CN101943848A - Single-projection wide-screen projection device - Google Patents
Single-projection wide-screen projection device Download PDFInfo
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- CN101943848A CN101943848A CN 201010268767 CN201010268767A CN101943848A CN 101943848 A CN101943848 A CN 101943848A CN 201010268767 CN201010268767 CN 201010268767 CN 201010268767 A CN201010268767 A CN 201010268767A CN 101943848 A CN101943848 A CN 101943848A
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Abstract
The invention provides a single-projection wide-screen projection device. The device comprises an image processing system, and an optical non-imaging system, an optical imaging system, an optical path switching system and a projection lens which are arranged in the optical direction in turn, wherein the optical non-imaging system provides a light source; the projection lens magnifies an image and projects the image on a screen; the image processing system is connected with the optical imaging system and the optical path switching system respectively and is used to cutting the image to N-numbered frames of small images and output optical switch signals, N is a natural number which is more than one; the optical imaging system is used to receive the N frames of small images and light rays; the optical path switching system contains N-numbered reflectors and N-numbered or (N-1)-numbered optical switches; and the optical switches are used to receive the optical switch signals to control the working condition of the corresponding reflectors of which angles to the optical axis are set. The invention uses the single projection technology and the display scale of the image exceeds the current level, thus truly realizing the large-screen and wide-field projection.
Description
[technical field]
The present invention relates to a kind of widescreen shadow casting technique, especially relate to a kind of single-throw shadow widescreen shadow casting technique.
[background technology]
In recent years, each field every profession and trade is all paid much attention to informatization, and the visual demand of information is also sharply enlarged, and the demand of maximization, high-definition, high-resolution seamless anastomosing and splicing display system is grown with each passing day.Existing widescreen shadow casting technique has two kinds, the projection of the many throwings of a kind of employing widescreen, and a kind of is the projection of single-throw widescreen.The projection of many throwing widescreens generally is made of a plurality of projecting cells, and each projecting cell all comprises lamp optical system, video display board and projection optics system.Behind the image mosaic that each projecting cell projects, tangible seam situation is arranged between each screen, although technology has made seam do smallerly at present, but still spliced whole picture effect there is certain influence, its image of existing single-throw shadow widescreen projection shows the screen aspect ratio that sticks to 4: 3 or 16: 9 or 16: 10, the image displaying ratio is less, can not satisfy the demand of modern to giant-screen, the wide visual field.All there is the cost height in two types widescreen projector, and volume is big, weak point such as is not easy to carry.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of single-throw shadow widescreen projection arrangement, and it can realize giant-screen truly, the projection in the wide visual field.
The present invention is achieved in that
A kind of single-throw shadow of the present invention widescreen projection arrangement, it comprises an image processing system and project projecting lens on the screen after a non-imaging system of optics that light source is provided that sets gradually on the optical direction, an optical imaging system, a light path switched system, amplifies image;
Described image processing system is connected with the light path switched system with optical imaging system respectively, be responsible for segmenting the image into the little image of N frame and pass to optical imaging system, N is the natural number greater than 1, and the photoswitch signal of the little image of corresponding described each frame of output is given the light path switched system simultaneously;
Described optical imaging system is used to receive the light of little image of N frame and the non-imaging system of optics, and after the light of the non-imaging system of optics modulated, shows the little image of N frame;
Described light path switched system comprises at least two reflective mirrors, and the photoswitch signal that the corresponding photoswitch of each sheet reflective mirror, described photoswitch are used to receive described image processing system is to control the corresponding duty that configures with the reflective mirror of optical axis included angle.
Further, the non-imaging system of described optics comprises light source, the reshaper that sets gradually, collimating apparatus.
Further, described optical imaging system is included in the polarizer that sets gradually on the optical direction, prism, image display device and analyzer.
Further, also be provided with lineal surely system between described optical imaging system and the light path switched system, described colimated light system is made up of at least one collimation lens.
Further, described image processing system further comprises successively and to connect: a conversion IC, be responsible for the picture signal of distinct interface is converted to rgb pixel digital signal, synchronizing signal and control signal; One control IC is responsible for the rgb pixel digital signal of conversion IC output is divided into the little image of N frame, N be one greater than 1 natural number, and to the little image scanning of each frame, be transported to the image display device of described optical imaging system then, in the time of scanning, output N road photoswitch signal.
