TWI408588B - Positioning method of lighting projector and optical touch apparatus - Google Patents
Positioning method of lighting projector and optical touch apparatus Download PDFInfo
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一種光學式觸控裝置與光源發射器定位方法，尤指一種組裝光學式觸控裝置的定位技術。An optical touch device and a light source transmitter positioning method, in particular, a positioning technology for assembling an optical touch device.
電阻式或電容式之觸控裝置必須額外之薄膜製程，此薄膜製程將影響面板之透明性能。同時，傳統的光學式觸控裝置是利用光線來偵測觸控面板表面接受手指觸摸的位置，因此不會影響該面板之透明性能，可較上述採用電阻式或電容式之觸控裝置擁有更佳的視覺效果。Resistive or capacitive touch devices require an additional film process that will affect the transparency of the panel. At the same time, the conventional optical touch device utilizes light to detect the position of the touch panel surface to be touched by the finger, so that the transparent performance of the panel is not affected, and the touch device can be more resistant than the above-mentioned resistive or capacitive touch device. Good visual effects.
傳統的光學式觸控裝置1其原理在於透過兩個角落的CCD/CMOS感測器，偵測接近物體所形成的陰影，經由三角定位找出觸控的位置。The principle of the conventional optical touch device 1 is to detect the shadow formed by the approaching object through the CCD/CMOS sensor at two corners, and find the position of the touch through the triangular positioning.
請參閱第一圖。第一圖為傳統的光學式觸控裝置之元件示意圖。傳統的光學式觸控裝置1包含一觸控面板10、二個光源發射器11a、11b及二個CCD/CMOS感測器13a、13b。觸控面板10表面具有一觸控區102，二個光源發射器11a、11b相對置於觸控面板10上之兩端角處，且光源發射器11a、11b各自連續投射一散射光線110a、110b覆蓋於觸控區102表面上方。該等二個CCD/CMOS感測器13a、13b各別鄰近光源發射器11a、11b分置於觸控面板10上之兩端角處，以偵測接近物體所形成的陰影，再經由三角定位找出觸控的位置S1。Please refer to the first figure. The first figure is a schematic diagram of components of a conventional optical touch device. The conventional optical touch device 1 includes a touch panel 10, two light source emitters 11a and 11b, and two CCD/CMOS sensors 13a and 13b. The surface of the touch panel 10 has a touch area 102. The two light source emitters 11a and 11b are oppositely disposed at opposite corners of the touch panel 10, and the light source emitters 11a and 11b continuously project a scattered light 110a, 110b. Covering the surface of the touch area 102. The two CCD/CMOS sensors 13a, 13b are respectively disposed adjacent to the light source emitters 11a, 11b at the opposite ends of the touch panel 10 to detect the shadow formed by the approaching object, and then through the triangular positioning. Find the location of the touch S1.
為了保持觸控面板10之透明性能，傳統的光學式觸控裝置1通常採用能夠發射非可見光的雷射二極體作為光源發射器11a、11b。然而，採用非可見光的雷射二極體作為光源發射器11a、11b的實施，需要相當長的時間才能夠完成光源發射器11a、11b定位，此實施係嚴重影響到組裝的效率，導致相當高的人力成本。In order to maintain the transparency of the touch panel 10, the conventional optical touch device 1 generally employs a laser diode capable of emitting non-visible light as the light source emitters 11a, 11b. However, the implementation of the non-visible laser diodes as the light source emitters 11a, 11b takes a considerable time to complete the positioning of the light source emitters 11a, 11b, which seriously affects the efficiency of assembly, resulting in a relatively high Labor costs.
有鑑於此，本發明提供一種光源發射器定位方法，該方法係利用雙波長光源發射器發射出的可見光線對準預設的標記，作為雙波長光源發射器定位在光學式觸控裝置中的依據，進而達到提高光學式觸控裝置組裝時的效率及品質的目的。In view of the above, the present invention provides a method for positioning a light source emitter, which uses a visible light line emitted by a dual-wavelength light source emitter to align a predetermined mark as a dual-wavelength light source emitter positioned in an optical touch device. Therefore, the purpose of improving the efficiency and quality of the optical touch device assembly is achieved.
