CN102880359B - Infrared touch screen receiving structure - Google Patents
Infrared touch screen receiving structure Download PDFInfo
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- CN102880359B CN102880359B CN201210376102.4A CN201210376102A CN102880359B CN 102880359 B CN102880359 B CN 102880359B CN 201210376102 A CN201210376102 A CN 201210376102A CN 102880359 B CN102880359 B CN 102880359B
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- 239000013307 optical fiber Substances 0.000 claims abstract description 72
- 238000003331 infrared imaging Methods 0.000 claims abstract description 36
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000002310 reflectometry Methods 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000009792 diffusion process Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000002834 transmittance Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000644 propagated effect Effects 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 4
- 238000012163 sequencing technique Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000011514 reflex Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention discloses an infrared touch screen receiving structure, which comprises: the infrared receiving terminal is used for fixing an optical fiber for receiving an infrared signal; the optical fiber is used for receiving an infrared signal sent by the infrared transmitting device, and one end of the optical fiber is fixedly arranged on the infrared receiving terminal; the infrared imaging device is used for receiving the infrared signals transmitted by the optical fibers and forming corresponding pixel points according to the infrared signals; and the image processing module is electrically connected with the infrared imaging device and is used for converting the pixel points into coordinate information of a touch area of the infrared touch screen. The invention can realize the function of the infrared receiving tube of the common infrared touch screen by using one infrared imaging device, can effectively reduce the manufacturing cost due to the low cost of the optical fiber and the infrared imaging device, and is beneficial to improving the resolution of the infrared touch screen because the optical fiber is much smaller than the common infrared receiving tube. [ b ]
Description
Technical field
The present invention relates to infrared touch display screen technology, be specifically related to a kind of infrared touch panel and receive structure.
Background technology
Infrared touch display screen utilizes the infrared signal matrix that X, Y-direction are gathered to detect and the touch of consumer positioning.Infrared touch panel installs a circuit board housing before its display, and circuit board is at screen four limit arrangement infrared transmitting tube and infrared receiving tube, and one_to_one corresponding forms the infrared signal matrix anyhow intersected.User, when touch screen, points two infrared signals anyhow that will block through this position, thus can judge the position of touch point at screen.Any touching object all can change the infrared signal on contact and realize touch screen operation.Infrared touch panel is not by electric current, voltage and electrostatic interference, and suitable rugged environment condition, infrared signal technology is the final development trend of touch-screen product.Adopt the touch screen of acoustics and other materialogy technology to have it to be difficult to the barrier gone beyond, impaired, aging as single-sensor, touch interface is afraid of contaminated, destructive use, safeguards numerous and diverse etc. problem.
Because infrared touch screen performance depends primarily on quality and the quantity of infrared transmitting tube and infrared receiving tube, therefore a considerable amount of infrared transmitting tube of all outfits of every block infrared touch panel and infrared receiving tube, too much infrared transmitting tube and infrared receiving tube can cause the dual rising of cost and volume, particularly infrared receiving tube is owing to being single independently processing unit and small volume, during manufacture, accuracy requirement is high especially.
Summary of the invention
For the deficiencies in the prior art, object of the present invention is intended to provide a kind of infrared touch panel to receive structure, and it has the repertoire of common infrared receiving tube, and have more compact structure, be beneficial to the arrangement density improving infrared touch panel infrared receiver end, meanwhile, the corresponding reduction of manufacturing cost.
For achieving the above object, the present invention adopts following technical scheme:
Infrared touch panel receives structure, and it comprises:
Infrared receiver terminal, for the optical fiber of fixed reception infrared signal;
Optical fiber, for receiving the infrared signal that infrared launcher sends, one end of described optical fiber is fixedly installed on infrared receiver terminal;
Infrared imaging device, for receiving the infrared signal of optical fiber transmission and forming corresponding pixel according to infrared signal;
Image processing module, is electrically connected with described infrared imaging device, for described pixel being changed into the coordinate information of infrared touch panel touch area.
As a kind of embodiment, described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Infrared transmitting tube, for launching infrared signal, described infrared transmitting tube is uniformly distributed on the adjacent dual-side of rectangular circuit board housing;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and infrared receiver terminal and infrared transmitting tube are oppositely arranged one by one.
