Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Coelux S.r.l.

Friedrich-schiller-universitat Jena

Bernd Höfer

Peter Schreiber

Antonio Lotti

Christoph Wächter

Hans-Christoph Eckstein

Chen Li

Wiebke Eckstein

An optical device for imaging a first, object-side set of mutually parallel bundles of beams onto an image surface, includes

Multichannel optomechanical addressing unit

The present disclosure is directed to a direct-light generator for sun-sky-imitating illumination devices configured for generating natural light similar to that from the sun and the sky The generator includes a first emitting surface and an array of light-emitting devices configured to generate from a primary light a direct light which exits the first emitting surface along a direct-light direction. The direct light exiting the first emitting surface has a luminance profile which has a narrow peak in the angular distribution around the direct-light direction and is uniform across the first emitting surface. Each light-emitting device includes a light emitter having an emitting surface and at least a pair of collimation lenses illuminated by the light emitter.

Direct-light generator for sun-sky-imitating illumination devices

Growing community of inventors

Jena, Germany

Bernd Höfer