Hella Kgaa Hueck and Company

Bjorn Abel

Nikolaus Decius

Klaus Auras

Bernhard Rupprath

Ralf Ruther

Lighting apparatus for airports, in particular flush light, having housing with a housing base and a housing top that includes a recess for receiving a light disc. Light disc facilitates the emission of light from a light source, disposed in the interior of the housing, to the surroundings. A light source carrier on which the light source is mounted is attached to a heat transfer block locked in a recess of the housing top such that edges and/or at least partially flat sides of the heat transfer block are in direct contact with the corresponding sides of the recess.

Airfield lighting apparatus

A lighting device, capable of identifying and marking traffic areas of airports, comprises at least one semiconductor lamp and an electronic control circuit, which is connectable to an electrical AC supply network with constant current feed. For controlling the operation of the semiconductor lamp, the control circuit has a rectifier, which is connectable without a transformer to the electrical AC supply network. It further has an internal power supply, which is connected to the rectifier, for supplying the semiconductor lamp with an electric direct current. Furthermore, the voltage supply device () having electronic power factor correction means, by means of which voltage and current can be kept in phase in all operating states of the lighting device (). It furthermore re-adjusts the input voltage from the electrical AC supply network to allow the current predefined on the AC supply network to flow in the event of a small power demand of the electronic control circuit.

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Lippstadt, Germany

Bjorn Abel