US 12,356,776 B2
Light emitting device, method for manufacturing cap, and method for manufacturing light emitting device
Soichiro Miura, Tokushima (JP)
Assigned to NICHIA CORPORATION, Anan (JP)
Filed by NICHIA CORPORATION, Anan (JP)
Filed on Apr. 5, 2022, as Appl. No. 17/713,905.
Claims priority of application No. 2021-064499 (JP), filed on Apr. 6, 2021.
Prior Publication US 2022/0320389 A1, Oct. 6, 2022
Int. Cl. H10H 20/855 (2025.01); H10H 20/01 (2025.01); H10H 20/85 (2025.01)
CPC H10H 20/855 (2025.01) [H10H 20/8506 (2025.01); H10H 20/0363 (2025.01)] 10 Claims
OG exemplary drawing
 
1. A light emitting device comprising:
a light emitting element having a light emitting surface that emits light;
a substrate having a mounting surface on which the light emitting element is disposed; and
a cap surrounding the light emitting element disposed on the substrate, and having a plurality of lateral portions, including
a first lateral portion having a first inner lateral surface and a first outer lateral surface, the first inner lateral surface facing the light emitting element so that the light emitted from the light emitting surface and traveling along an optical axis enters the first lateral portion through the first inner lateral surface and exits from the first outer lateral surface, and
a second lateral portion having a second inner lateral surface and different from the first inner lateral surface, the second inner lateral surface facing the light emitting element,
wherein the first inner lateral surface is inclined at a first inclination angle toward a side where the light emitting element is disposed with respect to a plane perpendicular to the mounting surface, and
the second inner lateral surface is inclined at a second inclination angle larger than the first inclination angle toward a side where the light emitting element is disposed with respect to a plane perpendicular to the mounting surface.