Arrangement of luminescent materials, wavelength-converting casting compound and light source

US6998771B2 · kind B2 · utility

Assignee

• OSRAM GmbH · DE

Inventors

• Alexandra Debray · Regensburg, DE
• Gunter Waitl · Regensburg, DE
• Franz Kummer · Munich, DE
• Franz Zwaschka · Ismaning, DE
• Andries Ellens · Munich, DE

Key dates

• Filing date: Sep 24, 2004
• Grant date: Feb 14, 2006
• Expiry date: Sep 24, 2024

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8513
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention proposes an arrangement of luminescent materials for excitation by means of a radiation source and involving the use of a luminescent material having a Ce-activated garnet structure A3B5O12, in which the first component A contains at least one element from the group consisting of Y, Lu, Sc, La, Gd, Sm and Tb and the second component B represents at least one of the elements Al, Ga and In, and a plurality of the luminescent materials are mixed together.