CN103970368A - Laser scanning touch screen and software thereof - Google Patents
Laser scanning touch screen and software thereof Download PDFInfo
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- CN103970368A CN103970368A CN201410020235.7A CN201410020235A CN103970368A CN 103970368 A CN103970368 A CN 103970368A CN 201410020235 A CN201410020235 A CN 201410020235A CN 103970368 A CN103970368 A CN 103970368A
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Abstract
The invention discloses a laser scanning touch screen and software of the laser scanning touch screen, and particularly relates to the field of touch screens. The laser scanning touch screen comprises a touch screen signal processing system and a touch panel. The touch screen signal processing system is connected with a laser distance measuring system. When the touch panel is touched by a touch piece, lasers emitted by a laser device irradiate at least one light sensor of a light sensor set after passing through an angle optical splitter; an optical signal receiving and processing module judges the distance between the touch panel and the touch piece; the angle between the touch panel and the touch piece is confirmed through the angle optical splitter; the position of a touch point is recognized according to the distance information and the angle information of the touch piece. The software is scanned through the touch point, and the scanning outline is drawn by writing in the angle and the scanning distance corresponding to the angle; when an object exists in the scanned scanning outline, the object is regarded as the touch piece, and a touch response is made in the corresponding position.
Description
Technical field
The present invention relates to computer realm, be specifically related to touch-screen field.
Background technology
Touch-screen has become a kind of important human-computer interaction device.Be widely used on the equipment such as mobile phone, computer, panel computer, advertisement machine.
Existing touch-screen is mainly infrared touch panel, electric resistance touch screen, capacitance touch screen etc.There is complex structure, touch the problems such as area is limited, installation is inconvenient in these touch-screens.
Summary of the invention
The object of the invention is to, a kind of laser scanning touch-screen is provided, and a software kit, to address the above problem.
Technical matters solved by the invention can realize by the following technical solutions:
Laser scanning touch-screen, comprises a touch screen signal disposal system and a touch pad, it is characterized in that, described touch screen signal disposal system connects a laser distance measuring system;
Described laser distance measuring system comprises a laser instrument, and described laser instrument adopts a word laser instrument, and the irradiation light of a described word laser instrument is parallel with described touch pad face;
Described laser distance measuring system also comprises a laser signal Receiver, and described laser signal Receiver is provided with the light activated element group of being arranged and being formed by least two light activated elements, is also provided with an angle optical splitter; Described angle optical splitter is positioned at described light activated element group the place ahead; Extraneous light is irradiated on the light activated element of described light activated element group after described angle optical splitter; Described angle optical splitter is one by light source place, the place ahead angle optical device associated with light intensity position, rear,, the different angles of described angle optical splitter the place ahead light source, react for the different light intensity on light activated element described in each of light activated element group described in described angle optical splitter rear;
Described laser distance measuring system also comprises a data processing circuit system, comprises a light signal receiving processing module, and described light signal receiving processing module connects respectively at least two described light activated elements in described light activated element group; Receive and process the light signal information that at least two described light activated elements receive;
When having the part of touch to touch described touch pad, be subject to the Ear Mucosa Treated by He Ne Laser Irradiation that described laser instrument sends, form a reflection source, the light of described reflection source reflection is irradiated at least one described light activated element of described light activated element group after described angle optical splitter;
Described light activated element sends signal to light signal receiving processing module, and then judges the distance of described reflection source, judges the distance that touches part;
By described angle optical splitter the place ahead light-source angle, with light intensity corresponding relation on light activated element described in each of rear, determine described reflection source, touch the angle of part;
Also comprise a microprocessor system, described microprocessor system connects described light signal receiving processing module, according to the range information that touches part, and angle information, determine the two-dimensional coordinate of described touch part on described touch pad, and then determine the position of touch point, complete touch point location recognition.
Described laser distance measuring system is the laser distance measuring system of the types such as a pulse type laser range measurement system, phase-shift laser range-finder, triangle locate mode laser distance measuring system.The phase-shift laser range-finder that preferably utilizes phase method to find range.Described data processing circuit system also comprises a phase signal generation module, and described phase signal generation module connects described laser instrument.