As another kind of embodiment, described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Two infrared transmitting tubes, for launching infrared signal, described two infrared transmitting tubes arrange the end of the adjacent dual-side of rectangular circuit board housing respectively;
Two transparency mirror groups, with described two infrared transmitting tube one_to_one corresponding, are arranged on the side at each self-corresponding infrared transmitting tube place respectively, for the infrared signal that its corresponding infrared transmitting tube of transmittance and reflectance is launched;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and each transparency mirror one_to_one corresponding of infrared receiver terminal and two transparency mirror groups.
Preferably, the reflectivity of described two transparency mirror groups all increases successively along the optical path direction of the photoemissive infrared signal of the infrared emission of its correspondence.
As another embodiment, described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Infrared transmitting tube, for launching infrared signal, described infrared transmitting tube is arranged at the end of a rectangular circuit board housing wherein side;
First transparency mirror group, for the infrared signal that transmittance and reflectance infrared transmitting tube is launched, described first transparency mirror group is arranged on the side at infrared transmitting tube place;
Transmit catoptron, for receiving and reflect the infrared signal of the first transparency mirror group transmission, described transmission catoptron is arranged at the other end of described side;
Second transparency mirror group, is disposed adjacent with described side, for transmitting the infrared signal of catoptron reflection described in transmittance and reflectance;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and each transparency mirror one_to_one corresponding of each transparency mirror of infrared receiver terminal and the first transparency mirror group, the second transparency mirror group.
Preferably, the reflectivity of described first transparency mirror group increases successively along the optical path direction of the photoemissive infrared signal of infrared emission, and the reflectivity of described second transparency mirror group to increase and the reflectivity of the second transparency mirror group is all greater than the reflectivity transmitting catoptron successively along the optical path direction transmitting the infrared signal that catoptron is launched.
As improvement, described infrared receiver terminal is provided with an optical fiber mounting hole, optical fiber is fixedly installed in this optical fiber mounting hole, and be provided with an infrared diffusion tip in described optical fiber mounting hole, described infrared diffusion tip is connected with the end of optical fiber.Infrared diffusion tip re-shoots optical fiber after the infrared signal of the one way propagation received is carried out diffuse reflection process, and the infrared signal propagated by multi-angle is more conducive to propagate in a fiber.
Preferably, the quantity of the pixel of described infrared imaging device is at least four times in number of fibers, and namely the pixel of more than four responds to an optical fiber, and more pixel monitoring effectively can prevent the generation of rub-out signal.
As improvement, described infrared touch panel receives the cover plate that structure comprises a fixing infrared imaging device further, and described cover plate is provided with the fixed orifice of the fixed fiber other end, and the infrared signal transmitted by optical fiber is transmitted on infrared imaging device through this fixed orifice.Fixed the other end of infrared imaging device and fixed orifice fixed fiber by cover plate, be conducive to integrally-built stability.
Compared to prior art, beneficial effect of the present invention is:
1, the present invention just can realize the function of common infrared touch panel infrared receiving tube by use one piece of infrared imaging device, due to optical fiber and infrared imaging device cost low, effectively can reduce manufacturing cost, simultaneously because the infrared receiving tube that optical fiber is more common is little many, be beneficial to infrared touch panel and improve self resolution.
2, the optical fiber installed by infrared receiver terminal place after being launched by the infrared signal that infrared transmitting tube is launched by transparency mirror group is propagated, can only use one or two infrared transmitting tubes can form crisscross infrared signal, infrared receiving device being arranged convenient, the resolution of infrared touch panel can be improved by placing more transparency mirror.
3, arrange infrared diffusion tip at the optical fiber mounting hole of infrared receiver terminal, it re-shoots optical fiber after infrared signal of the one way propagation received is carried out diffuse reflection process, and the infrared signal propagated by multi-angle is more conducive to propagate in a fiber.
4, infrared imaging device has at least four pixels to respond to an optical fiber, more pixel monitoring effectively can prevent the generation of rub-out signal.
