US 12,241,600 B2
Lighting module and lighting device
Young Jae Choi, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/912,144
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Mar. 15, 2021, PCT No. PCT/KR2021/003185
§ 371(c)(1), (2) Date Sep. 16, 2022,
PCT Pub. No. WO2021/187843, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 10-2020-0034332 (KR), filed on Mar. 20, 2020.
Prior Publication US 2023/0135095 A1, May 4, 2023
Int. Cl. F21K 9/69 (2016.01); F21K 9/68 (2016.01); F21S 41/141 (2018.01); F21S 43/14 (2018.01); F21S 43/15 (2018.01); F21S 43/33 (2018.01); F21S 43/40 (2018.01); F21Y 115/10 (2016.01); H01L 25/075 (2006.01); H01L 33/48 (2010.01); H01L 33/52 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01)
CPC F21K 9/69 (2016.08) [F21K 9/68 (2016.08); F21S 43/40 (2018.01); H01L 25/0753 (2013.01); H01L 33/486 (2013.01); H01L 33/52 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); F21S 41/141 (2018.01); F21S 43/14 (2018.01); F21S 43/15 (2018.01); F21S 43/33 (2018.01); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a substrate;
a reflective layer disposed on the substrate;
a light source passing through the reflective layer and disposed on the substrate;
a resin layer disposed on the reflective layer;
an optical pattern disposed on the resin layer;
an air gap portion disposed around the optical pattern; and
a light-transmitting layer disposed outside the air gap portion and including a resin material,
wherein the light source includes a first light emitting device and a second light emitting device spaced apart from the first light emitting device,
wherein the optical pattern includes a first optical pattern disposed on the first light emitting device and a second optical pattern disposed on the second light emitting device,
wherein the first optical pattern and the second optical pattern have different areas,
wherein the resin layer covers the light source,
wherein the first optical pattern overlaps the first light emitting device in a vertical direction and reflects a light emitted through an emission surface of the first light emitting device,
wherein the second optical pattern overlaps the second light emitting device in the vertical direction and reflects a light emitted through an emission surface of the second light emitting device,
wherein the air gap portion is disposed around each of the first and second optical patterns,
wherein the air gap portion and the light-transmitting layer are disposed on the resin layer,
wherein upper surfaces of the first light emitting device and the second light emitting device have different areas,
wherein the emission surfaces of the first light emitting device and the second light emitting device have different areas,
wherein each of the first and second optical patterns has a reflective material, and
wherein each of the first and second optical patterns has regions with different thicknesses.