本發明的實施例之光學式觸控裝置包括一觸控面板與一雙波長光源發射器。其中，觸控面板具一觸控區、一光源設置區及一定位標記。雙波長光源發射器設置於觸控面板之光源設置區，同時，雙波長光源發射器內部具一可見光雷射二極體與一非可見光雷射二極體，其中，非可見光雷射二極體用以產生對準定位標記之一非可見光線，可見光雷射二極體用以產生對準定位標記之一可見光線。The optical touch device of the embodiment of the invention comprises a touch panel and a dual-wavelength light source emitter. The touch panel has a touch area, a light source setting area and a positioning mark. The dual-wavelength light source emitter is disposed in the light source setting area of the touch panel, and the dual-wavelength light source emitter has a visible light laser diode and a non-visible light laser diode, wherein the non-visible laser diode The visible light laser diode is used to generate one of the alignment marks, and the visible light laser diode is used to generate one of the visible light lines of the alignment mark.
本發明的實施例之光源發射器定位方法，步驟包括：首先，提供一個具有一可見光雷射二極體與一非可見光雷射二極體的雙波長光源發射器，雙波長光源發射器置放於一觸控面板之一光源設置區上。接著，驅動雙波長光源發射器之可見光雷射二極體，以發射一可見光線。然後，校正雙波長光源發射器於光源設置區上的一適當位置，俾使可見光線對準觸控面板之一定位標記。最後，禁能(disable)雙波長光源發射器之可見光雷射二極體，俾使可見光雷射二極體無法發射可見光線。The method for positioning a light source emitter according to an embodiment of the present invention includes the steps of: firstly providing a dual-wavelength light source emitter having a visible light laser diode and a non-visible light laser diode, and placing the dual-wavelength light source emitter On a light source setting area of a touch panel. Next, the visible light laser diode of the dual wavelength light source emitter is driven to emit a visible light line. Then, the dual-wavelength light source emitter is calibrated at an appropriate position on the light source setting area, and the visible light is aligned with one of the touch panel positioning marks. Finally, the visible light laser diode of the dual-wavelength light source emitter is disabled, so that the visible light laser diode cannot emit visible light.
綜上所述，本實施例揭露之光源發射器定位方法係提供組裝人員憑著肉眼可見的光線，作為光源發射器定位在光學式觸控裝置中的判斷依據。如此，本實施例能夠讓光源發射器更準確且快速的達成定位的目的，同時也增進了光學式觸控裝置組裝上的方便性，達到降低人力花費的目的。In summary, the light source emitter positioning method disclosed in the embodiment provides the light source visible to the assembler as a basis for determining the position of the light source emitter in the optical touch device. In this way, the embodiment can enable the light source emitter to achieve the purpose of positioning more accurately and quickly, and at the same time, the convenience of assembling the optical touch device is improved, and the labor cost is reduced.
然而，為能確實且充分揭露本發明，併予列舉出較佳實施例，請配合參照圖示而詳細說明如後述：However, in order to be able to fully and fully disclose the present invention, and to exemplify the preferred embodiments, the following description will be described in detail with reference to the accompanying drawings:
請參考第二圖。第二圖揭示本發明之一實施例的雙波長光源發射器定位前、後的結構示意圖。本實施例之光學式觸控裝置2a包括一觸控面板20與一雙波長光源發射器21。其中，觸控面板20具一觸控區202、一光源設置區204及一定位標記206。同時，雙波長光源發射器21設置於觸控面板20之光源設置區204。前述中，光源設置區204可以是觸控面板20之周邊之任一處。實務上，光學式觸控裝置2a兩角落處分別各自設有一雙波長光源發射器21。Please refer to the second picture. The second figure discloses a schematic structural view of a dual-wavelength light source emitter before and after positioning according to an embodiment of the present invention. The optical touch device 2a of the present embodiment includes a touch panel 20 and a dual-wavelength light source emitter 21. The touch panel 20 has a touch area 202, a light source setting area 204, and a positioning mark 206. At the same time, the dual-wavelength light source emitter 21 is disposed in the light source setting area 204 of the touch panel 20 . In the foregoing, the light source setting area 204 may be any one of the periphery of the touch panel 20 . In practice, a two-wavelength light source emitter 21 is respectively disposed at two corners of the optical touch device 2a.
