Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Patent-treuhand-gesellschaft Fuer Elektrische Gluehlampen Mbh

Patent-treuhand-gesellschaft F. Elektrische Gluehlampen Mbh

Helmholtz-zentrum Hereon Gmbh

Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh

Thomas Dittrich

Clemens Barthelmes

Ralf Seedorf

Hans-Werner Goelling

Dieter Franke

Manfred Pilsak

Jurgen Maier

Anna-Maria Frey

Steffen Fengler

The invention concerns a high pressure discharge bulb. Such bulbs involve a wo-sided sealed bulb with and without an outer bulb. The bulb is sealed by a pinch on at least one side. It generally has a discharge vessel made of quartz. These bulbs particularly comprise metal halide bulbs, which have a metal halide filling in addition to mercury, but they also include mercury high pressure discharge bulbs or xenon high pressure discharge bulbs. The bulbs are used preferably for optical systems, particularly larly for photo-optical purposes, for example, in head-lights, overhead projectors, and decorative lighting devices. They particularly find application in lighting systems for the stage, film and television. Typical lamp powers are 400 to 2000 W. A discharge lamp pinched on each end has pinches in which the ratio of the total width of each wide side is smaller than or equal to 2.2 times the thickness of the wide side. Tube pieces carrying the base sleeves are formed on the outer ends of the pinches.

High pressure discharge bulb

Metal-halide discharge lamp for photooptical purposes

Metal halide gas discharge lamp for projection purposes

Growing community of inventors

Berlin, Germany

Thomas Dittrich