Ceramic conversion element, optoelectronic component comprising a ceramic conversion element, and methods for producing a ceramic conversion element

US9360189B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Ute Liepold · Birkenfeld, DE
• Carsten Schuh · Baldham, DE
• Gia Khanh Pham · Charlotte, US
• Mikael Ahlstedt · Birkenfeld, DE

Key dates

• Filing date: Sep 10, 2012
• Grant date: Jun 7, 2016
• Expiry date: Jul 21, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8514
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A ceramic conversion element includes a multiplicity of first regions and a multiplicity of second regions, wherein the first regions vitreous, ceramic or monocrystalline fashion, at least either the first regions or the second regions are columnar and have a preferred direction forming an angle of at most 45° with a normal to a main surface of the conversion element, the first regions convert electromagnetic radiation in a first wavelength range into electromagnetic radiation in a second wavelength range different from the first wavelength range, the second regions convert electromagnetic radiation in the first wavelength range into electromagnetic radiation in a third wavelength range different from the first and second wavelength ranges, wherein the second regions are formed by a resin into which phosphor particles are embedded.