Collection: Infra Red (IR) Touch
In an infrared touchscreen, the screen is lined with infrared light-emitting diodes (LEDs) and photodetectors that form a grid of infrared light beams across the screen. When an object, such as a finger, touches the screen, it blocks some of the beams, and the location of the touch is detected by the photodetectors.
All of these technologies require the touch of a finger or special stylus to work, as they detect changes in electrical properties on the surface of the screen.
![Infra Red (IR) Touch](http://mentor-distribution.co.uk/cdn/shop/collections/ii_foto_touch_optical.jpg?v=1695421083&width=750)