CN101866246A - Multipoint touch type optical input device - Google Patents
Multipoint touch type optical input device Download PDFInfo
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- CN101866246A CN101866246A CN200910134501A CN200910134501A CN101866246A CN 101866246 A CN101866246 A CN 101866246A CN 200910134501 A CN200910134501 A CN 200910134501A CN 200910134501 A CN200910134501 A CN 200910134501A CN 101866246 A CN101866246 A CN 101866246A
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Abstract
The invention relates to a multipoint touch type optical input device which is used for forming a touch area on a physical plane. The multipoint touch type optical input device comprises a first optical sensing module and a second optical sensing module, wherein the first optical sensing module is provided with a first laser source and a first image extraction device, the first laser source generates a first light ray, and the first image extraction device extracts first reflected light generated in such a way that the first light ray is reflected by one or more target objects on the touch area; the second optical sensing module is provided with a second laser source and a second image extraction device, the second laser source generates a second light ray, and the second image extraction device extracts second reflected light generated in such a way that the second light ray is reflected by one or more target objects on the touch area. The first optical sensing module and the second optical sensing module obtain the optical information of the coordinate position information representing the one or more target objects through the first reflected light and the second reflected light. The invention has the advantages of precisely sensing the operational orders of a user, simplifying the framework, and reducing the volume and the cost, and can be applied to a large size.
Description
Technical field
The present invention relates to a kind of input media, relate in particular to a kind of multipoint touch type optical input device.
Background technology
In recent years, Touch Screen has become the very important man-machine interface of consumption electronic products, and little by little replaces keyboard and mouse function, makes keyboard and mouse become accessory and inessential product.The evolution of Touch Screen is from single-point touch technology (single-touch) such as in the past resistance-type, condenser types, to multi-point touch technology (multi-touch) such as now projected capacitive, optical profile type, digital photography formulas.The single-point touch technology often is merely able to allow the user click button or analog mouse function, can't diversification with regard to application facet.And multi-point touch technology now, can detect the index contact more than 2 simultaneously, to reach the unapproachable function of single-point touch technology in the past, the for example rotation of image, convergent-divergent or the like, therefore compared to traditional single-point type Touch Screen (single-touch panel), multipoint mode Touch Screen (multi-touch panel) can provide how interesting and man machine operation interface easily.
Touch Screen of a great variety, different classes of Touch Screen technology respectively has its relative merits.The normal single-point touch Screen Technology of using of electronic product approximately can be divided at present: resistance-type, condenser type, surface acoustic wave and optical profile type or the like.The Touch Screen of resistance-type can be pushed the variation that the resistance film on the screen has a resistance with any target objects such as finger or pens, detects the XY axial coordinate whereby.The Touch Screen of resistance-type has low price, waterproof, resistance to soiling is good and advantage such as scratch resistance, but that shortcoming is that penetrability is not good, precision reaches serviceable life inadequately is lower.The Touch Screen of surface capacitance type can't be operated with target objects arbitrarily, must use conductive target objects, for example people's finger.When people's finger touches during to panel surface, this moment, people's finger can be drawn the electric current of trace, caused the variation of capacitance, and the ratio that controller then can be drawn according to electric current is to calculate the XY axial coordinate.The surface capacitance type touch technology is as long as slightly touch and can react, and the electric resistance touch-control technology then must apply bigger pressing force, so the surface capacitance type touch technology has sensitive advantage.The optical touch control technology utilizes light source to receive the blocking principle, with being covered with light source and receiver in the panel scope and forming matrix, when light is interdicted, can obtain the position of the receiver that can't receive signal, and then definite XY axial coordinate.The optical touch control technology have high transmission rate and can with any target objects operate and tool by long characteristic of life-span.
Present most application is still based on the single-point type touch technology, existing multipoint mode touch technology, the iPhone of Apple for example, the condenser type ways that adopt realize multi-point touch more, yet bigger problem is huge volume to multi-point touch at present, price is higher and yield is relatively poor, therefore is unfavorable for the large scale design and uses.
Therefore, how to develop a kind of multi-point touch control type input media that improves the known technology defective, real in pressing for the problem of research and development at present.
Summary of the invention
The object of the present invention is to provide a kind of multipoint touch type optical input device, in the time of can according to the operating system update of electronic product being tool multi-point touch function, the screen or the display panel that optionally make screen with touch controllable function or display panel upgrade to tool multi-point touch function, perhaps can directly on a physical plane, provide the man-machine interface of multi-point touch input, to replace traditional contact panel or input media.
