US 11,788,702 B2
Headlight module and headlight device
Masashige Suwa, Tokyo (JP); Ritsuya Oshima, Tokyo (JP); and Muneharu Kuwata, Tokyo (JP)
Assigned to MITSUBISHI ELECTRIC CORPORATION, Tokyo (JP)
Appl. No. 17/633,213
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Aug. 30, 2019, PCT No. PCT/JP2019/034232
§ 371(c)(1), (2) Date Feb. 7, 2022,
PCT Pub. No. WO2021/038855, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0299183 A1, Sep. 22, 2022
Int. Cl. F21S 41/265 (2018.01); F21S 41/663 (2018.01); F21S 41/147 (2018.01); F21S 41/27 (2018.01); F21S 41/143 (2018.01)
CPC F21S 41/265 (2018.01) [F21S 41/143 (2018.01); F21S 41/147 (2018.01); F21S 41/27 (2018.01); F21S 41/663 (2018.01)] 18 Claims
OG exemplary drawing
 
1. A headlight module comprising:
a first light source that emits first light; and
a first optical element, wherein
the first optical element includes
a first optical surface that reflects the first light; and
a lens surface that projects illuminating light including the first light reflected by the first optical surface,
an edge part of the first optical surface close to the lens surface includes a first edge part and a second edge part differing from each other in a position in a direction orthogonal to an optical axis of the lens surface,
a position of the second edge part in a direction of the optical axis is closer to the lens surface than a position of the first edge part in the direction of the optical axis
wherein the edge part of the first optical surface close to the lens surface further includes a third edge part connecting the first edge part and the second edge part, and on a plane including the first edge part, the third edge part and the second edge part, the edge part of the first optical surface close to the lens surface has a bent line shape in which the third edge part is bent with respect to the first edge part and the second edge part is bent with respect to the third edge part; and
wherein a shape of a cutoff line of the light distribution pattern of the illuminating light is a shape corresponding to a shape of the edge part of the first optical surface close to the lens surface.