Further, when described photoswitch is the N road, the photoswitch on described photoswitch signal controlling N road, the photoswitch signal of the little image of corresponding first frame makes first reflective mirror in running order, promptly is on the light path of little image projection; First reflective mirror of photoswitch signal at stop of the little image of corresponding second frame promptly departs from the light path of little image projection, makes second reflective mirror in running order, promptly is on the light path of little image projection, by that analogy; The photoswitch signal of the little image of corresponding m frame is closed the m-1 sheet reflective mirror of its front, and m sheet reflective mirror is in running order, m be one smaller or equal to the N natural number, described m sheet reflective mirror should reflect by little image fully.
Further, when described photoswitch is the N-1 road, the photoswitch on described photoswitch signal controlling N-1 road, the photoswitch signal of the little image of corresponding first frame makes first reflective mirror in running order, promptly is on the light path of little image projection; First reflective mirror of photoswitch signal at stop of the little image of corresponding second frame promptly departs from the light path of little image projection, makes second reflective mirror in running order, promptly is on the light path of little image projection, by that analogy; The photoswitch signal of the little image of corresponding m frame is closed the m-1 sheet reflective mirror of its front, and m sheet reflective mirror is in running order, and m is a natural number smaller or equal to N-1, and described m sheet reflective mirror should reflect by little image fully; N sheet reflective mirror remains in duty, promptly is on the light path of little image projection.
Further, described control IC realizes the scanning to the little image of each frame by control RGB, HS (line synchronizing signal), VS (field sync signal), DE (data permission signal), DCLK (data clock frequency).
Further, the reflective mirror quantity of described light path switched system is more than or equal to the quantity of the little image after cutting apart.
Further, described photoswitch moves the mechanical optical switch that changes light path for relying on optical element, or relies on electrooptical effect or magneto-optic effect or acoustooptic effect or thermo-optic effect to change the non-mechanical optical switch that waveguide index changes light path.
The present invention has following advantage:
1. the present invention uses single-throw shadow casting technique, by being image segmentation the little image of N frame, be sent to an image display device then, in conjunction with the photoswitch signal reflective mirror in the light path switching is controlled, the picture displaying ratio surpasses existing level, realize giant-screen truly, the projection in the wide visual field, solved existing widescreen shadow casting technique and had deficiencies such as the less and poor visual effect of image displaying ratio;
2. the present invention reduces cost of products greatly, dwindles small product size, realizes the widescreen projection of minitype projection machine, has solved widescreen projector cost height, volume is big, is unfavorable for the problems such as extensive promotion and application of widescreen projector;
3. the control IC of the present invention's use uses one group of rgb signal transport module, cooperate one group of signal both can realize the widescreen projection, The whole control IC circuit design is simple, control IC type selecting scope is wide, solved existing control IC and comprised many group rgb signal transport modules, control IC complex circuit designs, the control IC of type selecting limitation high-performance high integration, be unfavorable for the reduction of cost of products, and the problems such as popularization of product.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the photoswitch signal schematic representation of Fig. 1 embodiment.
Fig. 3 is the structural representation of another embodiment of the present invention.
[embodiment]
Consult Fig. 1 to Fig. 3, the embodiment of the invention is described in detail.
As Fig. 1, be the structural representation of one embodiment of the invention.The embodiment of the invention comprises: an image processing system 1 and a projecting lens 6 that projects after providing the non-imaging system of the optics of light source 2, an optical imaging system 3, a light path switched system 5, that image is amplified on the screen that is setting gradually on the optical direction; Also be provided with lineal surely system 4 between described optical imaging system 3 and the light path switched system 5.
Described image processing system 1 is connected with light path switched system 5 with optical imaging system 3 respectively, and described image processing system 1 specifically comprises, a conversion IC 11, one control IC12.After picture signal entered, conversion IC 11 was converted to rgb pixel digital signal, synchronizing signal and control signal to the picture signal of distinct interface.Control input according to the user then, control IC12 carries out the branch frame to view data to be handled, and is divided into the little image of N frame, and N is a natural number and greater than 1.Realize the scanning to the little image of each frame by control RGB, HS, VS, DE, DCLK then, in the time of scanning, the photoswitch signal 13 of the little image of respectively corresponding each frame of output is given the light path switched system.After scanning was finished, described control IC12 passed to optical imaging system 3 to the little image of N frame.
