Method for operating vehicle headlight for vehicle, particularly motor vehicle, involves regulating or controlling semiconductor light source, particularly light emitting diode, by pulse width modulated signal

摘要

The method involves regulating or controlling a semiconductor light source, particularly a light emitting diode (18), by a pulse width modulated signal. A pulse duty factor of the pulse width modulated signal is changed on the basis of the speed of a vehicle. An independent claim is also included for a headlight for a vehicle, particularly a motor vehicle, which has multiple semiconductor light sources for generating different light distributions.