Patent ID: 7967485

Claim:
An apparatus for automatically adjusting horizontally a direction of a light axis of a vehicle headlight comprising: a steering angle sensor detecting a steering angle of a steering wheel of a vehicle; a swivel control unit performing a swivel control by which said direction of said light axis of said vehicle headlight is adjusted horizontally depending on said steering angle of said steering wheel; and an abnormality detecting unit detecting abnormality associated with said apparatus; wherein, after detection of abnormality associated with said apparatus by said abnormality detecting unit, said swivel control unit continues performing said swivel control until said light axis is returned to a predetermined initial direction in order to avoid abrupt change of said direction of said light axis, said swivel control unit halting said swivel control after said light axis is returned to said predetermined initial direction, a rate at which said light axis is returned to a straightforward direction or said predetermined initial direction upon detection of said abnormality is varied according to a speed of the vehicle.