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    • 5. 发明申请
    • TOUCH DETECTING SYSTEM
    • 触摸检测系统
    • US20120146951A1
    • 2012-06-14
    • US13154452
    • 2011-06-07
    • KUAN-HONG HSIEHHAN-CHE WANGRUEY-SHYANG YOUBIN-GANG DUANGANG LI
    • KUAN-HONG HSIEHHAN-CHE WANGRUEY-SHYANG YOUBIN-GANG DUANGANG LI
    • G06F3/042
    • G06F3/0421
    • A touch detecting system for installation on a touch panel includes two point light sources arranged along one side of a touch panel, an optical sensor disposed at an opposite second side of the touch panel, at least one optical lens, and a processing unit. The at least on optical lens is disposed between the second side of the touch panel and the optical sensor. The at least one optical lens is spaced from the touch panel and the optical sensor, for directing the light from the point light sources to the optical sensor. The optical sensor captures an image which including two dark points of the light from the point light sources when a touch object is on the touch panel. The processing unit determines the position of the touch object on the touch panel based on positions of the dark points in the image.
    • 用于安装在触摸面板上的触摸检测系统包括沿着触摸面板的一侧布置的两点光源,设置在触摸面板的相对的第二侧的光学传感器,至少一个光学透镜和处理单元。 所述至少一个光学透镜设置在所述触摸面板的第二面和所述光学传感器之间。 至少一个光学透镜与触摸面板和光学传感器间隔开,用于将来自点光源的光引导到光学传感器。 当触摸对象在触摸面板上时,光学传感器捕获包括来自点光源的光的两个暗点的图像。 处理单元基于图像中的暗点的位置确定触摸面板上的触摸对象的位置。