Accompanying drawing explanation
Fig. 1 is the structural representation that infrared touch panel of the present invention receives structure;
Fig. 2 is the structural representation of infrared launcher embodiment one of the present invention;
Fig. 3 is the structural representation of infrared launcher embodiment two of the present invention;
Fig. 4 is the structural representation of infrared launcher embodiment three of the present invention;
Fig. 5 is the structural representation of cover plate of the present invention.
Wherein: 100, rectangular circuit board housing; 200, infrared transmitting tube; 210, the first infrared transmitting tube; 220, the second infrared transmitting tube; 230, the first transparency mirror group; 231, transparency mirror; 240, the second transparency mirror group; 241, transparency mirror; 250, infrared transmitting tube; 260, the first transparency mirror group; 261, transparency mirror; 262, catoptron is transmitted; 270, the second transparency mirror group; 271, transparency mirror; 300, infrared receiver terminal; 310, optical fiber; 400, cover plate; 410, fixed orifice; 500, infrared imaging device.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further:
Embodiment one
As shown in Figure 1, Figure 2 with shown in Fig. 5, infrared touch panel receives structure, it comprises infrared receiver terminal 300, optical fiber 310, infrared imaging device 500, image processing module (not shown), and wherein infrared receiver terminal 300 is for the optical fiber 310 of fixed reception infrared signal; The infrared signal that optical fiber 310 sends for receiving infrared launcher, infrared receiver terminal 300 is provided with an optical fiber mounting hole (not shown), and one end of optical fiber 310 fixedly mounts in this optical fiber mounting hole; Infrared imaging device 500 is for receiving the infrared signal of optical fiber 310 transmission and forming corresponding pixel according to infrared signal; Image processing module and infrared imaging device 500 are electrically connected, for the pixel of infrared imaging device 500 being changed into the coordinate information of infrared touch panel touch area.The present invention replaces the infrared receiving tube arranged on rectangular circuit board housing 100 of prior art by above-mentioned reception structure, realize the function that infrared receiving tube is identical, infrared signal infrared launcher can launched is transmitted to the coordinate information being converted to infrared touch panel touch area after on infrared imaging device 500 by image processing module by optical fiber 310, concrete conversion is: image processing module comprises a storer, comparison database is stored in this storer, the infrared signal that the optical fiber 310 that infrared imaging device 500 captures is propagated, through image procossing determination infrared signal image coordinate (i.e. the pixel of infrared imaging device 500 correspondence), information corresponding in comparison database is selected by this coordinate, the coordinate information of this information and touch area, thus realize the touch location of infrared touch panel.Due to optical fiber 310 and infrared imaging device 500 cost low, effectively can reducing manufacturing cost, simultaneously because the infrared receiving tube that optical fiber 310 is more common is little many, to realize self resolution of raising infrared touch panel to terminal by arranging more infrared receiver.
Diffusion tip (not shown) is provided with in the optical fiber mounting hole of infrared receiver terminal 300, this diffusion tip is connected with optical fiber 310, it re-shoots optical fiber 310 after infrared signal of the one way propagation received is carried out diffuse reflection process, and the infrared signal propagated by multi-angle is more conducive to propagate in a fiber.
The quantity of the pixel of infrared imaging device 500 is at least four times in number of fibers, namely has the pixel of more than four to respond to an optical fiber, and more pixel monitoring effectively can prevent the generation of rub-out signal.
Infrared touch panel receives the cover plate 400 that structure comprises a fixing infrared imaging device 500 further, cover plate 400 covers this infrared imaging device 500, cover plate 400 is provided with the fixed orifice 410 of fixed fiber 310 other end, and the infrared signal transmitted by optical fiber 310 is transmitted on infrared imaging device 500 through this fixed orifice 410.Fixed the other end of infrared imaging device 500 and fixed orifice 410 fixed fiber 310 by cover plate 400, be conducive to integrally-built stability.
