TWI465989B - The projection touch apparatus - Google Patents
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Description
本發明係有關觸控裝置，尤其是有關掃描投射觸控裝置。 The invention relates to a touch device, in particular to a scan projection touch device.
如第1圖所示，市面上有一種MEMS(微機電系統)掃描機構1，包括一掃描單元11、一掃描鏡12及一可見光源13；其中掃描單元11是一微機電系統(Micro Electro Mechanical System，MEMS)；掃描鏡12是一微掃描鏡(Micro scanning mirror，MSM)。當可見光源13射出對應於一固定或動態影像的光線投射於掃描鏡12時，透過掃描單元11帶動掃描鏡12由左至右，由上至下掃描投射至一投影面14上，即可顯示對應影像。 As shown in FIG. 1, there is a MEMS (Micro Electro Mechanical System) scanning mechanism 1 including a scanning unit 11, a scanning mirror 12 and a visible light source 13; wherein the scanning unit 11 is a microelectromechanical system (Micro Electro Mechanical) System, MEMS); Scanning mirror 12 is a Micro scanning mirror (MSM). When the visible light source 13 emits light corresponding to a fixed or moving image and is projected on the scanning mirror 12, the scanning unit 12 drives the scanning mirror 12 from left to right and scans from top to bottom to a projection surface 14 to display Corresponding to the image.
市面上也有包括兩個馬達組成的掃描單元及掃描鏡組成的掃描機構，利用掃描單元帶動掃描鏡，將光源射出的光線由左至右，由上至下掃描投射至一投影面上，以顯示對應影像。 There is also a scanning unit consisting of two scanning units and a scanning mirror. The scanning unit drives the scanning mirror to project the light emitted from the light source from left to right and from top to bottom to a projection surface for display. Corresponding to the image.
台灣專利M372974，揭示一種微機電掃描觸控螢幕，包括光源組件、微機電反射鏡、光感測器、光感測信號處理器及座標計算器所組成。當光源組件發出可見光線後，微機電反射鏡將可見光線掃描成為掃描光束，當筆或手指觸指螢幕時遮斷掃描光束而在光感測器上形成二個暗點後，藉由光感測信號處理器傳送對對應之電子信號至座標計算器，進而決定出觸點位置。 Taiwan patent M372974 discloses a MEMS scanning touch screen comprising a light source component, a microelectromechanical mirror, a light sensor, a light sensing signal processor and a coordinate calculator. When the light source component emits visible light, the microelectromechanical mirror scans the visible light into a scanning beam, and when the pen or finger touches the screen, the scanning beam is blocked to form two dark spots on the photosensor, and the light is sensed. The signal processor transmits the corresponding electronic signal to the coordinate calculator to determine the position of the contact.
上述台灣專利需利用兩個光源、兩個微機電反射鏡及多個光感測 器等多個元件，才能決定出觸點位置，成本較高；且需利用三角公式計算觸點座標，較費時間。 The above Taiwan patent requires the use of two light sources, two microelectromechanical mirrors and multiple light sensing A plurality of components, such as a device, can determine the position of the contact, and the cost is high; and the use of the triangular formula to calculate the contact coordinates is time consuming.
為了進一步改良習知的掃描投影觸控其中的觸點座標感測裝置，而提出本發明。 The present invention has been proposed in order to further improve the contact coordinate sensing device of the conventional scanning projection touch.
本發明的主要目的，在提供一種掃描投射觸控裝置，包括一掃描機構、一不可見光源、一半反射鏡、一感光單元及一微處理器所組成；掃描機構包括一掃描單元、一掃描鏡及一可見光源；可見光源及不可見光源發射的可見光及不可見光分別穿透半反射鏡及被半反射鏡反射，然後同一路徑射至掃描鏡；掃描單元帶動掃描鏡在一投影面上進行掃描，使螢幕顯出影像；當有一物件碰觸一螢幕的一觸點時，光感測單元將會感測到被物件反射的不可見光而產生一感測訊號；微處理器偵測到光感測單元傳送的感測訊號，依據感測信號在一掃描週期出現的時間，確認掃描單元在該時間帶動掃描鏡的掃描座標，得到對應於觸點的位置資訊，而輸出一對應的觸控信號。 A main object of the present invention is to provide a scanning projection touch device comprising a scanning mechanism, an invisible light source, a half mirror, a photosensitive unit and a microprocessor; the scanning mechanism comprises a scanning unit and a scanning mirror And a visible light source; the visible light and the invisible light emitted by the visible light source and the invisible light source respectively penetrate the half mirror and are reflected by the half mirror, and then the same path is incident on the scanning mirror; the scanning unit drives the scanning mirror to scan on a projection surface The image is displayed on the screen; when an object touches a touch of a screen, the light sensing unit senses the invisible light reflected by the object to generate a sensing signal; the microprocessor detects the light sense The sensing signal transmitted by the measuring unit is determined according to the time when the sensing signal appears in a scanning period, and the scanning unit drives the scanning coordinates of the scanning mirror at the time to obtain the position information corresponding to the contact, and outputs a corresponding touch signal. .