Another object of the present invention is to provide a kind of multipoint touch type optical input device, need not the entity contact panel, only need a physical plane, no matter and the size of physical plane or shape, can realize the function that multi-point touch is imported.
Another purpose of the present invention is to provide a kind of multipoint touch type optical input device, can allow user's armrest refer to operate file opening, browser document and direct handwriting input literal, simultaneously with pointing or a plurality of touch point is operated upset, action such as amplified, dwindles.Multipoint touch type optical input device of the present invention can accurately be responded to user's operational order, is not subject to external interference, reduces the probability of erroneous judgement, and framework simplifies, and volume is less, can reduce cost and is applied to large scale.
For reaching above-mentioned purpose, of the present invention one than the broad sense embodiment for a kind of multipoint touch type optical input device is provided, be used for forming on the physical plane touch area, this multipoint touch type optical input device comprises at least: one first optics sensing module, have one first LASER Light Source and first image acquiring apparatus, this first LASER Light Source produces one first light, and this first image acquiring apparatus extracts this first light via one first reflected light that one or more target objects reflected on this touch area; And one second optics sensing module, have one second LASER Light Source and second image acquiring apparatus, this second LASER Light Source produces one second light, and this second image acquiring apparatus extracts this second light via one second reflected light that described one or more target objects reflected on this touch area.Wherein, this first optics sensing module and this second optics sensing module are obtained the optical information of the co-ordinate position information of the described one or more target objects of representative by this first reflected light and this second reflected light.
Multipoint touch type optical input device of the present invention can accurately be responded to user's operational order, is not subject to external interference, reduces the probability of erroneous judgement, and framework simplifies, and volume is less, can reduce cost and is applied to large scale.
Description of drawings
Figure 1A: be the configuration diagram of the multipoint touch type optical input device of preferred embodiment of the present invention.
Figure 1B: be the lateral section structural representation of Figure 1A.
Fig. 2 A: be the synoptic diagram that shows that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously.
Fig. 2 B: the optical information that obtains the described a plurality of target objects coordinate positions of representative for the first optics sensing module among Fig. 2 A and the second optics sensing module respectively.
Fig. 3 A: be another view that shows that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously.
Fig. 3 B: the optical information that obtains the described a plurality of target objects coordinate positions of representative for the first optics sensing module among Fig. 3 A and the second optics sensing module respectively.
Fig. 4 A: be another view that shows that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously.
Fig. 4 B: the optical information that obtains the described a plurality of target objects coordinate positions of representative for the first optics sensing module among Fig. 4 A and the second optics sensing module respectively.
Fig. 5 A: be another view that shows that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously.
Fig. 5 B: the optical information that obtains the described a plurality of target objects coordinate positions of representative for the first optics sensing module among Fig. 5 A and the second optics sensing module respectively.
Fig. 6 A: be another view that shows that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously.
Fig. 6 B: the optical information that obtains the described a plurality of target objects coordinate positions of representative for the first optics sensing module among Fig. 6 A and the second optics sensing module respectively.
Fig. 7: it shows the configuration diagram of the multipoint touch type optical input device of another preferred embodiment of the present invention.
Fig. 8 A and Fig. 8 B: it shows the configuration diagram of multipoint touch type optical input device practical application of the present invention respectively.
Description of reference numerals in the above-mentioned accompanying drawing is as follows:
1 multipoint touch type optical input device, 10 bodies
11 first optics sensing modules, 12 second optics sensing modules
3 touch areas, 4 target objects
101 sides, 102 openings
111 first LASER Light Source, 112 first image acquiring apparatus
113 first prism L1, first light
The R1 first reflected light 113a, 123a first surface
113b, 123b second surface 121 second LASER Light Source
122 second image acquiring apparatus, 123 second prisms
The L2 second light R2 second reflected light
The C1 first start bit is put C2 first final position
The D1 second reference position D2 second final position
41 first target objects, 42 second target objects
43 the 3rd target objects, 44 four-index objects
T1, t2, t3 times 2 display panel
14 load bearing seats, 15 slide mechanisms
A43, a42, a41, a44, b41, b42, b43, b44 ripple
Embodiment
Some exemplary embodiments that embody feature of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different modes, its neither departing from the scope of the present invention, and explanation wherein and accompanying drawing be when the usefulness that explain in itself, but not in order to restriction the present invention.
