Patent · US Expired

Conversion LED having a phosphor component based on an agglomeration of phosphor particles and pores

US7126265B2 · kind B2 · utility

5Cited by

3References

15Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Frank Jermann · Königsbrunn, DE
Martin Zachau · Geltendorf, DE

Key dates

Filing date	May 24, 2004
Grant date	Oct 24, 2006
Priority date	—
Expiry date	Oct 20, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH01L2224/73265
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The LED has phosphor particles (2) with a mean phosphor particle size d50 selected from the range of from 0.1 μm, inclusive, to 1.5 μm, inclusive, in particular the phosphor particles having primary particles (4) with a mean particle size (5) selected from the range of from 0.1 μm, inclusive, to 1.0 μm, inclusive. The primary particles, which comprise, for example, an yttrium aluminum garnet (Y3Al5O12) doped with cerium, are agglomerated to form the phosphor particles.

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