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Photo-sensor type touch device and light module and optical lens for the photo-sensor type touch device
Photo-sensor type touch device and light module and optical lens for the photo-sensor type touch device
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机译:光电传感器型触摸装置,光模块及用于该光电传感器型触摸装置的光学透镜
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摘要
A photo-sensor type touch device includes a screen, two light modules, a sensor, and a calculating unit. The screen has a displaying region to show images thereon. The light module emits linear invisible light to the displaying region. The invisible light is substantially perpendicular to a normal of the displaying region. The sensor senses a change of the invisible light on the displaying region when an object approaches the displaying region, and sends a signal out. The calculating unit is electrically connected to the sensor to receive the signal and calculate the signal to obtain a location of the object on the displaying region.
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