Illumination device with at least one led as the light source

US7064480B2 · kind B2 · utility

Assignees

• Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE
• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Dieter Bokor · Taufkirchen, DE
• Andries Ellens · Munich, DE
• Gunter Huber · Schrobenhausen, DE
• Frank Jermann · Königsbrunn, DE
• Manfred Kobusch · Munich, DE
• Michael Ostertag · Munich, DE
• Wolfgang Rossner · Holzkirchen, DE
• Franz Zwaschka · Ismaning, DE

Key dates

• Filing date: Jul 27, 2001
• Grant date: Jun 20, 2006
• Expiry date: Jul 7, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B20/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a luminescence conversion led based illumination deice that emits primarily radiation in the range of from 370 and 430 nm of the optical spectrum (peak wavelength). Said radiation is converted to radiation having a longer wavelength using three luminescent substances that emit in the red, green and blue range.