Figure 1A is the configuration diagram of the multipoint touch type optical input device of preferred embodiment of the present invention, and Figure 1B is the lateral section structural representation of Figure 1A.Shown in Figure 1A and Figure 1B, multipoint touch type optical input device 1 of the present invention comprises body 10, the first optics sensing module 11 and the second optics sensing module 12.Wherein, the first optics sensing module 11 and the second optics sensing module 12 are arranged in the body 10, and form a touch area 3 on a physical plane 2, to obtain the optical information of representing target objects 4 coordinate positions.In the present embodiment, body 10 is a housing, and at least one side 101 of this body 10 has an opening 102.In the present embodiment, target objects 4 can be people's finger or pen, and not as limit.In certain embodiments, physical plane 2 can be desktop or does not have a viewing area of display panel of touch controllable function, and not as limit.
In the present embodiment, the first optics sensing module 11 comprises first LASER Light Source 111, first image acquiring apparatus 112, first prism (prism) 113, and wherein first LASER Light Source 111 has higher directive property, can reflect preferable luminous point.First LASER Light Source 111 is to stamp a uniform light with for example scanning or leaded light mode on touch area 3, and wherein the first light L1 that throwed of this first LASER Light Source 111 can be invisible light, infrared light for example, but not as limit.First image acquiring apparatus 112 can be for example light sensor, camera (camera) or linear imaging sensor (linear image sensor), to be used to receive the first reflected light R1 of the first light L1 through target objects 4 reflections, to survey the relative coordinate position of this target objects 4, and utilize the optical information that receives to convert the controller (not shown) that electronic signal inputs to an electronic product to, to reach function of multi-spot touch.First prism 113 is arranged on the path of the first light L1 that first LASER Light Source 111 throwed, and framework is for can make the first light L1 penetrate and receive the first reflected light R1, and with the first reflected light R1 by a total reflection first image acquiring apparatus 112 that leads, so that first image acquiring apparatus 112 can be obtained the optical information of the relative coordinate position of representing this target objects 4.First LASER Light Source, 111 neighbours establish and towards the first surface 113a of first prism 113, make the first light L1 penetrate first prism 113 via first surface 113a.First image acquiring apparatus, 112 neighbours establish and towards the second surface 113b of first prism 113, make the first reflected light R1 can be via the total reflection of second surface 113b first image acquiring apparatus 112 that leads.
In the present embodiment, the second optics sensing module 12 comprises second LASER Light Source 121, second image acquiring apparatus 122, second prism (prism) 123, and wherein second LASER Light Source 121 has higher directive property, can reflect preferable luminous point.Second LASER Light Source 121 is to stamp a uniform light with for example scanning or leaded light mode on touch area 3, and wherein the second light L2 that throwed of this second LASER Light Source 121 can be invisible light, infrared light for example, but not as limit.In the present embodiment, the first light L1 that throwed of the second light L2 that throwed of second LASER Light Source 121 and first LASER Light Source 111 has different wave length.Second image acquiring apparatus 122 can be for example light sensor, camera (camera) or linear imaging sensor (linear image sensor), to be used to receive the second reflected light R2 of the second light L2 through target objects 4 reflections, to survey the relative coordinate position of this target objects 4, and utilize the optical information that receives to convert the controller (not shown) that electronic signal inputs to an electronic product to, to reach function of multi-spot touch.Second prism 123 is arranged on the path of the second light L2 that second LASER Light Source 121 throwed, and framework is for can make the second light L2 penetrate and receive the second reflected light R2, and with the second reflected light R2 by a total reflection second image acquiring apparatus 122 that leads, so that second image acquiring apparatus 122 can be obtained the optical information of the relative coordinate position of representing this target objects 4.Second LASER Light Source, 121 neighbours establish and towards the first surface 123a of second prism 123, make the second light L2 penetrate second prism 123 via first surface 123a.Second image acquiring apparatus, 122 neighbours establish and towards the second surface 123b of second prism 123, make the second reflected light R2 can be via the total reflection of second surface 123b second image acquiring apparatus 122 that leads.
