Illumination unit
AssigneeSiemens AG Osterreich
InventorsLeopold Hellinger, Gerhard Neumann
Life of this patent
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Abstract
There is described an illumination unit with a planar carrier part having a plurality of light-emitting semiconductor components, in particular high-power light-emitting diodes, arranged on both sides of a main surface. On each side of the carrier part a heat sink is provided in each case. Each of the semiconductor components is connected in an efficient heat-conducting manner to a heat sink provided on an opposite side of the carrier part by way of a heat conducting means that is fed through an opening in the carrier part. At least one reflector is embodied on each heat sink having a reflective surface which concentrates the emitted light from a semiconductor component which is arranged on the side of the carrier part facing this heat sink.
Claims16
-12. (canceled)
An illumination unit, comprising:
- a planar carrier part;
- a plurality of light-emitting semiconductor components arranged on opposite main surfaces of the opposite sides of the planar carrier part;
- a heat sink on each side of the carrier part, wherein the semiconductor components on one side of the carrier part are thermally connected to the heat sink on the opposite side of the carrier part;
- an opening in the carrier part, wherein the heat conducting device is fed through the opening;
- and
- a reflector on the heat sink of one of the sides, wherein the reflector has a reflective surface to concentrate light emitted from the semiconductor component which is arranged on this side of the carrier part facing this heat sink.
Dependencies are inferred from the claim text.