CN103760741B - Touch control projection system - Google Patents
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- CN103760741B CN103760741B CN201410008379.0A CN201410008379A CN103760741B CN 103760741 B CN103760741 B CN 103760741B CN 201410008379 A CN201410008379 A CN 201410008379A CN 103760741 B CN103760741 B CN 103760741B
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Abstract
The present invention discloses a kind of touch control projection system, comprises screen, light supply apparatus, image capture unit, micro-mirror device and is arranged at the total internal reflection prism in this micro-mirror device front.This total internal reflection prism has optical path compensation structure or hollow out passage, make from this screen image light in through this total internal reflection prism with after the reflection of this micro-mirror device, can through this optical path compensation structure or hollow out passage to avoid the optical path difference of this image light because causing through this total internal reflection prism.By this, the present invention can solve this image capture unit receive the image light that reflected by this micro-mirror device may the problem of distortion with the touch-control image formed.
Description
Technical field
The present invention about a kind of optical projection system, espespecially a kind of touch control projection system.
Background technology
Fast, also there is corresponding touch technology in projector in touch-control application development recently.Touch technology common at present forms infrared ray curtain before screen, separately install reception module additional in projector, to receive the image light formed by this infrared ray curtain, and then analysis user interdicts the image of this infrared ray curtain to judge the touch control operation of user.In practical application, this reception module can integrate projection lens design.After image light enters projector via projection lens, reflex to image capture unit via DMD Digital Micromirror Device (digital micromirror device, DMD).In some optical projection system, this DMD Digital Micromirror Device front is still provided with total internal reflection (total internal reflection, TIR) prism, the projection ray that light supply apparatus produces is projected in external screen through the reflection of this DMD Digital Micromirror Device through this TIR prismatic reflection again, forms projection image.In this configuration, the image light from screen will first pass this TIR prism, through the reflection of this DMD Digital Micromirror Device, pass this TIR prism again, just by this image capture unit is received.Due to after the reflection of this DMD Digital Micromirror Device, the path of image light in TIR prism is different with different travel angle, this touch-control image possibility distortion that will this image capture unit reception image light is formed, causes misjudgment or the inefficacy of touch control operation.
Summary of the invention
The object of the present invention is to provide a kind of touch control projection system, the touch-control image that the image light that image capture unit is received is formed is undistorted, and then makes touch control projection system correctly can judge the touch control operation of user on screen.
In order to achieve the above object, the invention provides a kind of touch control projection system, comprise:
Screen;
Light supply apparatus, for launching projection ray;
Image capture unit, in order to receive the image light from this screen;
Micro-mirror device, in order to reflect this projection ray and this image light; And
Total internal reflection prism, comprises:
Body, there is the first side surface, the second side surface relative to this first side surface and the 3rd side surface adjacent to this second side surface and the 4th side surface, this second side surface is just to this micro-mirror device, enter this body from this projection ray of this light supply apparatus from the 3rd side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body to be projected on this screen from this first side surface; And
Optical path compensation structure, be fixedly installed on the 4th side surface, enter this body from this image light of this screen from this first side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body through this optical path compensation structure, to be received by this image capture unit, wherein this image light to enter from this second side surface with diverse location and penetrate the light path that this body passes through through this optical path compensation structure identical.
Preferably, this optical path compensation structure is outstanding structure, and this optical path compensation structure protrudes from this body and is formed at the 4th side surface.
Preferably, this optical path compensation structure is cylindrical-shaped structure or cone-shaped structure, and the bottom surface of the end face of this cylindrical-shaped structure or this cone-shaped structure is towards this image capture unit, and this image light penetrates this optical path compensation structure from this end face or this bottom surface.
Preferably, this optical path compensation structure is recessed structure, and this optical path compensation structure is recessed into this body and is formed at the 4th side surface, has inner surface inside this recessed structure, this inner surface is towards this image capture unit, and this image light penetrates this optical path compensation structure from this inner surface.
Preferably, the 3rd side surface is adjacent to the 4th side surface.
The present invention also provides a kind of touch control projection system, comprises:
Screen;
Light supply apparatus, for launching projection ray;
Image capture unit, in order to receive the image light from this screen;
Micro-mirror device, in order to reflect this projection ray and this image light; And
Total internal reflection prism, comprises:
Body, there is the first side surface, the second side surface relative to this first side surface and the 3rd side surface adjacent to this second side surface and the 4th side surface, this second side surface is just to this micro-mirror device, and this body comprises hollow out passage, runs through this second side surface and the 4th side surface;
Wherein, enter this body from this projection ray of this light supply apparatus from the 3rd side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body to be projected on this screen from this first side surface; And
Enter this body from this image light of this screen from this first side surface and penetrate this body, then being reflected by this micro-mirror device, via this hollow out passage from this second side surface to the 4th side surface through this body, to be received by this image capture unit.
