Abstract: The lamp comprises a discharge vessel (2) which is closed off in a vacuum-tight manner and is arranged in an outer bulb (12), a getter material being held on a support body inside the outer bulb (12). The support body is a support strip (31) to which the getter material is applied, the support strip being bent in such a way that it is automatically held in the outer bulb (12) without the need for any auxiliary means.

Abstract: The electrode comprises a pin-like shank (7) and a head part (8), the electrode, in the region of its discharge-side end, forming a vessel (9) for an emitter, in which there is a bore (16) which is filled with emitter material (10). The vessel, at its discharge-side end face, forms a collar, having an inner collar part (13) which is curved convexly toward the bore and an outer collar part (14) which is curved convexly toward the side wall of the vessel.

Abstract: A discharge lamp (1) with a base (2), suitable for operation by means of a dielectrically impeded discharge, has a spacing between the base (2) and the outer wall of the discharge vessel (3). The overall efficiency of the generation of UV radiation is improved thereby.

Abstract: An electric lamp with a base (6), which is structurally subdivided into an upper part (7) that retains the bulb and a substantially circular-cylindrical lower part (5) for external fastening, which lower part protrudes past the upper part, and the protruding portion (13) is embodied as a detent mechanism for the external fastening. The detent mechanism in each case includes an inward-facing detent protrusion (20) located on the outside, which is an integral component of the lower part, and a metal spring (24), located opposite the detent protrusion and cooperating with it, that is secured in the lower part.

Abstract: An integrated control and regulating circuit (IC) controls, via a half-bridge circuit (V2, V3), a load circuit (4) having the at least one fluorescent lamp (FL) by means of a drive circuit (CCO, SEL, HSD, LSD) regulated in a high-frequency manner. In the control and regulating circuit, each time the lamp is started and/or when there is a disturbance, a timer (PST, IT, CT) is started, which thus defines a sequence predetermined periods of time (&Dgr;pt, &Dgr;it, &Dgr;st, &Dgr;ot), inter alia preheating period (&Dgr;pt) and ignition period (&Dgr;it).

Abstract: A pump supporting inductor (L1) is added to a half-bridge oscillator circ for a low-pressure discharge lamp (E) having a capacitive pump path, which inductor improves the pumping action of the pump path and its frequency response. Furthermore, an additional capacitor (C1) is connected between the pump path and the power supply path connected thereto, which capacitor acts as a trapezoidal capacitor in conjunction with the pump path and further improves the frequency response of the pump path.

Abstract: The invention relates to a system composed of a halogen incandescent lamp d a matching socket, substantial advantages with regard to environmental friendliness and cost being achieved by using a high-voltage or medium-voltage halogen incandescent lamp having a simple glass cap and by holding the lamp in the socket on the glass cap, without the safety aspect being neglected.

Abstract: The invention relates to an electric luminaire having a luminaire housing 0, 11) and at least one low-pressure discharge lamp (12) as well as an operating device for operating the at least one low-pressure discharge lamp (12), the operating device having lamp-side (19a) and line-side electric terminals (19e, 19f) for supplying voltage to the at least one low-pressure discharge lamp (12) and to the operating device. According to the invention, the at least one low-pressure discharge lamp (12) is fastened to the luminaire housing (10) with the aid of an adhesive means (13), preferably by means of a double-sided adhesive tape. Moreover, according to the invention the at least one low-pressure discharge lamp (12) is uncapped and has a plurality of supply leads (14a, 14b, 14c, 14d) which project from its discharge vessel and are connected according to the invention in each case to one of the lamp-side electric terminals (19a) of the operating device.

Abstract: According to the invention, a common connecting clip (5) is used in the cse of connecting two or more power semiconductors (4) on a board (3) to a cooling plate (1).