Device for monitoring a lateral environment of a multi-touch screen and method for operating a multi-touch screen

摘要

The invention relates to a device (6) for monitoring a lateral environment of a multi-touch screen (2) with a horizontally oriented contact surface (5). In order to improve the operation of such a multi-touch screen (2) and a multi-touch device (1) equipped with it, the device (6) according to the invention has at least one 360 that can be arranged on the bottom below the multi-touch screen (2) -Grad laser scanning unit (7) with horizontally aligned scanning plane (8).