CN104182094A - Light curtain device - Google Patents
Light curtain device Download PDFInfo
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- CN104182094A CN104182094A CN201410381387.XA CN201410381387A CN104182094A CN 104182094 A CN104182094 A CN 104182094A CN 201410381387 A CN201410381387 A CN 201410381387A CN 104182094 A CN104182094 A CN 104182094A
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- housing
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- light source
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Abstract
The invention relates to a light curtain device. The light curtain device comprises a housing, a light source module, a first diffusing module and a plurality of second diffusing modules, wherein the light source module is arranged in the housing, and can rotate relative to a first axis which is parallel to the bottom surface of the housing; the first diffusing module is arranged in the housing, and can rotate relative to a second axis which is parallel to the bottom surface and perpendicular to the first axis; the second diffusing modules are arranged in the housing; the first diffusing module is positioned between the light source module and the second diffusing modules, and each second diffusing module can rotate relative to the first axis and the second axis.
Description
Technical field
The present invention is about a kind of smooth proscenia, the light proscenia in espespecially a kind of adjustable lay the grain curtain path.
Background technology
Under touch-control system reaches its maturity, the electronic installation that has large scale and multipoint-touch-technology will become the not main flow of Come.At present, optical touch control system is compared other modes, as resistance-type, condenser type, ultrasonic formula etc., has more low-cost and advantage that more easily reach.Along with scientific and technological progress and development, the optical projection system with touch controllable function is also more and more universal.Generally speaking, the optical projection system that has a touch controllable function is to utilize light curtain that light proscenia produces as touch-control sensing light source.The camera lens of Yu Shi projector accurately senses arbitrary touch point on display plane, and light curtain path just needs to keep certain depth of parallelism with display plane.When the relative display plane in light curtain path produces when crooked, just can affect the accuracy of touch-control, and then cause the inconvenience in use.
Summary of the invention
One of object of the present invention is to provide the light proscenia in a kind of adjustable lay the grain curtain path, to address the above problem.
For achieving the above object, the invention provides a kind of smooth proscenia, comprise:
Housing;
Light source module, is arranged in this housing, and this light source module can rotate relative to first axle, the bottom surface of parallel this housing of this first axle;
The first diffusion module, is arranged in this housing, and this first diffusion module can rotate relative to the second axis, parallel this bottom surface of this second axis and vertically this first axle; And
A plurality of the second diffusion modules, are arranged in this housing, and this first diffusion module is between this light source module and these the second diffusion modules, and each this second diffusion module can rotate relative to this first axle and this second axis.
Preferably, relative this first diffusion module of these the second diffusion modules is arranged in arc.
Preferably, this light source module comprises light source, light source loading seat, the first adjustment part, the first fixture and the first elastic component, this light source is arranged on this light source loading seat, this light source loading seat has the first hole, one end of this first fixture is fixed on this housing through this first elastic component and this first hole, this first adjustment part be spirally connected this light source loading seat and this housing one of them and this light source loading seat of butt and this housing wherein another, when this first adjustment part rotates, this first adjustment part drives this light source loading seat to rotate relative to this first axle.
Preferably, this first diffusion module comprises the first diffusion sheet and the first load bearing seat, and this first diffusion sheet is arranged on this first load bearing seat, and this first load bearing seat is articulated on this housing and can rotates relative to this second axis.
Preferably, each this second diffusion module can further rotate relative to the 3rd axis, vertical this bottom surface of the 3rd axis.This the second diffusion module comprises the second diffusion sheet, the second load bearing seat, web member, base, the second adjustment part, the second fixture and the second elastic component, this second diffusion sheet is arranged on this second load bearing seat, this second load bearing seat is articulated on this web member and can rotates relative to this second axis, this web member is articulated on this base and can rotates relative to the 3rd axis, this base has the second hole, one end of this second fixture is fixed on this housing through this second elastic component and this second hole, this second adjustment part be spirally connected this base and this housing one of them and this base of butt and this housing wherein another, when this second adjustment part rotates, this second adjustment part drives this base to rotate relative to this first axle.