值得一提的是，一般之光學式觸控裝置通常利用二個CCD/CMOS感測器分別設置在觸控面板之二對應角落上，並分別鄰近一光源發射器。因此，本發明之光學式觸控裝置2a同樣也利用二個CCD/CMOS感測器29鄰近於對應之雙波長光源發射器21。CCD/CMOS感測器29偵測接近物體所形成的陰影，並將偵測結果進行三角量測法運算，以判別觸控面板20之觸控區202表面接受觸摸的位置，達到觸控之目的。It is worth mentioning that a general optical touch device is usually disposed on two corresponding corners of the touch panel by two CCD/CMOS sensors, and adjacent to a light source emitter respectively. Therefore, the optical touch device 2a of the present invention also utilizes two CCD/CMOS sensors 29 adjacent to the corresponding dual-wavelength light source emitter 21. The CCD/CMOS sensor 29 detects the shadow formed by the approaching object, and performs a triangulation calculation on the detection result to determine the position of the touch panel 202 of the touch panel 20 to accept the touch, thereby achieving the purpose of the touch. .
參考第三圖，第三圖為本發明之一實施例的雙波長光源發射器結構示意圖。雙波長光源發射器21內部具一可見光雷射二極體210與一非可見光雷射二極體212，外部設有二個控制腳位(LD1、LD2)與一個接地腳位(G)。當控制腳位LD1被致能(enable)時，可見光雷射二極體210用以產生一可見光線P1，另外，當控制腳位LD2被致能(enable)時，非可見光雷射二極體212用以產生一非可見光線P3。可見光線P1與非可見光線P3為相互平行的光線，二者之間的距離非常微小，約為3mm的距離。前述中，非可見光線P3可以是紅外線或紫外線。Referring to the third figure, the third figure is a schematic structural view of a dual-wavelength light source emitter according to an embodiment of the present invention. The dual-wavelength light source emitter 21 has a visible light laser diode 210 and a non-visible laser diode 212, and two control pins (LD1, LD2) and a ground pin (G) are externally disposed. When the control pin LD1 is enabled, the visible light laser diode 210 is used to generate a visible light line P1, and when the control pin LD2 is enabled, the non-visible light laser diode is enabled. 212 is used to generate a non-visible line P3. The visible light line P1 and the non-visible light line P3 are mutually parallel light rays, and the distance between the two is very small, and is about 3 mm. In the foregoing, the non-visible light line P3 may be infrared light or ultraviolet light.
配合第二圖及第三圖，請參考第四圖。第四圖為本發明之一實施例的光源發射器定位流程示意圖。首先，在雙波長光源發射器21設置於觸控面板20之光源設置區204上(S10)。接著，致能雙波長光源發射器21使其產生可見光線P1(S11)。然後，校正雙波長光源發射器21於光源設置區204上的一適當位置(S12)。接下來，判斷可見光線P1是否對準定位標記206(S13)。如果可見光線P1(虛線標示)尚未對準定位標記206，則必需回到步驟S12，再次對雙波長光源發射器21置放於光源設置區204上的位置進行校正，俾使雙波長光源發射器21發射出的可見光線P1能夠對準觸控面板20之定位標記206，如第二圖所示。For the second and third figures, please refer to the fourth picture. The fourth figure is a schematic diagram of a positioning process of a light source emitter according to an embodiment of the present invention. First, the dual-wavelength light source emitter 21 is disposed on the light source setting area 204 of the touch panel 20 (S10). Next, the dual-wavelength light source emitter 21 is enabled to generate a visible light line P1 (S11). Then, the dual-wavelength light source emitter 21 is corrected at an appropriate position on the light source setting area 204 (S12). Next, it is judged whether or not the visible light line P1 is aligned with the positioning mark 206 (S13). If the visible light line P1 (indicated by the dotted line) has not been aligned with the positioning mark 206, it is necessary to return to step S12 to correct the position of the dual-wavelength light source emitter 21 placed on the light source setting area 204 again, so that the dual-wavelength light source emitter is enabled. The visible light line P1 emitted by the 21 can be aligned with the positioning mark 206 of the touch panel 20 as shown in the second figure.
