Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2023135554
Kind Code:
A
Abstract:
To provide a light emitting device capable of individually monitoring intensity of light emitted from a plurality of light emitting elements.SOLUTION: A light-emitting device includes a first light-emitting element emitting first light in a first direction, a second light-emitting element emitting second light in a first direction, a substrate, and a cap. The light-emitting device has: a light-extracting surface through which the first light and the second light emitted from the first light-emitting element and the second light-emitting element pass; a package forming a closed space in which the first light-emitting element and the second light-emitting element are placed; one or more optical members positioned away from the light-extracting surface in the first direction and multiplying the first light and the second light; and one or more photodetectors positioned away from the light-extracting surface in the first direction and receiving the first and second light.SELECTED DRAWING: Figure 2
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Inventors:
HASHIMOTO TAKUYA
MIURA SOICHIRO
MIURA SOICHIRO
Application Number:
JP2022040826A
Publication Date:
September 28, 2023
Filing Date:
March 15, 2022
Export Citation:
Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
H01S5/02325; H01S5/02253; H01S5/40
Attorney, Agent or Firm:
Seiji Okuda
Shuichi Kita
Akiko Miyake
Yu Tanaka
Shigeyasu Murase
Hiroyuki Takeda
Shuichi Kita
Akiko Miyake
Yu Tanaka
Shigeyasu Murase
Hiroyuki Takeda