Invention Grant
- Patent Title: Light emitting device
-
Application No.: US15234249Application Date: 2016-08-11
-
Publication No.: US10026876B2Publication Date: 2018-07-17
- Inventor: Shoji Hosokawa , Sadakazu Wakui
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan-shi
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan-shi
- Agency: Hunton Andrews Kurth LLP
- Priority: JP2015-163043 20150820; JP2016-137685 20160712
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L33/32

Abstract:
A light emitting device that includes a light emitting element having a peak emission wavelength at 400-480 nm and a fluorescent member can be provided. The fluorescent member includes a first fluorescent material that includes a nitride containing alkaline-earth metal, alkali metal, aluminum and europium, a second fluorescent material that includes a nitride containing alkaline-earth metal, aluminum, silicon and europium, and a third fluorescent material having a peak emission wavelength in a range of from 500 nm to 560 nm. A content of the first fluorescent material to a total content of the first fluorescent material and the second fluorescent material is from 5% by mass to 95% by mass.
Public/Granted literature
- US20170054059A1 LIGHT EMITTING DEVICE Public/Granted day:2017-02-23
Information query
IPC分类: