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:
Apr. 21, 2020
Filed:
Nov. 25, 2014
Nichia Corporation, Anan-shi, Tokushima, JP;
Yuta Oka, Tokushima, JP;
NICHIA CORPORATION, Anan-shi, JP;
Abstract
Provided is a light emitting device capable of further improving light extraction efficiency while reducing leakage of wavelength unconverted light or color unevenness of the light. The light emitting device includes: a base member; a light emitting element mounted on the base member; a light reflecting member disposed at a side surface side of the light emitting element; and a light-transmissive stacked layer covering at least an upper surface of the light emitting element, wherein the light-transmissive stacked layer includes a first light-transmissive layer, a first wavelength conversion layer disposed on the first light-transmissive layer, a second light-transmissive layer disposed on the first wavelength conversion layer, and a second wavelength conversion layer disposed on the second light-transmissive layer.