The non-imaging system 2 of described optics specifically comprises: a light source 21, and described light source 21 is conventional bulb or led or laser etc.; One reshaper 22 and a collimating apparatus 23, the light that described light source 21 is provided carries out shaping and collimation respectively.
Described optical imaging system 3, be used to receive the light of little image of N frame and the non-imaging system 2 of optics, it specifically comprises, an image display device 31, described image display device 31 are DMD (digital micro-mirror demonstration) plate or LCOS (liquid crystal over silicon) plate or DLP (digit optical processing) plate or LCD etc.; One prism 32; One polarizer 33; One analyzer 34.When the light of the non-imaging system 2 of described optics enters optical imaging system 3, pass through the polarizer 33 successively, obtain polarized light, pass through the reflection of prism 32 then, reflex to image display device 31, after the little image of N frame after the described scanning is transferred to image display device 31, through analyzer 34 outputs.
Described colimated light system 4 is made up of two collimation lenses, is directional light when making the beam projecting that is entered by optical imaging system 3, and energy is concentrated in a predetermined direction, and described light transmission is to light path switched system 5.
Described light path switched system 5 comprises one group of reflective mirror 51, and the quantity of present embodiment reflective mirror 51 is the same with the quantity of little image all to be N, and N is a natural number and greater than 1.A photoswitch 52 is installed on the described reflective mirror 51, described photoswitch 52 moves the mechanical optical switch that changes light path for relying on optical element, or relies on electrooptical effect or magneto-optic effect or acoustooptic effect or thermo-optic effect to change the non-mechanical optical switch that waveguide index changes light path.N sheet reflective mirror is in running order always, promptly is on the light path of little image projection always, does not connect photoswitch.Described photoswitch signal 13 is controlled the duty of reflective mirror 51 by the duty of control photoswitch 52.In conjunction with Fig. 2, suppose that the photoswitch signal is 1, photoswitch is on the light path of little image projection reflective mirror, and the photoswitch signal is 0, and photoswitch makes reflective mirror depart from the light path of little image projection.The photoswitch signal 11 of first frame ... 1 makes first reflective mirror in running order, promptly is on the light path of little image projection, and light is by the p on first reflective mirror projection back arrival screen
1The point; The second frame photoswitch signal 011 ... 1 closes first reflective mirror, make second reflective mirror in running order, even first reflective mirror departs from the light path of little image projection, second reflective mirror is on the light path of little image projection, and light is by the p on second reflective mirror projection back arrival screen
2The point; By that analogy, (1≤m≤N-1) the photoswitch signal of sheet makes the reflective mirror of front m-1 sheet close to m, m sheet reflective mirror is in running order, it is the light path that the reflective mirror of front m-1 sheet departs from little image projection, m sheet reflective mirror is on the light path of little image projection, m is a natural number, and described m sheet reflective mirror should reflect by little image fully, and reflective mirror thereafter no longer influences the projection of this little image.After arriving reflective mirror N, light just projects the p on the screen
nThe point.By setting the angle of each sheet reflective mirror 51 and optical axis, successively with the correspondence position of the little image projection of N frame to the screen.
Described projecting lens 6 is responsible for and will be projected on the screen after the image amplification, and the reflective mirror at optical axis center does not need the multi-disc lens to proofread and correct, coma, astigmatism and distortion.
As shown in Figure 3, be the structural representation of another embodiment of the present invention.The difference of the embodiment of it and above-mentioned Fig. 1 is: in the described light path switched system 5, each sheet reflective mirror 51 is all installed a photoswitch 52, and the photoswitch signal 13 of the little image of corresponding each frame has been controlled the duty of the photoswitch on N road.By setting the angle of each sheet reflective mirror 51 and optical axis, successively with the correspondence position of the little image projection of N frame to the screen.
Based on the embodiment among the present invention, those of ordinary skills are under the prerequisite of not making performing creative labour, and the every other embodiment that is obtained belongs to the scope of protection of the invention.
