Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Patent-treuhand-gesellschaft Fuer Elektrische Gluehlampen Mbh

Osram Gesellschaft MIT Beschrankter Haftung

Andreas Hollstein

Axel Bunk

Ulrich Binder

Horst Porembski

Martin Beck

A fluorescent lamp for exterior lighting having a discharge tube of less than or equal to 26 mm outside diameter. Starting from a fluorescent lamp for interior use having a discharge tube of less than or equal to 26 mm, it is possible to achieve optimum operation of the fluorescent lamp in the case of exterior use by applying a thermally conducting material in the form of a coating of foil outside on the discharge tube in the region of one or both electrodes

Fluorescent lamp having asymmetric electrodes inside the discharge tube

Electric incandescent halogen lamp with barrel-shaped bulb

A fluorescent lamp, particularly of annular shape, with a tube-shaped disrge vessel has a base with contact pins, in which the two ends of the vessel face each other. The contact pins are essentially arranged in the annular plane of the lamp on both sides of the base. The mount belonging thereto has a U-shaped profile. The arms of the mount are provided with recesses for taking up and making contact with the contact pins of the base. This makes possible a linear motion when inserting the base into the mount. Retaining springs on the mount and recesses on the base belonging thereto make possible a locking of the base with the mount. Another advantage is the small structural height of the lamp including the mount.

Low-pressure discharge lamp with base and mount

Growing community of inventors

Ingolstadt, Germany

Andreas Hollstein