Patent · US Active

LED package with red-emitting phosphors

US9929319B2 · kind B2 · utility

3Cited by

20References

8Claims

0Family size

Assignee

General Electric Company · US

Inventors

Anant Achyut Setlur · Niskayuna, US
Stanton Earl Weaver · Broadalbin, US
Thomas Bert Gorczyca · Schenectady, US
Ashfaqul Islam Chowdhury · Broadview Heights, US
James Edward Murphy · Niskayuna, US
Florencio Garcia · Schenectady, US

Key dates

Filing date	Jun 13, 2014
Grant date	Mar 27, 2018
Priority date	—
Expiry date	Oct 12, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A process for fabricating a LED lighting apparatus includes disposing a composite coating on a surface of a LED chip. The composite coating comprises a first composite layer having a manganese doped phosphor of formula I and a first binder, and a second composite layer comprising a second phosphor composition and a second binder. The first binder, the second binder or both include a poly(meth)acrylate.Ax[MFy]:Mn4+ (I)

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.