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Lumio optical three-point touch screen
Photo: company [May 10, 2010]

Lumio has announced a new version of its patented Crystal Touch line of optical touch screens that support three- point touch response in all areas of the screen.

Lumio said it utilizes only two optical sensors, active barrier illumination strips and a specially designed integrated reflective component.

The two physical sensors are mapped onto additional virtual sensors which provide ghost free, three-point touch response without cost of extra sensor hardware, the company said. This can reduce the cost of the system and avoids the issue of introducing a third or fourth sensor at the bottom of the screen which can be exposed to contamination in the field.

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