US 12,253,709 B2
Lighting module and lighting device having same
Young Jae Choi, Seoul (KR); Dong Hyun Lee, Seoul (KR); Ki Chang Lee, Seoul (KR); Gyeong Ii Jin, Seoul (KR); and Moo Ryong Park, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/439,483
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Mar. 19, 2020, PCT No. PCT/KR2020/003809
§ 371(c)(1), (2) Date Sep. 15, 2021,
PCT Pub. No. WO2020/197173, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 10-2019-0033190 (KR), filed on Mar. 22, 2019.
Prior Publication US 2022/0155512 A1, May 19, 2022
Int. Cl. F21V 8/00 (2006.01)
CPC G02B 6/0045 (2013.01) [G02B 6/0031 (2013.01); G02B 6/0066 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a substrate;
a plurality of light sources disposed on the substrate;
a resin layer disposed on the substrate and the plurality of light sources; and
a first reflective layer disposed on the resin layer,
wherein the resin layer includes an exit surface facing the light sources,
wherein the exit surface of the resin layer includes a plurality of convex portions,
wherein the plurality of light sources is disposed on a virtual curve and includes a first light source and a second light source adjacent to the first light source,
wherein the plurality of convex portions includes a first convex portion facing the first light source and a second convex portion facing the second light source,
wherein a first virtual straight line passing through a center of a circle formed by the first convex portion at a first point where the first light source is in contact with the virtual curve and a second virtual straight line passing through a center of a circle formed by the second convex portion at a second point where the second light source is in contact with the virtual curve is parallel to each other,
wherein an angle between a first tangent line contacting the virtual curve at the first point and the first virtual straight line includes a first obtuse angle.