For achieving the above object, the present invention also provides another light proscenia, comprises:
Housing;
Light source module, is arranged in this housing;
The first diffusion module, is arranged in this housing, and this first diffusion module can rotate relative to first axle and the second axis, the bottom surface of parallel this housing of this first axle, parallel this bottom surface of this second axis and vertically this first axle; And
A plurality of the second diffusion modules, are arranged in this housing, and this first diffusion module is between this light source module and these the second diffusion modules, and each this second diffusion module can rotate relative to this first axle and this second axis.
Preferably, relative this first diffusion module of these the second diffusion modules is arranged in arc.
Preferably, this the first diffusion module comprises the first diffusion sheet, the first load bearing seat, the first base, the first adjustment part, the first fixture and the first elastic component, this first diffusion sheet is arranged on this first load bearing seat, this first load bearing seat is articulated on this first base and can rotates relative to this second axis, this first base has the first hole, one end of this first fixture is fixed on this housing through this first elastic component and this first hole, this first adjustment part be spirally connected this first base and this housing one of them and this first base of butt and this housing wherein another, when this first adjustment part rotates, this first adjustment part drives this first base to rotate relative to this first axle.
Preferably, each this second diffusion module can further rotate relative to the 3rd axis, vertical this bottom surface of the 3rd axis.This the second diffusion module comprises the second diffusion sheet, the second load bearing seat, web member, the second base, the second adjustment part, the second fixture and the second elastic component, this second diffusion sheet is arranged on this second load bearing seat, this second load bearing seat is articulated on this web member and can rotates relative to this second axis, this web member is articulated on this second base and can rotates relative to the 3rd axis, this second base has the second hole, one end of this second fixture is fixed on this housing through this second elastic component and this second hole, this second adjustment part be spirally connected this second base and this housing one of them and this second base of butt and this housing wherein another, when this second adjustment part rotates, this second adjustment part drives this second base to rotate relative to this first axle.
Compare with prior art, in the present invention, when the relative display plane in light curtain path produces when crooked, user optionally rotates light source module, the first diffusion module and/or the second diffusion module, by light curtain route adjust, be parallel with display plane, to guarantee the accuracy of touch-control.The present invention is not only easy to operate and do not need special rectifying an instrument, and can effectively save the adjustment time.
Can be by following detailed Description Of The Invention and appended graphic being further understood about the advantages and spirit of the present invention.
Accompanying drawing explanation
Fig. 1 is the stereographic map of light proscenia according to an embodiment of the invention.
Fig. 2 is that light proscenia in Fig. 1 is in the perspective interior view at another visual angle.
Fig. 3 is the vertical view of the light proscenia in Fig. 1.
Fig. 4 is that light proscenia in Fig. 3 is along the sectional view of A-A line.
Fig. 5 is that light proscenia in Fig. 3 is along the sectional view of B-B line.
Fig. 6 is the sectional view of light source module according to another embodiment of the present invention.
Fig. 7 be according to another embodiment of the present invention second diffusion module sectional view.
Fig. 8 is the stereographic map of light proscenia according to another embodiment of the present invention.
Fig. 9 is the part sectioned view of the light proscenia in Fig. 8.
Embodiment
For making that object of the present invention, structure, feature and function thereof are had to further understanding, hereby coordinate embodiment to be described in detail as follows.
Refer to Fig. 1 to Fig. 5, Fig. 1 is the stereographic map of light proscenia 1 according to an embodiment of the invention, Fig. 2 is that light proscenia 1 in Fig. 1 is in the perspective interior view at another visual angle, Fig. 3 is the vertical view of the light proscenia 1 in Fig. 1, Fig. 4 be light proscenia 1 in Fig. 3 along the sectional view of A-A line, Fig. 5 is that light proscenia 1 in Fig. 3 is along the sectional view of B-B line.
As shown in Figure 1 to Figure 3, light proscenia 1 comprises housing 10, light source module 12, the first diffusion module 14 and a plurality of the second diffusion module 16, wherein light source module 12, the first diffusion module 14 and the second diffusion module 16 are all arranged in housing 10, and the first diffusion module 14 is between light source module 12 and the second diffusion module 16.In this embodiment, four second diffusion modules 16 are arranged in housing 10, and relative the first diffusion module 14 is arranged in arc.It should be noted that, quantity and the arrangement mode of the second diffusion module 16 can decide according to practical application, with the above embodiments, are not limited.
