Patent ID: 7552001

Claim:
An irradiation direction controller for a vehicle lamp comprising: a vehicle height sensor that detects a vehicle height value of at least a part of a vehicle; a leveling controller that calculates a pitch angle of the vehicle based on the vehicle height value and controls an irradiation direction of the vehicle lamp in correspondence with the pitch angle, the leveling controller including: a vehicle height value initialization section to obtain a difference between a vehicle height value detected by the vehicle height sensor and a design vehicle height, and to store the difference as an initialized vehicle height value; an initialization determination section that determines whether the vehicle height value is initialized or not; and a leveling angle setting section that sets the leveling angle based on an the initialized vehicle height value or sets the leveling angle to a predetermined leveling angle, in accordance with the result of determination by the initialization determination section; and an aiming device capable of adjusting the irradiation direction of the vehicle lamp independently from the leveling controller, and capable of performing an aiming adjustment on the vehicle lamp in which the leveling angle is set by the leveling angle setting section.