Patent · US Active

Mn-activated oxidohalides as conversion luminescent materials for LED-based solid state light sources

US12024662B2 · kind B2 · utility

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11Claims

0Family size

Assignee

LITEC-VERMOGENSVERWALTUNGSGESELLSCHAFT MBH · DE

Inventors

Thomas Paul JANSEN · Kohlenbissen, DE
Thomas Juestel · Aachen, DE
Ralf Petry · Griesheim, DE
Ingo Koehler · Darmstadt, DE
Katharina Sievert · Mesekenhagen, DE

Key dates

Filing date	Mar 18, 2019
Grant date	Jul 2, 2024
Priority date	—
Expiry date	Oct 28, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The present invention relates to Mn-activated luminescent materials, to a process for preparation thereof and to the use thereof as luminophores or conversion luminophores in light sources. The present invention further relates to a radiation-converting mixture comprising the luminescent material of the invention and a light source comprising the luminescent material of the invention or the radiation-converting mixture. The present invention further provides light sources, especially LEDs, and lighting units comprising a primary light source and the luminescent material of the invention or the radiation-converting mixture. The Mn-activated luminescent materials of the invention are especially suitable for creation of warm white light in LEDs.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.