Smooth proscenia 1 of the present invention can be arranged at before display plane (not shown), and collocation optical touch control projector (not shown) reaches touch projection function.Light source module 12 for example, in order to send invisible light (, laser, infrared ray or other invisible light) towards the first diffusion module 14.Light, after the first diffusion module 14, can be converted to multiple spot light or the face light towards the second diffusion module 16 by the first diffusion module 14.Then, multiple spot light or face light are converted to a plurality of light by the second diffusion module 16 again.These a plurality of light are to project housing 10 rear overlapped at least partly, and before display plane, form light curtain.For example, when user (utilizes touch-control object, finger, pointer etc.) before display plane, carry out touch control operation and during the light of shading light curtain optional position, the camera lens of optical touch control projector can carry out the position of touch-control according to the image judgement user of acquisition, and then carries out corresponding touch controllable function.
As shown in Figure 3, light source module 12 can rotate relative to first axle X, the first diffusion module 14 can rotate relative to the second axis Y, and each second diffusion module 16 can rotate relative to first axle X and the second axis Y, the bottom surface 100 of the parallel housing 10 in the wherein bottom surface 100 of the parallel housing 10 of first axle X, and the second axis Y and vertical first axle X.By this, when the relative display plane in light curtain path produces when crooked, user optionally rotates light source module 12, relative to the second axis Y, rotates the first diffusion module 14 and/or rotate the second diffusion module 16 relative to first axle X and the second axis Y relative to first axle X, by light curtain route adjust, be parallel with display plane, to guarantee the accuracy of touch-control.
In addition, each second diffusion module 16 can further rotate relative to the 3rd axis Z, wherein the bottom surface 100 of the 3rd axis Z vertical shell 10.User also optionally rotates the second diffusion module 16 relative to the 3rd axis Z, to adjust the overlapping range of a plurality of light that send from the second diffusion module 16, and then adjusts the scope that light curtain is contained.
As shown in Figures 1 to 4, light source module 12 comprises light source 120, light source loading seat 122, the first adjustment part 124, the first fixture 126 and the first elastic component 128.Light source 120 is arranged on light source loading seat 122, and wherein light source 120 can be to send the invisible light light source of above-mentioned invisible light.Light source loading seat 122 has the first hole 1220.One end of the first fixture 126 is fixed on the holder 102 of housing 10 through the first elastic component 128 and the first hole 1220, and wherein the first fixture 126 can be screw, and the first elastic component 128 can be spring.The be spirally connected holder 102 of light source loading seat 122 and butt housing 10 of the first adjustment part 124, wherein the first adjustment part 124 can be screw.In this embodiment, four the first fixtures 126 are fixed on the holder 102 of housing 10 through four the first elastic components 128 and four the first holes 1220.It should be noted that, the quantity of the first fixture 126, the first elastic component 128 and the first hole 1220 can decide according to practical application, with above-described embodiment, is not limited.
Due to the be spirally connected holder 102 of light source loading seat 122 and butt housing 10 of the first adjustment part 124, when the first adjustment part 124 rotates, the screw thread on the first adjustment part 124 can drive light source loading seat 122 to rotate relative to first axle X.By this, user can rotate the first adjustment part 124 relative to first axle X and adjust the opticpath that light source 120 sends.
In addition, the first diffusion module 14 comprises the first diffusion sheet 140 and the first load bearing seat 142.The first diffusion sheet 140 is arranged on the first load bearing seat 142, and wherein the first diffusion sheet 140 can be multiple spot diffusion sheet or fan-shaped diffusion sheet, with the light that light source 120 is sent, is converted to multiple spot light or face light.The first load bearing seat 142 is articulated on the holder 102 of housing 10 and can rotates relative to the second axis Y by pivot 1420.By this, user can rotate the first load bearing seat 142 relative to the second axis Y and adjust the opticpath projecting from the first diffusion sheet 140.
