CN102411249A - One-piece projector with touch function - Google Patents
One-piece projector with touch function Download PDFInfo
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- CN102411249A CN102411249A CN2010102887609A CN201010288760A CN102411249A CN 102411249 A CN102411249 A CN 102411249A CN 2010102887609 A CN2010102887609 A CN 2010102887609A CN 201010288760 A CN201010288760 A CN 201010288760A CN 102411249 A CN102411249 A CN 102411249A
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- projector
- photomodulator
- imageing sensor
- optical lens
- touch function
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Abstract
A one-piece projector with a touch function relates to a projector. The one-piece projector comprises a projector main body. The projector main body comprises: a light modulator, an optical lens and an image pickup system. The image pickup system comprises an image sensor. A beam splitting element is arranged between the light modulator and the optical lens. The beam splitting element forms a transmission relation with the light in a direction of from the light modulator to the optical lens. The beam splitting element forms a reflective relation with the light in the direction of from the light modulator to the optical lens. The image sensor is arranged at the reflective direction. The optical system in the invention possesses functions of projecting the image modulated by the light modulator and sending a touch optical signal returned by a projection screen to the image sensor. The projection and the imaging system share one optical lens so that a volume is small. A structure is simple and costs are low. The projector has many other advantages.
Description
Technical field
The present invention relates to a kind of electronic applications, relate in particular to a kind of projector.
Background technology
Along with development of science and technology, projector's being used just more and more widely by people.Projector is widely used in places such as exhibition, classroom, meeting-place, movie theatre.
People often have the needs that carry out touch operation to display frame in addition.The touching technique that now combines with projector mostly is to place a video camera in display frame the place ahead, through the interactive information of video camera picked-up object and display frame.Video camera sends the picture that is absorbed to computing machine, and computing machine is accomplished touch operation control through analyzing picture and then drawing touch action information.
This structure needs projector and video camera two complete equipments, has that cost is high, big, shortcoming such as the complicated debugging of needs, touch action seizure out of true when installing takes up room.
Summary of the invention
The object of the present invention is to provide a kind of integral type projector, to solve the problems of the technologies described above with touch function.
The technical matters that the present invention solved can adopt following technical scheme to realize:
The integral type projector of band touch function comprises projector's main body, and said projector main body comprises a photomodulator, an optical lens, it is characterized in that, also comprises a camera system, and said camera system comprises an imageing sensor;
Be provided with a beam splitter between said photomodulator and the said optical lens;
Said beam splitter is for being the transmission relation from said photomodulator to the light of said optical lens direction;
Said beam splitter is provided with said imageing sensor for being reflective relation from said optical lens direction to the light of said photomodulator direction on its reflection direction.
In the technique scheme, camera system is used the said optical lens in projector's main body simultaneously, like this with respect to existing employing projector for system that video camera separates, can save the higher said optical lens of a cover cost.
Said projector main body comprises a projector shell, and said camera system is arranged in the said projector shell.Can make the total system designs simplification like this, needn't specially reserve the position for laying of video camera again, also needn't too much debug video camera.And then can in the installation of total system and debugging, save a large amount of man power and materials.
Is exiting surface with said beam splitter near the one side of said optical lens, and the angle between said exiting surface and said photomodulator is 45 degree, and the angle between said exiting surface and the said imageing sensor is 45 to spend.
According to the light path principle of reversibility, the light that is penetrated by said exiting surface forms images in the external world through the light that said optical lens penetrates, and (part) light of the position of its imaging can reversely return, and forms images at said photomodulator place.In the above-mentioned design, the light of optical lens the place ahead being penetrated back through beam splitter reflects, and reflexes to said imageing sensor, in said imageing sensor imaging.
According to the light path principle of reversibility, on said imageing sensor received picture pairing outside boundary region, be similar to the outer boundary region at the picture place that projector's main body projects.That is to say; Under with the imaging scope of projector's main body situation as the touch area that allows to carry out touch operation; The picture that is appeared on the said imageing sensor just in time (or approximate) is the picture of whole touch area, helps reducing image in the extraneous non-touch area to the influence of touch operation.
Said imageing sensor and said photomodulator are through said exiting surface symmetry arrangement.Like this in projector's main body under the situation that presents picture rich in detail on the projection screen, according to the light path principle of reversibility, near the picture the projection screen also can present distinct image on said imageing sensor.Therefore after the drop shadow effect that adjusts projector's main body, camera system obtains distinct image naturally, needn't extra adjustment camera system.
Said beam splitter can adopt light splitting piece, also can adopt optical prism, like right-angle prism, can also adopt other optical elements to be achieved.
Said imageing sensor can adopt ccd image sensor or COMS imageing sensor.Ccd image sensor has the characteristics clearly that form images.The COMS imageing sensor has lower-cost characteristics.
