USER INTERFACE FOR WHITE GOODS AND ASSOCIATED MULTI-CHANNEL PROXIMITY SENSORS

摘要

A touch sensor including a housing, a light guide mounted in the housing the light guide including an aperture through which light exits and enters the light guide, and an inner surface facing the interior of the housing, the sensor further includes two light emitters mounted in the housing for emitting light beams into the light guide that exit the aperture at diverging angles and a light receiver mounted in the housing for receiving reflected light beams entering the aperture at an angle of incidence different than the diverging angles.