As shown in Fig. 2 and Fig. 5, the second diffusion module 16 comprises the second diffusion sheet 160, the second load bearing seat 162, web member 164, base 166, the second adjustment part 168, the second fixture 170 and the second elastic component 172.The second diffusion sheet 160 is arranged on the second load bearing seat 162, and wherein the second diffusion sheet 160 can be fan-shaped diffusion sheet.The second load bearing seat 162 is articulated on web member 164 and can rotates relative to the second axis Y by pivot 1620.Web member 164 is articulated on base 166 and can rotates relative to the 3rd axis Z by pivot 1640.Base 166 has the second hole 1660.One end of the second fixture 170 is fixed on housing 10 through the second elastic component 172 and the second hole 1660, and wherein the second fixture 170 can be screw, and the second elastic component 172 can be spring.The second adjustment part 168 be spirally connected housing 10 and butt base 166, wherein the second adjustment part 168 can be screw.In this embodiment, two the second fixtures 170 are fixed on housing 10 through two the second elastic components 172 and two the second holes 1660.It should be noted that, the quantity of the second fixture 170, the second elastic component 172 and the second hole 1660 can decide according to practical application, with above-described embodiment, is not limited.
Due to the second adjustment part 168 be spirally connected housing 10 and butt base 166, when the second adjustment part 168 rotates, the second adjustment part 168 can drive base 166 to rotate relative to first axle X.By this, user can rotate the second adjustment part 168 relative to first axle X and adjust the opticpath projecting from the second diffusion sheet 160.In addition, user also can rotate the second load bearing seat 162 relative to the second axis Y and adjust the opticpath projecting from the second diffusion sheet 160.Moreover user also can adjust the opticpath projecting from the second diffusion sheet 160 by relative the 3rd axis Z rotating connector 164.
Refer to Fig. 6, Fig. 6 is the sectional view of light source module 12' according to another embodiment of the present invention.The main difference part of light source module 12' and above-mentioned light source module 12 is, the first adjustment part 124 of light source module 12' be spirally connected holder 102 and the butt light source loading seat 122 of housing 10, as shown in Figure 6.Due to the first adjustment part 124 be spirally connected holder 102 and the butt light source loading seat 122 of housing 10, when the first adjustment part 124 rotates, the first adjustment part 124 can drive light source loading seat 122 to rotate relative to first axle X.By this, user can rotate the first adjustment part 124 relative to first axle X and adjust the opticpath that light source 120 sends.
Therefore, the first adjustment part 124 of the present invention be optionally spirally connected one of them and the butt light source loading seat 122 of holder 102 of light source loading seat 122 and housing 10 and the holder 102 of housing 10 wherein another.
Refer to Fig. 7, Fig. 7 is the sectional view of the second diffusion module 16' according to another embodiment of the present invention.The second diffusion module 16' is with the main difference part of above-mentioned the second diffusion module 16, the second the second adjustment part 168 that spreads module 16' be spirally connected base 166 and butt housing 10, as shown in Figure 7.Due to the second adjustment part 168 be spirally connected base 166 and butt housing 10, when the second adjustment part 168 rotates, the screw thread on the second adjustment part 168 can drive base 166 to rotate relative to first axle X.By this, user can rotate the second adjustment part 168 relative to first axle X and adjust the opticpath projecting from the second diffusion sheet 160.
Therefore, the second adjustment part 168 of the present invention be optionally spirally connected base 166 and housing 10 one of them and butt base 166 and housing 10 wherein another.
Refer to Fig. 8 and Fig. 9, Fig. 8 is the stereographic map of light proscenia 3 according to another embodiment of the present invention, and Fig. 9 is the part sectioned view of the light proscenia 3 in Fig. 8.Light proscenia 3 is with the main difference part of above-mentioned light proscenia 1, and the light source module 32 of light proscenia 3 is arranged in housing 10 immovably, and the first diffusion module 34 of light proscenia 3 can rotate relative to first axle X and the second axis Y.In this embodiment, light source module 32 can be fixed in housing 10 by screwed lock.
