Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Patent-treuhand-gesellschaft Fuer Elektrische Gluehlampen Mbh

Osram Gesellschaft MIT Beschraenkter Haftung

Osram Gesellschaft MIT Beschrankter Haftung

Matthias Damm

Roland Stark

Georg Rosenbauer

Axel Bunk

Thomas Noll

Christoph Krieglmeyer

Marcel Vuc

Joachim Werner

Rudolf Horndasch

Karlheinz Vogl

The invention relates to an incandescent lamp () which is provided with an illuminant () which is inserted in a bulb () together with a filling in a vacuum-tight manner, the illuminant () comprising a metal carbide that has a melting point above that of tungsten. The bulb also comprises a source and a sink for a material of which the illuminant is depleted during use.

Incandescent lamp having an illuminant that contains a high-temperature resistant metal compound

The incandescent lamp, which uses a carbon cycle process, is equipped with a luminous body which, together with a fill, is introduced in a vacuum-tight manner into a bulb, the luminous body including a metal carbide, the melting point of which is above that of tungsten. The distance between the luminous body and the wall of the bulb is less than 18 mm, with a first cycle process, which is attributed to the carbon, being effected by the use of carbon and hydrogen as fill additive, and a second cycle process, which is attributed to the metal, being effected by the use of halogen.

Incandescent lamp with a carbon cycle and a halogen cycle

Disclosed is a halogen incandescent lamp having a lamp vessel, which is sealed at one end and in which at least one luminous element is accommodated, a vessel sectionbeing in the form of a side reflector which extends only over a subregion of the lamp vessel circumference. A light-exit windowadjoins this vessel sectionin the circumferential direction. According to the invention, the light-exit windowis comparatively slightly curved in cross section, the vessel sectionforming the side reflector bulging out away from the light-exit window. This bulged-out region is preferably provided with a kidney-shaped constriction

Halogen incandescent lamp

The invention relates to an illumination unit having an electric lamp and an envelope fixed thereto, the lamp having a base, in particular a G9 base, protruding from said envelope, and the fastening means for the envelope being connected to the lamp vessel such that the base is freely accessible for a corresponding lamp holder.

Headlamp capsule with debris protection

As its filling, a halogen incandescent lamp contains noble gas, halogen additive, carbon as well as nitrogen and oxygen in the form of a nitrogen-oxygen compound, preferably N.sub.2 O.

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Gaimersheim, Germany

Matthias Damm