Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh

Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen Mbh

Osram Ag

Juergen Becker

Gerhard Behr

Peter Helbig

Guenther Hirschmann

Christian Wittig

Kilian Klages

Karsten Pietsch

Matthias Protsch

Wolf-Ruediger Becker

In various embodiments, a lamp unit including a lamp which is inserted into a reflector and which has a base with a reference ring including at least one referencing surface which cooperatively interacts with a corresponding referencing element of a holder of the reflector, configured such that the lamp is separably connected to the holder through a bayonet coupling.

Lamp unit

The invention relates to a high-pressure discharge lamp for motor vehicle headlights which is provided with an annular flange ( ) for mounting the high-pressure discharge lamp in the lamp holder of the motor vehicle headlight. According to the invention, the annular flange ( ) is fixed on the base ( ) by means of a snap or latching connection and is adapted to the lamp holder of motor vehicle headlights for halogen incandescent lamps. As a result, the high-pressure discharge lamp according to the invention can be inserted in motor vehicle headlights for halogen incandescent lamps.

High-pressure discharge lamp for motor vehicle headlights

The invention relates to an electric lamp with a base on one side, having a base ( ) which has a holder ( ) for a lamp vessel ( ), the holder ( ) being provided with a stop ( ) for one end of the lamp vessel ( ), and the base ( ) having spring elements ( ) for fixing the lamp vessel ( ) in the base ( ). According to the invention, the lamp vessel ( ) is equipped with an annular groove ( ), and the spring elements ( ) are designed such that they act on the lamp vessel ( ) in the area of the annular groove ( ), so that the end of the lamp vessel ( ) sits with a press fit on the stop ( ).

Electric lamp with a base on one side

The invention relates to an electric lamp for a motor vehicle headlight. The lamp is equipped with an adjustment ring (,) which has at least three bearing points (,) which are arranged in a common plane oriented perpendicularly with respect to the axis of the adjustment ring (,). Along its inner circumferential surface, the adjustment ring (,) has at least three contact points (,) with the lamp cap (,), in which points the adjustment ring (,) is fixed to the lamp cap (,).

Electric lamp

The invention relates to a pulse starting device and a starting method for a discharge lamp, in particular a high-pressure discharge lamp for a motor vehicle headlamp. The starting device has a transformer which has either two primary windings which are connected in parallel and are both coupled inductively to the at least one secondary winding, or instead has a primary winding which consists of a wide metal strip and is wound, separated by an electric insulation, over the at least one secondary winding. The starting device according to the invention has a compact design which permits the complete starting device to be accommodated in the lamp cap.

Ignition device for a discharge lamp and method for igniting a discharge lamp

The invention relates to an ignition apparatus for a discharge lamp, in picular high-pressure discharge lamp for motor vehicle headlights. The ignition apparatus, which is preferably designed as a pulse ignition device, is accommodated in the lamp base. According to the invention, it has; a plate (1), which is composed of an electrically conductive material, is matched to the geometry of the base and on which at least the ignition capacitor (C1) and the spark gap (F1) are fastened, at least one first electrical connection of the ignition capacitor (C1) and at least one first electrical connection of the spark gap (F1) being electrically conductively connected to the plate (1).

Growing community of inventors

Berlin, Germany

Juergen Becker