As shown in Fig. 8 and Fig. 9, the first diffusion module 34 comprises the first diffusion sheet 340, the first load bearing seat 342, the first base 344, the first adjustment part 346, the first fixture 348 and the first elastic component 350.The first diffusion sheet 340 is arranged on the first load bearing seat 342, and wherein the first diffusion sheet 340 can be multiple spot diffusion sheet or fan-shaped diffusion sheet, with the light that light source 120 is sent, is converted to multiple spot light or face light.The first load bearing seat 342 is articulated on the first base 344 and can rotates relative to the second axis Y by pivot 3420.The first base 344 has the first hole 3440.One end of the first fixture 348 is fixed on housing 10 through the first elastic component 350 and the first hole 3440, and wherein the first fixture 348 can be screw, and the first elastic component 350 can be spring.The first adjustment part 346 be spirally connected housing 10 and butt the first base 344, wherein the first adjustment part 346 can be screw.In this embodiment, two the first fixtures 348 are fixed on housing 10 through two the first elastic components 350 and two the first holes 3440.It should be noted that, the quantity of the first fixture 348, the first elastic component 350 and the first hole 3440 can decide according to practical application, with above-described embodiment, is not limited.
Due to the first adjustment part 346 be spirally connected housing 10 and butt the first base 344, when the first adjustment part 346 rotates, the first adjustment part 346 can drive the first base 344 to rotate relative to first axle X.By this, user can rotate the first adjustment part 346 relative to first axle X and adjust the opticpath projecting from the first diffusion sheet 340.In addition, user also can rotate the first load bearing seat 342 relative to the second axis Y and adjust the opticpath projecting from the first diffusion sheet 340.
It should be noted that, in Fig. 8 to Fig. 9, with the element of same numeral shown in Fig. 1 to Fig. 5, its action principle is roughly the same, does not repeat them here.
In sum, when the relative display plane in light curtain path produces when crooked, user optionally rotates light source module, the first diffusion module and/or the second diffusion module, is parallel with display plane, to guarantee the accuracy of touch-control by light curtain route adjust.The present invention is not only easy to operate and do not need special rectifying an instrument, and can effectively save the adjustment time.
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 having disclosed does not limit the scope of the invention.On the contrary, the change done 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 (11)
1. a light proscenia, is characterized in that, comprises:
Housing;
Light source module, is arranged in this housing, and this light source module can rotate relative to first axle, the bottom surface of parallel this housing of this first axle;
The first diffusion module, is arranged in this housing, and this first diffusion module can rotate relative to the second axis, parallel this bottom surface of this second axis and vertically this first axle; And
A plurality of the second diffusion modules, are arranged in this housing, and this first diffusion module is between this light source module and these the second diffusion modules, and each this second diffusion module can rotate relative to this first axle and this second axis.
2. smooth proscenia as claimed in claim 1, is characterized in that, these the second diffusion modules relatively this first diffusion module are arranged in arc.
3. smooth proscenia as claimed in claim 1, it is characterized in that, this light source module comprises light source, light source loading seat, the first adjustment part, the first fixture and the first elastic component, this light source is arranged on this light source loading seat, this light source loading seat has the first hole, one end of this first fixture is fixed on this housing through this first elastic component and this first hole, this first adjustment part be spirally connected this light source loading seat and this housing one of them and this light source loading seat of butt and this housing wherein another, when this first adjustment part rotates, this first adjustment part drives this light source loading seat to rotate relative to this first axle.
4. smooth proscenia as claimed in claim 1, it is characterized in that, this the first diffusion module comprises the first diffusion sheet and the first load bearing seat, and this first diffusion sheet is arranged on this first load bearing seat, and this first load bearing seat is articulated on this housing and can rotates relative to this second axis.
5. smooth proscenia as claimed in claim 1, is characterized in that, each this second diffusion module can further rotate relative to the 3rd axis, vertical this bottom surface of the 3rd axis.
6. smooth proscenia as claimed in claim 5, it is characterized in that, this the second diffusion module comprises the second diffusion sheet, the second load bearing seat, web member, base, the second adjustment part, the second fixture and the second elastic component, this second diffusion sheet is arranged on this second load bearing seat, this second load bearing seat is articulated on this web member and can rotates relative to this second axis, this web member is articulated on this base and can rotates relative to the 3rd axis, this base has the second hole, one end of this second fixture is fixed on this housing through this second elastic component and this second hole, this second adjustment part be spirally connected this base and this housing one of them and this base of butt and this housing wherein another, when this second adjustment part rotates, this second adjustment part drives this base to rotate relative to this first axle.