In certain embodiments, the first optics sensing module 11 and the second optics sensing module 12 are arranged at two opposite end portions of body 10, make the angle of the first light L1 that first LASER Light Source and second LASER Light Source throw and the second light L2 vertical substantially.In certain embodiments, but first LASER Light Source 111, first image acquiring apparatus 112 and first prism, 113 frameworks are a modular form or are arranged at separably in the body 10.In certain embodiments, but second LASER Light Source 121, second image acquiring apparatus 122 and second prism, 123 frameworks are a modular form or are arranged at separably in the body 10.
In the present embodiment, the first optics sensing module 11 and the second optics sensing module 12 can utilize first image acquiring apparatus 112 and second image acquiring apparatus 122 to obtain the optical information of representing target objects 4, for example phase differential and intensity of reflected light can be oriented the X-axis and the Y-axis co-ordinate position information of target objects 4.Fig. 2 A shows the synoptic diagram that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously, and Fig. 2 B obtains the optical information of the described a plurality of target objects coordinate positions of representative respectively for the first optics sensing module and the second optics sensing module among Fig. 2 A.Shown in Figure 1A, Figure 1B, Fig. 2 A and Fig. 2 B, first LASER Light Source 111 of the first optics sensing module 11 is to put C1 by first start bit to be scanned up to the first final position C2, for example is scanned up to an angle of 90 degrees by 0 degree.Simultaneously, second LASER Light Source 121 of the second optics sensing module 12 also can be scanned up to the second final position D2 by the second reference position D1.In the present embodiment, the first final position C2 is identical graticule position with the second reference position D1.The first light L1 that first LASER Light Source 111 of the first optics sensing module 11 is launched can put C1 by first start bit apace and be scanned up to the first final position C2.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, first image acquiring apparatus 112 can receive the first reflected light R1 of similar and different intensity in different scanning time t1, t2, t3 respectively from the 3rd target objects 43, second target objects 42 and first target objects 41, for example obtain ripple a43, a42, a41 respectively with same intensity or varying strength in time t1, t2, t3, the close together of second target objects 42 wherein, catoptrical intensity is stronger.Simultaneously, the second light L2 that launched of second LASER Light Source 121 of the second optics sensing module 12 can be scanned up to the second final position D2 by the second reference position D1 apace.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, cause second target objects 42 and the 3rd target objects 43 are the rears that are positioned at first target objects 41 with respect to second LASER Light Source 121, therefore second image acquiring apparatus 122 only can receive the second reflected light R2 from first target objects 41 during t2 sweep time, for example obtains the ripple b41 of certain strength in time t2.Therefore, by the first optics sensing module 11 only can remedy by one second optics sensing module 12 carry out sensing the mistake that may cause survey that (for example second target objects 42 and the 3rd target objects 43 are covered by first target objects 41, make its optical information can't only utilize the second optics sensing module 12 to record), therefore the first optics sensing module 11 and the second optics sensing module 12 can cooperatively interact, can sense the quantity of a plurality of target objects whereby effectively, the optical information such as time of intensity of reflected light and scanning, the controller that again this optical information is sent to an electronic product performs calculations, to obtain the co-ordinate position information of a plurality of target objects, in order to control.
Fig. 3 A another view for showing that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously, and Fig. 3 B obtains the optical information of the described a plurality of target objects coordinate positions of representative respectively for the first optics sensing module and the second optics sensing module among Fig. 3 A.Shown in Figure 1A, Figure 1B, Fig. 3 A and Fig. 3 B, first LASER Light Source 111 of the first optics sensing module 11 is to put C1 by first start bit to be scanned up to the first final position C2, for example is scanned up to an angle of 90 degrees by 0 degree.Simultaneously, second LASER Light Source 121 of the second optics sensing module 12 also can be scanned up to the second final position D2 by the second reference position D1.In the present embodiment, the first final position C2 is identical graticule position with the second reference position D1.The first light L1 that first LASER Light Source 111 of the first optics sensing module 11 is launched can put C1 by first start bit apace and be scanned up to the first final position C2.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, cause second target objects 42 and the 3rd target objects 43 are positioned at the rear of first target objects 41 with respect to first LASER Light Source 111, therefore first image acquiring apparatus 112 only can receive the first reflected light R1 from first target objects 41 during t2 sweep time, for example obtains the ripple a41 of certain strength in time t2.Simultaneously, the second light L2 that launched of second LASER Light Source 121 of the second optics sensing module 12 can be scanned up to the second final position D2 by the second reference position D1 apace.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, second image acquiring apparatus 122 can receive the second reflected light R2 of similar and different intensity in different scanning time t1, t2, t3 respectively from first target objects 41, second target objects 42 and the 3rd target objects 43, for example obtain ripple b41, b42, b43 respectively with same intensity or varying strength in time t1, t2, t3, the close together of second target objects 42 wherein, catoptrical intensity is stronger.Therefore, by the second optics sensing module 12 only can remedy by one first optics sensing module 11 carry out sensing the mistake that may cause survey that (for example second target objects 42 and the 3rd target objects 43 are covered by first target objects 41, make its optical information can't only utilize the first optics sensing module 11 to record), therefore the first optics sensing module 11 and the second optics sensing module 12 can cooperatively interact, can sense the quantity of a plurality of target objects whereby effectively, the optical information such as time of intensity of reflected light and scanning, the controller that again this optical information is sent to an electronic product performs calculations, to obtain the co-ordinate position information of a plurality of target objects, in order to control.
