CN103375774A - Color wheel module and projector - Google Patents
Color wheel module and projector Download PDFInfo
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- CN103375774A CN103375774A CN2013103114457A CN201310311445A CN103375774A CN 103375774 A CN103375774 A CN 103375774A CN 2013103114457 A CN2013103114457 A CN 2013103114457A CN 201310311445 A CN201310311445 A CN 201310311445A CN 103375774 A CN103375774 A CN 103375774A
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- colour wheel
- lid
- runner assembly
- opening
- light
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Abstract
The invention provides a color wheel module and a projector. The color wheel module comprises a color wheel support, a color wheel, a rotation assembly, a position indicator, a cover and a light sensor; the color wheel support is provided with a first plane; the rotation assembly is fixedly connected with the color wheel, drives the color wheel to rotate and is provided with a first surface, a second surface and a side wall, the first surface and the color wheel are assembled together, the second surface is matched with the first plane of the color wheel support, and the side wall is positioned between the first surface and the second surface; the position indicator is arranged on the side wall of the rotation assembly; the cover is fixed to the color wheel support and is provided with a mounting plane which can absorb interference light, the mounting plane is provided with a first opening, and a half of the rotation assembly is surrounded by the cover; the light sensor is opposite to the first opening of the cover and is used for detecting the position of the position indicator so as to acquire the position of the color wheel.
Description
Technical field
The invention relates to a kind of colour wheel module and have the projecting apparatus of this colour wheel module, especially relate to a kind of colour wheel module that reduces light disturbance.
Background technology
At present, projecting apparatus mainly is divided into two kinds of LCD formula and DLP formulas (Digital light processing), wherein the DLP projecting apparatus adopts and is called for short DMD (Digital Micromirror Device) micromirror reflection technology, and employing colour wheel (color wheel) is finished separation and processing to color.
In the DMD optical projection system, the white light that light source sends focuses on the colour wheel by condenser lens, colour wheel mainly is by the colored filters such as red, green, blue combination (more colors can certainly be arranged according to actual needs), by high-speed motor colored filter is rotated, so that white light is carried out color separation, then with the beam emissions of particular color to the DMD surface.The DMD surface is comprised of the small reflector corresponding with pixel quantity, and these small reflectors rotate according to the control of vision signal.When small reflector turns to the lens of its folded light beam process projecting apparatus, represent that this pixel opens, when small reflector turns to its folded light beam and departs from the lens of projecting apparatus, represent that this pixel closes, the time of opening and closing is than the brightness of this pixel of expression.When ruddiness is mapped on the DMD surface, eyeglass on the DMD rotates to these small mirrors according to red video signal and opens or closes, so that need the lens of the folded light beam process projecting apparatus of demonstration to project on the giant-screen, green and blue light and vision signal also are work like this, and human vision system concentrates the red, green, blue picture that projects just to see a full-color image.
With reference to shown in Figure 1, be the structural representation of existing colour wheel module 900.Colour wheel module 900 comprises colour wheel 90, runner assembly 91, motor 92, the positioning index 93 of pasting or be coated on runner assembly 91 sidewalls, sensor 94 and processor 95.Colour wheel 90 is provided with red filter area 901, green filter area 902, blue filter area 903, and the three is fan-shaped and consists of a disk.Colour wheel 90 is installed on the runner assembly 91, and motor 92 drives runner assembly 91 and rotates, and rotates thereby drive colour wheel 90.Positioning index 93 is conducive to help the position of Red lightscreening plate 901, green color filter 902, blue color filter 903 in the current colour wheel 90 of projecting apparatus identification.In addition, the sidewall of runner assembly 91 is different with the color of positioning index 93, and positioning index 93 can not reflection ray, but and the sidewall reflection ray of runner assembly 91.
When positioning index 93 is arranged at 901 sections of the Red lightscreening plates of the sidewall of runner assembly 91 and corresponding colour wheel 90, sensor 94 continual emission light beams 96 are to the sidewall of runner assembly 91, when light beam 96 is mapped on the positioning index 93 just, this light beam 96 is absorbed by positioning index 93, this moment, this light beam 96 can not reflex on the sensor 94, therefore, sensor 94 just can pick out the position of the Red lightscreening plate 901 of colour wheel 90, and the situation of current colour wheel 90 passed to processor 95, processor 95 is according to the eyeglass switch on the rotation situation of the colour wheel 90 control DMD, through projection lens that each color is synthetic after with image projection to screen.In addition because the position between each colo(u)r filter of colour wheel 90 distributes in advance, processor 95 according to the position of a monochromatic filter just deducibility go out the turned position of whole colour wheel 90 so that processor 95 accurately control the opportunity of each color of switching.As seen, in the colour wheel 90 of High Rotation Speed, projecting apparatus directly affects the color quality of video picture to the identification of the current color of colour wheel 90.