本發明的另一目的，在提供一種掃描投射觸控裝置，利用較便宜的感光單元及一個不可見光源，配合已知的掃描機構，就能達成感測觸點座標的效果，結構簡單，成本低，且不需利用三角公式計算觸點座標，較省時間。 Another object of the present invention is to provide a scanning projection touch device, which utilizes a cheaper photosensitive unit and an invisible light source, and cooperates with a known scanning mechanism to achieve the effect of sensing the contact coordinates, and has a simple structure and cost. Low, and no need to use the triangle formula to calculate the contact coordinates, saving time.
本發明的又一目的，在提供一種掃描投射觸控裝置，能感測物件在投影面前方的位置資訊或物件碰觸投影面產生的震動資訊，而分別輸出對應的觸控信號。 Another object of the present invention is to provide a scanning projection touch device capable of sensing position information of an object in front of a projection surface or vibration information generated by an object touching a projection surface, and respectively outputting corresponding touch signals.
本發明的掃描投射觸控裝置，包括：一掃描機構，設有一掃描單元及一掃描鏡；一不可見光源；一第一感光單元；一微處理器；其中該第一感光單元感測的第一感測信號及該掃描單元帶動該掃描鏡的掃描座標，分別透過有線或無線傳輸至該微處理器；俾當該第一感光單元置於一投影面的邊緣或置於該投影面的邊緣的外側，且該不可見光源發射的不可見光射至該掃描鏡，該掃描單元帶動該掃描鏡將該不可見光在該投影面上進行掃描，且一物件接觸或鄰近該投影面的一觸點時，該第一感光單元將感測到被該物件反射該掃描鏡掃描該投影面的不可見光，而在該掃描鏡掃描該投影面的一掃描週期內感測到一第一感測信號；該微處理器偵測到該第一感光單元傳送的該第一感測信號，依據該第一感測信號在該掃描週期出現的時間，確認該掃描單元在該時間帶動該掃描鏡的掃描座標，得到對應於該觸點的位置資訊而輸出對應的一第一觸控信號。 The scanning projection touch device of the present invention comprises: a scanning mechanism, a scanning unit and a scanning mirror; an invisible light source; a first photosensitive unit; a microprocessor; wherein the first photosensitive unit senses a sensing signal and the scanning unit drive the scanning coordinates of the scanning mirror to be respectively wired or wirelessly transmitted to the microprocessor; and when the first photosensitive unit is placed at an edge of a projection surface or placed at an edge of the projection surface The invisible light emitted by the invisible light source is incident on the scanning mirror, and the scanning unit drives the scanning mirror to scan the invisible light on the projection surface, and an object contacts or is adjacent to a contact of the projection surface The first photosensitive unit senses that the object scans the scanning mirror to scan the invisible light of the projection surface, and senses a first sensing signal during a scanning period in which the scanning mirror scans the projection surface; The microprocessor detects the first sensing signal transmitted by the first photosensitive unit, and confirms that the scanning unit is driven at the time according to the first sensing signal at the time when the scanning period occurs. Coordinate scanning mirror scanning, to give the corresponding contact location and outputting a signal corresponding to the first touch.