Fig. 4 A another view for showing that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously, and Fig. 4 B obtains the optical information of representing these a plurality of target objects coordinate positions respectively for the first optics sensing module and the second optics sensing module among Fig. 4 A.Shown in Figure 1A, Figure 1B, Fig. 4 A and Fig. 4 B, first LASER Light Source 111 of the first optics sensing module 11 is to put C1 by first start bit to be scanned up to the first final position C2, for example is scanned up to an angle of 90 degrees by 0 degree.Simultaneously, second LASER Light Source 121 of the second optics sensing module 12 also can be scanned up to the second final position D2 by the second reference position D1.In the present embodiment, the first final position C2 is identical graticule position with the second reference position D1.The first light L1 that first LASER Light Source 111 of the first optics sensing module 11 is launched can put C1 by first start bit apace and be scanned up to the first final position C2.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, first image acquiring apparatus 112 can receive the first reflected light R1 of varying strength in different scanning time t1, t2, t3 respectively from first target objects 41, second target objects 42 and the 3rd target objects 43, for example obtain ripple a41, a42, a43 respectively with varying strength in time t1, t2, t3, wherein the distance of first target objects 41, second target objects 42 and the 3rd target objects 43 is cumulative in regular turn, and catoptrical intensity is then successively decreased in regular turn.Simultaneously, the second light L2 that launched of second LASER Light Source 121 of the second optics sensing module 12 can be scanned up to the second final position D2 by the second reference position D1 apace.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, second image acquiring apparatus 122 can receive the second reflected light R2 of varying strength in different scanning time t1, t2, t3 respectively from first target objects 41, second target objects 42 and the 3rd target objects 43, for example obtain ripple b41, b42, b43 respectively with varying strength in time t1, t2, t3, wherein the distance of first target objects 41, second target objects 42 and the 3rd target objects 43 in regular turn decrescence, catoptrical intensity then increases progressively in regular turn.Therefore the first optics sensing module 11 and the second optics sensing module 12 can cooperatively interact, can sense the optical information such as time of quantity, intensity of reflected light and the scanning of a plurality of target objects whereby effectively, the controller that again this optical information is sent to an electronic product performs calculations, to obtain the co-ordinate position information of a plurality of target objects, in order to control.
Fig. 5 A another view for showing that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously, and Fig. 5 B obtains the optical information of representing these a plurality of target objects coordinate positions respectively for the first optics sensing module and the second optics sensing module among Fig. 5 A.Shown in Figure 1A, Figure 1B, Fig. 5 A and Fig. 5 B, first LASER Light Source 111 of the first optics sensing module 11 is to put C1 by first start bit to be scanned up to the first final position C2, for example is scanned up to an angle of 90 degrees by 0 degree.Simultaneously, second LASER Light Source 121 of the second optics sensing module 12 also can be scanned up to the second final position D2 by the second reference position D1.In the present embodiment, the first final position C2 is identical graticule position with the second reference position D1.The first light L1 that first LASER Light Source 111 of the first optics sensing module 11 is launched can put C1 by first start bit apace and be scanned up to the first final position C2.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, first image acquiring apparatus 112 can receive the first reflected light R1 of varying strength in different scanning time t1, t2, t3 respectively from the 3rd target objects 43, second target objects 42 and first target objects 41, for example obtain ripple a43, a42, a41 respectively with varying strength in time t1, t2, t3, wherein the distance of the 3rd target objects 43, second target objects 42 and first target objects 41 in regular turn decrescence, catoptrical intensity then increases progressively in regular turn.Simultaneously, the second light L2 that launched of second LASER Light Source 121 of the second optics sensing module 12 can be scanned up to the second final position D2 by the second reference position D1 apace.When being scanned up to first target objects 41, second target objects 42 and the 3rd target objects 43, second image acquiring apparatus 122 can receive the second reflected light R2 of varying strength in different scanning time t1, t2, t3 respectively from first target objects 41, second target objects 42 and the 3rd target objects 43, for example obtain ripple b41, b42, b43 respectively with varying strength in time t1, t2, t3, wherein the distance of first target objects 41, second target objects 42 and the 3rd target objects 43 is cumulative in regular turn, and catoptrical intensity is then successively decreased in regular turn.Therefore the first optics sensing module 11 and the second optics sensing module 12 can cooperatively interact, can sense the optical information such as time of quantity, intensity of reflected light and the scanning of a plurality of target objects whereby effectively, the controller that again this optical information is sent to an electronic product performs calculations, to obtain the co-ordinate position information of a plurality of target objects, in order to control.