In the present embodiment, infrared launcher comprises rectangular circuit board housing 100, infrared transmitting tube 200, wherein rectangular circuit board housing 100 is for the formation of crisscross infrared signal, and rectangular circuit board housing is arranged at the front side of infrared touch panel (i.e. display); Infrared transmitting tube 200 is for launching infrared signal, and infrared transmitting tube 200 is multiple, and multiple infrared transmitting tube 200 is uniformly distributed on the adjacent dual-side of rectangular circuit board housing 100; Infrared receiver terminal 300 is also multiple, multiple infrared receiver terminal 300 is uniformly distributed on the other dual-side of rectangular circuit board housing 100, and infrared receiver terminal 300 and infrared transmitting tube 200 are oppositely arranged one by one, it is namely the infrared signal that the optical fiber 310 one_to_one corresponding propagation infrared transmitting tube 200 that each infrared receiver terminal 300 is installed is launched.
Embodiment two
As shown in Fig. 1, Fig. 3 and Fig. 5, embodiment two and embodiment one are only that the structure of infrared launcher is different, and infrared touch panel reception structure is identical, is not repeating here.
In the present embodiment, infrared launcher comprises rectangular circuit board housing 100, two infrared transmitting tube (i.e. the first infrared transmitting tube 210 and the second infrared transmitting tube 220), two transparency mirror groups (i.e. the first transparency mirror group 230 and the second transparency mirror group 240).Wherein rectangular circuit board housing 100 is for the formation of crisscross infrared signal, and this rectangular circuit board housing 100 is arranged at the front side of infrared touch panel; Two infrared transmitting tubes are for launching infrared signal, and two infrared transmitting tubes arrange the end of the adjacent dual-side of rectangular circuit board housing 100 respectively; Two transparency mirror groups and two infrared transmitting tube one_to_one corresponding, be arranged on the side at each self-corresponding infrared transmitting tube place respectively, for the infrared signal that its corresponding infrared transmitting tube of transmittance and reflectance is launched.Infrared receiver terminal 300 is uniformly distributed on the other dual-side of rectangular circuit board housing 100, and the infrared signal that infrared receiver terminal 300 and two transparency mirror groups reflect (i.e. each transparency mirror 231 and transparency mirror 241) one_to_one corresponding.
Particularly, on wherein two adjacent sides of rectangular circuit board housing 100, correspondence is provided with the first transparency mirror group 230 and the second transparency mirror group 240 respectively, first transparency mirror group 230 is formed a line by multiple length direction along rectangular circuit board housing 100 with being spaced from each other and center transparency mirror 231 on the same line forms, second transparency mirror group 240 is in line by multiple Width along rectangular circuit board housing 100 with being spaced from each other and center transparency mirror 241 on the same line forms, multiple transparency mirror 231, multiple transparency mirror 241 respectively with multiple infrared receiver terminal 300 one_to_one corresponding, namely it is corresponding with it and blaze abroad to be that infrared signal that each transparency mirror (comprising all transparency mirrors 231 and transparency mirror 241) reflects has corresponding optical fiber 310, first infrared transmitting tube 210 is located on one of them end of rectangular circuit board housing 100 side at the first transparency mirror group 230 place, and the infrared signal that the first infrared transmitting tube 210 sends passes the center of each transparency mirror 231 successively and reflexes on the infrared receiver terminal 300 corresponding to each transparency mirror 231 by each transparency mirror 231, second infrared transmitting tube 220 is located on one of them end of rectangular circuit board housing 100 side at the second transparency mirror group 240 place, and the infrared signal that the second infrared transmitting tube 220 sends is passed the center of each transparency mirror 241 successively and reflexed on the infrared receiver terminal 300 corresponding to each transparency mirror 241 by each transparency mirror 241.
In order to the regular infrared signal of an intersection anyhow matrix can be formed, each transparency mirror 231 becomes 45 degree with the Width of rectangular circuit board housing 100, each transparency mirror 241 becomes 135 degree with the Width of rectangular circuit board housing 100, is namely to ensure transparency mirror (comprising all transparency mirrors 231 and transparency mirror 241) its corresponding receiving terminal of all horizontal or vertical sensing.
