US 12,221,030 B2
Vehicle light fixture system, light distribution control device, and light distribution control method
Hiroki Yamamoto, Shizuoka (JP); and Motohiro Komatsu, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Filed on Jun. 8, 2023, as Appl. No. 18/331,287.
Application 18/331,287 is a continuation of application No. PCT/JP2021/044658, filed on Dec. 6, 2021.
Claims priority of application No. 2020-207612 (JP), filed on Dec. 15, 2020.
Prior Publication US 2023/0311744 A1, Oct. 5, 2023
Int. Cl. F21S 41/675 (2018.01); B60Q 1/14 (2006.01); F21S 41/255 (2018.01); F21S 41/663 (2018.01); F21W 102/155 (2018.01)
CPC B60Q 1/143 (2013.01) [F21S 41/255 (2018.01); F21S 41/663 (2018.01); B60Q 2300/056 (2013.01); F21W 2102/155 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A vehicle light fixture system comprising:
a low-beam unit adapted to form a low-beam light distribution pattern having a cutoff line and to independently adjust illuminance in a plurality of subareas in the low-beam light distribution pattern arranged below and along the cutoff line; and
a light distribution control device that controls the low-beam unit to form a first reduced illuminance portion in, of the plurality of subareas, the subarea having a position in a vehicle width direction overlapping a position of a vehicle in front in the vehicle width direction, wherein
a range of the first reduced illuminance portion in a height direction is defined based on a pitching range of a driver's vehicle.