There is the advantages such as simple in structure, the setting of touch area is free, easy for installation, sensitivity is high.
Described angle optical splitter can be an imaging lens, by described imaging lens, the picture of described light source is presented in described light activated element group, on light activated element described at least one of described light activated element group, forms the hot spot that a light intensity is stronger.By image-forming principle, reflection source angle is completed associated with the different light intensity on light activated element described in each.Imaging lens can be convex lens or an imaging lens group.
Described angle optical splitter can also be a light-filtering channels group, and described light-filtering channels group comprises at least two light-filtering channels, and described light-filtering channels is provided with a light inlet and a light-emitting window;
The light inlet of at least two light-filtering channels is different with the angle of light-emitting window line, for receiving the light of different angles.The extended line of the light inlet of one light-filtering channels and the line of light-emitting window, during through reflection source (touch part), the light signal receiving on light activated element corresponding to light-filtering channels rear is strong, a little less than the light signal receiving, does not even have on light activated element corresponding to incongruent other light-filtering channels of geometric relationship.And then reflection source angle is completed associated with the different light intensity on light activated element described in each.
Described light signal receiving processing module is provided with one scan circuit, by described sweep circuit, connects respectively light activated element described in each in described light activated element group, receives respectively the electric signal that light activated element produces described in each.So that system is carried out signal processing.
The arrangement mode of the light activated element in described light activated element group is linear array.The linear place plane being arranged in and described touch pad place plane parallel.So that the light of the reflection source forming on reception touch pad.
Described light activated element can be arranged in a straight line structure or camber line structure.
Described light activated element can adopt the light activated elements such as phototriode, photodiode, photosensitive field effect transistor.
Described laser distance measuring system is preferably arranged on described touch pad bight.
Can described laser distance measuring system be set respectively at two diagonal angles of described touch pad.So that be applicable to large scale touch-screen.
Can described laser distance measuring system be set respectively at two adjacent angles of described touch pad.So that realize multiple point touching.
The light-emitting window of the light-filtering channels of described light-filtering channels group has a light activated element, i.e. the corresponding light activated element of light-filtering channels, and the light-sensitive surface of described light activated element props up described light-emitting window, or the light-sensitive surface of described light activated element is embedded in described light-emitting window.To reduce mutual signal, disturb.
Or the light-emitting window at described light-filtering channels has at least two light activated elements, so that strengthen the electrical signal intensity producing.
Operation has a touch point scanning software that is applicable to laser scanning touch-screen in described microprocessor system.
First, in described microprocessor system, first write scanning profile.Can be by read-in angle and scanning distance corresponding to angle, thereby depict scanning profile.While having object in scanning described scanning profile, this object is considered as touching part, and produces touch-responsive at correspondence position.
Described microprocessor system does not respond for the object that exceeds described scanning profile,, in an angle, when the object distance scanning is greater than the distance setting, does not respond.
The mode that writes scanning profile can be:
(1) laser scanning touch-screen is being installed, and is being started after system, first described touch point scanning software carries out environmental scanning, periphery is produced to the periphery object distance of blocking to laser beam and scan and record.Periphery contour of object in the setting sweep limit scanning is as described scanning profile.Periphery object is likely touch pad frame, wall etc.Described setting sweep limit can be to set scanning coverage, sets the mode of scanning coverage, can be the data beyond deletion setpoint distance.Can also be that sensitivity by setting laser range measurement system realizes.
After having scanned, periphery object space is recorded and preserved, and then complete described scanning profile and write work.This can be that periphery object place distance and angle are recorded and preserved.
After completing environmental scanning, enter work scanning mode, scanning in same angle, while having than the nearer object of periphery object, this object is considered as touching part, and produces touch-responsive at correspondence position.
By above-mentioned technology, can make whole installation process simpler.
(2) mode that writes scanning profile can also be, imports described scanning profile data, imports each angle and the scanning distance corresponding with this angle, thereby depicts scanning profile.