Fig. 6 A another view for showing that a plurality of target objects are imported in the touch area of multipoint touch type optical input device of the present invention simultaneously, and Fig. 6 B obtains the optical information of the described a plurality of target objects coordinate positions of representative respectively for the first optics sensing module and the second optics sensing module among Fig. 6 A.Shown in Figure 1A, Figure 1B, Fig. 6 A and Fig. 6 B, first LASER Light Source 111 of the first optics sensing module 11 is to put C1 by first start bit to be scanned up to the first final position C2, for example is scanned up to an angle of 90 degrees by 0 degree.Simultaneously, second LASER Light Source 121 of the second optics sensing module 12 also can be scanned up to the second final position D2 by the second reference position D1.In the present embodiment, the first final position C2 is identical graticule position with the second reference position D1.The first light L1 that first LASER Light Source 111 of the first optics sensing module 11 is launched can put C1 by first start bit apace and be scanned up to the first final position C2.When being scanned up to first target objects 41, second target objects 42, when the 3rd target objects 43 and four-index object 44, because of the 3rd index object 43 is covered by the second index object 42, therefore first image acquiring apparatus 112 can be in different scanning time t1, t2, t3 is respectively from first target objects 41, second target objects 42 and four-index object 44 receive the first reflected light R1 of similar and different intensity, for example in time t1, t2, t3 obtains the ripple a41 with similar and different intensity respectively, a42, a44, the close together of second target objects 42 wherein, catoptrical intensity is stronger.Simultaneously, the second light L2 that launched of second LASER Light Source 121 of the second optics sensing module 12 can be scanned up to the second final position D2 by the second reference position D1 apace.When being scanned up to second target objects 42, four-index object 44 and the 3rd target objects 43, because of the first index object 41 is covered by four-index object 44, therefore second image acquiring apparatus 122 can receive the second reflected light R2 of similar and different intensity in different scanning time t1, t2, t3 respectively from second target objects 42, four-index object 44 and the 3rd target objects 43, for example obtain ripple b42, b44, b43 respectively with similar and different intensity in time t1, t2, t3, the close together of four-index object 44 wherein, catoptrical intensity is stronger.Therefore the first optics sensing module 11 and the second optics sensing module 12 can cooperatively interact, can sense the optical information such as time of quantity, intensity of reflected light and the scanning of a plurality of target objects whereby effectively, the controller that again this optical information is sent to an electronic product performs calculations, to obtain the co-ordinate position information of a plurality of target objects, in order to control.
The controller that multipoint touch type optical input device 1 of the present invention can be sent to optical information one electronic product performs calculations so that optical information is converted to co-ordinate position information, in order to control.According to conception of the present invention, controller can utilize the optical information that receives similar triangle definition mode calculation, with the optical information that utilization obtains, for example the quantity of reflection spot, phase differential and intensity of reflected light are with calculation and the co-ordinate position information of orienting the XY axle.
See also Fig. 7, it shows the configuration diagram of the multipoint touch type optical input device of another preferred embodiment of the present invention.In this embodiment, the main framework of multipoint touch type optical input device is similar with Figure 1B illustrated embodiment to Figure 1A to function, therefore do not repeat them here, the multipoint touch type optical input device of present embodiment need not use body, reduced volume and reducing cost further.Multipoint touch type optical input device of the present invention comprises the first optics sensing module 11, the second optics sensing module 12 and load bearing seat 14, wherein this load bearing seat 14 has a slide mechanism 15 on a surface, this the first optics sensing module 11 and/or the second optics sensing module 12 can be arranged on this slide mechanism 15, can adjust the relative distance of the first optics sensing module 11 and the second optics sensing module 12 whereby, size with the touch area of flexibly adjusting multipoint touch type optical input device, for example can adjust between 20 inches to 42 inches, with range and the elasticity that increases its application.
