can reach (promptly 55.6%) again, so be enough to improve display system in the light utilization ratio and significantly improve brightness, prevent that simultaneously the temperature of display system from raising.
With reference to figure 4, Fig. 4 shows second embodiment of the present invention figure, wherein the display system of present embodiment is except replacing rotary light filter 14 with fixed light filter 14 ', remaining assembly and Fig. 2 are all identical, wherein, this fixed light filter 14 ' is the monochromatic filter coating that is sticked, and as red filter coating, its luminous flux is about 1/2.
In addition, the inventor is 1/2 to implement the effect that present embodiment was produced with the luminous flux of Theoretical Calculation light filter further: the luminous flux of supposing light filter is 1/2, and then the display system of the present embodiment total light flux that utilizes the reflected light of light filter to reach again is:
The display system of present embodiment: 1/2+ (1/2 * 1/2)=3/4=75%.
As from the foregoing, it is that can't to utilize the reflected light of light filter again than well-known display system be good that the display system of present embodiment is utilized the total light flux that the reflected light of light filter can reach (promptly 75%) again, so be enough to improve display system in the light utilization ratio and significantly improve brightness, prevent that simultaneously the temperature of display system from raising.
Therefore, be similar to the display system of first embodiment, when the light from the first half of each optically focused unit 122 of second concentrating component 12 is incident to light filter 14 ' and reflex time, certainly will reflex to the reflective surface 17 of same optically focused unit 122, so be able to reflected back light filter 14 ' again, and then improve the display quality of display system.
Above-described, only in order to be used for convenient explanation the preferred embodiments of the present invention, and be not with narrow sense of the present invention be limited to the preferred embodiment.All according to any change that the present invention did, all belong to the scope that the present invention weighs patent claim.
Claims (15)
1. display system comprises:
One light source;
One first concentrating component, this first concentrating component be for the light beam that receives this light source, is a plurality of light beams with the light beam segregation of this light source;
One second concentrating component, this second concentrating component is provided with a plurality of optically focused units to light beam that should first concentrating component, only these light beams of first concentrating component pass through these optically focused units respectively, the face in addition of corresponding first concentrating component of this second concentrating component, and these optically focused units are provided with reflective surface;
One light filter, this light filter is in order to filter the light beam from this second concentrating component, and the light beam that partly is reflected back toward is these reflective surfaces that reflex on second concentrating component simultaneously;
One modulation component, this modulation component is for being received from the light beam that this light filter comes; And
One projection assembly, this projection assembly is for light beam to a screen that amplifies and projection is come by this modulation component;
Wherein, by this light filter beam reflected, be that major part is reflected onto the reflective surface in these units of second concentrating component, make these reflectings surface again beam reflection be returned light filter.
2. display system as claimed in claim 1, it is characterized in that: this first concentrating component and this second concentrating component are to be the lens array, the lens array of this second concentrating component is provided with a width and is two minutes the wide reflective surface of lens on a plurality of lens arrays away from the one side of first concentrating component.
3. display system as claimed in claim 1 is characterized in that: this light filter is to be a colour wheel.
4. display system as claimed in claim 1 is characterized in that: this light source is a parabolic arc lamp.
5. display system as claimed in claim 1 is characterized in that: be provided with one between this second concentrating component and this light filter and assemble lens set, the distance that can significantly dwindle this second concentrating component and this light filter by this convergence lens set.
6. display system as claimed in claim 1 is characterized in that: also comprise a relay lens, this relay lens is for the light that receives this light filter output, and with light optically focused on this modulation component.
7. display system as claimed in claim 5 is characterized in that: this convergence lens set is to assemble eyeglass for two separation.
8. display system comprises:
One light source, this light source provides the three primary colors light source;
One first concentrating component, this first concentrating component be for the light beam that receives this light source, is a plurality of light beams with the light beam segregation of this light source;
One second concentrating component, this second concentrating component are provided with a plurality of optically focused units to light beam that should first concentrating component, the face in addition of corresponding first concentrating component of this second concentrating component, and these units are provided with reflective surface;
One rotary filter, this rotary filter is in order to filter the three primary colors light beam from this second concentrating component in proper order, these reflective surfaces on beam reflection to the second concentrating component that the while part is reflected back toward;
One modulation component, this modulation component is for receiving the light beam that passes this rotary filter; And
One projection assembly, this projection assembly is for light beam to a screen that amplifies and projection is come by this modulation component;
Wherein, by this rotary filter beam reflected, be that major part is reflected onto the reflective surface in these units of second concentrating component, make these reflectings surface commentaries on classics light filter that again beam reflection circled round.
