US 12,442,509 B2
Light-emitting module with cover member and light-transmissive member having higher hardness than cover member
Shinya Matsuoka, Anan (JP); and Tsuyoshi Okahisa, Tsukushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Sep. 12, 2024, as Appl. No. 18/883,561.
Claims priority of application No. 2023-153914 (JP), filed on Sep. 20, 2023; and application No. 2024-059440 (JP), filed on Apr. 2, 2024.
Prior Publication US 2025/0093012 A1, Mar. 20, 2025
Int. Cl. F21V 3/10 (2018.01); F21V 3/04 (2018.01); F21V 5/04 (2006.01); F21Y 105/16 (2016.01); F21Y 115/10 (2016.01); F21Y 115/30 (2016.01)
CPC F21V 3/10 (2018.02) [F21V 3/049 (2013.01); F21V 5/048 (2013.01); F21Y 2105/16 (2016.08); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08)] 21 Claims
OG exemplary drawing
 
1. A light-emitting module comprising:
a light source;
a lens located over the light source and configured to transmit light from the light source; and
a cover member located over the lens and having a lower surface on which the light is to be incident and an upper surface from which the light is to be emitted, wherein the lower surface of the cover member comprises:
a first region on which the light from the light source after being transmitted through the lens is to be incident, and
a second region located around the first region, wherein a light diffusivity of the second region is higher than a light diffusivity of the first region, and wherein the light diffusivity of the second region increases from an inner side toward an outer side of the second region in a top view; and
a light-transmissive member covering the upper surface of the cover member and having a higher hardness than a hardness of the cover member.