Scan mode can be:
In scanning process, described microprocessor system receives respectively the electric signal that each light activated element produces, scanning described touch part, and at least two described light activated elements receive light signal, and the distance value that described microprocessor system calculates according to light activated element described in each differs while surpassing a setting value, and peek is worth little distance value.That is, described microprocessor system is approved the numerical value of the light activated element that scanning distance is nearer.This design, helps avoid touch pad object in addition scanning result is caused to interference.
And the distance value that described microprocessor system calculates according to light activated element described in each differs while surpassing a setting value, and peek is worth little distance value.That is, described microprocessor system is approved the numerical value of the light activated element that scanning distance is nearer.This design, helps avoid touch pad object in addition scanning result is caused to interference.
Or, in scanning process, described microprocessor system receives respectively the electric signal that each light activated element produces, scanning described touch part, and at least two described light activated elements receive light signal, described microprocessor system, according at least two described light activated elements, is determined the corresponding angle value of each light activated element, the corresponding light activated element of intermediate value that described microprocessor system is got all angles value.
Can be directly can be by microprocessor system effectively described in each of electric signal of identification in light activated element by continuously arranged several generations, described light activated element in the middle of coming is as preferred light activated element, the angle value of described microprocessor system using angle value corresponding to this light activated element as described touch part.
The above-mentioned preferred version for angle recognition, can suitably eliminate because focus on the inaccurate problem that causes error.
Scanning while touching part described in one, receive from described touch part reflection ray, and signal is by the described light activated element of described microprocessor system identification, is considered as efficient light photosensitive elements; Described microprocessor system is carried out priority scan to the described light activated element of described efficient light photosensitive elements periphery.
Can be, described microprocessor system be to described efficient light photosensitive elements both sides, and every side accounts for total light activated element quantity 1/5th and scans with interior light activated element, forms a preferential light activated element scanning area, and other light activated elements no longer scan.To save the energy, and improve degree of accuracy.
In described microprocessor system, described preferential light activated element scanning area is scanned, but while scanning less than touch part, again whole described light activated elements are scanned.
In cycle sweep time when to whole light activated element scanning, be greater than cycle sweep time when described preferential light activated element scanning area is scanned.So that when guaranteeing sweep velocity, guarantee quality of scanning.
When to whole light activated element scanning, the sweep time to single light activated element, be less than sweep time when described preferential light activated element scanning area is scanned.So that accurately scan when having the part of touch.
Accompanying drawing explanation
Fig. 1 is a kind of one-piece construction schematic diagram of laser scanning touch-screen;
Fig. 2 is touch screen signal disposal system structural principle schematic diagram;
Fig. 3 a, b are respectively angle optical splitter annexation principle schematic;
Fig. 4 software flow schematic diagram.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to Fig. 1, Fig. 2, Fig. 3, laser scanning touch-screen, comprises a touch screen signal disposal system 1 and a touch pad 2.Touch screen signal disposal system 1 comprises a laser distance measuring system 3, and laser distance measuring system 3 is a phase-shift laser range-finder 3.Laser distance measuring system 3 can be also the laser distance measuring system of the types such as a pulse type laser range measurement system or triangle locate mode laser distance measuring system.Laser distance measuring system 3 comprises a laser instrument 31, and laser instrument 31 adopts a word laser instrument, and the irradiation light of a word laser instrument is parallel with 2 of touch pads.The light that one word laser instrument is got, is radiated in plane in front and presents word line, utilizes a word laser illumination to go out the feature of light, and a word laser instrument is often used in the calibration of buildings collimation.