In the present embodiment, after calculating into co-ordinate position information in the optical information that obtains target objects and by controller, controller can continue further to judge whether to detect have or not that target objects is pressed, the relative distance of a plurality of target objects has or not change, target objects to have or not to leave touch area etc., cooperate the action of a plurality of target objects whereby, just can carry out for example enlarged image, downscaled images, image rotating, mobile image or the like function.
See also Fig. 8 A and Fig. 8 B, it shows the configuration diagram of multipoint touch type optical input device practical application of the present invention respectively.Multipoint touch type optical input device 1 of the present invention is removably to be mounted on the display panel 2 only with a display func, and general display panel 2 of not having touch-control input function is promoted becomes the display panel with multi-point touch function.Certainly, multipoint touch type optical input device 1 of the present invention also can directly be arranged in the body of display panel 2.In other embodiments, multipoint touch type optical input device 1 of the present invention also can directly form the touch area on a physical plane, need not framework in the viewing area of display panel, therefore can be applicable to virtually any size, and has application elasticity.
In sum, the invention provides a kind of multipoint touch type optical input device, not only can be applicable to electronics applications such as portable information, communication or network equipment, education, amusement, displaying, and can replace the single-point touch screen, more humane and interesting man machine operation interface can also be provided, even can accomplish single-point touch formula in the past or the action that mouse was difficult to accomplish, for example many people operate on a physical plane simultaneously, or utilize this technology to develop game mode different from the past by recreation manufacturer.When multipoint touch type optical input device of the present invention can be used for the tool multi-point touch according to the operating system update of electronic product, the screen that optionally makes all not have touch controllable function at present upgrades to the screen of tool multi-point touch function, or the man-machine interface that directly on a physical plane, provides multi-point touch to import, to replace traditional contact panel or input media.Multipoint touch type optical input device of the present invention need not the entity contact panel, only needs a physical plane, no matter and the size of physical plane or shape, can realize the function that multi-point touch is imported.In addition, multipoint touch type optical input device of the present invention can accurately be responded to user's operational order, is not subject to external interference, reduces the probability of erroneous judgement, and framework simplifies, and volume is less, can reduce cost and is applied to large scale.
The present invention must be appointed by those of ordinary skills and executes that the craftsman thinks and be to modify as all, right neither scope of taking off as the desire protection of attached claim institute.
Claims (14)
1. a multipoint touch type optical input device is used for forming a touch area on the physical plane, and this multipoint touch type optical input device comprises at least:
One first optics sensing module, have one first LASER Light Source and first image acquiring apparatus, this first LASER Light Source produces one first light, and this first image acquiring apparatus extracts this first light via one first reflected light that one or more target objects reflected on this touch area; And
One second optics sensing module, have one second LASER Light Source and second image acquiring apparatus, this second LASER Light Source produces one second light, and this second image acquiring apparatus extracts this second light via one second reflected light that described one or more target objects reflected on this touch area;
Wherein, this first optics sensing module and this second optics sensing module are obtained the optical information of the co-ordinate position information of the described one or more target objects of representative by this first reflected light and this second reflected light.
2. multipoint touch type optical input device as claimed in claim 1 also comprises a body, and this first optics sensing module and this second optics sensing module are arranged at this body interior.
3. multipoint touch type optical input device as claimed in claim 2 wherein has an opening at least one side of this body.
4. multipoint touch type optical input device as claimed in claim 2, wherein this first optics sensing module and this second optics sensing module are arranged at the both ends of this body.
5. multipoint touch type optical input device as claimed in claim 1, wherein this first light and this second light that are produced of this first LASER Light Source and this second LASER Light Source has different wave length.
6. multipoint touch type optical input device as claimed in claim 1, wherein this first image acquiring apparatus and this second image acquiring apparatus are light sensor, camera or linear imaging sensor.
