Patent ID: 7057504

Claim:
A vehicle headlamp apparatus comprising: optical axis direction changing means for changing the direction of a light-emitting optical axis of a headlamp of a vehicle; a sub-control circuit provided integrally on the headlamp for controlling the optical axis direction changing means; and a main control circuit for sending out to the sub-control circuit a control signal for changing the direction of the optical axis of the headlamp, wherein the sub-control circuit comprises a power-on resetting circuit for implementing a reset by switching on and off a power supply, wherein the main control circuit comprises power supply control means for temporarily cutting off the supply of power to the sub-control circuit when the main control circuit detects an abnormality in the sub-control circuit; and wherein the main control circuit causes the power supply control means to continue to maintain the power supply cut off state when the main control circuit repeatedly detects an abnormality in the sub-control circuit after the power supply control means has been activated.