Laser distance measuring system 3 also comprises a laser signal Receiver 32, and laser signal Receiver 32 is provided with the light activated element group 4 of being arranged and being formed by least two light activated elements 41, is also provided with an angle optical splitter 5; Angle optical splitter 5 is positioned at light activated element group 4 the place aheads; Extraneous light is irradiated on the light activated element 41 of light activated element group 4 after angle optical splitter 5; Angle optical splitter 5 is one by light source place, the place ahead angle optical device associated with light intensity position, rear, that is, the different angles of angle optical splitter 5 the place ahead light sources, react for the different light intensity on each light activated element 41 in angle optical splitter 5 rear light activated element groups 4.Laser distance measuring system 3 also comprises a data processing circuit system 33, and data processing circuit system 33 comprises a phase signal generation module, phase signal generation module connecting laser 31; Also comprise a light signal receiving processing module, at least two light activated element 41(that light signal receiving processing module connects respectively in light activated element group 4 can connect by coding circuit); Receive and process the light signal information that at least two light activated elements 41 receive.When having the part of touch to touch touch pad 2, be subject to the Ear Mucosa Treated by He Ne Laser Irradiation that laser instrument 31 sends, form a reflection source, the light of reflection source reflection is irradiated at least one light activated element 41 of light activated element group 4 after over-angle optical splitter 5.Light activated element 41 sends signal to light signal receiving processing module, and then judges the distance of reflection source, judges the distance that touches part.By angle optical splitter 5 the place ahead light-source angles, with light intensity corresponding relation on each light activated element 41 at rear, determine reflection source, touch the angle of part.
Touch screen signal disposal system 1 also comprises a microprocessor system 6, microprocessor system 6 connects light signal receiving processing module, according to the range information that touches part, and angle information, determine and touch the two-dimensional coordinate of part on touch pad 2, and then determine the position of touch point, complete touch point location recognition.
With reference to a in Fig. 3, angle optical splitter 5 can be an imaging lens, by imaging lens, the picture of light source is presented in light activated element group 4, at least one light activated element 41 of light activated element group 4, forms the hot spot that a light intensity is stronger.By image-forming principle, reflection source angle is completed associated with the different light intensity on each light activated element 41.Imaging lens can be convex lens or an imaging lens group.
With reference to b in Fig. 3, angle optical splitter 5 can also be a light-filtering channels group, and light-filtering channels group comprises at least two light-filtering channels, and light-filtering channels is provided with a light inlet and a light-emitting window; The light inlet of at least two light-filtering channels is different with the angle of light-emitting window line, for receiving the light of different angles.The extended line of the light inlet of one light-filtering channels and the line of light-emitting window, during through reflection source (touch part), the light signal receiving on light activated element 41 corresponding to light-filtering channels rear is strong, a little less than the light signal receiving on light activated element 41 corresponding to incongruent other light-filtering channels of geometric relationship, even do not have.And then reflection source angle is completed associated with the different light intensity on each light activated element 41.
Light signal receiving processing module is provided with one scan circuit, by sweep circuit, connects respectively each light activated element 41 in light activated element group 4, receives respectively the electric signal that each light activated element 41 produces.Can be that timesharing receives, or receive respectively after encoding respectively.So that system is carried out signal processing.
The arrangement mode of the light activated element 41 in light activated element group 4 is linear array.The linear place plane being arranged in and touch pad 2 place plane parallel.So that receive the light of the reflection source forming on touch pad 2.Light activated element 41 can be arranged in a straight line structure or camber line structure.Light activated element 41 can adopt the light activated elements 41 such as phototriode, photodiode, photosensitive field effect transistor.Laser distance measuring system 3 is preferably arranged on touch pad 2 bights.Can laser distance measuring system 3 be set respectively at two diagonal angles of touch pad 2.So that be applicable to large scale touch-screen.Can laser distance measuring system 3 be set respectively at two adjacent angles of touch pad 2.So that realize multiple point touching.
The light-emitting window of the light-filtering channels of light-filtering channels group has a light activated element 41, i.e. the corresponding light activated element 41 of light-filtering channels, and the light-sensitive surface of light activated element 41 props up light-emitting window, or the light-sensitive surface of light activated element 41 is embedded in light-emitting window.To reduce mutual signal, disturb.Or the light-emitting window at light-filtering channels has at least two light activated elements 41, so that strengthen the electrical signal intensity producing.
With reference to Fig. 4, the interior operation of microprocessor system 6 has a touch point scanning software.
First, in microprocessor system 6, first write scanning profile.Can be by read-in angle and scanning distance corresponding to angle, thereby depict scanning profile.While having object in scanning scanning profile, this object is considered as touching part, and produces touch-responsive at correspondence position.
