Conversion element, component and process for producing a component

US9688910B2 · kind B2 · utility

Assignee

• OSRAM GmbH · DE

Inventors

• Angela Eberhardt · Augsburg, DE
• Christina Wille · Friedberg, DE

Key dates

• Filing date: Dec 15, 2014
• Grant date: Jun 27, 2017
• Expiry date: Dec 15, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8513
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A conversion element, a component and a method for producing the component are disclosed. In an embodiment the conversion element includes a phosphor configured to convert electromagnetic primary radiation into electromagnetic secondary radiation and a glass composition as matrix material in which the phosphor is embedded. The glass composition has the following chemical composition: at least one tellurium oxide with a proportion of 65 mole % as a minimum and 90 mole % as a maximum, R1O with a proportion of between 0 mole % and 20 mole %, at least one M12O with a proportion of between 5 mole % and 25 mole %, at least one R22O3 with a proportion of between 1 mole % and 3 mole %, M2O2 with a proportion of between 0 mole % and 2 mole %, and R32O5 with a proportion of between 0 mole % and 6 mole %.