本發明的掃描投射觸控裝置，進一步包括一震動感測單元；該震動感測單元感測的第二感測信號透過有線或無線傳輸至該微處理器；俾當該震動感測單元置於該投影面的邊緣，且該物件碰觸該投影面時，該震動感測單元將會感測到該投影面被碰觸產生的震動，而在該掃描週期內感測到一第二感測信號；該微處理器感測 到該震動感測單元傳送的該第二感測信號，依據不同強度的該第二感測信號輸出對應的一第二觸控信號。 The scanning projection touch device of the present invention further includes a vibration sensing unit; the second sensing signal sensed by the vibration sensing unit is transmitted to the microprocessor through wire or wireless; when the vibration sensing unit is placed The edge of the projection surface, and when the object touches the projection surface, the vibration sensing unit senses the vibration generated by the projection surface being touched, and senses a second sensing during the scanning period. Signal; the microprocessor senses The second sensing signal transmitted by the vibration sensing unit outputs a corresponding second touch signal according to the second sensing signal of different strengths.
本發明的掃描投射觸控裝置，進一步包括一第二感光單元；該第二感光單元感測的第三感測信號透過有線或無線傳輸至該微處理器；俾當該第二感光單元置於該投影面的前方時，該第二感光單元將感測到被該物件反射該掃描鏡掃描該投影面的不可見光，而在該掃描鏡掃描該投影面的該掃描週期內感測到一第三感測信號；該微處理器偵測到該第二感光單元傳送的該第三感測信號，依據該第三感測信號在該掃描週期出現的時間，確認該物件在該投影面前方的形狀或位置資訊，而輸出一對應的互動信號。 The scanning projection touch device of the present invention further includes a second photosensitive unit; the third sensing signal sensed by the second photosensitive unit is transmitted to the microprocessor through wire or wireless; and when the second photosensitive unit is placed When the front surface of the projection surface is in front of the projection surface, the second photosensitive unit senses the invisible light that is scanned by the object to scan the projection surface, and senses a scan period in the scanning period in which the scanning mirror scans the projection surface. a third sensing signal; the microprocessor detects the third sensing signal transmitted by the second photosensitive unit, and confirms that the object is in front of the projection surface according to the third sensing signal at the time of the scanning period Shape or position information, and output a corresponding interactive signal.
本發明的掃描投射觸控裝置，進一步包括一半反射鏡；該掃描機構進一步包括一可見光源；該可見光源及該不可見光源分別置於該半反射鏡的側邊；該半反射鏡置於該掃描鏡的側邊；該可見光源及該不可見光源發射的可見光及不可見光分別穿透該半反射鏡及被該半反射鏡反射，然後分別射至該掃描鏡。 The scanning projection touch device of the present invention further includes a half mirror; the scanning mechanism further includes a visible light source; the visible light source and the invisible light source are respectively disposed at sides of the half mirror; the half mirror is disposed on the side The side of the scanning mirror; the visible light source and the visible light and the invisible light emitted by the invisible light source respectively penetrate the half mirror and are reflected by the half mirror, and then respectively incident on the scanning mirror.
其中該可見光及該不可見光是同一路徑分別射至該掃描鏡；該掃描機構是微機電系統掃描機構；該可見光源為雷射光源；該不可見光源為紅外線光源或紫外線光源。 The visible light and the invisible light are respectively emitted to the scanning mirror by the same path; the scanning mechanism is a MEMS scanning mechanism; the visible light source is a laser light source; and the invisible light source is an infrared light source or an ultraviolet light source.
本發明的其他目的、功效，請參閱圖式及實施例，詳細說明如下。 For other purposes and functions of the present invention, please refer to the drawings and the embodiments, which are described in detail below.
1‧‧‧MEMS掃描機構 1‧‧‧MEMS scanning mechanism
10‧‧‧掃描機構 10‧‧‧Scanning agency
11‧‧‧掃描單元 11‧‧‧Scan unit
12‧‧‧掃描鏡 12‧‧‧ Scanning mirror
13‧‧‧可見光源 13‧‧‧ Visible light source
131‧‧‧可見光 131‧‧‧ Visible light
14‧‧‧投影面 14‧‧‧Projection surface
141‧‧‧邊緣 141‧‧‧ edge
2‧‧‧掃描投射觸控裝置 2‧‧‧Scan projection touch device
21‧‧‧不可見光源 21‧‧‧Invisible light source
211‧‧‧不可見光 211‧‧‧Invisible light
22‧‧‧半反射鏡 22‧‧‧Half mirror
23‧‧‧第一感光單元 23‧‧‧First photosensitive unit
231‧‧‧第一感測信號 231‧‧‧First sensing signal
24‧‧‧第二感光單元 24‧‧‧Second photosensitive unit
241‧‧‧第三感測信號 241‧‧‧ Third sensing signal
25‧‧‧震動感測單元 25‧‧‧Vibration sensing unit
251‧‧‧第二感測信號 251‧‧‧Second sensing signal
26‧‧‧微處理器 26‧‧‧Microprocessor
27‧‧‧物件 27‧‧‧ objects
271‧‧‧觸點 271‧‧‧Contacts
第1圖為已知MEMS掃描機構掃描投射至一投影面的示意圖。 Figure 1 is a schematic diagram of a known MEMS scanning mechanism scanning projection onto a projection surface.