Microprocessor system 6 does not respond for the object that exceeds scanning profile,, in a certain angle, when the object distance scanning is greater than the distance setting, does not respond.
The mode that writes scanning profile can be:
(1) laser scanning touch-screen is being installed, and is being started after system, first touch point scanning software carries out environmental scanning, periphery is produced to the periphery object distance of blocking to laser beam and scan and record.Periphery contour of object in the setting sweep limit scanning is as described scanning profile.Periphery object is likely touch pad frame, wall etc.Described setting sweep limit can be to set scanning coverage, sets the mode of scanning coverage, can be the data beyond deletion setpoint distance.Can also be that sensitivity by setting laser range measurement system realizes.
After having scanned, periphery object space is recorded and preserved, and then complete scanning profile and write work.This can be that periphery object place distance and angle are recorded and preserved.
After completing environmental scanning, enter work scanning mode, scanning in same angle, while having than the nearer object of periphery object, this object is considered as touching part, and produces touch-responsive at correspondence position.
By above-mentioned technology, can make whole installation process simpler.
(2) mode that writes scanning profile can also be, imports scanning profile data, imports each angle and the scanning distance corresponding with this angle, thereby depicts scanning profile.
Scan mode can be:
In scanning process, microprocessor system 6 receives respectively the electric signal that each light activated element 41 produces, scanning touch part, and at least two light activated elements 41 receive light signal, and the distance value that microprocessor system 6 calculates according to each light activated element 41 differs while surpassing a setting value, and peek is worth little distance value.That is, microprocessor system 6 is approved the numerical value of the light activated element 41 that scanning distances are nearer.This design, helps avoid touch pad 2 object in addition scanning result is caused to interference.
And the distance value that microprocessor system 6 calculates according to each light activated element 41 differs while surpassing a setting value, and peek is worth little distance value.That is, microprocessor system 6 is approved the numerical value of the light activated element 41 that scanning distances are nearer.This design, helps avoid touch pad 2 object in addition scanning result is caused to interference.
Or, in scanning process, microprocessor system 6 receives respectively the electric signal that each light activated element 41 produces, scanning touch part, and at least two light activated elements 41 receive light signal, microprocessor system 6, according at least two light activated elements 41, is determined the corresponding angle value of each light activated element 41, and microprocessor system 6 is got the corresponding light activated element 41 of intermediate value of all angles value.
Can be directly can be by each light activated element 41 of the electric signal of microprocessor system 6 effective identifications by continuously arranged several generations, light activated element 41 in the middle of coming is as preferred light activated element 41, and microprocessor system 6 is using the angle value of these light activated element 41 correspondences as the angle value that touches part.
The above-mentioned preferred version for angle recognition, can suitably eliminate because focus on the inaccurate problem that causes error.
When scanning a touch part, receive from touching part reflection ray, and signal is by the light activated element 41 of microprocessor system 6 identifications, is considered as efficient light photosensitive elements 41; The light activated element 41 of 6 pairs of efficient light photosensitive elements 41 peripheries of microprocessor system carries out priority scan.
Can be, 6 pairs of efficient light photosensitive elements 41 both sides of microprocessor system, every side accounts for total light activated element 41 quantity 1/5th and scans with interior light activated element 41, forms preferential light activated element 41 scanning areas, and other light activated elements 41 no longer scan.To save the energy, and improve degree of accuracy.
In 6 pairs of preferential light activated element 41 scanning areas of microprocessor system, scan, but while scanning less than touch part, again whole light activated elements 41 are scanned.
In cycle sweep time when to whole light activated element 41 scanning, be greater than cycle sweep time when preferential light activated element 41 scanning areas are scanned.So that when guaranteeing sweep velocity, guarantee quality of scanning.
