Merck Patent Gmbh

Litec-vermogensverwaltungsgesellschaft Mbh

Christof Hampel

Ralf Petry

Andreas Benker

Holger Winkler

Thomas Juestel

Tim Vosgroene

Aleksander Zych

Ingo Koehler

Stefan Tews

Andrea Opolka

Adeliene Schmitt

Joseph A Spencer

Irene (Yu Huan) Liu

Kassandra Sullivan-Trujillo

Monica Davis

Christopher Gump

Olaf Soeth

David King

The present invention relates to a laser additive comprising core/shell particles, to a process for the preparation of a laser additive of this type, and to the use thereof, in particular as laser absorber in plastics and plastic-containing coatings of articles.

Laser additive

The present invention relates to novel phosphor mixtures and to a light-emitting device which comprises at least one of the novel phosphor mixtures. The phosphor mixtures can be used in phosphor-converted LEDs with a semiconductor that emits in the violet spectral region. The present invention furthermore relates to a lighting system which may comprise the light-emitting devices according to the invention, and to a dynamic lighting system. The present invention furthermore relates to a process for the preparation of the phosphor mixtures according to the invention and to the use thereof in light-emitting devices for use in general lighting and/or in specialty lighting.

Luminophore mixtures for use in dynamic lighting systems

The invention relates to Eu-activated phosphors, to a process for the preparation of these compounds, and to phosphor mixtures, light sources and lighting units which comprise the Eu-activated phosphors according to the invention.

Eu-activated luminophores

The invention relates to Eu-activated phosphors, to a process of its preparation, the use of these phosphors in electronic and electro optical devices, such as light emitting diodes (LEDs) and solar cells and especially to illumination units comprising said magnesium alumosilicate-based phosphors.

[object Object]

The present invention relates to a process for the preparation of a europium-doped alkaline-earth metal siliconitride or silicooxynitride having increased emission efficiency. The present invention furthermore relates to europium-doped alkaline-earth metal siliconitrides or silicooxynitrides which are obtainable by the preparation process according to the invention, and to the use of the europium-doped alkaline-earth metal siliconitrides or silicooxynitrides according to the invention as conversion phosphors. The present invention furthermore also relates to a light-emitting device which comprises a europium-doped alkaline-earth metal siliconitride or silicooxynitride according to the invention.

Process for production of phosphors

Growing community of inventors

Frankfurt am Main, Germany

Christof Hampel