Yet projecting apparatus is the high brightness product, can be in casing produces many spuious light beams, i.e. stray light, and the sensor 94 of prior art is that directly to be exposed to above-mentioned veiling glare intrafascicular.Spuious light beam can be directly into being incident upon on the sensor 94, so with the sensitivity of image sensor 94, the nonsynchronous problem of sequential between processor and the colour wheel occurs easily, further image processor carries out the synthetic processing of follow-up color, thereby cause image quality unintelligible, color is existing not bright.For example, if spuious light beam is abundant, then sensor 94 can mistake be recognized as folded light beam with the spuious light beam of incident in it, causes the sensor reliability to reduce.This problem will cause projecting apparatus can't start shooting or start shooting rear unusual etc., affect the user and experience and plant produced line yield.
Therefore, be necessary to design a kind of novel colour wheel module and projecting apparatus, to overcome defects.
Summary of the invention
The object of the present invention is to provide a kind of colour wheel module and projecting apparatus, with the interference of reduce disturbance light to this colour wheel module.
For achieving the above object, a kind of colour wheel module of the present invention comprises,
The colour wheel support has first surface;
Colour wheel;
Runner assembly, be fixedly connected to drive this colour wheel rotation with this colour wheel, and this runner assembly has first surface, second surface and sidewall, this first surface is assembled mutually with this colour wheel, the first surface of this second surface and this colour wheel support matches, and this sidewall is between this first surface and this second surface;
Positioning index is arranged on the sidewall of this runner assembly;
Lid fixes with this colour wheel support, has the installed surface that absorbs stray light, and this installed surface has the first opening, and this this runner assembly of lid semi-surrounding;
Optical inductor is oppositely arranged with the first opening of this lid, is used for the position of this positioning index of detecting to obtain the position of this colour wheel;
Wherein, this colour wheel support, this runner assembly, this colour wheel are along the normal direction setting of this colour wheel, and this runner assembly is between this colour wheel support and this colour wheel; This runner assembly, this lid and this optical sensor be along the first direction setting, and this lid and this optical sensor are arranged at the homonymy of this runner assembly; The normal direction of this first direction and this colour wheel is perpendicular.
Better, this colour wheel support also has and perpendicular second of this first surface, and this second is used for setting firmly this lid, and this second face is provided with the second opening, this second opening is corresponding with this first opening and this optical inductor, and the edge of this second opening is provided with light-absorbing coating; This lid is positioned at the zone that this first surface and this second face surround.
Better, this colour wheel module also comprises tablet, this tablet and this lid lay respectively at the both sides of this colour wheel support, and this tablet be used for to drive this optical inductor, and this tablet one side that this optical inductor is set is black or dark or this tablet integral body is black or dark color.
Better, this installed surface is curved; And this lid forms the shed space, and the part of this runner assembly is positioned at this shed space.
Better, this lid integral body is black or dark color, is used for absorbing stray light.This lid is made by plastic cement, and because of the black raw material that adds in its plastic material so that its appearance is black, perhaps make its appearance be black because the surface is provided with black coating.
Better, further comprising the colour wheel protective cover, this lid and this colour wheel are positioned at the shed space that this colour wheel protective cover forms.
For achieving the above object, the second technical scheme of the present invention provides a kind of projecting apparatus, comprises such as the described colour wheel module of the first technical scheme, comprise in addition,
Light source assembly comprises light source and connector, and this light source is in order to send an illuminating bundle, and this connector is provided with the 3rd, and the 3rd face is provided with the 3rd opening, uses for this illuminating bundle and passes through;
Light valve is disposed on the light path of this illuminating bundle, in order to this illuminating bundle is converted to an image strip;
Projection lens is disposed on the light path of this image strip, in order to project this image strip.
Better, this illuminating bundle is by forming an incident beam behind this colour wheel, and this incident beam and this optical sensor are positioned at the different both sides of this runner assembly.
This better connector also comprises the fourth face that is connected with the 3rd edge, and this fourth face and the corresponding setting in the edge of this colour wheel are used for covering this colour wheel.
Compared with prior art, colour wheel module of the present invention and projecting apparatus with this colour wheel module are by this runner assembly of lid semi-surrounding, and this lid installed surface corresponding with this optical inductor can absorb stray light, thereby reduce the interference to optical inductor, improved the reliability of the position of the colour wheel that this optical inductor detects, thereby improved the global reliability of whole colour wheel module, and simple in structure, be convenient to make and install.
Description of drawings
Fig. 1 is the structural representation of colour wheel module of the prior art.
Fig. 2 is the module diagram of a kind of projecting apparatus of the present invention.
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of the projecting apparatus among Fig. 2.
