Osram Gesellschaft MIT Beschrankter Haftung

Osram Gmbh

Rainer Koger

Matthias Morkel

Bernhard Winzek

Adam Kotowicz

Maria Nilius

Wolfgang Spielmann

Lars Menzel

Markus Kolodziejczyk

A high-pressure discharge lamp comprising two electrodes (), which are arranged facing each other in a discharge vessel () and are each in electric contact via a current feed system (), wherein each current feed system penetrates a piston shaft () arranged in a gastight manner on the discharge vessel (), wherein in the region of the outer current feed () of at least one piston shaft () a cooling element () is arranged, and wherein the outer current feed () and the cooling element () are in direct thermal and electric contact.

High-pressure discharge lamp having a cooling element

The invention relates to a high-pressure mercury discharge lamp for DC operation at a nominal wattage of more than 1.5 kW. Said high-pressure mercury discharge lamp comprises an anode, at least some areas of which are made of a material containing at least some tungsten, said material having a grain number of more than 200 grains per mmand a density of more than 19.05 g/cm.

High-pressure mercury discharge lamp

The invention relates to a discharge lamp, in particular a high-pressure discharge lamp, having a discharge vessel () which has two diametrically opposite necks () into each of which a holding rod () is fused at least in places, with an electrode () which extends into the discharge vessel () being arranged on each holding rod (), and with in each case at least one annular plate () at least partially clasping a holding rod (), with at least one of the annular plates () being arranged in the discharge vessel ().

Discharge lamp with a holding apparatus for the electrodes

Growing community of inventors

Berlin, Germany

Rainer Koger