第2圖為本發明掃描投射觸控裝置的示意圖。。 2 is a schematic view of a scanning projection touch device of the present invention. .
第3圖為本發明第一感測信號的示意圖。。 Figure 3 is a schematic diagram of the first sensing signal of the present invention. .
第4圖為本發明第二感測信號的示意圖。 Figure 4 is a schematic diagram of the second sensing signal of the present invention.
第5圖為本發明第三感測信號的示意圖。 Figure 5 is a schematic diagram of a third sensing signal of the present invention.
如第2圖所示，本發明掃描投射觸控裝置2，包括一掃描機構10、一不可見光源21、一半反射鏡22、一第一感光單元23、一第二感光單元24、一震動感測單元25及一微處理器26所組成；掃描機構10包括一掃描單元11、一掃描鏡12及一可見光源13。 As shown in FIG. 2, the scanning projection touch device 2 of the present invention includes a scanning mechanism 10, an invisible light source 21, a half mirror 22, a first photosensitive unit 23, a second photosensitive unit 24, and a sense of vibration. The measuring unit 25 and a microprocessor 26 are formed. The scanning mechanism 10 includes a scanning unit 11, a scanning mirror 12 and a visible light source 13.
本發明的掃描機構10可為上述市面上已有的MEMS掃描機構，掃描單元11為MEMS，掃描鏡12為MSM。本發明的掃描機構10也可為上述市面上已有的包括兩個馬達組成的掃描單元及掃描鏡組成的掃描機構。本發明的可見光源13可為雷射光源。本發明的不可見光源21可為紅外線光源或紫外線光源。 The scanning mechanism 10 of the present invention may be a MEMS scanning mechanism already available on the market, the scanning unit 11 is a MEMS, and the scanning mirror 12 is an MSM. The scanning mechanism 10 of the present invention may also be a scanning mechanism comprising a scanning unit composed of two motors and a scanning mirror which are commercially available. The visible light source 13 of the present invention can be a laser source. The invisible light source 21 of the present invention may be an infrared light source or an ultraviolet light source.
可見光源13及不可見光源21分別置於半反射鏡22的側邊。半反射鏡22置於掃描鏡12的側邊。可見光源13及不可見光源21發射的可見光131及不可見光211分別穿透半反射鏡22及被半反射鏡22反射，然後同一路徑分別射至掃描鏡12；掃描單元11帶動掃描鏡12將可見光131及不可見光211在一投影面14上，由左至右，由上至下進行掃描，使投影面14顯出對應於可見光源13射出的影像。 The visible light source 13 and the invisible light source 21 are placed on the sides of the half mirror 22, respectively. The half mirror 22 is placed on the side of the scanning mirror 12. The visible light 131 and the invisible light 211 emitted by the visible light source 13 and the invisible light source 21 respectively penetrate the half mirror 22 and are reflected by the half mirror 22, and then the same path respectively is incident on the scanning mirror 12; the scanning unit 11 drives the scanning mirror 12 to emit visible light. The 131 and the invisible light 211 are scanned on the projection surface 14 from left to right and from top to bottom, so that the projection surface 14 is displayed corresponding to the image emitted from the visible light source 13.
第一感光單元23及震動感測單元25分別置於投影面14的邊緣141；第一感光單元23也可置投影面14的邊緣141的外側。掃描鏡12及第二感光單元24置於投影面14的前方。 The first photosensitive unit 23 and the shock sensing unit 25 are respectively placed at the edge 141 of the projection surface 14; the first photosensitive unit 23 can also be placed outside the edge 141 of the projection surface 14. The scanning mirror 12 and the second photosensitive unit 24 are placed in front of the projection surface 14.
