Osram Opto Semiconductors Gmbh

Osram Gmbh

Osram Oled Gmbh

Horst Varga

Ales Markytan

Christian Gaertner

Manfred Scheubeck

Ralph Wirth

Alexander Linkov

Jan Marfeld

Gerhard Kuhn

Alexander Wilm

Roland Schulz

Elmar Baur

Christian Gärtner

David Dussault

Matthias Fiegler

Janick Ihringer

Sebastian Lyschick

Torben Frahm

Ralph Peter Bertram

A lighting device and a lighting system are disclosed. In an embodiment, a lighting device includes at least one optoelectronic semiconductor chip, two contacts configured to couple the lighting device to a DC voltage and a driver circuit interconnected in series with the at least one semiconductor chip in a string, wherein the driver circuit comprises a monolithic, unhoused controller, wherein the driver circuit is configured to adjust a current for operating the at least one semiconductor chip, and wherein the string extends between the two contacts in an electrically coupling way.

Illumination device and illumination system

An optical element is provided for beam shaping for radiation emitted by a radiation-emitting semiconductor chip. The optical element includes a radiation entrance face and a boundary surface different from the radiation entrance face with a first region and a second region. The first and second regions are arranged and embodied such that a first radiation portion of radiation entering the optical element through the radiation entrance face is reflected in the first region and after reflection in the first region is deflected in the second region towards a plane defined by the radiation entrance face.

Optical element and lighting device comprising an optical element

An optoelectronic device that radiates mixed light including a first semiconductor light source which radiates light in a first wavelength range at a first intensity, a second semiconductor light source which radiates light in a second wavelength range at a second intensity, a third semiconductor light source which radiates light in a third wavelength range at a third intensity, a resistance element having a temperature-dependent electrical resistance, and a semiconductor light source control element that controls the intensity of the third semiconductor light source.

Optoelectronic device

A lighting device has a carrier with a mounting face. A number of light-emitting diodes include at least two of the light-emitting diodes suitable for emitting light of different colors during operation. At least one color sensor, during operation, detects the light of at least one of the light-emitting diodes. At least one light-measuring face is illuminated by light of at least one of the light-emitting diodes and reflects and/or scatters at least a portion of this light. The light-emitting diodes and the at least one color sensor are arranged on the mounting surface, the at least one light-measuring face is arranged at a distance from the carrier, and the at least one color sensor; detects for the most part light reflected by the at least one light-measuring face from at least one of the multiplicity of light-emitting diodes.

Lighting device

The invention relates to a lighting device having at least one light-emitting diode module (), which comprises at least two light-emitting diodes (), which during operation emit light having colors that differ from each other, at least one driver (), which is designed to supply the light-emitting diodes () of exactly one of the at least one light-emitting diode modules () with operating current, exactly one control device (), which during operation controls the at least one light-emitting diode module () in an open-loop and/or closed-loop manner, wherein each light-emitting diode module () is biuniquely associated with a driver (), and the control device () controls each light-emitting diode module () in an open-loop and/or closed-loop manner by means of the driver associated with the light-emitting diode module ().

Lighting device and control device for controlling a plurality of light-emitting diodes in an open-loop and/or closed-loop manner

A mixed light source has a first semiconductor component, which is provided for generating a first radiation fraction, and a second semiconductor component, which is provided for generating radiation of a second radiation fraction different from the first radiation fraction. The first semiconductor component is mounted by a first mounting point on a first heat sink with a first thermal resistance R. The second semiconductor component is mounted by a second mounting point on a second heat sink with a second thermal resistance R. The thermal resistances Rand Rare different from one another.

Mixed light source

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Lappersdorf, Germany

Horst Varga