Preferably, this hollow out passage is recessed structure, is positioned at this second side surface and the 4th side surface adjoiner and is recessed into this body from this second side surface and the 4th side surface to be formed.
Preferably, this recessed structure has inner surface, this inner surface is relative to this first side surface and towards this image capture unit, this is made to enter this body from this image light of this screen from this first side surface and penetrate this body from this inner surface, enter this recessed structure, reflected by this micro-mirror device again, then pass this body, by this image capture unit to be received from this second side surface to the 4th side surface via this recessed structure.
Preferably, enter this body from this image light of this screen from this first side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, pass this body, by this image capture unit to be received from this second side surface to the 4th side surface via this hollow out passage.
Preferably, the 3rd side surface is adjacent to the 4th side surface.
Compared to prior art, the total internal reflection prism of touch control projection system of the present invention has optical path compensation structure or hollow out passage, the optical path difference that may cause when significantly being improved by this optical path compensation structure or hollow out passage or avoid image light to pass this total internal reflection prism, the touch-control image that the image light that this image capture unit is received is formed is undistorted in fact, therefore correctly can judge the touch control operation of user on screen.
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Accompanying drawing explanation
The schematic diagram of a kind of touch control projection system that Fig. 1 provides for first embodiment of the invention;
The schematic diagram of a kind of TIR prism that Fig. 2 is the touch control projection system described in Fig. 1;
Fig. 3 is the schematic diagram of the another kind of TIR prism in Fig. 1 in touch control projection system;
The schematic diagram of a kind of touch control projection system that Fig. 4 provides for second embodiment of the invention;
The schematic diagram of a kind of TIR prism that Fig. 5 is the touch control projection system described in Fig. 4;
The schematic diagram of the another kind of TIR prism that Fig. 6 is the touch control projection system described in Fig. 4;
The schematic diagram of another TIR prism that Fig. 7 is the touch control projection system described in Fig. 4.
Embodiment
Refer to Fig. 1, its schematic diagram of a kind of touch control projection system 1 for providing according to the first embodiment of the present invention.Touch control projection system 1 comprises screen 12, light supply apparatus 14, image capture unit 16, micro-mirror device 18, total internal reflection prism 20 and light curtain generation device 22.Light supply apparatus 14 is for launching projection ray PL.Image capture unit 16 is in order to receive the image light IL from screen 12.Micro-mirror device 18 forms projection image in order to reflective projection light PL to be projected to screen 12, and in order to reflected image light IL to be received by image capture unit 16.Such as, micro-mirror device 18 can be DMD, but not as limit.TIR prism 20 is arranged at micro-mirror device 18 front, and the projection ray PL that light supply apparatus 14 can be produced reflexes to micro-mirror device 18, and allows that the projection ray PL that micro-mirror device 18 reflects passes.Light curtain generation device 22 produces light curtain 222 in screen 12 front, and image light IL is produced by light curtain 222.In practical application, although the actual light curtain 222 from screen 12 front of image light IL, with regard to the yardstick that whole touch control projection system 1 is installed, light curtain 222 is quite close to screen 12, this image light IL is considered as from screen 12, with simplified illustration by this instructions in logic.