當可見光線P1(實線標示)對準定位標記206時，組裝人員即可以將雙波長光源發射器21定位在光源設置區204的適當位置上(S14)。最後，組裝人員可以對雙波長光源發射器21之控制腳位LD1進行短路(shorting)或浮接(floating)，以禁能(disable)雙波長光源發射器21中的可見光雷射二極體210使其無法發射可見光線P1(S15)。When the visible light line P1 (solid line indication) is aligned with the positioning mark 206, the assembler can position the dual-wavelength light source emitter 21 at an appropriate position of the light source setting area 204 (S14). Finally, the assembler can short-circuit or float the control pin LD1 of the dual-wavelength light source emitter 21 to disable the visible light laser diode 210 in the dual-wavelength light source emitter 21. It is rendered incapable of emitting visible light P1 (S15).
在步驟S15後，如果對雙波長光源發射器21之控制腳位LD2致能(enable)，則雙波長光源發射器21中的非可見光雷射二極體212所產生的非可見光線P3將會對準定位標記206，作為光學式觸控裝置2a動作時的光源。After step S15, if the control pin LD2 of the dual-wavelength light source emitter 21 is enabled, the non-visible light line P3 generated by the non-visible light laser diode 212 in the dual-wavelength light source emitter 21 will The alignment mark 206 is aligned as a light source when the optical touch device 2a operates.
如此，本實施例利用雙波長光源發射器21發射出的可見光線P1對準預設的定位標記206，作為雙波長光源發射器21定位在光學式觸控裝置2a中的依據，進而達到提高光學式觸控裝置2a組裝時的效率及品質的目的。In this manner, the visible light P1 emitted by the dual-wavelength light source emitter 21 is aligned with the preset positioning mark 206 as a basis for the dual-wavelength light source emitter 21 to be positioned in the optical touch device 2a, thereby improving the optical. The purpose of efficiency and quality when assembling the touch device 2a.
復參考第二圖及第三圖。在校正雙波長光源發射器21於光源設置區204上的一適當位置(S12)之步驟中，如果雙波長光源發射器21設置的位置有偏差的時候，所發射出的可見光線P1(虛線標示)與觸控面板20的水平面之間將會產生一誤差角度θ，二者間所形成的非平行狀態，係導致可見光線P1無法對準定位標記206。另外，如果雙波長光源發射器21發射出的可見光線P1(實線標示)對準定位標記206時，即表示可見光線P1與觸控面板20的水平面之間沒有誤差角度θ，二者間係形成平行狀態，此時雙波長光源發射器21即是處在光源設置區204上的適當位置。Refer to the second and third figures. In the step of correcting the appropriate position (S12) of the dual-wavelength light source emitter 21 on the light source setting region 204, if the position set by the dual-wavelength light source emitter 21 is deviated, the emitted visible light P1 (dotted line indicates An error angle θ is generated between the horizontal plane of the touch panel 20 and the non-parallel state formed therebetween, so that the visible light line P1 cannot be aligned with the positioning mark 206. In addition, if the visible light line P1 (marked by the solid line) emitted by the dual-wavelength light source emitter 21 is aligned with the positioning mark 206, it means that there is no error angle θ between the visible light line P1 and the horizontal plane of the touch panel 20. A parallel state is formed in which the dual-wavelength light source emitter 21 is in an appropriate position on the light source setting area 204.
配合第三圖，請參考第五A圖。第五A圖為本發明之另一實施例的雙波長光源發射器結構示意圖。雙波長光源發射器23與第三圖所示的雙波長光源發射器21主要差異在於，雙波長光源發射器23具有一散光元件231。該散光元件231結合第三圖所示的雙波長光源發射器21，形成如第五A圖所示的雙波長光源發射器23。For the third picture, please refer to the fifth picture A. FIG. 5A is a schematic structural view of a dual-wavelength light source emitter according to another embodiment of the present invention. The main difference between the dual-wavelength light source emitter 23 and the dual-wavelength light source emitter 21 shown in the third figure is that the dual-wavelength light source emitter 23 has a diffusing element 231. The astigmatism element 231 is combined with the dual-wavelength light source emitter 21 shown in the third figure to form a dual-wavelength light source emitter 23 as shown in FIG.