Claims (10)
1. single-throw shadow widescreen projection arrangement is characterized in that: an image processing system and a projecting lens that projects after providing the non-imaging system of optics, an optical imaging system, a light path switched system, of light source that image is amplified on the screen that is setting gradually on the optical direction are provided for it;
Described image processing system is connected with the light path switched system with optical imaging system respectively, be responsible for segmenting the image into the little image of N frame and pass to optical imaging system, N is the natural number greater than 1, and the photoswitch signal of the little image of corresponding described each frame of output is given the light path switched system simultaneously;
Described optical imaging system is used to receive the light of little image of N frame and the non-imaging system of optics, and after the light of the non-imaging system of optics modulated, shows the little image of N frame;
Described light path switched system comprises N sheet reflective mirror, and N or N-1 photoswitch, arbitrary photoswitch connects a reflective mirror respectively, and the photoswitch signal that described photoswitch is used to receive described image processing system is to control the corresponding duty that configures with the reflective mirror of optical axis included angle.
2. a kind of single-throw shadow widescreen projection arrangement according to claim 1, it is characterized in that: the non-imaging system of described optics comprises light source, the reshaper that sets gradually, collimating apparatus.
3. a kind of single-throw shadow widescreen projection arrangement according to claim 1, it is characterized in that: described optical imaging system is included in the polarizer that sets gradually on the optical direction, prism, image display device and analyzer.
4. a kind of single-throw shadow widescreen projection arrangement according to claim 1 is characterized in that: also be provided with lineal surely system between described optical imaging system and the light path switched system, described colimated light system is made up of at least one collimation lens.
5. a kind of single-throw shadow widescreen projection arrangement according to claim 1 is characterized in that: described image processing system further comprises successively and to connect:
One conversion IC is responsible for the picture signal of distinct interface is converted to rgb pixel digital signal, synchronizing signal and control signal;
One control IC is responsible for the rgb pixel digital signal of conversion IC output is divided into the little image of N frame, N be one greater than 1 natural number, and to the little image scanning of each frame, be transported to the image display device of described optical imaging system then, in the time of scanning, the photoswitch signal that output is corresponding.
6. a kind of according to claim 1 or 5 single-throw shadow widescreen projection arrangement is characterized in that: when described photoswitch is the N road, and the photoswitch on described photoswitch signal controlling N road;
The photoswitch signal of the little image of corresponding first frame makes first reflective mirror in running order, promptly is on the light path of little image projection;
First reflective mirror of photoswitch signal at stop of the little image of corresponding second frame promptly departs from the light path of little image projection, makes second reflective mirror in running order, promptly is on the light path of little image projection, by that analogy;
The photoswitch signal of the little image of corresponding m frame is closed the m-1 sheet reflective mirror of its front, and m sheet reflective mirror is in running order, and m is a natural number smaller or equal to N, and described m sheet reflective mirror should reflect by little image fully.
7. a kind of according to claim 1 or 5 single-throw shadow widescreen projection arrangement is characterized in that: when described photoswitch is the N-1 road, and the photoswitch on described photoswitch signal controlling N-1 road;
The photoswitch signal of the little image of corresponding first frame makes first reflective mirror in running order, promptly is on the light path of little image projection;
First reflective mirror of photoswitch signal at stop of the little image of corresponding second frame promptly departs from the light path of little image projection, makes second reflective mirror in running order, promptly is on the light path of little image projection, by that analogy;
The photoswitch signal of the little image of corresponding m frame is closed the m-1 sheet reflective mirror of its front, and m sheet reflective mirror is in running order, and m is a natural number smaller or equal to N, and described m sheet reflective mirror should reflect by little image fully;
N sheet reflective mirror remains in duty, promptly is on the light path of little image projection.
8. a kind of single-throw shadow widescreen projection arrangement according to claim 5 is characterized in that: described control IC realizes the scanning to the little image of each frame by control RGB, HS, VS, DE, DCLK.
9. a kind of single-throw shadow widescreen projection arrangement according to claim 1, it is characterized in that: the reflective mirror quantity of described light path switched system is more than or equal to the quantity of the little image after cutting apart.