Be consistent to make the infrared signal intensity that every block transparency mirror 231 reflects and the infrared signal intensity that every block transparency mirror 241 reflects is consistent, particularly, the transmission sequencing of infrared signal that the reflectivity of the transparency mirror 231 of the first transparency mirror group 230 sends along the first infrared transmitting tube 210 increases successively; In like manner, the transmission sequencing of infrared signal that the reflectivity of the transparency mirror 241 of the second transparency mirror group 240 sends along the second infrared transmitting tube 220 increases successively.Such as, when the reflectivity of first piece of transparency mirror 231 (transparency mirror 231 that namely distance the first infrared transmitting tube 210 is nearest) is 1%, the reflectivity of next block transparency mirror 231 is 1.01%, the reflectivity of next block transparency mirror 231 is 1.02% again, thus make to be ensured uniform intensity by the infrared signal that transparency mirror 231 reflects, the ratio adjustment reflecting rate of current incident infrared signal finally can be accounted for according to the intensity of the infrared signal of transparency mirror 231.In like manner, the reflectivity set-up mode of transparency mirror 241 is similar to the reflectivity set-up mode of transparency mirror 231, is no longer described further at this.
Embodiment three
As shown in Figure 1, Figure 4 and Figure 5, embodiment three and embodiment one are only that the structure of infrared launcher is different, and infrared touch panel reception structure is identical, is not repeating here.
In the present embodiment, infrared launcher comprises rectangular circuit board housing 100, infrared transmitting tube 250, first transparency mirror group 260, second transparency mirror group 270.Wherein: rectangular circuit board housing 100, for the formation of crisscross infrared signal, this rectangular circuit board housing is arranged at the front side of infrared touch panel; Infrared transmitting tube 250 is for launching infrared signal, and infrared transmitting tube 250 is arranged at the end of a rectangular circuit board housing 100 wherein side; The infrared signal that first transparency mirror group 260 is launched for transmittance and reflectance infrared transmitting tube 250, the first transparency mirror group 260 is arranged on the side at infrared transmitting tube 250 place; Transmit catoptron 262 for receiving and reflect the infrared signal of the first transparency mirror group 260 transmission, transmit the other end that catoptron 262 is arranged at described side; Second transparency mirror group 270 is disposed adjacent with described side, transmits the infrared signal of catoptron 262 reflection for transmittance and reflectance; Infrared receiver terminal 300 is uniformly distributed on the other dual-side (being namely two other side except the first transparency mirror group 260 and the second transparency mirror group 270 place side) of rectangular circuit board housing, and infrared signal (i.e. each transparency mirror 261 and the transparency mirror 271) one_to_one corresponding that infrared receiver terminal 300 and the first transparency mirror group 260, second transparency mirror group 270 reflect.
Illustrate for Fig. 4, on wherein two adjacent sides of rectangular circuit board housing 100, correspondence is provided with the first transparency mirror group 260 and the second transparency mirror group 270 respectively, and the side that the two other of rectangular circuit board housing 100 is adjacent all arranges multiple infrared receiver terminal; First transparency mirror group 260 is formed a line by multiple length direction along rectangular circuit board housing 100 with being spaced from each other and center transparency mirror 261 on the same line forms, second transparency mirror group 270 is in line by multiple Width along rectangular circuit board housing 100 with being spaced from each other and center transparency mirror 271 on the same line forms, multiple transparency mirror 261, multiple transparency mirror 271 respectively with multiple infrared receiver terminal 300 one_to_one corresponding; Infrared transmitting tube 250 is located on one of them end of the circuit board housing side at the first transparency mirror group 260 place, and the infrared signal that infrared transmitting tube 250 sends passes the center of each transparency mirror 261 successively and reflexes on the infrared receiver terminal 300 corresponding to each transparency mirror 261 by each transparency mirror 261; Transmit the connection bit place that rectangular circuit board housing 100 side at the first transparency mirror group 260 and the second transparency mirror group 270 place is located at by catoptron 262, and the infrared signal that infrared transmitting tube 250 sends also reflexes in the second transparency mirror group 270 by transmitting catoptron 262 through behind the center of each transparency mirror 261 successively, then passes the center of each transparency mirror 271 successively and reflexed on the infrared receiver terminal 300 corresponding to each transparency mirror 271 by each transparency mirror 271.
