Abstract: A headlamp control apparatus for a vehicle includes a front vehicle detection unit, a speed determination unit, and a headlamp control unit. The headlamp control unit controls lighting of a headlamp, based on a detection by the front vehicle detection unit and a determination by the speed determination unit. The headlamp control unit has: a first mode of varying a region to be illuminated based on a position of a front vehicle when the front vehicle is detected, and switching to high beam when no front vehicle is detected; and a second mode of switching to low beam when the front vehicle is detected, and switching to the high beam when no front vehicle is detected. The headlamp control unit causes the control to transition to the second mode when, in the first mode, the speed determination unit determines that the vehicle's traveling speed has become less than a first speed.

Abstract: An optical axis adjustment device for a headlamp unit to be mounted in a vehicle is configured to adjust an optical axis of the headlamp unit. The optical axis adjustment device includes an engine temperature acquirer, a displacement amount calculator, and an optical axis adjuster. The engine temperature acquirer is configured to acquire a temperature in an engine compartment of the vehicle. The displacement amount calculator is configured to calculate a displacement amount of the optical axis on a basis of the acquired temperature. The optical axis adjuster is configured to adjust the optical axis of the headlamp unit on a basis of the calculated displacement amount.

Abstract: An optical axis adjustment device for a headlamp unit to be mounted in a vehicle is configured to adjust an optical axis of the headlamp unit. and the optical axis adjustment device includes a load information acquirer, a displacement amount calculator, and an optical axis adjuster. The load information acquirer is configured to acquire load information indicating a load on an engine of the vehicle. The displacement amount calculator is configured to calculate a displacement amount of the optical axis on a basis of the load information. The optical axis adjuster is configured to adjust the optical axis of the headlamp unit on a basis of the displacement amount.

Abstract: An optical axis adjustment device for a headlamp unit to be mounted in a vehicle is configured to adjust an optical axis of the headlamp unit. The optical axis adjustment device includes an engine temperature acquirer, a displacement amount calculator, and an optical axis adjuster. The engine temperature acquirer is configured to acquire a temperature in an engine compartment of the vehicle. The displacement amount calculator is configured to calculate a displacement amount of the optical axis on a basis of the acquired temperature. The optical axis adjuster is configured to adjust the optical axis of the headlamp unit on a basis of the calculated displacement amount.

Abstract: Provided is an optical axis adjustment device for a vehicle headlamp. The optical axis adjustment device adjusts an optical axis of a headlamp unit to be mounted in a vehicle, and the optical axis adjustment device includes: an engine temperature acquirer; a displacement amount calculator; a speed information acquirer; and an optical axis adjuster. The engine temperature acquirer acquires a temperature in an engine compartment of the vehicle. The displacement amount calculator calculates a displacement amount of the optical axis based on the acquired temperature. The speed information acquirer acquires speed information including a travel speed and a travel time of the vehicle. The optical axis adjuster adjusts the optical axis of the headlamp unit on a basis of the calculated displacement amount and the acquired speed information.

Abstract: An optical axis adjustment device for a headlamp unit to be mounted in a vehicle is configured to adjust an optical axis of the headlamp unit. the optical axis adjustment device includes an engine temperature acquirer, a displacement amount calculator, an operation information acquirer, and an optical axis adjuster. The engine temperature is configured to acquirer acquire a temperature in an engine compartment of the vehicle. The displacement amount calculator is configured to calculate a displacement amount of the optical axis on a basis of the temperature. The operation information acquirer is configured to acquire operation information indicating an operation status of a cooling device for the engine. The optical axis adjuster is configured to adjust the optical axis of the headlamp unit on a basis of the displacement amount and the operation information.