Further, Fig. 2 is referred to.Fig. 2 is the schematic diagram of TIR prism 20.TIR prism 20 comprises body 202 and optical path compensation structure 204 (its setting is shown in Figure 1 with dotted line frame table).Body 202 has the first side surface 202a, the second side surface 202b relative to the first side surface 202a and the 3rd side surface 202c adjacent to the second side surface 202b and the 4th side surface 202d, first side surface 202a is parallel with the second side surface 202b, and the second side surface 202b is just to micro-mirror device 18.Supplementary notes, in Fig. 1, the travel path of TIR prism 20 and projection ray PL and image light IL is only conceptive to be illustrated.In the present embodiment, the structure about TIR prism 20 illustrates, take that shown in Figure 2 as Main Basis; Wherein in Fig. 2, micro-mirror device 18 illustrates with dotted outline, so that understand being oppositely arranged of TIR prism 20 and micro-mirror device 18.From light supply apparatus 14 projection ray PL from the 3rd side surface 202c enter body 202 and from second side surface 202b penetrate body 202, reflected by micro-mirror device 18 again, to enter body 202 again through the second side surface 202b and to penetrate body 202 to be projected on screen 12 from the first side surface 202a.Optical path compensation structure 204 is fixedly installed on the 4th side surface 202d, from screen 12 image light IL from the first side surface 202a enter body 202 and from second side surface 202b penetrate body 202, reflected by micro-mirror device 18 again, to enter body 202 again through the second side surface 202b and to penetrate body 202 through optical path compensation structure 204, to be received by image capture unit 16; Wherein image light IL is shown in Fig. 2 to be with arrow solid line, is represented by dotted lines by the part that body 202 covers.Image light IL to enter from the second side surface 202b with diverse location and penetrate the light path essence that body 202 passes through through optical path compensation structure 204 identical.Wherein, aforementioned essence is identical is not necessary with identical, only need the optical path difference of image light IL after optical path compensation structure 204 can control in certain limit in principle, the unlikely impact of distortion level of the touch-control image that image light IL is formed judges the correctness of touch control operation, therefore aforementioned optical path difference is reduced to certain limit, can be prior art person based on product specification (such as touch-control sensing precision, sensing frequency etc.) draws via simple experiment, does not separately repeat.In the present embodiment, optical path compensation structure 204 is outstanding structures, protrudes from body 202 and is formed at the 4th side surface 202d of body 202.And optical path compensation structure 204 is roughly in cylindrical-shaped structure or cone-shaped structure, and the bottom surface 204a of the end face of this cylindrical-shaped structure or this cone-shaped structure is towards image capture unit 16.Wherein, this end face or bottom surface 204a and this second side surface 202b are non-parallel face, but the present invention is not as limit.Image light IL is from this end face or bottom surface 204a exit optical path collocation structure 204.By this, the touch-control image that the image light that image capture unit 16 receives is formed is undistorted in fact, therefore can correctly judge that user is implemented on the touch control operation on screen 12 based on this touch-control image.
In previous embodiment, optical path compensation structure 204 is for outstanding structure, but the present invention is not as limit.Referring to Fig. 1 and Fig. 3.The schematic diagram of another TIR prism 21 that Fig. 3 provides for the embodiment of the present invention.TIR prism 21 is identical with the setting position of TIR prism 20 in touch control projection system 1, therefore about the configuration relation of TIR prism 21 with other components, directly can consult the configuration of TIR prism 20 in Fig. 1, separately not repeat.In the present embodiment, TIR prism 21 is also roughly the same with TIR prism 20 structure, therefore the component symbol of TIR prism 20 still continued to use by TIR prism 21.TIR prism 21 and TIR prism 20 main difference part are that the optical path compensation structure 214 of TIR prism 21 is recessed structures, and recessed body 202 is also formed at the 4th side surface 202d of body.Inside this recessed structure, there is inner surface 214a, but the present invention is not as limit.Wherein, in the present embodiment, this recessed structure comprises the sidewall bodies (such as comprising the part between inner surface 214a to the second side surface 202b) forming recessed space.Image light IL is from inner surface 214a exit optical path collocation structure 214.Similarly, the touch-control image that the image light that image capture unit 16 receives is formed is undistorted in fact, therefore can correctly judge that user is implemented on the touch control operation on screen 12 based on this touch-control image.Supplementary notes, in the present embodiment, the roughly rectangular groove structure of this recessed structure, but the present invention is not as limit, and such as, based on the distribution of image light IL in optical path compensation structure 214 travel path, it is example that this recessed structure is also able to wedge-shaped impression structure.In addition, about other explanations of TIR prism 21, refer to the related description of TIR prism 20, separately do not repeat.
Remark additionally, TIR prism the 20,21, the 3rd side surface 202c in foregoing embodiments is all adjacent to the 4th side surface 202d, but the present invention is not as limit again.In practical application, the 3rd side surface 202c and the relativeness of the 4th side surface 202d on body 202 can be determined according to the action of micro-mirror device 18, such as, design according to its available reflection direction.Separately do not repeat in this.
