A method for determining the specific light component in reflected light

The invention relates to a method for determining the specific light component (E) in reflected light (R), which consists of an illumination area (110) ahead of a vehicle (100) in the direction of the vehicle (100) is scattered back, comprising the steps of: - emitting its own light (E) of a Ausleuchtvorrichtung (20) of the vehicle (100) - generating at least one of the self-light (E) specific parameter in the transmitted intrinsic light (E), - receiving reflection light (R) with a sensor device (30), - analyzing the reflected light (R) with respect to the at least one specific parameter of the self-generated light (E).