Said photomodulator can adopt LCOS photomodulator or DLP photomodulator.The LCOS photomodulator has the characteristics clearly that form images.The DLP photomodulator maturation that possesses skills, present stage lower-cost characteristics.
Beneficial effect: the optical system among the present invention; Possess simultaneously photomodulator is transferred the image point out to carry out projection and the touch optical signalling that projection screen returns is sent to the dual-use function of imageing sensor; Because projection and the shared camera lens of imaging system; It is little, simple in structure that system has a volume, low cost and other advantages.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, further set forth the present invention below in conjunction with concrete diagram.
With reference to Fig. 1, the integral type projector of band touch function comprises projector's main body, and projector's main body comprises a photomodulator 1, an optical lens 4, also comprises a camera system, and camera system comprises an imageing sensor 5.In the technique scheme, camera system is used the optical lens 4 in projector's main body simultaneously, like this with respect to existing employing projector for system that video camera separates, can save the higher optical lens 4 of a cover cost.
Be provided with a beam splitter 2 between photomodulator 1 and the optical lens 4.Beam splitter 2 can adopt light splitting piece, also can adopt optical prism, like right-angle prism, can also adopt other optical elements to be achieved.Photomodulator 1 can adopt LCOS photomodulator or DLP photomodulator.The LCOS photomodulator has the characteristics clearly that form images.The DLP photomodulator maturation that possesses skills, present stage lower-cost characteristics.Beam splitter 2 is for being the transmission relation from photomodulator 1 to the light of optical lens 4 directions.Beam splitter 2 is provided with imageing sensor 5 for being reflective relation from optical lens 4 directions to the light of photomodulator 1 direction on its reflection direction.Imageing sensor 5 can adopt ccd image sensor or COMS imageing sensor.Ccd image sensor has the characteristics clearly that form images.The COMS imageing sensor has lower-cost characteristics.
Projector's main body comprises a projector shell, and camera system is arranged in the projector shell.Can make the total system designs simplification like this, needn't specially reserve the position for laying of video camera again, also needn't too much debug video camera.And then can in the installation of total system and debugging, save a large amount of man power and materials.Is exiting surface with beam splitter 2 near the one side of optical lens 4, and the angle that exiting surface and photomodulator are 1 is 45 degree, and the angle between exiting surface and the imageing sensor 5 is 45 to spend.
According to the light path principle of reversibility, the light that is penetrated by exiting surface is penetrated 4 light that go out through optical lens and is formed images in the external world, and (part) light of the position of its imaging can reversely return, and forms images at photomodulator 1 place.In the above-mentioned design, the light of penetrating back through 2 pairs of optical lens 4 the place aheads of beam splitter reflects, and reflexes to imageing sensor 5, in imageing sensor 5 imagings.According to the light path principle of reversibility, on imageing sensor 5 received picture pairing outside boundary region, be similar to the outer boundary region at the picture place that projector's main body projects.That is to say; Under with the imaging scope of projector's main body situation as the touch area that allows to carry out touch operation; The picture that is appeared on the imageing sensor 5 just in time (or approximate) is the picture of whole touch area, helps reducing image in the extraneous non-touch area to the influence of touch operation.The touch point of carrying out touch operation can be the visible image that appears with various forms, perhaps infrared image.If emphasis receives infrared image, then imageing sensor 5 should adopt the imageing sensor 5 with infrared image receiving ability.
Imageing sensor 5 passes through the exiting surface symmetry arrangement with photomodulator 1.Like this in projector's main body under the situation that presents picture rich in detail on the projection screen, according to the light path principle of reversibility, near the picture the projection screen also can present distinct image on imageing sensor 5.Therefore after the drop shadow effect that adjusts projector's main body, camera system obtains distinct image naturally, needn't extra adjustment camera system.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (10)
1. the integral type projector of band touch function comprises projector's main body, and said projector main body comprises a photomodulator, an optical lens, it is characterized in that, also comprises a camera system, and said camera system comprises an imageing sensor;
Be provided with a beam splitter between said photomodulator and the said optical lens;
Said beam splitter is for being the transmission relation from said photomodulator to the light of said optical lens direction;
Said beam splitter is provided with said imageing sensor for being reflective relation from said optical lens direction to the light of said photomodulator direction on its reflection direction.
2. the integral type projector of band touch function according to claim 1 is characterized in that, said projector main body comprises a projector shell, and said camera system is arranged in the said projector shell.
3. the integral type projector of band touch function according to claim 2; It is characterized in that; Is exiting surface with said beam splitter near the one side of said optical lens; Angle between said exiting surface and said photomodulator is 45 degree, and the angle between said exiting surface and the said imageing sensor is 45 degree.
4. the integral type projector of band touch function according to claim 3 is characterized in that, said imageing sensor and said photomodulator are through said exiting surface symmetry arrangement.