7. a light proscenia, is characterized in that, comprises:
Housing;
Light source module, is arranged in this housing;
The first diffusion module, is arranged in this housing, and this first diffusion module can rotate relative to first axle and the second axis, the bottom surface of parallel this housing of this first axle, parallel this bottom surface of this second axis and vertically this first axle; And
A plurality of the second diffusion modules, are arranged in this housing, and this first diffusion module is between this light source module and these the second diffusion modules, and each this second diffusion module can rotate relative to this first axle and this second axis.
8. smooth proscenia as claimed in claim 7, is characterized in that, these the second diffusion modules relatively this first diffusion module are arranged in arc.
9. smooth proscenia as claimed in claim 7, it is characterized in that, this the first diffusion module comprises the first diffusion sheet, the first load bearing seat, the first base, the first adjustment part, the first fixture and the first elastic component, this first diffusion sheet is arranged on this first load bearing seat, this first load bearing seat is articulated on this first base and can rotates relative to this second axis, this first base has the first hole, one end of this first fixture is fixed on this housing through this first elastic component and this first hole, this first adjustment part be spirally connected this first base and this housing one of them and this first base of butt and this housing wherein another, when this first adjustment part rotates, this first adjustment part drives this first base to rotate relative to this first axle.
10. smooth proscenia as claimed in claim 7, is characterized in that, each this second diffusion module can further rotate relative to the 3rd axis, vertical this bottom surface of the 3rd axis.
11. smooth proscenias as claimed in claim 10, it is characterized in that, this the second diffusion module comprises the second diffusion sheet, the second load bearing seat, web member, the second base, the second adjustment part, the second fixture and the second elastic component, this second diffusion sheet is arranged on this second load bearing seat, this second load bearing seat is articulated on this web member and can rotates relative to this second axis, this web member is articulated on this second base and can rotates relative to the 3rd axis, this second base has the second hole, one end of this second fixture is fixed on this housing through this second elastic component and this second hole, this second adjustment part be spirally connected this second base and this housing one of them and this second base of butt and this housing wherein another, when this second adjustment part rotates, this second adjustment part drives this second base to rotate relative to this first axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381387.XA CN104182094B (en) | 2014-08-05 | 2014-08-05 | Light proscenia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410381387.XA CN104182094B (en) | 2014-08-05 | 2014-08-05 | Light proscenia |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104182094A true CN104182094A (en) | 2014-12-03 |
| CN104182094B CN104182094B (en) | 2017-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410381387.XA Active CN104182094B (en) | 2014-08-05 | 2014-08-05 | Light proscenia |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786265A (en) * | 2014-12-17 | 2016-07-20 | 中强光电股份有限公司 | Optical touch system, light curtain generation module and adjustment structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010026966A (en) * | 2008-07-24 | 2010-02-04 | Epson Imaging Devices Corp | Lighting system, coordinate input device, electrooptical device, and electronic device |
| CN102043542A (en) * | 2009-10-15 | 2011-05-04 | 中强光电股份有限公司 | Optical touch device, optical touch display device and light source module |
| TW201416946A (en) * | 2012-10-31 | 2014-05-01 | Au Optronics Corp | Touch display device |
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2014
- 2014-08-05 CN CN201410381387.XA patent/CN104182094B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010026966A (en) * | 2008-07-24 | 2010-02-04 | Epson Imaging Devices Corp | Lighting system, coordinate input device, electrooptical device, and electronic device |
| CN102043542A (en) * | 2009-10-15 | 2011-05-04 | 中强光电股份有限公司 | Optical touch device, optical touch display device and light source module |
| TW201416946A (en) * | 2012-10-31 | 2014-05-01 | Au Optronics Corp | Touch display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786265A (en) * | 2014-12-17 | 2016-07-20 | 中强光电股份有限公司 | Optical touch system, light curtain generation module and adjustment structure |
| CN105786265B (en) * | 2014-12-17 | 2018-09-25 | 中强光电股份有限公司 | Optical touch control system, light curtain generation module and adjustment structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104182094B (en) | 2017-03-08 |
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