User guide

Infrared Touch Screen
Ge ne ral
The infrared (IR) technology is based on the interruption of a grid of IR light
beams before the surface of a screen. The touch frame contains a row of
infrared light emitting diodes (LEDs) and photo transistors, each mounted
on two opposite sides to create a grid of invisible infrared light.
How To Ope ra te
1 Touch Activation
2 Receiver
3 Active Display Area
4 Transmitter
IR light beams are produced and transmitted over the surface of the screen.
The photo sensors accept the beams. When an object (min. 8mm Ø), such
as a finger, enters the hidden grid, it obstructs the beams. One or more
photo sensors detect the absence of light and transmit a signal, that
identifies the x and y coordinates.
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GE NE RAL
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