Fig. 4 is the structural representation of the colour wheel module among Fig. 3.
Fig. 5 is the schematic diagram after the part-structure of the colour wheel module of projecting apparatus of the present invention is assembled.
The specific embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, hereby cooperate embodiment to be described in detail as follows.
To shown in Figure 5, be the structural representation of a kind of projecting apparatus 100 of the present invention with reference to Fig. 2.This projecting apparatus 100 comprises light projector source component 1, colour wheel module 2, light valve 3 and projection lens 4, wherein this light source assembly 1 is used for providing projecting apparatus 100 required light source, colour wheel module 2 is used for receiving the light beam that this light source assembly 1 sends and converts thereof into the substantially light that needs, then this basic light will enter to inject in the light valve 3, be processed into the demonstration image through light valve 3, then this demonstration image projects on the projection screen through projection lens 4.
Wherein, light source assembly 1 comprises light source 10 and connector 11.This light source 10 is in order to send illuminating bundle.This connector 11 is provided with the 3rd 110, the three 110 and is provided with the 3rd opening 111, the three openings 111 usefulness and passes through for this illuminating bundle, so that the illuminating bundle that this light source 10 sends is incident in this colour wheel module 2.
Certainly optical inductor 24 also can directly be arranged on the tablet 27; This tablet 27 can provide installation site and the driving power of this optical inductor 24, and namely this tablet 27 is used for driving this optical inductor 24.Wherein, this tablet 27 and this colour wheel support 20 fix, and be installed on this back side of second 201, namely this tablet 27 and this lid were positioned at second 201 relative both sides of this colour wheel support 20 in 22 minutes, and the installation site of this optical inductor 24 on this tablet 27 is corresponding with this first opening 221 and this second opening 202, so that this optical inductor 24 can be positioned at this first opening 221 or be positioned at the shed space 226 of this lid, thereby be convenient to the assembling of tablet 27 and colour wheel support 20.In addition, in order further to reduce light to the interference of this optical inductor 24, the one side 270 that also this tablet 27 can be arranged this optical inductor is designed to black or dark color, is used for absorbing stray light, reduce the stray light that is transmitted in this colour wheel module 2, improve the reliability of optical sensor 24 detectings.Certainly, also tablet 27 global designs can be become black or dark color.
In addition, in above-described embodiment, this colour wheel support has first surface and second, and this lid and this tablet are installed on second.Certainly, in practical application, this colour wheel support can only have first surface, and this first surface is except supplying to install the runner assembly, also lid can be installed, namely this lid can be directly installed on the first surface, and tablet then can be directly fixed on this lid, so can have the convenient effect of making this colour wheel support.
In addition, can be further with reference to shown in Figure 3, this colour wheel module 2 also further comprises colour wheel protective cover 28, in order to cover this colour wheel 23 and this lid 22, prevents that stray light and dust from entering in this colour wheel module, has influence on the sensitivity of optical sensor.In addition, the connector 11 of this light source assembly 1 also comprises the fourth face 112 that is connected with the 3rd 110 edge, and this fourth face 112 and the corresponding setting in the edge of this colour wheel are used for covering this colour wheel, prevent that stray light and dust from entering in this colour wheel module.
In sum, in the colour wheel module 2, this colour wheel support 20, this runner assembly 21, this colour wheel 23 arrange along the normal direction N1 of colour wheel 23, this runner assembly 21 between this colour wheel support 20 and this colour wheel 23, the compactedness that implementation structure is arranged.And runner assembly 21, lid 22 and this optical sensor 24 arrange along first direction N2, and this runner assembly 21 of this lid semi-surrounding, and wherein the normal direction N1 of this first direction N2 and this colour wheel 23 is perpendicular.So, can mask a part of stray light by this runner assembly of lid 22 semi-surroundings and this optical sensor of shield, simultaneously, blacking on the one side blacking of the installed surface of the absorbed stray light that arranges on this lid 22, tablet installation optical inductor and the colour wheel support, all possess the absorption stray light, reduce disturbance light is to the interference of optical sensor, thereby further improved sensitivity and the reliability of optical sensor, improve the reliability of whole projecting apparatus, guaranteed its performance.Further, because this lid is designed to the semi-surrounding runner assembly, is convenient to this runner assembly and in the opening of this lid, is installed into the shed space, be beneficial to assembling, simultaneously simple in structure, be convenient to make.