配合第五A圖，參考第五B圖。第五B圖為第五A圖的雙波長光源發射器之光線強度分布示意圖。如第五B圖所示，雙波長光源發射器21發射出的可見光線P1與非可見光線P3係呈現中間光線強度最強，且光線強度從中間部份開始往兩側漸漸變弱的高斯分佈(Gaussian distribution)，此種具有高斯分佈的可見光線P1與非可見光線P3將會嚴重影響到光學式觸控裝置的光感測能力，導致誤動作發生。With reference to the fifth A picture, refer to the fifth B picture. Figure 5B is a schematic diagram of the light intensity distribution of the dual-wavelength light source emitter of Figure 5A. As shown in FIG. 5B, the visible light P1 and the non-visible light P3 emitted by the dual-wavelength light source emitter 21 exhibit the strongest intermediate light intensity, and the light intensity gradually decreases from the middle portion to the both sides. Gaussian distribution), such a visible light P1 and a non-visible light P3 with a Gaussian distribution will seriously affect the light sensing capability of the optical touch device, resulting in malfunction.
因此，為了解決雙波長光源發射器21發射的光線具有高斯分佈的情形，本發明係將散光元件231與雙波長光源發射器21整合成如第五A圖所示雙波長光源發射器23。如此，具有高斯分佈的可見光線P1與非可見光線P3經過散光元件231後，即會轉變成非高斯分布的一可見的散射光線P2與一非可見的散射光線P4。Therefore, in order to solve the case where the light emitted by the dual-wavelength light source emitter 21 has a Gaussian distribution, the present invention integrates the astigmatism element 231 and the dual-wavelength light source emitter 21 into a dual-wavelength light source emitter 23 as shown in FIG. Thus, the visible light P1 and the non-visible light P3 having a Gaussian distribution pass through the astigmatism element 231, and then become a visible scattered light P2 and a non-visible scattered light P4 which are not Gaussian.
復參考第五A圖。當控制腳位LD1被致能(enable)時，可見光雷射二極體210用以產生可見光線P1，此時，散光元件231則用來將可見光線P1折射形成可見的散射光線P2。另外，當控制腳位LD2被致能(enable)時，非可見光雷射二極體212用以產生非可見光線P3，此時，散光元件231則用來將非可見光線P3折射形成一非可見的散射光線P4。前述中，散射光線P2與散射光線P4為相互平行的光線，二者之間的距離非常微小，約為3mm的距離。Refer to Figure 5A again. When the control pin LD1 is enabled, the visible light laser diode 210 is used to generate the visible light P1. At this time, the astigmatism element 231 is used to refract the visible light P1 to form visible scattered light P2. In addition, when the control pin LD2 is enabled, the non-visible laser diode 212 is used to generate the non-visible light line P3. At this time, the astigmatism element 231 is used to refract the non-visible light line P3 to form a non-visible line. Scattered light P4. In the foregoing, the scattered light P2 and the scattered light P4 are mutually parallel rays, and the distance between them is very small, and is about 3 mm.
配合第五A圖，請參考第六圖。第六圖揭示本發明之另一實施例的雙波長光源發射器定位前、後的結構示意圖。本實施例之光學式觸控裝置2b與第二圖所示的光學式觸控裝置2a差異處在於，本實施例之光學式觸控裝置2b使用的雙波長光源發射器23具有散光元件231。在定位初期，先對雙波長光源發射器23進行致能，使其產生可見的散射光線P2。For the fifth A picture, please refer to the sixth picture. FIG. 6 is a schematic view showing the structure of the dual-wavelength light source emitter before and after positioning according to another embodiment of the present invention. The difference between the optical touch device 2b of the present embodiment and the optical touch device 2a shown in the second embodiment is that the dual-wavelength light source emitter 23 used in the optical touch device 2b of the present embodiment has a astigmatism element 231. In the initial stage of positioning, the dual wavelength source emitter 23 is first enabled to produce visible scattered light P2.
