Patent · US Active

Red-emitting luminescent substance and light source comprising such a luminescent substance

US7791265B2 · kind B2 · utility

6Cited by

3References

12Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Tim Fiedler · Birkenfeld, DE
Wolfram Hempel · Germering, DE
Frank Jermann · Königsbrunn, DE

Key dates

Filing date	Nov 29, 2006
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Nov 29, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/8512
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources.

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