Patent · US Active

Optical converter for high luminances

US9738828B2 · kind B2 · utility

2Cited by

0References

24Claims

0Family size

Assignee

Schott AG · DE

Inventors

Volker Hagemann · Klein-Winternheim, DE
Peter Nass · Mainz, DE
Yvonne Menke · Mainz, DE
Bernd Hoppe · Ingelheim am Rhein, DE
Wolfram Beier · Essenheim, DE
Rainer Liebald · Nauheim, DE
Niko Schultz · Essenheim, DE
Guenter Weidmann · Flonheim, DE
Hauke Esemann · Wörrstadt, DE

Key dates

Filing date	Apr 25, 2014
Grant date	Aug 22, 2017
Priority date	—
Expiry date	Dec 23, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An optical converter for producing colored or white light from blue excitation light is provided. The converter has good scattering properties to be able to produce nearly white light from the scattered blue light components and the scattered, converted yellow light components. The optical converter includes material including one or more of a YAG ceramic, a LuAG ceramic, and a magnesium-aluminum ceramic exhibiting strong scattering.

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