Foregoing embodiments is all to change or to compensate the travel path of image light IL again in TIR prism 20,21 after micro-mirror device 18 reflects, and to solve the problem of known possible optical path difference, but the present invention is not as limit.Refer to Fig. 4, its schematic diagram of a kind of touch control projection system 3 for providing according to a second embodiment of the present invention.Touch control projection system 3 comprises screen 32, light supply apparatus 34, image capture unit 36, micro-mirror device 38, total internal reflection prism 40 and light curtain generation device 42.Light supply apparatus 34 is for launching projection ray PL.Image capture unit 36 is in order to receive the image light IL from screen 32.Micro-mirror device 38 forms projection image in order to reflective projection light PL to be projected to screen 32, and in order to reflected image light IL to be received by image capture unit 36.Such as, micro-mirror device 18 can be DMD, but not as limit.TIR prism 40 is arranged at micro-mirror device 38 front, and the projection ray PL that light supply apparatus 34 can be produced reflexes to micro-mirror device 38, and allows that the projection ray PL that micro-mirror device 38 reflects passes.Light curtain generation device 42 produces light curtain 422 in screen 32 front, and image light IL is produced by light curtain 422.In practical application, although the actual light curtain 422 from screen 32 front of image light IL, with regard to the yardstick that whole touch control projection system 3 is installed, light curtain 422 is quite close to screen 32, this image light IL is considered as from screen 32, with simplified illustration by this instructions in logic.
Further, Fig. 5 is referred to.The schematic diagram of a kind of TIR prism 40 that Fig. 5 is the touch control projection system shown in Fig. 4.TIR prism 40 comprises body 402.Body 402 has the first side surface 402a, the second side surface 402b relative to the first side surface 402a and the 3rd side surface 402c adjacent to the second side surface 402b and the 4th side surface 402d, and the second side surface 402b is just to micro-mirror device 38.Body 402 also comprises hollow out passage 404 (its setting is shown in Figure 4 with dotted line frame table), runs through the second side surface 402b and the 4th side surface 402d.Supplementary notes, in Fig. 4, the travel path of TIR prism 40 and projection ray PL and image light IL is only conceptive to be illustrated.In the present embodiment, the structure about TIR prism 40 illustrates, take that shown in Figure 5 as Main Basis; Wherein in Fig. 5, micro-mirror device 38 illustrates with dotted outline, so that understand being oppositely arranged of TIR prism 40 and micro-mirror device 38.From light supply apparatus 34 projection ray PL from the 3rd side surface 402c enter body 402 and from second side surface 402b penetrate body 402, reflected by micro-mirror device 38 again, to enter body 402 again through the second side surface 402b and to penetrate body 402 to be projected on screen 32 from the first side surface 402a.From screen 32 image light IL from the first side surface 402a enter body 402 and from second side surface 402b penetrate body 402, reflected by micro-mirror device 38 again, to pass body 402, to be received by image capture unit 36 via hollow out passage 404 from the second side surface 402b to the 4th side surface 404d; Wherein image light IL is shown in Fig. 2 to be with arrow solid line, is represented by dotted lines by the part that body 402 covers.Because the image light IL after micro-mirror device 38 reflection is no longer through the entity of body 402, therefore do not have the problem of known optical path difference, that is the touch-control image that the image light that receives of image capture unit 36 is formed is undistorted in fact, therefore can correctly judge that user is implemented on the touch control operation on screen 32 based on this touch-control image.
Supplementary notes, in practical application, this hollow out passage 404 need consider the impact normally projected projection ray PL in the position that body 402 is formed, and avoids interfering the travel path of projection ray PL in TIR prism 40.This factor is considered as prior art person is based on this instructions, through simple designs, test and can meeting easily, does not separately repeat in this.In addition, though the non-entity of image light IL after micro-mirror device 38 reflects is through body 402, really still through the single solid space (or call the space that its outermost profile surrounds, or required installation space) occupied by body 402.Therefore, in the broadest sense, hollow out passage 404 is similar to aforementioned optical path compensation structure 204 technical logic, all adopts the technological thought overcoming the optical path difference problem that image light IL may cause through body 202,402 with structure.
