Lichtemittierende Vorrichtung und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP3276681

Aktenzeichen

EP17183735

Anmeldetag

28. Juli 2017

Veröffentlichung

19. August 2020

Erteilung

19. August 2020

Rechtsraum

EP

IPC

H01L33/50

Abstract

A light emitting device includes a light emitting element to emit a first light having a first peak wavelength. A second wavelength converting member contains a second phosphor to convert the first light into a third light having a third peak wavelength longer than the first peak wavelength and shorter than a second peak wavelength. The second wavelength converting member includes a portion in which the second wavelength converting member has a first concentration of the second phosphor at a height of an upper surface of the light emitting element in a height direction and a second concentration of the second phosphor at a height of a lower surface of the light emitting element in the height direction. The second concentration is higher than the first concentration such that the second phosphor reflects the second light.

Anmelder

Firma

NICHIA CORPORATION

Land

🇯🇵 Japan

Fachgebiete