第一感光單元23用以感測一物件27接觸或鄰近投影面14的一觸點271時，反射掃描鏡12掃描投影面14的不可見光211，而在掃描鏡12掃描投影面14的一掃描週期(0.03秒)內感測到一光強度較強的第一感測信號231，如第3圖所示。在一掃描週期內出現第一感測信號231的時間對應於觸點271的座標。第一感光單元23只能感測接觸或十分鄰近投影面14的物件27所反射的不可見光211，所以第一感測信號231在一掃描週期內出現的時間長度較短。 When the first photosensitive unit 23 is used to sense an object 27 contacting or adjacent to a contact 271 of the projection surface 14, the reflective scanning mirror 12 scans the invisible light 211 of the projection surface 14 and scans the scanning surface 12 of the scanning surface 12 A first sensing signal 231 having a stronger light intensity is sensed during the period (0.03 seconds), as shown in FIG. The time at which the first sensed signal 231 occurs within one scan period corresponds to the coordinates of the contact 271. The first photosensitive unit 23 can only sense the invisible light 211 reflected by the object 27 that is in contact with or very close to the projection surface 14, so that the first sensing signal 231 appears for a short period of time in one scanning period.
震動感測單元25用以感測一物件27碰觸投影面14的一觸點271時，使投影面14產生的震動，而在掃描鏡12掃描投影面14的一掃描週期內感測到一震動強度較強的第二感測信號251，如第4圖所示。在一掃描週期內出現第二感測信號251的時間對應於觸點271的座標。 The vibration sensing unit 25 senses the vibration generated by the projection surface 14 when an object 27 touches a contact 271 of the projection surface 14 , and senses one scan period of the scanning mirror 12 scanning the projection surface 14 . The second sensing signal 251 having a strong vibration intensity is as shown in FIG. The time at which the second sensed signal 251 occurs within one scan period corresponds to the coordinates of the contact 271.
第二感光單元24用以感測物件27在投影面14前方時，反射掃描鏡12掃描投影面14的不可見光211，而在掃描鏡12掃描投影面14的一掃描週期內感測到一光強度較強的第三感測信號241，如第5圖所示。在一掃描週期內出現第三感測信號241的時間對應於物件27在投影面14前方的形狀及位置資訊。第三感測信號241出現的時間長度較第一感測信號231長。 The second photosensitive unit 24 is configured to sense that the object 27 is in front of the projection surface 14 , and the reflective scanning mirror 12 scans the invisible light 211 of the projection surface 14 , and a light is sensed during a scanning period in which the scanning mirror 12 scans the projection surface 14 . The third sensing signal 241 is stronger, as shown in FIG. The time at which the third sensing signal 241 appears during a scan period corresponds to the shape and position information of the object 27 in front of the projection surface 14. The third sensing signal 241 appears for a longer length of time than the first sensing signal 231.
第一感光單元23、第二感光單元24及震動感測單元25的感測信號可分別透過有線傳輸方式或無線傳輸方式傳送至微處理器26。掃描單元11帶動掃描鏡12的掃描座標可透過有線傳輸方式或無線傳輸方式傳送至微處理器26。 The sensing signals of the first photosensitive unit 23, the second photosensitive unit 24, and the vibration sensing unit 25 can be transmitted to the microprocessor 26 through a wired transmission method or a wireless transmission method, respectively. The scanning unit 11 drives the scanning coordinates of the scanning mirror 12 to be transmitted to the microprocessor 26 through a wired transmission method or a wireless transmission method.
當物件27接觸或鄰近投影面14的一觸點271時，第一感光單元23 將會感測到被物件27反射掃描鏡12掃描投影面14的不可見光211，而在掃描鏡12掃描投影面14的一週期內感測到一光強度較強的第一感測信號231，如第3圖所示；微處理器26偵測到第一感光單元23傳送的第一感測信號231，依據第一感測信號231在一掃描週期出現的時間，確認掃描單元11在該時間帶動掃描鏡12的掃描座標，得到對應於觸點271的位置資訊，而輸出一對應的第一觸控信號。 When the object 27 contacts or is adjacent to a contact 271 of the projection surface 14, the first photosensitive unit 23 It will be sensed that the object 27 reflects the invisible light 211 of the scanning surface 12 of the scanning mirror 12, and a first sensing signal 231 with a strong light intensity is sensed during the scanning of the scanning surface 12 by the scanning mirror 12. As shown in FIG. 3, the microprocessor 26 detects the first sensing signal 231 transmitted by the first photosensitive unit 23, and confirms that the scanning unit 11 is at the time according to the first sensing signal 231 at the time of the scanning period. The scanning coordinates of the scanning mirror 12 are driven to obtain position information corresponding to the contacts 271, and a corresponding first touch signal is output.
