Osram Gmbh

Osram Ag

Osram Gesellschaft MIT Beschrankter Haftung

Adam Kotowicz

Rainer Koger

Bernhard Winzek

Maria Nilius

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

An electrode for a discharge lamp (I) with a core () and a sheath (), which surrounds at least regions of the core (). The sheath () has, in the longitudinal direction (A), a continuous bore (), which has a first diameter (d) in a first subregion and a second diameter (d) in a second subregion.

Electrode for a discharge lamp

The invention relates to an improved electrode rod () holder with the aid of a metal tube pieceand a metal plateconnected in a fixed manner to the metal tube piece for a mercury ultra-high pressure discharge lamp.

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Berlin, Germany

Adam Kotowicz