Conversion elements comprising an infiltration matrix

US11760929B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Jörg Frischeisen · Birkenfeld, DE
• Nusret Sena Gueldal · Regensburg, DE
• Angela Eberhardt · Augsburg, DE
• Vesna Mueller · Vaterstetten, DE
• Florian Peskoller · Ingolstadt, DE
• Pascal Rabenbauer · Bobingen, DE
• Thomas Huckenbeck · Augsburg, DE
• Jürgen Bauer · Pocking, DE

Key dates

• Filing date: Nov 13, 2019
• Grant date: Sep 19, 2023
• Expiry date: Jan 6, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K11/77
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a conversion element comprising a wavelength-converting conversion material, a matrix material in which the conversion material is inserted, and a substrate on which the matrix material and the conversion material are directly arranged, the matrix material comprising at least one condensed sol-gel material selected from the following group: water glass, metal phosphate, aluminium phosphate, monoaluminium phosphate, modified monoaluminium phosphate, alkoxytetramethoxysilane, tetraethyl orthosilicate, methyltrimethoxysilane, methyltriethoxysilane, titanium alkoxide, silica sol, metal alkoxide, metal oxane or metal alkoxane, the conversion element being arranged in the beam path of a laser source, the conversion element being mounted in a mechanically immobile manner in relation to the laser source, and the radiation of the laser source being dynamically arranged in relation to the conversion element.