當物件27碰觸投影面14的一觸點271時，震動感測單元25將會感測到投影面14被碰觸產生的震動，而在掃描鏡12掃描投影面14的一掃描週期內感測到一震動強度較強的第二感測信號251，如第4圖所示；微處理器26偵測到震動感測單元25傳送的第二感測信號251，依據不同強度的第二感測信號251輸出對應的第二觸控信號，例如依據不同強度的第二感測信號251輸出對應不同音量的聲音。 When the object 27 touches a contact 271 of the projection surface 14, the vibration sensing unit 25 will sense the vibration generated by the collision of the projection surface 14, and the scanning mirror 12 scans the projection surface 14 for a scanning period. A second sensing signal 251 having a strong vibration intensity is detected, as shown in FIG. 4; the microprocessor 26 detects the second sensing signal 251 transmitted by the vibration sensing unit 25, according to the second sense of different intensities. The measurement signal 251 outputs a corresponding second touch signal, for example, a sound corresponding to a different volume is output according to the second sensing signal 251 of different intensities.
當物件27在投影面14前方時，第二感光單元24將會感測到被物件27反射掃描鏡12掃描投影面14的不可見光211，而在掃描鏡12掃描投影面14的一週期內感測到一光強度較強的第三感測信號241，如第5圖所示。在一掃描週期內出現第三感測信號241的時間對應於物件27在投影面14前方的位置資訊；微處理器26偵測到第二感光單元24傳送的第三感測信號241，依據第三感測信號241在一掃描週期出現的時間，確認物件27在投影面14前方的形狀及位置資訊，而輸出一對應的互動信號，例如可依據浮在投影面14前方的手勢變化輸出對應的互動信號。 When the object 27 is in front of the projection surface 14, the second photosensitive unit 24 will sense that the object 27 reflects the invisible light 211 of the scanning mirror 12 scanning the projection surface 14, and the scanning mirror 12 scans the projection surface 14 for a period of time. A third sensing signal 241 having a stronger light intensity is detected, as shown in FIG. The time when the third sensing signal 241 appears in a scanning period corresponds to the position information of the object 27 in front of the projection surface 14; the microprocessor 26 detects the third sensing signal 241 transmitted by the second photosensitive unit 24, according to the The three sensing signals 241 confirm the shape and position information of the object 27 in front of the projection surface 14 at a time when the scanning period occurs, and output a corresponding interactive signal, for example, according to the change of the gesture floating in front of the projection surface 14 Interactive signal.
本發明的第一感光單元23、第二感光單元24及震動感測單元25可 單獨使用或包含至少兩個合併使用，以配合各種不同的觸控需求。 The first photosensitive unit 23, the second photosensitive unit 24 and the vibration sensing unit 25 of the present invention can be Used alone or in combination with at least two to match a variety of different touch needs.
如第2、3、4、5圖所示，當本發明同時使用第一感光單元23、第二感光單元24及震動感測單元25，且物件27碰觸投影面14的一觸點271時，第一感光單元23、第二感光單元24及震動感測單元25將在接近同一時間分別感測到第一感測信號231、第三感測信號241及第二感測信號251，微處理器26依據第一感測信號231、第三感測信號241及第二感測信號251輸出對應的第一觸控信號、第二觸控信號及互動信號。 As shown in the second, third, fourth, and fifth diagrams, when the first photosensitive unit 23, the second photosensitive unit 24, and the vibration sensing unit 25 are simultaneously used in the present invention, and the object 27 touches a contact 271 of the projection surface 14, The first photosensitive unit 23, the second photosensitive unit 24, and the vibration sensing unit 25 respectively sense the first sensing signal 231, the third sensing signal 241, and the second sensing signal 251 at approximately the same time, and micro processing The device 26 outputs the corresponding first touch signal, second touch signal and interaction signal according to the first sensing signal 231, the third sensing signal 241 and the second sensing signal 251.
