Tungsram Reszvenytarsasag

El-co Villamos Keszulekek Es Szerelesi Anyagok Gyara

Zoltan Feher

Janos Melis

Miklos Csapody

Arpad Karpat

Karoly Jermendy

Andras Szeverenyi

Rudolf Sirato

Bela Waldinger

Andras Szeverenyl

A circuit system for igniting and lighting a high-pressure discharge lamp, particularly a sodium vapor lamp, comprising a pulse generator for generating signals of at least 1 kHz frequency being a high-frequency DC/AC converter connected to a direct current source and an ignition circuit coupled with the pulse generator including a high-pressure discharge lamp, a condenser connected in parallel to the high-pressure discharge lamp and an inductive member connected to the condenser and the high-pressure discharge lamp and forming a series member with the condenser the ignition circuit is provided with a transformer having a secondary winding connected in series with the inductive member for ensuring high reliability of igniting and for improving the conditions of lighting.

Circuit system for igniting and operating a high-pressure discharge

An illuminator, particularly for street lighting and industrial applications, comprising a light source including a gas discharge tube, a closed outer vessel for receiving the gas discharge tube, composed from a rear half part and a front half part for forwarding light of the light source, at least the front half part made of light transparent material, light reflecting means covering partly the inner surface of the rear half part of the outer vessel, mechanical fitting elements and electric connecting means, wherein the front half part and the rear half part both are symmetric to at most two symmetry planes and one of the symmetry planes includes the longitudinal axis of the gas discharge tube and constitutes the symmetry plane of the light emitted by the light source. The proposed illuminator require small place and is hardly subject to contamination originated from the environment.

Illuminator, particularly for street lighting and industrial applications

Growing community of inventors

Budapest, Hungary

Zoltan Feher