10. a kind of single-throw shadow widescreen projection arrangement according to claim 1, it is characterized in that: described photoswitch moves the mechanical optical switch that changes light path for relying on optical element, or relies on electrooptical effect or magneto-optic effect or acoustooptic effect or thermo-optic effect to change the non-mechanical optical switch that waveguide index changes light path.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010268767 CN101943848A (en) | 2010-08-31 | 2010-08-31 | Single-projection wide-screen projection device |
| US13/255,790 US20130147865A1 (en) | 2010-08-31 | 2011-01-20 | Single-projection widescreen projecting device and single-projection widescreen projecting method |
| PCT/CN2011/070423 WO2012027974A1 (en) | 2010-08-31 | 2011-01-20 | Single projection wide-screen projection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010268767 CN101943848A (en) | 2010-08-31 | 2010-08-31 | Single-projection wide-screen projection device |
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| CN101943848A true CN101943848A (en) | 2011-01-12 |
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| CN 201010268767 Pending CN101943848A (en) | 2010-08-31 | 2010-08-31 | Single-projection wide-screen projection device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943849A (en) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | Single-projection widescreen projector |
| CN102231010A (en) * | 2011-06-15 | 2011-11-02 | 杭州晶景光电有限公司 | Wide area light source shaping system for micro projection optical engine |
| WO2012027974A1 (en) * | 2010-08-31 | 2012-03-08 | 福建网讯科技有限公司 | Single projection wide-screen projection device and method |
| CN103477279A (en) * | 2011-04-14 | 2013-12-25 | 微视公司 | Free form optical redirection apparatus |
| CN105589202A (en) * | 2016-03-18 | 2016-05-18 | 京东方科技集团股份有限公司 | Display device, display method, and display system |
| CN105611262A (en) * | 2011-03-14 | 2016-05-25 | 杜比实验室特许公司 | Display |
| CN105988271A (en) * | 2015-02-13 | 2016-10-05 | 扬明光学股份有限公司 | Projection device |
| WO2020168812A1 (en) * | 2019-02-22 | 2020-08-27 | 深圳光峰科技股份有限公司 | Light source system, light source assembly, display device, and control method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012027974A1 (en) * | 2010-08-31 | 2012-03-08 | 福建网讯科技有限公司 | Single projection wide-screen projection device and method |
| CN101943849A (en) * | 2010-08-31 | 2011-01-12 | 福建网讯科技有限公司 | Single-projection widescreen projector |
| CN105611262B (en) * | 2011-03-14 | 2018-05-15 | 杜比实验室特许公司 | Display |
| US11683473B2 (en) | 2011-03-14 | 2023-06-20 | Dolby Laboratories Licensing Corporation | Laser local dimming for projectors and other lighting devices including cinema, entertainment systems, and displays |
| US11146782B2 (en) | 2011-03-14 | 2021-10-12 | Dolby Laboratories Licensing Corporation | Laser local dimming for projectors and other lighting devices including cinema, entertainment systems, and displays |
| CN105611262A (en) * | 2011-03-14 | 2016-05-25 | 杜比实验室特许公司 | Display |
| US10165260B2 (en) | 2011-03-14 | 2018-12-25 | Dolby Laboratories Licensing Corporation | Laser local dimming for projectors and other lighting devices including cinema, entertainment systems, and displays |
| CN103477279A (en) * | 2011-04-14 | 2013-12-25 | 微视公司 | Free form optical redirection apparatus |
| CN102231010A (en) * | 2011-06-15 | 2011-11-02 | 杭州晶景光电有限公司 | Wide area light source shaping system for micro projection optical engine |
| US9939715B2 (en) | 2015-02-13 | 2018-04-10 | Young Optics Inc. | Projection system, projection device and display rack |
| CN105988271A (en) * | 2015-02-13 | 2016-10-05 | 扬明光学股份有限公司 | Projection device |
| US10302992B2 (en) | 2016-03-18 | 2019-05-28 | Boe Technology Group Co., Ltd. | Display apparatus, display system having the same, and image display method thereof |
| US10782554B2 (en) | 2016-03-18 | 2020-09-22 | Boe Technology Group Co., Ltd. | Display apparatus, display system having the same, and image display method thereof |
| CN105589202A (en) * | 2016-03-18 | 2016-05-18 | 京东方科技集团股份有限公司 | Display device, display method, and display system |
| WO2020168812A1 (en) * | 2019-02-22 | 2020-08-27 | 深圳光峰科技股份有限公司 | Light source system, light source assembly, display device, and control method thereof |
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