Dr. Johannes Heidenhain Gmbh

Hella Kgaa Hueck and Company

Institut Fur Angewandte Photovoltaik Gmbh

Dieter Jestel

Dieter Michel

Andreas Franz

Andreas Himmler

Christian Smarslik

Waldemar Kurkofka

Alfons Puls

Hendrik Kleinemeier

Alexander Kornek

Achim Schulte

Matthias Klockhaus

Lukas Wahmes

Jeannette Schulte

Martin-John Kortmoller

Werner Guderjan

Michael Domroese

Frank Bosch

Frank Bösch

Torsten Ruths

Hans Gerd Berthold

Florian Rodenkirchen

Martin-John Kortmöller

An illumination device comprising a housing positionable at a distance from an area to be illuminated and having at least one lighting module, on a support in the housing, that has lighting units having the same light distribution characteristics. Each of the lighting units contains lighting elements and associated lenses arranged in front of the same in the light-emitting direction. Different lighting modules may include lighting units having different light distribution characteristics, while the lighting units have optical axes running parallel to each other. At least one lighting unit is configured such that its light distribution characteristics have at least one asymmetrical section relative to a central plane of the lighting unit.

Street lighting device

A method for welding the surfaces of materials, of which at least one is glass, during which the energy that is required for the welding process is provided by with a laser beam, characterized by the fact that an intermediate sealing glass is applied between the surfaces that are to be welded and that the laser beam is adjusted in such a way that only the intermediate sealing glass melts.

Method for welding the surfaces of materials

Waveguide type displacement interferometer having two reference paths

Growing community of inventors

Castrop-Rauxel, Germany

Dieter Jestel