US 11,993,333 B2
Vehicle lamp
Yosuke Menjo, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Appl. No. 17/784,945
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
PCT Filed Nov. 18, 2020, PCT No. PCT/JP2020/043069
§ 371(c)(1), (2) Date Jun. 13, 2022,
PCT Pub. No. WO2021/124779, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 2019-226553 (JP), filed on Dec. 16, 2019; and application No. 2019-226554 (JP), filed on Dec. 16, 2019.
Prior Publication US 2023/0011436 A1, Jan. 12, 2023
Int. Cl. B62J 6/023 (2020.01); B62J 45/415 (2020.01); F21V 14/04 (2006.01)
CPC B62J 6/023 (2020.02) [B62J 45/4151 (2020.02); F21V 14/04 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vehicle lamp provided in a vehicle that travels at a corner by tilting a vehicle body toward a turn direction, the vehicle lamp comprising:
a light source;
an optical member configured to form a predetermined light distribution pattern by radiating light from the light source to a front side of the lamp; and
a controller configured to adjust the predetermined light distribution pattern so as to include a first non-irradiation range in which an object outside the vehicle is not irradiated with the light when the object is detected,
wherein the controller is configured to define the first non-irradiation range based on a case where the vehicle body is in a straight traveling state, and
wherein the controller is configured to, based on a determination that when the vehicle body is in a cornering state,
acquire a coordinate of height information of the object with respect to a road coordinate system, in accordance with a tilting state of the vehicle body,
define a second non-irradiation range narrower than the first non-irradiation range, based on the coordinate of the height information, and
adjust the predetermined light distribution pattern so as to include the second non-irradiation range instead of the first non-irradiation range by converting, from the road coordinate system to a vehicle body coordinate system, the coordinate of the height information based on the tilting state of the vehicle body, and by specifying a partial pattern corresponding to the converted coordinate of the height information, the partial pattern being included in the predetermined light distribution pattern.