然後，校正雙波長光源發射器23於光源設置區204上的一適當位置。接下來，判斷可見的散射光線P2是否對準定位標記206。如果可見的散射光線P2(虛線標示)尚未對準定位標記206，則再次對雙波長光源發射器23置放於光源設置區204上的位置進行校正，俾使雙波長光源發射器23發射出的可見的散射光線P2(實線標示)能夠對準觸控面板20之定位標記206，如第六圖所示。Then, the dual-wavelength light source emitter 23 is corrected at an appropriate position on the light source setting area 204. Next, it is judged whether or not the visible scattered light P2 is aligned with the positioning mark 206. If the visible scattered light P2 (indicated by the dashed line) has not been aligned with the positioning mark 206, the position of the dual-wavelength light source emitter 23 placed on the light source setting area 204 is corrected again, so that the dual-wavelength light source emitter 23 emits The visible scattered light P2 (solid line indication) can be aligned with the positioning mark 206 of the touch panel 20, as shown in the sixth figure.
最後，組裝人員可以對雙波長光源發射器23之控制腳位LD1進行短路(shorting)或浮接(floating)，以禁能(disable)雙波長光源發射器23，使其無法發射出可見的散射光線P2。Finally, the assembler can short-circuit or float the control pin LD1 of the dual-wavelength light source emitter 23 to disable the dual-wavelength light source emitter 23 from emitting visible scattering. Light P2.
在光學式觸控裝置2b動作時，如果對雙波長光源發射器23之控制腳位LD2致能(enable)，雙波長光源發射器23所產生的非可見散射光線P4(如第五A圖所示)將會覆蓋於觸控面板20的觸控區202，並且對準定位標記206，以作為光學式觸控裝置2b動作時的光源。When the optical touch device 2b is activated, if the control pin LD2 of the dual-wavelength light source emitter 23 is enabled, the non-visible scattered light P4 generated by the dual-wavelength light source emitter 23 (as shown in FIG. The display will cover the touch area 202 of the touch panel 20 and align the positioning mark 206 to serve as a light source when the optical touch device 2b is operated.
復參考第六圖。本實施例之光學式觸控裝置2b更包括一CCD/CMOS感測器29，其被設置於觸控面板20之光源設置區204上，且鄰近於雙波長光源發射器23。如此，當使用者接近觸控面板20之觸控區202時，CCD/CMOS感測器29用以偵測接近物體所形成的陰影。Refer to the sixth picture. The optical touch device 2b of the present embodiment further includes a CCD/CMOS sensor 29 disposed on the light source setting area 204 of the touch panel 20 and adjacent to the dual-wavelength light source emitter 23. Thus, when the user approaches the touch area 202 of the touch panel 20, the CCD/CMOS sensor 29 is used to detect the shadow formed by the approaching object.
值得一提的是，一般之光學式觸控裝置通常利用二個CCD/CMOS感測器分別設置在觸控面板之二對應角落上，並分別鄰近一光源發射器。因此，本發明之光學式觸控裝置2b同樣也利用二個CCD/CMOS感測器29同時偵測接近物體所形成的陰影，並將偵測結果進行三角量測法運算，以判別觸控面板20之觸控區202表面接受觸摸的位置，達到觸控之目的。It is worth mentioning that a general optical touch device is usually disposed on two corresponding corners of the touch panel by two CCD/CMOS sensors, and adjacent to a light source emitter respectively. Therefore, the optical touch device 2b of the present invention also uses two CCD/CMOS sensors 29 to simultaneously detect the shadow formed by the approaching object, and performs a triangulation calculation on the detection result to determine the touch panel. The surface of the touch area 202 of 20 accepts the touched position to achieve the purpose of touch.
請參考第七A圖，第七A圖為本發明之一實施例之散光元件的立體圖。本實施例的散光元件231a其斷面可呈一弧面，而具有散光元件231a之雙波長光源發射器23a發出之非可見的散射光線P4係呈直線狀(如第七B圖所示)，其餘構件組成及實施方式係等同於上述實施例。Please refer to FIG. 7A, which is a perspective view of a astigmatism element according to an embodiment of the present invention. The astigmatism element 231a of this embodiment may have a curved surface, and the non-visible scattered light P4 emitted by the dual-wavelength light source emitter 23a having the astigmatism element 231a is linear (as shown in FIG. 7B). The remaining component compositions and embodiments are equivalent to the above embodiments.
