Osram Gmbh

Osram Gesellschaft MIT Beschrankter Haftung

Kai Franz

Ulrich Hartwig

Klaus Finsterbusch

Josef Kroell

Dirk Wittenberg

A lighting device comprising a pump laser matrix () and a phosphor arrangement. The pump laser matrix () is configured to emit pump radiation () having a controllable pump radiation power distribution for the irradiation of the phosphor arrangement (). The phosphor arrangement () comprises at least two different phosphors (R, Y, G) which can be irradiated with the pump radiation () and re-emit said pump radiation in a manner such that it is at least partly and in each case differently wavelength-converted. The lighting device () is configured to generate, with the aid of the pump laser matrix (), a controllable distribution of the surface power density of the pump radiation on the phosphors (R, Y, G) of the phosphor arrangement ().

Lighting device with a pump laser matrix, and method for operating said lighting device

A device for emitting a first and a second electromagnetic radiation () via a radiation coupling-out surface () along a device beam path. A first radiation-emitting arrangement () has at least one first radiation-emitting component () which emits the first electromagnetic radiation (). A second radiation-emitting arrangement () has at least one second radiation-emitting component () which emits the second electromagnetic radiation (). Furthermore, the device has a radiation-directing element (), wherein the radiation coupling-out surface () is arranged in the beam path of the second radiation-emitting arrangement () and the radiation-directing element () directs the first electromagnetic radiation () to the radiation coupling-out surface ().

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Wuppertal, Germany

Kai Franz