5. the integral type projector of band touch function according to claim 1 is characterized in that, said beam splitter adopts light splitting piece.
6. the integral type projector of band touch function according to claim 4 is characterized in that, said imageing sensor adopts ccd image sensor.
7. the integral type projector of band touch function according to claim 4 is characterized in that, said imageing sensor adopts the COMS imageing sensor.
8. the integral type projector of band touch function according to claim 1 is characterized in that, said photomodulator adopts the LCOS photomodulator.
9. the integral type projector of band touch function according to claim 1 is characterized in that, said photomodulator adopts the DLP photomodulator.
10. the integral type projector of band touch function according to claim 1 is characterized in that, said imageing sensor adopts the imageing sensor with infrared image receiving ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102887609A CN102411249A (en) | 2010-09-21 | 2010-09-21 | One-piece projector with touch function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102887609A CN102411249A (en) | 2010-09-21 | 2010-09-21 | One-piece projector with touch function |
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| Publication Number | Publication Date |
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| CN102411249A true CN102411249A (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102887609A Pending CN102411249A (en) | 2010-09-21 | 2010-09-21 | One-piece projector with touch function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188109A1 (en) * | 2015-05-25 | 2016-12-01 | 中兴通讯股份有限公司 | Optical processing device and terminal |
| CN107395933A (en) * | 2017-08-18 | 2017-11-24 | 南京理工大学 | A kind of programmable aperture imaging system and ultra-resolution method based on LCOS spatial light modulators |
| CN110086976A (en) * | 2019-05-30 | 2019-08-02 | 维沃移动通信（杭州）有限公司 | A kind of terminal device |
| CN115996283A (en) * | 2023-03-23 | 2023-04-21 | 北京深光科技有限公司 | Touch interaction projection optical machine without external laser and camera module |
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| US20060097991A1 (en) * | 2004-05-06 | 2006-05-11 | Apple Computer, Inc. | Multipoint touchscreen |
| CN101231450A (en) * | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| US20090289177A1 (en) * | 2008-05-21 | 2009-11-26 | Kye Systems Corp. | Optical trace detecting module |
| CN101644976A (en) * | 2009-08-27 | 2010-02-10 | 广东威创视讯科技股份有限公司 | Surface multipoint touching device and positioning method thereof |
| CN201489503U (en) * | 2009-08-27 | 2010-05-26 | 广东威创视讯科技股份有限公司 | Surface multipoint touch device |
| CN101762956A (en) * | 2009-12-28 | 2010-06-30 | 武汉全真光电科技有限公司 | LCOS projection display system |
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2010
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060097991A1 (en) * | 2004-05-06 | 2006-05-11 | Apple Computer, Inc. | Multipoint touchscreen |
| CN101231450A (en) * | 2008-02-25 | 2008-07-30 | 陈伟山 | Multipoint and object touch panel arrangement as well as multipoint touch orientation method |
| US20090289177A1 (en) * | 2008-05-21 | 2009-11-26 | Kye Systems Corp. | Optical trace detecting module |
| CN101644976A (en) * | 2009-08-27 | 2010-02-10 | 广东威创视讯科技股份有限公司 | Surface multipoint touching device and positioning method thereof |
| CN201489503U (en) * | 2009-08-27 | 2010-05-26 | 广东威创视讯科技股份有限公司 | Surface multipoint touch device |
| CN101762956A (en) * | 2009-12-28 | 2010-06-30 | 武汉全真光电科技有限公司 | LCOS projection display system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188109A1 (en) * | 2015-05-25 | 2016-12-01 | 中兴通讯股份有限公司 | Optical processing device and terminal |
| CN107395933A (en) * | 2017-08-18 | 2017-11-24 | 南京理工大学 | A kind of programmable aperture imaging system and ultra-resolution method based on LCOS spatial light modulators |
| CN107395933B (en) * | 2017-08-18 | 2020-04-10 | 南京理工大学 | Programmable aperture imaging system based on LCOS spatial light modulator and super-resolution method |
| CN110086976A (en) * | 2019-05-30 | 2019-08-02 | 维沃移动通信（杭州）有限公司 | A kind of terminal device |
| CN110086976B (en) * | 2019-05-30 | 2021-11-09 | 维沃移动通信（杭州）有限公司 | Terminal equipment |
| CN115996283A (en) * | 2023-03-23 | 2023-04-21 | 北京深光科技有限公司 | Touch interaction projection optical machine without external laser and camera module |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120411 Assignee: Shanghai Uiworks Electronic Tech. Co., Ltd. Assignor: Cheng Shuyi Contract record no.: 2011310000010 Denomination of invention: One-piece projector with touch function License type: Exclusive License Record date: 20110221 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| 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 |
Application publication date: 20120411 |