US 12,467,593 B2
Lighting apparatus and lamp comprising same
Kwang Hyun Ko, Seoul (KR); Moo Ryong Park, Seoul (KR); and Dong Hyun Lee, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Filed by LG INNOTEK CO., LTD., Seoul (KR)
Filed on Sep. 23, 2024, as Appl. No. 18/893,345.
Application 18/893,345 is a continuation of application No. 18/026,963, granted, now 12,129,977, previously published as PCT/KR2021/013663, filed on Oct. 6, 2021.
Claims priority of application No. 10-2020-0129102 (KR), filed on Oct. 7, 2020.
Prior Publication US 2025/0012413 A1, Jan. 9, 2025
Int. Cl. F21S 4/20 (2016.01); F21S 43/14 (2018.01); F21S 43/239 (2018.01); F21S 43/243 (2018.01); F21S 43/249 (2018.01); F21S 43/31 (2018.01); F21V 7/04 (2006.01); F21V 7/09 (2006.01); F21V 8/00 (2006.01)
CPC F21S 4/20 (2016.01) [F21S 43/14 (2018.01); F21S 43/239 (2018.01); F21S 43/243 (2018.01); F21S 43/249 (2018.01); F21S 43/31 (2018.01); F21V 7/043 (2013.01); F21V 7/09 (2013.01); G02B 6/0045 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lighting apparatus comprising:
a substrate;
a plurality of light emitting devices arranged in a first direction on the substrate;
a resin layer disposed on the substrate; and
a reflective layer disposed on an upper surface of the resin layer,
wherein the resin layer is disposed between the substrate and the reflective layer,
wherein the resin layer includes first and second side surfaces spaced apart in a second direction orthogonal to the first direction and third and fourth side surfaces spaced apart in the first direction,
wherein the resin layer includes a plurality of protruding portions disposed along the first side surface in the first direction,
wherein the plurality of protruding portions protrudes further outward than a first end of the first side surface adjacent to the third side surface and protrudes further outward than a second end of the first side surface adjacent to the fourth side surface,
wherein each of the plurality of protruding portions faces each of the plurality of light emitting devices,
wherein an outer side surface of the plurality of protruding portions faces the light emitting devices and reflects light from the light emitting devices,
wherein each of the plurality of protruding portions is disposed between the reflective layer and the substrate,
wherein at least one of the protruding portions has a maximum length in the second direction shorter than a maximum length in the first direction,
wherein the maximum length of the protruding portion in the first direction is greater than a thickness of the resin layer,
wherein each of the protruding portions includes an extension portion having sides that are spaced apart in the first direction and that extends by a first length in the second direction, and a convex portion having a curved surface extending from respective ends of the sides of the extension portion,
wherein a distance between the pair of extension portions in the first direction is a maximum length of the protruding portion in the first direction, and
wherein the first length of the pair of extension portions in the second direction is greater than a maximum distance between adjacent convex portions in the first direction.