Conversion material, particularly for a white or colored light souce comprising a semiconductor light source, a method for the production thereof, as well as a light source comprising said conversion material

US9950949B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Rainer Liebald · Nauheim, DE
• Claudia Stolz · Ingelheim am Rhein, DE
• Peter Brix · Mainz, DE
• Simone Monika Ritter · Mainz, DE
• Peter Nass · Mainz, DE
• Dieter Goedeke · Landshut, DE
• Sabine Pichler-Wilhelm · Landshut, DE
• Sabrina Wimmer · Altdorf, DE

Key dates

• Filing date: Apr 29, 2009
• Grant date: Apr 24, 2018
• Expiry date: Mar 22, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C2214/16
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a conversion material, in particular for a white or colored light source comprising a semiconductor light source as primary light source, comprising a matrix glass that, as bulk material, for a thickness d of about 1 mm, has a pure transmission τi of greater than 80% in the wavelength region from 350 to 800 nm and in the region in which the primary light source emits light, wherein the sum of transmission and reflection of the sintered matrix glass without luminophore is at least greater than 80% in the spectral region from 350 nm to 800 nm and in the spectral region in which the primary light source emits light.