請參考第八A圖，第八A圖為本發明之另一實施例之散光元件的立體圖。本實施例的散光元件231b其斷面呈並排之複數弧面，而具有散光元件231b之雙波長光源發射器23b發出之非可見的散射光線P4係呈虛線狀(如第八B圖所示)，其餘構件組成及實施方式係等同於上述實施例。Please refer to FIG. 8A, which is a perspective view of a astigmatism element according to another embodiment of the present invention. The astigmatism element 231b of the present embodiment has a plurality of side-by-side curved surfaces, and the non-visible scattered light P4 emitted by the dual-wavelength light source emitter 23b having the astigmatism element 231b has a dotted line shape (as shown in FIG. 8B). The remaining component compositions and implementations are equivalent to the above embodiments.
請參考第九A圖，第九A圖為本發明之再一實施例之散光元件的立體圖。本實施例的散光元件231c為一鮑威爾稜鏡((Powell lenses))。具有散光元件231c之雙波長光源發射器23c發出之非可見的散射光線P4係呈直線狀(如第九B圖所示)，其餘構件組成及實施方式係等同於上述實施例。另外，為了解決高斯分佈的問題，本發明更可以利用一繞射元件(DOE)、一射束形狀元件(Beam Shape)或一微透鏡(Micro Lens)等元件作為散光元件的應用實施例。Please refer to FIG. 9A, which is a perspective view of a astigmatism element according to still another embodiment of the present invention. The astigmatism element 231c of this embodiment is a Powell lens. The non-visible scattered light P4 emitted by the dual-wavelength light source emitter 23c having the astigmatism element 231c is linear (as shown in FIG. BB), and the remaining component compositions and embodiments are equivalent to the above embodiment. In addition, in order to solve the problem of Gaussian distribution, the present invention can further utilize an element such as a diffractive element (DOE), a beam shape element (Beam Shape) or a micro lens (Micro Lens) as an application embodiment of the astigmatism element.
綜上所述，本實施例揭露之光源發射器定位方法係提供組裝人員憑著肉眼可見的光線，作為光源發射器定位在光學式觸控裝置中的判斷依據。如此，本實施例能夠讓光源發射器更準確且快速的達成定位的目的，同時也增進了光學式觸控裝置組裝上的方便性，達到降低人力花費的目的。In summary, the light source emitter positioning method disclosed in the embodiment provides the light source visible to the assembler as a basis for determining the position of the light source emitter in the optical touch device. In this way, the embodiment can enable the light source emitter to achieve the purpose of positioning more accurately and quickly, and at the same time, the convenience of assembling the optical touch device is improved, and the labor cost is reduced.
惟，以上所述，僅為本發明最佳之一的具體實施例之詳細說明與圖式，任何熟悉該項技藝者在本發明之領域內，可輕易思及之變化或修飾皆可涵蓋在以下本案之專利範圍。However, the above description is only a detailed description of the specific embodiments of the present invention, and any one skilled in the art can easily conceive changes or modifications in the field of the present invention. The scope of the patent in this case below.
1．．．光學式觸控裝置1. . . Optical touch device
10．．．觸控面板10. . . Touch panel
11a、11b．．．光源發射器11a, 11b. . . Light source emitter
13a、13b．．．CCD/CMOS感測器13a, 13b. . . CCD/CMOS sensor
102．．．觸控區102. . . Touch area
110a、110b．．．散射光線110a, 110b. . . Scattered light
S1．．．觸控的位置S1. . . Touch position
2a、2b．．．光學式觸控裝置2a, 2b. . . Optical touch device
20．．．觸控面板20. . . Touch panel
202．．．觸控區202. . . Touch area
204．．．光源設置區204. . . Light source setting area
206．．．定位標記206. . . Positioning mark
θ．．．誤差角度θ. . . Error angle
21、23．．．雙波長光源發射器21, 23. . . Dual wavelength light source transmitter
210．．．可見光雷射二極體210. . . Visible light laser diode
212．．．非可見光雷射二極體212. . . Non-visible laser diode
LD1、LD2．．．控制腳位LD1, LD2. . . Control pin
G．．．接地腳位G. . . Grounding pin
P1．．．可見光線P1. . . Visible light
P3．．．非可見光線P3. . . Non-visible light
23、23a、23b、23c．．．雙波長光源發射器23, 23a, 23b, 23c. . . Dual wavelength light source transmitter
231、231a、231b、231c．．．散光元件231, 231a, 231b, 231c. . . Astigmatic component
P2．．．可見的散射光線P2. . . Visible scattered light
P4．．．非可見的散射光線P4. . . Non-visible scattered light