When to whole light activated element 41 scanning, the sweep time to single light activated element 41, be less than sweep time when preferential light activated element 41 scanning areas are scanned.So that accurately scan when having the part of touch.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. laser scanning touch-screen, comprises a touch screen signal disposal system and a touch pad, it is characterized in that, described touch screen signal disposal system connects a laser distance measuring system;
Described laser distance measuring system comprises a laser instrument, and described laser instrument adopts a word laser instrument, and the irradiation light of a described word laser instrument is parallel with described touch pad face;
Described laser distance measuring system also comprises a laser signal Receiver, and described laser signal Receiver is provided with the light activated element group of being arranged and being formed by least two light activated elements, is also provided with an angle optical splitter; Described angle optical splitter is positioned at described light activated element group the place ahead; Extraneous light is irradiated on the light activated element of described light activated element group after described angle optical splitter; Described angle optical splitter is one by light source place, the place ahead angle optical device associated with light intensity position, rear,, the different angles of described angle optical splitter the place ahead light source, react for the different light intensity on light activated element described in each of light activated element group described in described angle optical splitter rear;
Described laser distance measuring system also comprises a data processing circuit system, and described data processing circuit system comprises a phase signal generation module, and described phase signal generation module connects described laser instrument; Also comprise a light signal receiving processing module, described light signal receiving processing module connects respectively at least two described light activated elements in described light activated element group; Receive and process the light signal information that at least two described light activated elements receive;
When having the part of touch to touch described touch pad, be subject to the Ear Mucosa Treated by He Ne Laser Irradiation that described laser instrument sends, form a reflection source, the light of described reflection source reflection is irradiated at least one described light activated element of described light activated element group after described angle optical splitter;
Described light activated element sends signal to light signal receiving processing module, and then judges the distance of described reflection source, judges the distance that touches part;
By described angle optical splitter the place ahead light-source angle, with light intensity corresponding relation on light activated element described in each of rear, determine described reflection source, touch the angle of part;
Also comprise a microprocessor system, described microprocessor system connects described light signal receiving processing module, according to the range information that touches part, and angle information, determine the two-dimensional coordinate of described touch part on described touch pad, and then determine the position of touch point, complete touch point location recognition.
2. laser scanning touch-screen according to claim 1, it is characterized in that: described angle optical splitter is an imaging lens, by described imaging lens, the picture of described light source is presented in described light activated element group, on light activated element described at least one of described light activated element group, forms the hot spot that a light intensity is stronger.
3. laser scanning touch-screen according to claim 1, is characterized in that: described angle optical splitter or a light-filtering channels group, and described light-filtering channels group comprises at least two light-filtering channels, described light-filtering channels is provided with a light inlet and a light-emitting window;
The light inlet of at least two light-filtering channels is different with the angle of light-emitting window line, for receiving the light of different angles.
4. laser scanning touch-screen according to claim 3, it is characterized in that: the light-emitting window of the light-filtering channels of described light-filtering channels group has a light activated element, the i.e. corresponding light activated element of light-filtering channels, the light-sensitive surface of described light activated element props up described light-emitting window, or the light-sensitive surface of described light activated element is embedded in described light-emitting window.
5. the touch point scanning software that is applicable to laser scanning touch-screen, is characterized in that, first, in described microprocessor system, first writes scanning profile; By read-in angle and scanning distance corresponding to angle, thereby depict scanning profile; While having object in scanning described scanning profile, this object is considered as touching part, and produces touch-responsive at correspondence position;
Described microprocessor system does not respond for the object that exceeds described scanning profile,, in an angle, when the object distance scanning is greater than the distance setting, does not respond.
6. touch point according to claim 5 scanning software, is characterized in that: the mode that writes scanning profile is:
Laser scanning touch-screen is being installed, and is being started after system, first described touch point scanning software carries out environmental scanning, periphery is produced to the periphery object distance of blocking to laser beam and scan and record; Periphery contour of object in the setting sweep limit scanning is as described scanning profile;
After having scanned, periphery object space is recorded and preserved, and then complete described scanning profile and write work; This is that periphery object place distance and angle are recorded and preserved;
After completing environmental scanning, enter work scanning mode, scanning in same angle, while having than the nearer object of periphery object, this object is considered as touching part, and produces touch-responsive at correspondence position.
