US 11,987,169 B2
Optical axis adjustment device
Kentarou Yamasaki, Tokyo (JP); and Noriaki Asano, Tokyo (JP)
Assigned to SUBARU CORPORATION, Tokyo (JP)
Filed by SUBARU CORPORATION, Tokyo (JP)
Filed on Sep. 19, 2022, as Appl. No. 17/947,522.
Claims priority of application No. 2021-159759 (JP), filed on Sep. 29, 2021.
Prior Publication US 2023/0102156 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B60Q 1/06 (2006.01); B60Q 1/08 (2006.01)
CPC B60Q 1/06 (2013.01) [B60Q 1/08 (2013.01); B60Q 2300/05 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An optical axis adjustment device for a headlamp unit to be mounted in a vehicle, the optical axis adjustment device being configured to adjust an optical axis of the headlamp unit, the optical axis adjustment device comprising:
an engine temperature acquirer configured to acquire a temperature in an engine compartment of the vehicle;
a displacement amount calculator configured to calculate a displacement amount of the optical axis on a basis of the temperature;
a speed information acquirer configured to acquire speed information including a travel speed and a travel time of the vehicle; and
an optical axis adjuster configured to adjust the optical axis of the headlamp unit on a basis of the displacement amount and the speed information.