In order to the regular infrared signal of an intersection anyhow matrix can be formed, each transparency mirror 261 becomes 45 degree with the Width of rectangular circuit board housing 100, each transparency mirror 271 becomes 135 degree with the Width of rectangular circuit board housing 100, is namely each transparency mirror 261 and its corresponding receiving terminal of all horizontal or vertical sensing of each transparency mirror 271.
Be consistent to make the infrared signal intensity that every block transparency mirror 261 reflects and the infrared signal intensity that every block transparency mirror 271 reflects is consistent, particularly, the transmission sequencing of infrared signal that the reflectivity of the transparency mirror 261 of the first transparency mirror group 260 sends along infrared transmitting tube 250 increases successively; The reflectivity of the transparency mirror 271 of the second transparency mirror group 270 increases successively along the transmission sequencing transmitting the infrared signal that catoptron 262 reflects, the reflectivity of each transparency mirror 271 is all greater than the reflectivity transmitting catoptron 262 simultaneously, and the reflectivity transmitting catoptron 262 is all greater than the reflectivity of each transparency mirror 261.
As can be seen from embodiment two and embodiment three, the optical fiber installed by infrared receiver terminal place after being launched by the infrared signal that infrared transmitting tube is launched by transparency mirror group is propagated, can only use one (embodiment three) or two infrared transmitting tubes (embodiment two) that crisscross infrared signal can be formed, infrared receiving device being arranged convenient, the resolution of infrared touch panel can be improved by placing more transparency mirror.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (7)
1. infrared touch panel receives structure, and it is characterized in that, it comprises:
Infrared receiver terminal, for the optical fiber of fixed reception infrared signal;
Optical fiber, for receiving the infrared signal that infrared launcher sends, one end of described optical fiber is fixedly installed on infrared receiver terminal;
Infrared imaging device, for receiving the infrared signal of optical fiber transmission and forming corresponding pixel according to infrared signal;
Image processing module, is electrically connected with described infrared imaging device, for described pixel being changed into the coordinate information of infrared touch panel touch area;
Described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Infrared transmitting tube, for launching infrared signal, described infrared transmitting tube is uniformly distributed on the adjacent dual-side of rectangular circuit board housing;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and infrared receiver terminal and infrared transmitting tube are oppositely arranged one by one;
Wherein said infrared receiver terminal is provided with an optical fiber mounting hole, optical fiber is fixedly installed in this optical fiber mounting hole, and be provided with an infrared diffusion tip in described optical fiber mounting hole, described infrared diffusion tip is connected with the end of optical fiber.
2. infrared touch panel receives structure, and it is characterized in that, it comprises:
Infrared receiver terminal, for the optical fiber of fixed reception infrared signal;
Optical fiber, for receiving the infrared signal that infrared launcher sends, one end of described optical fiber is fixedly installed on infrared receiver terminal;
Infrared imaging device, for receiving the infrared signal of optical fiber transmission and forming corresponding pixel according to infrared signal;
Image processing module, is electrically connected with described infrared imaging device, for described pixel being changed into the coordinate information of infrared touch panel touch area;
Described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Two infrared transmitting tubes, for launching infrared signal, described two infrared transmitting tubes arrange the end of the adjacent dual-side of rectangular circuit board housing respectively;
Two transparency mirror groups, with described two infrared transmitting tube one_to_one corresponding, are arranged on the side at each self-corresponding infrared transmitting tube place respectively, for the infrared signal that its corresponding infrared transmitting tube of transmittance and reflectance is launched;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and each transparency mirror one_to_one corresponding of infrared receiver terminal and two transparency mirror groups;
Wherein said infrared receiver terminal is provided with an optical fiber mounting hole, optical fiber is fixedly installed in this optical fiber mounting hole, and be provided with an infrared diffusion tip in described optical fiber mounting hole, described infrared diffusion tip is connected with the end of optical fiber.
3. infrared touch panel as claimed in claim 2 receives structure, and it is characterized in that, the reflectivity of described two transparency mirror groups all increases successively along the optical path direction of the photoemissive infrared signal of the infrared emission of its correspondence.
