Zumtobel Lighting Gmbh

Andreas Schwaighofer

Marcel Kilga

Michael Spiegel

Christian Kohler

Patrik Gassner

Helmut Feuerle

Thomas Rein

Tanja Illic

Thibaut Escourrou

An optical element () for influencing light emitted by light sources () has at least one pair of optical system elements () which are arranged next to one another and integrally formed with one another. A light entrance region () and a deflecting surface portion () are formed on the back side () of each optical system element (). Each optical system element () is designed so that first light rays (L) from an assigned light source () are directly incident on the deflecting surface portion () and undergo total-internal reflection at the deflecting surface portion (), and subsequently leave the optical element () via the front-side surface portion (). Each optical system element () is also designed so that second light rays (L) of the light from the assigned light source (are directly incident on the front-side surface portion (), undergo total-internal reflection at the front-side surface portion (), subsequently are incident on the deflecting surface portion (), undergo total-internal reflection at the deflecting surface portion (), and subsequently leave the optical element () via the front-side surface portion ().

Optical element and luminaire equipped therewith

A luminaire for generating direct lighting and indirect lighting including an LED light source for generating light and a light guide plate having a first main surface and a second main surface, which is connected to the first main surface marginally via a narrow side face, wherein the LED light source is arranged in such a way that the light is radiated into the light guide plate via the narrow side face and subsequently one part of the light is emitted for generating the direct lighting via the first large main surface. Furthermore, a reflector is provided, which is arranged adjacent to the second main surface, wherein the reflector has at least one light-transmissive region configured in such a way that a further part of the light is emitted for generating the indirect lighting via the second main surface through the light-transmissive region.

Luminaire for generating direct lighting and indirect lighting

In a lighting arrangement, in particular for escape route lighting, comprising a light source and an optical element assigned to the light source, said optical element being designed to emit asymmetrically the light emitted by the associated light source, the optical element can be positioned in different ways.

Lighting arrangement, in particular for escape route lighting

Growing community of inventors

Dornbirn, Austria

Andreas Schwaighofer