The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, the change of doing 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 (10)
1. a colour wheel module is characterized in that, comprise,
The colour wheel support has first surface;
Colour wheel;
Runner assembly, be fixedly connected to drive this colour wheel rotation with this colour wheel, and this runner assembly has first surface, second surface and sidewall, this first surface is assembled mutually with this colour wheel, the first surface of this second surface and this colour wheel support matches, and this sidewall is between this first surface and this second surface;
Positioning index is arranged on the sidewall of this runner assembly;
Lid fixes with this colour wheel support, has the installed surface that absorbs stray light, and this installed surface has the first opening, and this this runner assembly of lid semi-surrounding;
Optical inductor is oppositely arranged with the first opening of this lid, is used for the position of this positioning index of detecting to obtain the position of this colour wheel;
Wherein, this colour wheel support, this runner assembly, this colour wheel are along the normal direction setting of this colour wheel, and this runner assembly is between this colour wheel support and this colour wheel; This runner assembly, this lid and this optical sensor be along the first direction setting, and this lid and this optical sensor are arranged at the homonymy of this runner assembly; The normal direction of this first direction and this colour wheel is perpendicular.
2. colour wheel module as claimed in claim 1, it is characterized in that, this colour wheel support also has and perpendicular second of this first surface, this second is used for setting firmly this lid, and this second face is provided with the second opening, this second opening is corresponding with this first opening and this optical inductor, and the edge of this second opening is provided with light-absorbing coating; This lid is positioned at the zone that this first surface and this second face surround.
3. colour wheel module as claimed in claim 2, it is characterized in that, also comprise tablet, this tablet and this lid lay respectively at the both sides of this colour wheel support, this tablet be used for to drive this optical inductor, and this tablet one side that this optical inductor is set is black or dark or this tablet integral body is black or dark color.
4. colour wheel module as claimed in claim 1 is characterized in that, this installed surface is curved; And this lid forms the shed space, and the part of this runner assembly is positioned at this shed space.
5. colour wheel module as claimed in claim 1, it is characterized in that: this lid integral body is black or dark color, is used for absorbing stray light.
6. colour wheel module as claimed in claim 5, it is characterized in that: this lid is made by plastic cement, and because of the black raw material that adds in its plastic material so that its appearance is black, perhaps make its appearance be black because the surface is provided with black coating.
7. colour wheel module as claimed in claim 1 is characterized in that: further comprise the colour wheel protective cover, this lid and this colour wheel are positioned at the shed space that this colour wheel protective cover forms.
8. a projecting apparatus comprises such as each described colour wheel module of claim 1 to 7, it is characterized in that, also comprise,
Light source assembly comprises light source and connector, and this light source is in order to send an illuminating bundle, and this connector is provided with the 3rd, and the 3rd face is provided with the 3rd opening, uses for this illuminating bundle and passes through;
Light valve is disposed on the light path of this illuminating bundle, in order to this illuminating bundle is converted to an image strip;
Projection lens is disposed on the light path of this image strip, in order to project this image strip.
9. projecting apparatus as claimed in claim 8 is characterized in that, this illuminating bundle is by forming an incident beam behind this colour wheel, and this incident beam and this optical sensor are positioned at the different both sides of this runner assembly.
10. projecting apparatus as claimed in claim 8 is characterized in that: this connector also comprises the fourth face that is connected with the 3rd edge, and this fourth face and the corresponding setting in the edge of this colour wheel are used for covering this colour wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311445.7A CN103375774B (en) | 2013-07-23 | 2013-07-23 | Color wheel module and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311445.7A CN103375774B (en) | 2013-07-23 | 2013-07-23 | Color wheel module and projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103375774A true CN103375774A (en) | 2013-10-30 |
| CN103375774B CN103375774B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310311445.7A Active CN103375774B (en) | 2013-07-23 | 2013-07-23 | Color wheel module and projector |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597783A (en) * | 2016-12-30 | 2017-04-26 | 苏州佳世达光电有限公司 | Projector |
| US11300864B2 (en) * | 2019-10-16 | 2022-04-12 | Coretronic Corporation | Projector and wheel-type optical assembly |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003704A1 (en) * | 2000-05-25 | 2002-01-10 | Hideki Ohmae | Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device |
| CN101424865A (en) * | 2007-10-30 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| CN102478750A (en) * | 2010-11-19 | 2012-05-30 | 中强光电股份有限公司 | Color wheel module and projector with same |
-
2013
- 2013-07-23 CN CN201310311445.7A patent/CN103375774B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003704A1 (en) * | 2000-05-25 | 2002-01-10 | Hideki Ohmae | Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device |
| CN101424865A (en) * | 2007-10-30 | 2009-05-06 | 鸿富锦精密工业（深圳）有限公司 | Projector |
| CN102478750A (en) * | 2010-11-19 | 2012-05-30 | 中强光电股份有限公司 | Color wheel module and projector with same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597783A (en) * | 2016-12-30 | 2017-04-26 | 苏州佳世达光电有限公司 | Projector |
| US11300864B2 (en) * | 2019-10-16 | 2022-04-12 | Coretronic Corporation | Projector and wheel-type optical assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103375774B (en) | 2015-04-29 |
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