Intelligent tail light: adaption of brightness using lidar technique

The traffic density on the roads is increasing every day. Therefore, the development of equipment contributing to higher traffic safety deserves particular attention. The perceptibility of automotive lighting and light signals under poor visibility conditions is one of the safety aspects involved. The planned system has the task to ensure that the rear lights are visible to the driver of the vehicle driving behind. Spray, however, as being whirled up by the tires at rain-covered roads also affects the visibility very strongly. Depending on moisture on the road and driving speed, this spray is dragged like a flag of more than 20m behind the vehicle. That is why a measuring principle employing spot-like scanning of only a small measuring volume would not be suitable for this purpose. Thus, a method is needed that can detect the turbidity in a long-extending measuring volume.