7. touch point according to claim 5 scanning software, it is characterized in that: in scanning process, described microprocessor system receives respectively the electric signal that each light activated element produces, scanning described touch part, and at least two described light activated elements receive light signal, and the distance value that described microprocessor system calculates according to light activated element described in each differs while surpassing a setting value, and peek is worth little distance value; That is, described microprocessor system is approved the numerical value of the light activated element that scanning distance is nearer.
8. touch point according to claim 5 scanning software, it is characterized in that: can be by microprocessor system effectively described in each of electric signal of identification in light activated element by continuously arranged several generations, described light activated element in the middle of coming is as preferred light activated element, the angle value of described microprocessor system using angle value corresponding to this light activated element as described touch part.
9. touch point according to claim 5 scanning software, it is characterized in that: scanning while touching part described in one, receive from described touch part reflection ray, and signal is by the described light activated element of described microprocessor system identification, is considered as efficient light photosensitive elements; Described microprocessor system is carried out priority scan to the described light activated element of described efficient light photosensitive elements periphery.
10. touch point according to claim 9 scanning software, it is characterized in that: described microprocessor system is to described efficient light photosensitive elements both sides, every side accounts for total light activated element quantity 1/5th and scans with interior light activated element, form a preferential light activated element scanning area, other light activated elements no longer scan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410020235.7A CN103970368A (en) | 2013-01-31 | 2014-01-16 | Laser scanning touch screen and software thereof |
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| CN201310038929.9 | 2013-01-31 | ||
| CN201310038929 | 2013-01-31 | ||
| CN201310053614 | 2013-02-19 | ||
| CN201310053614.1 | 2013-02-19 | ||
| CN201410020235.7A CN103970368A (en) | 2013-01-31 | 2014-01-16 | Laser scanning touch screen and software thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105912172A (en) * | 2016-04-01 | 2016-08-31 | 娄恩华 | Multi-point touch device for laser scanning |
| CN109240535A (en) * | 2018-08-14 | 2019-01-18 | 成都吉锐时代触摸技术有限公司 | A kind of touch detecting method based on laser signal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568452A (en) * | 2001-10-09 | 2005-01-19 | 皇家飞利浦电子股份有限公司 | Device with touch sensible function |
| CN101630213A (en) * | 2008-08-22 | 2010-01-20 | 李兴文 | Optical touch screen, optical touch screen light source and touch pen |
| CN102236474A (en) * | 2010-04-27 | 2011-11-09 | 太瀚科技股份有限公司 | Optical touch device |
| CN202110519U (en) * | 2011-06-07 | 2012-01-11 | 上海科斗电子科技有限公司 | Touch screen with optical signal receiving terminal at edge side of touch pad |
| JP2012173029A (en) * | 2011-02-18 | 2012-09-10 | Seiko Epson Corp | Optical position detection apparatus and display system with input function |
-
2014
- 2014-01-16 CN CN201410020235.7A patent/CN103970368A/en active Pending
- 2014-01-27 CN CN201420054410.XU patent/CN203930751U/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568452A (en) * | 2001-10-09 | 2005-01-19 | 皇家飞利浦电子股份有限公司 | Device with touch sensible function |
| CN101630213A (en) * | 2008-08-22 | 2010-01-20 | 李兴文 | Optical touch screen, optical touch screen light source and touch pen |
| CN102236474A (en) * | 2010-04-27 | 2011-11-09 | 太瀚科技股份有限公司 | Optical touch device |
| JP2012173029A (en) * | 2011-02-18 | 2012-09-10 | Seiko Epson Corp | Optical position detection apparatus and display system with input function |
| CN202110519U (en) * | 2011-06-07 | 2012-01-11 | 上海科斗电子科技有限公司 | Touch screen with optical signal receiving terminal at edge side of touch pad |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105912172A (en) * | 2016-04-01 | 2016-08-31 | 娄恩华 | Multi-point touch device for laser scanning |
| CN109240535A (en) * | 2018-08-14 | 2019-01-18 | 成都吉锐时代触摸技术有限公司 | A kind of touch detecting method based on laser signal |
| CN109240535B (en) * | 2018-08-14 | 2022-01-18 | 成都吉锐时代触摸技术有限公司 | Touch detection method based on laser signals |
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