Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2023095356
Kind Code:
A
Abstract:
To improve the light extraction efficiency of a light-emitting device that can emit light of a desired chromaticity.SOLUTION: A light-emitting device includes a light-emitting element that emits first light, a first wavelength conversion member that is arranged on the light-emitting element and has a bottom surface bonded to the light-emitting element, an upper surface opposite the bottom surface, and a side surface connected to the upper surface, and that is excited by the first light and emits second light, a second wavelength conversion member that exposes the top surface of the first wavelength conversion member, covers the side surface, and has a sloping surface from the side surface to the outside, and emits third light when excited by at least one of the first light and the second light, and a first light reflective member covering the sloping surface.SELECTED DRAWING: Figure 4
Inventors:
HAYASHI YUSUKE
SHICHIJO SATOSHI
FUKUTA HIROKI
SHICHIJO SATOSHI
FUKUTA HIROKI
Application Number:
JP2021211186A
Publication Date:
July 06, 2023
Filing Date:
December 24, 2021
Export Citation:
Assignee:
NICHIA KAGAKU KOGYO KK
International Classes:
H01L33/60; H01L33/50
Attorney, Agent or Firm:
Norito Yamao
Keiichi Godou
Keiichi Godou