Patent ID: 6109759
Filing Date: 2000-08-29
Classification: B60Q

Abstract:
An optical beam axis adjustment apparatus of a head lamp for use in vehicle, comprising:stroke sensors for detecting upward and downward movements of a front wheel and a rear wheel;angular detecting means for detecting an inclination angle of a main body of said vehicle in a back and forth direction in response to sensed signals produced from said stroke sensors and to a distance between two axles of said wheels; andan actuator for varying said optical beam axis of said head lamp upwardly and downwardly corresponding to said detected angular data, wherein:said optical beam axis is adjusted during stopping of said vehicle, depending upon average angular detection data which are sensed by said stroke sensors and averaged during a certain period prior to said adjustment, wherein:said optical beam axis is constituted to be readjusted if said inclination angle of said main body varies beyond a certain specified value during said standstill of said vehicle.