| 摘要 |
<p>Method for touch-free operation, in which light is transmitted and the reflected component of the transmitted light is received, in order to active a function. The light is sent from at least two directions, in such a way that the light beams intersect at essentially the desired operating area and the desired intended function is activated only once the light beams are detected from the reflected light. The invention also relates to a device for implementing the method.</p> |