In addition, in the present embodiment, hollow out passage 404 is example to connect the conial channel (opening in the second side surface 402b is less, and the opening in the 4th side surface 402d is larger) of the second side surface 402b and the 4th side surface 402d, but the present invention is not to be limited.Referring to Fig. 4 and Fig. 6.Fig. 6 is the schematic diagram of the another kind of TIR prism 41a of touch control projection system as shown in Figure 4.TIR prism 41a is identical with the setting position of TIR prism 40 in touch control projection system 3, therefore about the configuration relation of TIR prism 41a and other components, directly can consult the configuration of TIR prism 40 in Fig. 4, separately not repeat.In the present embodiment, TIR prism 41a is also roughly the same with TIR prism 40 structure, therefore TIR prism 41a still continues to use the component symbol of TIR prism 40.TIR prism 41a and TIR prism 40 main difference part are that the hollow out passage 414a of TIR prism 41a is recessed structure (or call slot), are positioned at the second side surface 402b and the 4th side surface 402d adjoiner and are recessed into body 402 from the second side surface 402b and the 4th side surface 402d to be formed.This hollow out passage 414a is suitable with hollow out passage 404 structure, but hollow out passage 414a comparatively hollow out passage 404 shaping convenience.Similarly, image light IL after micro-mirror device 38 reflects passes body 402 via hollow out passage 414a, the touch-control image that the image light that image capture unit 36 receives is formed is undistorted in fact, therefore can correctly judge that user is implemented on the touch control operation on screen 32 based on this touch-control image.What remark additionally is, in practical application, based on the distribution of image light IL in hollow out passage 414a travel path, it is example that this recessed structure (i.e. hollow out passage 414a) is able to wedge-shaped impression structure, is not limited in the present embodiment for roughly rectangular groove structure.
In addition, in the present embodiment, image light IL, after the first side surface 402a enters body 402, still penetrates body 402 from the second side surface 402b and is reflected by micro-mirror device 38, then via hollow out passage 414a through body 402.But the present invention is not as limit.Referring to Fig. 4 and Fig. 7.Fig. 7 is the schematic diagram of another TIR prism 41b of touch control projection system as shown in Figure 4.TIR prism 41b is identical with the setting position of TIR prism 40 in touch control projection system 3, therefore about the configuration relation of TIR prism 41b and other components, directly can consult the configuration of TIR prism 40 in Fig. 4, separately not repeat.In the present embodiment, TIR prism 41b is also roughly the same with TIR prism 41a structure, therefore TIR prism 41b still continues to use the component symbol of TIR prism 41a.TIR prism 41b and TIR prism 41a main difference part are that the recessed structure (i.e. hollow out passage 414b) of TIR prism 41b has the darker degree of depth, this recessed structure has inner surface 414c, this inner surface 414c is relative to the first side surface 402a and towards image capture unit 36, make from screen 32 image light IL from the first side surface 402a enter body 402 and from inner surface 414c penetrate body 402, enter this recessed structure (i.e. hollow out passage 414b), reflected by micro-mirror device 38 again, body 402 is passed from the second side surface 402b to the 4th side surface 402d again via this recessed structure, to be received by image capture unit 36.Similarly, the touch-control image that the image light that image capture unit 36 receives is formed is undistorted in fact, therefore can correctly judge that user is implemented on the touch control operation on screen 32 based on this touch-control image.Supplementary notes, in practical application, inner surface 414c is parallel with the first side surface 402a.In addition, the TIR prism 40 in foregoing embodiments, 41a, 41b, the 3rd side surface 402c is all adjacent to the 4th side surface 402d, but the present invention is not as limit.In practical application, the 3rd side surface 402c and the relativeness of the 4th side surface 402d on body 402 can be determined according to the action of micro-mirror device 38, such as, design according to its available reflection direction.Separately do not repeat in this.
As aforementioned explanation, the total internal reflection prism of touch control projection system of the present invention has optical path compensation structure or hollow out passage, the optical path difference that may cause when significantly being improved by this optical path compensation structure or hollow out passage or avoid image light to pass this total internal reflection prism, the touch-control image that the image light that this image capture unit is received is formed is undistorted in fact, therefore correctly can judge the touch control operation of user on screen.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the claims in the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a touch control projection system, comprises:
Screen;
Light supply apparatus, for launching projection ray;
Image capture unit, in order to receive the image light from this screen;
Micro-mirror device, in order to reflect this projection ray and this image light; And
Total internal reflection prism, comprises:
Body, there is the first side surface, the second side surface relative to this first side surface and the 3rd side surface adjacent to this second side surface and the 4th side surface, this second side surface is just to this micro-mirror device, enter this body from this projection ray of this light supply apparatus from the 3rd side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body to be projected on this screen from this first side surface; It is characterized in that, this total internal reflection prism also comprises:
Optical path compensation structure, be fixedly installed on the 4th side surface, enter this body from this image light of this screen from this first side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body through this optical path compensation structure, to be received by this image capture unit, wherein this image light to enter from this second side surface with diverse location and penetrate the light path that this body passes through through this optical path compensation structure identical.