4. infrared touch panel receives structure, and it is characterized in that, it comprises:
Infrared receiver terminal, for the optical fiber of fixed reception infrared signal;
Optical fiber, for receiving the infrared signal that infrared launcher sends, one end of described optical fiber is fixedly installed on infrared receiver terminal;
Infrared imaging device, for receiving the infrared signal of optical fiber transmission and forming corresponding pixel according to infrared signal;
Image processing module, is electrically connected with described infrared imaging device, for described pixel being changed into the coordinate information of infrared touch panel touch area;
Described infrared launcher comprises:
Rectangular circuit board housing, for the formation of crisscross infrared signal, described rectangular circuit board housing is arranged at the front side of infrared touch panel;
Infrared transmitting tube, for launching infrared signal, described infrared transmitting tube is arranged at the end of a rectangular circuit board housing wherein side;
First transparency mirror group, for the infrared signal that transmittance and reflectance infrared transmitting tube is launched, described first transparency mirror group is arranged on the side at infrared transmitting tube place;
Transmit catoptron, for receiving and reflect the infrared signal of the first transparency mirror group transmission, described transmission catoptron is arranged at the other end of described side;
Second transparency mirror group, is disposed adjacent with described side, for transmitting the infrared signal of catoptron reflection described in transmittance and reflectance;
Described infrared receiver terminal is uniformly distributed on the other dual-side of rectangular circuit board housing, and each transparency mirror one_to_one corresponding of each transparency mirror of infrared receiver terminal and the first transparency mirror group, the second transparency mirror group;
Wherein said infrared receiver terminal is provided with an optical fiber mounting hole, optical fiber is fixedly installed in this optical fiber mounting hole, and be provided with an infrared diffusion tip in described optical fiber mounting hole, described infrared diffusion tip is connected with the end of optical fiber.
5. infrared touch panel as claimed in claim 4 receives structure, it is characterized in that, the reflectivity of described first transparency mirror group increases successively along the optical path direction of the photoemissive infrared signal of infrared emission, and the reflectivity of described second transparency mirror group to increase and the reflectivity of the second transparency mirror group is all greater than the reflectivity transmitting catoptron successively along the optical path direction transmitting the infrared signal that catoptron is launched.
6. the infrared touch panel as described in any one of claim 1 to 5 receives structure, and it is characterized in that, the quantity of the pixel of described infrared imaging device is at least four times in number of fibers.
7. the infrared touch panel as described in any one of claim 1 to 5 receives structure, it is characterized in that, described infrared touch panel receives the cover plate that structure comprises a fixing infrared imaging device further, described cover plate is provided with the fixed orifice of the fixed fiber other end, and the infrared signal transmitted by optical fiber is transmitted on infrared imaging device through this fixed orifice.
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| CN201210376102.4A CN102880359B (en) | 2012-09-29 | 2012-09-29 | Infrared touch screen receiving structure |
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| CN104331157A (en) * | 2014-10-31 | 2015-02-04 | 武坤 | Photoconduction-based hand gesture recognition device |
| CN105843457B (en) * | 2016-03-23 | 2018-12-21 | 南京铁道职业技术学院 | Digital radio positioning electronic white board |
| CN105892761B (en) * | 2016-03-28 | 2019-01-01 | 南京铁道职业技术学院 | Enhance the digital radio positioning electronic white board of fixing |
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| CN101957686A (en) * | 2009-07-16 | 2011-01-26 | 张海宏 | Leading-in transparent infrared window multiple touch screen device and method |
| CN201600675U (en) * | 2010-03-19 | 2010-10-06 | 北京汇冠新技术股份有限公司 | Touch screen and touch system |
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| CN102880359A (en) | 2013-01-16 |
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Address after: Building 2, building 1, No. 118, Liguang new industrial zone, Liguang community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Star touch technology (Shenzhen) Co., Ltd Address before: Baoan District Shenzhen City, Guangdong province 518110 streets Guanlan Liguang community Li New Light Industrial Zone No. 118 Building 1, building 2 Patentee before: TOP TOUCH ELECTRONICS Co.,Ltd. |