US 11,859,786 B2
Vehicle lamp using semiconductor light-emitting device
Hooyoung Song, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/781,228
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Feb. 10, 2020, PCT No. PCT/KR2020/001815
§ 371(c)(1), (2) Date May 31, 2022,
PCT Pub. No. WO2021/107272, PCT Pub. Date Jun. 3, 2021.
Claims priority of application No. 10-2019-0156077 (KR), filed on Nov. 28, 2019.
Prior Publication US 2023/0023206 A1, Jan. 26, 2023
Int. Cl. F21S 41/143 (2018.01); F21S 41/25 (2018.01); F21S 41/151 (2018.01)
CPC F21S 41/143 (2018.01) [F21S 41/151 (2018.01); F21S 41/25 (2018.01)] 4 Claims
OG exemplary drawing
 
1. A vehicle lamp comprising:
a substrate;
first and second elongated light sources disposed in parallel on one side of the substrate, and configured to extend along a first direction with respect to the substrate; and
a lens disposed on the one side of the substrate, and configured to extend along the first direction to cover three sides of the first and second elongated light sources,
wherein a cross-section of the lens along an imaginary plane in a second direction and perpendicular to the first and second elongated light sources and the substrate comprises a portion of an ellipse, wherein the second direction is perpendicular to the first direction,
wherein the cross-section of the lens has a shape in which a plurality of portions of an ellipse overlap each other,
wherein the cross-section of the lens comprises:
a first elliptical portion defined in a shape of a portion of the ellipse; and
a second elliptical portion defined in a shape of the portion of the ellipse, wherein the second elliptical portion is configured to overlap the first elliptical portion,
wherein the second elongated light source is disposed at a focal point of the first elliptical portion and the first elongated light source is disposed at a focal point of the second elliptical portion, and
wherein two angles defined between a major axis of each of the first and second elliptical portions and the substrate is each half of a beam angle of either one of the first or second elongated light sources.