摘要:
The invention concerns an electric lamp, particularly a high-pressure disrge lamp or halogen bulb with a base on one side for a motor-vehicle headlight. The base of the lamp of the invention has a base sleeve (110) comprised of an electrically insulating material and a mounting element (111) also comprised of an electrically insulating material, which bears lamp bulb (116) and which is joined with base sleeve (110). According to the invention, a metal part (121) is anchored in mounting element (111) and a metal ring (122) is anchored in base sleeve (110), whereby metal ring (122) is equipped with several shaped spring-type weld lugs (122), which are welded with metal part (121) anchored in mounting element (111).
摘要:
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).
摘要:
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.
摘要:
A gas discharge lamp base (1) with a starting device has a carrier part (16) for electronic components (23 through 30) of the starting device. The carrier part (16) has a top side and a bottom side. Only high voltage-carrying components (23 through 26) of the starting device are arranged on the one side of the carrier part (16), and only low voltage-carrying components (27 through 30) of the starting device are arranged on the other side (low voltage side) of the carrier part (16).
摘要:
The invention relates to a high-pressure discharge lamp with an outer bulb urrounding the discharge vessel, and to a process for producing a high-pressure discharge lamp. The outer bulb (1) comprises a glass that has a low viscosity and in particular a lower softening temperature than the quartz glass of the discharge vessel (2), and is melted directly onto the ends (5a, 5b) of the discharge vessel (2), which is sealed on both ends. As the glass for the outer bulb, a quartz glass doped with viscosity-lowering additives, in particular alkaline-earth metal borates, is used, while the discharge vessel comprises undoped quartz glass. In addition, the quartz glass of the outer bulb is preferably doped with rare earth metal additives that absorb UV radiation. To avoid projection errors, the axis of symmetry of the substantially rotationally symmetrical outer bulb (1) is shifted parallel relative to the path connecting the electrode heads by an amount that, for a horizontal lamp operating position, is defined by the convection-dictated curvature of the discharge arc.
摘要:
The invention relates to circuitry for the operation of a high-pressure dharge lamp including a voltage transformer (T1, T2), preferably a push-pull transformer, a transformer (TR1) connected to the output of the voltage transformer (T1, T2), a pulse ignition device, and a load circuit designed as a ocrial resonance circuit (L1, C1) into which the high-pressure discharge lamp (LP) is switched. The transformer (TR1) possesses at least two secondary windings (w1c, w1d), wherein the first secondary winding (w1c) switches into the load circuit and the second secondary winding (w1d) is connected to the pulse ignition device at the voltage input. The ignition voltage output of the pulse ignition device is designed to be connected to an auxiliary ignition electrode (ZE) of the high-pressure discharge lamp (LP).
摘要:
To protect the plastic material of a plastic base (2) holding a single-en high pressure discharge vessel (1) in position with respect to ultraviolet (UV) radiation and heat emitted from the discharge vessel in operation of the lamp, a cover element (7, 7") of UV radiation and high temperature resistant material, such as a ceramic and preferably aluminum oxide, is positioned between the discharge vessel and the plastic material of the base, located to shield the plastic base from UV and heat radiation. The cover element is, essentially, in disk or plate form, and irremovably connected to the base, for example by pin extensions integral with the base, passing through recessed openings in the cover element, and headed over, in the form of rivet or button heads, for example by ultrasonic welding.