The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Aug. 11, 2016
Nichia Corporation, Anan-shi, Tokushima, JP;
Shoji Hosokawa, Tokushima, JP;
Sadakazu Wakui, Tokushima, JP;
NICHIA CORPORATION, Anan-shi, JP;
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.