Optical touch screen systems using reflected light

G - Physics – 06 – F

Patent

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Details

G06F 3/042 (2006.01)

Patent

CA 2749584

A touch screen system, including a near-infrared transparent screen including a plurality of reflective elements embedded therein, a circuit board including circuitry for controlled selective activation of electronic components connected thereto, at least one light source connected to the circuit board, for emitting light, and at least one light detector connected to the circuit board, for detecting light emitted by the at least one light source and reflected by the reflective elements.

L'invention concerne un système d'écran tactile, qui comporte un écran transparent à infrarouge proche comportant plusieurs éléments réfléchissants qui y sont intégrés, une carte de circuits imprimés comportant des circuits d'activation sélective commandée de composants électroniques qui lui sont reliés, au moins une source lumineuse reliée à la carte de circuits imprimés, pour émettre de la lumière, et au moins un détecteur de lumière relié à la carte de circuits imprimés, pour détecter la lumière émise par au moins une source lumineuse et réfléchie par les éléments réfléchissants.

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