本發明利用較便宜的感光單元及一個不可見光源，配合已知的掃描機構，就能達成感測觸點座標的效果，結構簡單，成本低，且不需利用三角公式計算觸點座標，較省時間。 The invention utilizes a cheaper photosensitive unit and an invisible light source, and cooperates with a known scanning mechanism to achieve the effect of sensing the contact coordinates, has a simple structure, low cost, and does not need to calculate the contact coordinates by using a triangular formula. save time.
本發明利用較便宜的感光單元、震動感測單元及一個不可見光源，配合已知的掃描機構，就能感測物件在投影面前方的位置資訊或物件碰觸投影面產生的震動資訊，而分別輸出對應的觸控信號。 The invention utilizes a cheaper photosensitive unit, a vibration sensing unit and an invisible light source, and cooperates with a known scanning mechanism to sense the position information of the object in front of the projection surface or the vibration information generated by the object touching the projection surface. The corresponding touch signals are respectively output.
以上所記載者，僅為利用本發明技術內容之實施例，任何熟悉本項技藝者運用本發明所為之修飾、變化，皆屬本創作所主張之專利範圍。 The above descriptions are only examples of the use of the technical content of the present invention, and any modifications and variations made by those skilled in the art using the present invention are within the scope of the patent claimed.
10‧‧‧掃描機構 10‧‧‧Scanning agency
11‧‧‧掃描單元 11‧‧‧Scan unit
12‧‧‧掃描鏡 12‧‧‧ Scanning mirror
13‧‧‧可見光源 13‧‧‧ Visible light source
131‧‧‧可見光 131‧‧‧ Visible light
14‧‧‧投影面 14‧‧‧Projection surface
141‧‧‧邊緣 141‧‧‧ edge
2‧‧‧掃描投射觸控裝置 2‧‧‧Scan projection touch device
21‧‧‧不可見光源 21‧‧‧Invisible light source
211‧‧‧不可見光 211‧‧‧Invisible light
22‧‧‧半反射鏡 22‧‧‧Half mirror
23‧‧‧第一感光單元 23‧‧‧First photosensitive unit
24‧‧‧第二感光單元 24‧‧‧Second photosensitive unit
25‧‧‧震動感測單元 25‧‧‧Vibration sensing unit
26‧‧‧微處理器 26‧‧‧Microprocessor
27‧‧‧物件 27‧‧‧ objects
271‧‧‧觸點 271‧‧‧Contacts
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| TW101138187A TWI465989B (en) | 2012-10-17 | 2012-10-17 | The projection touch apparatus |
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| TW101138187A TWI465989B (en) | 2012-10-17 | 2012-10-17 | The projection touch apparatus |
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| TW201416944A TW201416944A (en) | 2014-05-01 |
| TWI465989B true TWI465989B (en) | 2014-12-21 |
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| TWI531954B (en) | 2014-11-14 | 2016-05-01 | 中強光電股份有限公司 | Touch and gesture control system and touch and gesture control method |
| CN110119227B (en) * | 2018-02-05 | 2022-04-05 | 英属开曼群岛商音飞光电科技股份有限公司 | Optical touch device |
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| CN201000620Y (en) * | 2006-10-16 | 2008-01-02 | 北京威亚视讯科技有限公司 | Projection based touch detecting system |
| CN102207661A (en) * | 2010-03-29 | 2011-10-05 | 影来腾贸易(上海)有限公司 | Projection type light-uniforming system for touch screen |
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| CN202306000U (en) * | 2011-09-29 | 2012-07-04 | 上海富伸光电有限公司 | Scanning light source module and touch control screen |
| CN102693044A (en) * | 2011-03-24 | 2012-09-26 | 凌阳创新科技股份有限公司 | Optical touch system and optical touch method |
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| CN201000620Y (en) * | 2006-10-16 | 2008-01-02 | 北京威亚视讯科技有限公司 | Projection based touch detecting system |
| CN102207661A (en) * | 2010-03-29 | 2011-10-05 | 影来腾贸易(上海)有限公司 | Projection type light-uniforming system for touch screen |
| CN102331884A (en) * | 2010-07-13 | 2012-01-25 | 华宝通讯股份有限公司 | Projecting system with touch control projecting images |
| CN102693044A (en) * | 2011-03-24 | 2012-09-26 | 凌阳创新科技股份有限公司 | Optical touch system and optical touch method |
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