29．．．CCD/CMOS感測器29. . . CCD/CMOS sensor
第一圖為傳統的光學式觸控裝置之元件示意圖；The first figure is a schematic diagram of components of a conventional optical touch device;
第二圖為本發明之一實施例的雙波長光源發射器定位前、後的結構示意圖；The second figure is a schematic structural view of a dual-wavelength light source transmitter before and after positioning according to an embodiment of the present invention;
第三圖為本發明之一實施例的雙波長光源發射器結構示意圖；The third figure is a schematic structural view of a dual-wavelength light source transmitter according to an embodiment of the present invention;
第四圖為本發明之一實施例的光源發射器定位流程示意圖；The fourth figure is a schematic diagram of a positioning process of a light source transmitter according to an embodiment of the present invention;
第五A圖為本發明之另一實施例的雙波長光源發射器結構示意圖；5A is a schematic structural view of a dual-wavelength light source transmitter according to another embodiment of the present invention;
第五B圖為第五A圖的雙波長光源發射器之光線強度分布示意圖；Figure 5B is a schematic diagram showing the light intensity distribution of the dual-wavelength light source emitter of Figure 5A;
第六圖揭示本發明之另一實施例的雙波長光源發射器定位前、後的結構示意圖；FIG. 6 is a schematic structural view showing the front and rear of a dual-wavelength light source transmitter according to another embodiment of the present invention;
第七A圖為本發明之一實施例之散光元件的立體圖；7A is a perspective view of a astigmatism element according to an embodiment of the present invention;
第七B圖為使用第七A圖之散光元件發出呈直線狀散射光線的示意圖；Figure 7B is a schematic view showing the use of the astigmatism element of Figure 7 to emit linear scattered light;
第八A圖為本發明之另一實施例之散光元件的立體圖；8A is a perspective view of a astigmatism element according to another embodiment of the present invention;
第八B圖為使用第八A圖之散光元件發出呈虛線狀散射光線的示意圖；Figure 8B is a schematic view showing the use of the astigmatism element of Figure 8 to emit scattered light in a dotted line;
第九A圖為本發明之再一實施例之散光元件的立體圖；及9A is a perspective view of a astigmatism element according to still another embodiment of the present invention; and
第九B圖為使用第九A圖之散光元件發出呈直線狀散射光線的示意圖。Figure IX is a schematic view showing the use of the astigmatism element of Figure 9 to emit linearly scattered light.
代表圖為流程圖，故無元件符號。The representative diagram is a flow chart, so there is no component symbol.
Claims (10)
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| JP2002149328A (en) * | 2000-08-31 | 2002-05-24 | Ricoh Co Ltd | Coordinate input device |
| TW496965B (en) * | 2001-03-13 | 2002-08-01 | Jeng-Huei Chen | Apparatus of optical positioning |
| JP2004062408A (en) * | 2002-07-26 | 2004-02-26 | Ricoh Co Ltd | Coordinate input system and method of setting threshold for amount of dip thereof |
| TW201009671A (en) * | 2008-08-21 | 2010-03-01 | Tpk Touch Solutions Inc | Optical semiconductor laser touch-control device |
| TW201019187A (en) * | 2008-10-30 | 2010-05-16 | Hewlett Packard Development Co | Object locating system with cameras attached to frame |
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| JP2002149328A (en) * | 2000-08-31 | 2002-05-24 | Ricoh Co Ltd | Coordinate input device |
| TW496965B (en) * | 2001-03-13 | 2002-08-01 | Jeng-Huei Chen | Apparatus of optical positioning |
| JP2004062408A (en) * | 2002-07-26 | 2004-02-26 | Ricoh Co Ltd | Coordinate input system and method of setting threshold for amount of dip thereof |
| TW201009671A (en) * | 2008-08-21 | 2010-03-01 | Tpk Touch Solutions Inc | Optical semiconductor laser touch-control device |
| TW201019187A (en) * | 2008-10-30 | 2010-05-16 | Hewlett Packard Development Co | Object locating system with cameras attached to frame |
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