Lichtemittierende Vorrichtung

Details

Veröffentlichungs-Nr.

EP3576168

Aktenzeichen

EP19177197

Anmeldetag

29. Mai 2019

Veröffentlichung

31. Mai 2023

Erteilung

31. Mai 2023

Rechtsraum

EP

IPC

H01L33/50

Abstract

A light emitting device includes a light emitting element having an emission peak wavelength in a range of 380 nm to 420 nm and a fluorescent member including at least one fluorescent material that is excited by light from the light emitting element for light emission, wherein a mixture of light from the light emitting element and light from the fluorescent material has a correlated color temperature in a range of 2000 K to 7500 K as measured according to JIS Z8725, and the light emitting device has a spectral distribution in which, when the integral value over a wavelength range of 380 nm to 780 nm is normalized to 100 %, the proportion of an integral value over a wavelength range of 380 nm to 420 nm is 15% or more, and the ratio a as defined by the expression (1) is 0.9 or more and 1.6 or less.

Anmelder

Firma

NICHIA CORPORATION

Land

🇯🇵 Japan

Fachgebiete