2. touch control projection system as claimed in claim 1, is characterized in that, this optical path compensation structure is outstanding structure, and this optical path compensation structure protrudes from this body and is formed at the 4th side surface.
3. touch control projection system as claimed in claim 2, it is characterized in that, this optical path compensation structure is cylindrical-shaped structure or cone-shaped structure, the bottom surface of the end face of this cylindrical-shaped structure or this cone-shaped structure is towards this image capture unit, and this image light penetrates this optical path compensation structure from this end face or this bottom surface.
4. touch control projection system as claimed in claim 1, it is characterized in that, this optical path compensation structure is recessed structure, this optical path compensation structure is recessed into this body and is formed at the 4th side surface, inside this recessed structure, there is inner surface, this inner surface is towards this image capture unit, and this image light penetrates this optical path compensation structure from this inner surface.
5. touch control projection system as claimed in claim 1, it is characterized in that, the 3rd side surface is adjacent to the 4th side surface.
6. a touch control projection system, comprises:
Screen;
Light supply apparatus, for launching projection ray;
Image capture unit, in order to receive the image light from this screen;
Micro-mirror device, in order to reflect this projection ray and this image light; And
Total internal reflection prism, comprises:
Body, have the first side surface, the second side surface relative to this first side surface and the 3rd side surface adjacent to this second side surface and the 4th side surface, this second side surface is just to this micro-mirror device;
Wherein, enter this body from this projection ray of this light supply apparatus from the 3rd side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, to enter this body again through this second side surface and to penetrate this body to be projected on this screen from this first side surface; It is characterized in that,
This body comprises hollow out passage, run through this second side surface and the 4th side surface, enter this body from this image light of this screen from this first side surface and penetrate this body, reflected by this micro-mirror device again, this body is passed, to be received by this image capture unit from this second side surface to the 4th side surface via this hollow out passage.
7. touch control projection system as claimed in claim 6, it is characterized in that, this hollow out passage is recessed structure, is positioned at this second side surface and the 4th side surface adjoiner and is recessed into this body from this second side surface and the 4th side surface to be formed.
8. touch control projection system as claimed in claim 7, it is characterized in that, this recessed structure has inner surface, this inner surface is relative to this first side surface and towards this image capture unit, this is made to enter this body from this image light of this screen from this first side surface and penetrate this body from this inner surface, enter this recessed structure, reflected by this micro-mirror device again, this body is passed, to be received by this image capture unit from this second side surface to the 4th side surface again via this recessed structure.
9. touch control projection system as claimed in claim 6, it is characterized in that, enter this body from this image light of this screen from this first side surface and penetrate this body from this second side surface, reflected by this micro-mirror device again, this body is passed, to be received by this image capture unit from this second side surface to the 4th side surface via this hollow out passage.
10. touch control projection system as claimed in claim 6, it is characterized in that, the 3rd side surface is adjacent to the 4th side surface.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327561Y (en) * | 2008-09-24 | 2009-10-14 | 捷扬光电股份有限公司 | Light sensing device and projector employing same |
| TW201015111A (en) * | 2008-10-14 | 2010-04-16 | Young Optics Inc | Image projection and detection apparatus |
| TW201033637A (en) * | 2009-03-12 | 2010-09-16 | Young Optics Inc | Fixed-focus lens and apparatus integrating optical projection and image detection |
| CN103226411A (en) * | 2013-04-10 | 2013-07-31 | 苏州佳世达光电有限公司 | Interactive projection system and touch control interactive method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI292052B (en) * | 2006-05-09 | 2008-01-01 | Young Optics Inc | Optical projection and image detection apparatus |
| TWI402603B (en) * | 2009-04-06 | 2013-07-21 | Young Optics Inc | Optical engine |
-
2014
- 2014-01-09 CN CN201410008379.0A patent/CN103760741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201327561Y (en) * | 2008-09-24 | 2009-10-14 | 捷扬光电股份有限公司 | Light sensing device and projector employing same |
| TW201015111A (en) * | 2008-10-14 | 2010-04-16 | Young Optics Inc | Image projection and detection apparatus |
| TW201033637A (en) * | 2009-03-12 | 2010-09-16 | Young Optics Inc | Fixed-focus lens and apparatus integrating optical projection and image detection |
| CN103226411A (en) * | 2013-04-10 | 2013-07-31 | 苏州佳世达光电有限公司 | Interactive projection system and touch control interactive method thereof |
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