Signify Holding B.v.

Stephan Certain

Johannes Petrus Maria Ansems

Olexandr Valentynovych Vdovin

Joris Jan Vrehen

Michel Cornelis Josephus Maria Vissenberg

A lighting device () is provided. The lighting device () comprises a light-transmissive enclosure () and alight source (). The light-transmissive enclosure () has an outer surface () and an inner surface () opposite to the outer surface (). The inner surface () at least in part forming a cavity (). The light-transmissive enclosure () has an opening () lying in a transverse plane (P). The light source () is arranged on the transverse plane (P), or on a side of the transverse plane (P) opposite of the light-transmissive enclosure (), and configured to emit light into the cavity (). The light-transmissive enclosure () is arranged around a longitudinal axis (L), the longitudinal axis (L) lying in a longitudinal plane that is perpendicular to the transverse plane (P). The light-transmissive enclosure () has a first part () and a second part () separated from each other by the longitudinal plane (P). The first part () is shaped as a first parabolic segment or a first elliptical segment having a first focal point () that is located on the transverse plane (P). The second part () is shaped as a second parabolic segment or a second elliptical segment having a second focal point () that is located on the transverse plane (P). The light source () is arranged between the first focal point () and the second focal point ().

Growing community of inventors

EINDHOVEN, Netherlands

Stephan Certain