9. display system as claimed in claim 8, it is characterized in that: this first concentrating component and this second concentrating component are to be the lens array, the lens array of this second concentrating component is on a plurality of lens arrays of the one side of facing light filter, and being provided with a width is the wide reflective surfaces of 1/2nd lens.
10. display system as claimed in claim 8 is characterized in that: on a plurality of lens arrays of this lens array, being respectively equipped with a width is the wide reflective surfaces of 1/2nd lens.
11. display system as claimed in claim 8 is characterized in that: this rotary filter is to be a colour wheel.
12. display system as claimed in claim 8 is characterized in that: this light source is a parabolic arc lamp.
13. display system as claimed in claim 8 is characterized in that: be provided with one between this second concentrating component and this rotary filter and assemble lens set, the distance that can significantly dwindle this second concentrating component and this rotary filter by this convergence lens set.
14. display system as claimed in claim 8 is characterized in that: this convergence lens set is to assemble eyeglass for two separation.
15. display system as claimed in claim 8 is characterized in that: also comprise a relay lens, this relay lens is for the light that receives this light filter output, and with light optically focused on this modulation component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147641 CN1570708A (en) | 2003-07-15 | 2003-07-15 | Display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147641 CN1570708A (en) | 2003-07-15 | 2003-07-15 | Display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1570708A true CN1570708A (en) | 2005-01-26 |
Family
ID=34472004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03147641 Pending CN1570708A (en) | 2003-07-15 | 2003-07-15 | Display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1570708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936459B (en) * | 2009-07-02 | 2012-09-05 | 台达电子工业股份有限公司 | Composite light source system |
| CN103728726A (en) * | 2012-10-15 | 2014-04-16 | 台达电子工业股份有限公司 | Display light source |
-
2003
- 2003-07-15 CN CN 03147641 patent/CN1570708A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936459B (en) * | 2009-07-02 | 2012-09-05 | 台达电子工业股份有限公司 | Composite light source system |
| CN103728726A (en) * | 2012-10-15 | 2014-04-16 | 台达电子工业股份有限公司 | Display light source |
| CN103728726B (en) * | 2012-10-15 | 2016-03-09 | 台达电子工业股份有限公司 | Display light source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100345451C (en) | Color management system | |
| CN1206865C (en) | System and method employing LED light sources for a projection display | |
| CN1114120C (en) | Reflection type projector | |
| CN1218204C (en) | High efficiency two-SLM projector employing total-internal-reflection prism | |
| US20030016335A1 (en) | SLM projection display with series DMD illuminator | |
| CN1071527C (en) | Projection-type color display device | |
| US7233450B2 (en) | Reflective color wheel | |
| CN1605041A (en) | Color pre-filter for single-panel projection display system | |
| US20040057022A1 (en) | Projector apparatus | |
| CN1156725C (en) | Projector | |
| CN100549808C (en) | Optical projection system | |
| CN1619355A (en) | Color projection type display apparatus reusing incident light | |
| JP2001515609A (en) | Multi color band light source | |
| CN1842149A (en) | Optical structure for projection system | |
| CN1490664A (en) | Color luminating system with special light modifier having multiple double distanct center inverters | |
| WO1994023540A1 (en) | Single projection lens color projection system | |
| CN1790096A (en) | Projection system with total reflection prism | |
| JP2002040416A (en) | Single plate type liquid crystal projector | |
| CN1570708A (en) | Display system | |
| CN1278163C (en) | Projector | |
| JP2001183603A (en) | Projection display device | |
| US6429975B1 (en) | Illumination optical system and projector using same | |
| EP1627527B1 (en) | Illumination system for videoprojector utilizing one or more led diodes matrices | |
| CN1525199A (en) | Image photogeneration apparatus and projection type image display | |
| CN1723409A (en) | Image display unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |