US 12,352,404 B2
Lighting module, lighting device and taillight
Eay Jin Lim, Seoul (KR); and Gyeong Il Jin, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Apr. 8, 2024, as Appl. No. 18/629,187.
Application 18/629,187 is a continuation of application No. 17/925,626, granted, now 11,976,801, previously published as PCT/KR2021/006026, filed on May 13, 2021.
Claims priority of application No. 10-2020-0060350 (KR), filed on May 20, 2020.
Prior Publication US 2024/0255112 A1, Aug. 1, 2024
Int. Cl. F21S 43/242 (2018.01); F21S 43/14 (2018.01); F21S 43/31 (2018.01)
CPC F21S 43/242 (2018.01) [F21S 43/14 (2018.01); F21S 43/31 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a substrate;
a light emitting device disposed on the substrate;
a resin layer disposed on the substrate and covering the light emitting device; and
an optical pattern portion disposed on the resin layer,
wherein the optical pattern portion includes a plurality of convex portions and a plurality of concave portions arranged in first and second directions orthogonal to each other and disposed on an upper surface of the resin layer,
wherein the light emitting device emit light of highest intensity in the first direction,
wherein the first direction is a direction from the light emitting device toward an outer side between the upper surface and a lower surface of the resin layer,
wherein each of the plurality of concave portions has a concave shape from the upper surface of the resin layer toward the substrate,
wherein the optical pattern portion includes a first portion and a second portion on a peripheral region of the first portion,
wherein the first and second portions include concave portions and convex portions,
wherein the first portion overlaps the light emitting device in a vertical direction orthogonal to the first and second directions, and
wherein the plurality of concave portions includes a first region in which concave portions adjacent have a first interval and a second region in which concave portions adjacent have a second interval different from the first interval.