7. multipoint touch type optical input device as claimed in claim 1, wherein this first optics sensing module also comprises one first prism, be arranged on the path of this first light that this first LASER Light Source throws, and framework is for making this first light penetration and receive this first reflected light, and with this first reflected light by a total reflection this first image acquiring apparatus that leads.
8. multipoint touch type optical input device as claimed in claim 1, wherein this second optics sensing module also comprises one second prism, be arranged on the path of this second light that this second LASER Light Source throws, and framework is for making this second light penetration and receive this second reflected light, and with this second reflected light by a total reflection this second image acquiring apparatus that leads.
9. multipoint touch type optical input device as claimed in claim 1, wherein the angle of this second light of throwing of this first light of throwing of this first LASER Light Source and this second LASER Light Source is vertical.
10. multipoint touch type optical input device as claimed in claim 1, also comprise a load bearing seat, this load bearing seat has a slide mechanism on a surface, this first optics sensing module and/or this second optics sensing module are arranged on this slide mechanism, to be used to adjust the relative distance of this first optics sensing module and this second optics sensing module.
11. multipoint touch type optical input device as claimed in claim 1, wherein this first LASER Light Source is throwed this first light in this touch area with scanning or leaded light mode, and this second LASER Light Source is throwed this second light in this touch area with scanning or leaded light mode.
12. multipoint touch type optical input device as claimed in claim 1, wherein this physical plane is a display panel.
13. multipoint touch type optical input device as claimed in claim 1, wherein this multipoint touch type optical input device removably is mounted on the electronic product.
14. multipoint touch type optical input device as claimed in claim 1, wherein this multipoint touch type optical input device is arranged in the electronic product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134501A CN101866246A (en) | 2009-04-17 | 2009-04-17 | Multipoint touch type optical input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910134501A CN101866246A (en) | 2009-04-17 | 2009-04-17 | Multipoint touch type optical input device |
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| Publication Number | Publication Date |
|---|---|
| CN101866246A true CN101866246A (en) | 2010-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910134501A Pending CN101866246A (en) | 2009-04-17 | 2009-04-17 | Multipoint touch type optical input device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076989A (en) * | 2013-03-25 | 2014-10-01 | 南京瓦迪电子科技有限公司 | Optical multi-touch device, touch frame and touch implementation method |
| US9104269B2 (en) | 2013-03-15 | 2015-08-11 | Wistron Corporation | Touch control apparatus and associated selection method |
| TWI496056B (en) * | 2013-03-15 | 2015-08-11 | Wistron Corp | Touch control apparatus and associated selecting method |
| TWI498792B (en) * | 2013-08-06 | 2015-09-01 | Wistron Corp | Optical touch system and touch and display system |
| CN110798589A (en) * | 2019-10-22 | 2020-02-14 | 苏州凸现信息科技有限公司 | Intelligent work scanning device based on office automation |
| CN110989853A (en) * | 2019-10-23 | 2020-04-10 | 南方科技大学 | Laser virtual interaction system and interaction method based on liquid crystal photoelectric effect |
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2009
- 2009-04-17 CN CN200910134501A patent/CN101866246A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9104269B2 (en) | 2013-03-15 | 2015-08-11 | Wistron Corporation | Touch control apparatus and associated selection method |
| TWI496056B (en) * | 2013-03-15 | 2015-08-11 | Wistron Corp | Touch control apparatus and associated selecting method |
| TWI498788B (en) * | 2013-03-15 | 2015-09-01 | Wistron Corp | Touch control apparatus and associated selecting method |
| US9323394B2 (en) | 2013-03-15 | 2016-04-26 | Wistron Corporation | Touch control apparatus and associated selection method |
| CN104076989A (en) * | 2013-03-25 | 2014-10-01 | 南京瓦迪电子科技有限公司 | Optical multi-touch device, touch frame and touch implementation method |
| CN104076989B (en) * | 2013-03-25 | 2017-06-13 | 南京瓦迪电子科技有限公司 | A kind of optical multi-touch device, touch frame and the method for realizing touch-control |
| TWI498792B (en) * | 2013-08-06 | 2015-09-01 | Wistron Corp | Optical touch system and touch and display system |
| CN110798589A (en) * | 2019-10-22 | 2020-02-14 | 苏州凸现信息科技有限公司 | Intelligent work scanning device based on office automation |
| CN110989853A (en) * | 2019-10-23 | 2020-04-10 | 南方科技大学 | Laser virtual interaction system and interaction method based on liquid crystal photoelectric effect |
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Open date: 20101020 |