Abstract: A lamp for automotive front lighting and a vehicle headlight comprising the lamp are described, as well as a method of manufacturing the lamp. The lamp 10 comprises a base 12 for mechanical and electrical connection to an automotive headlight 50. A burner 14 is fixed to the base 12 and comprises a sealed transparent vessel 22. A first filament 34 is arranged within the vessel 22. A holding wire 30c is arranged within the vessel, and a baffle 40 is arranged proximate to the first filament 34 to partially shield light emitted from the first filament 34. The baffle 40 is fixed to the holding wire 30c. The transparent vessel 22 comprises a vessel wall including a cylindrical portion 24 surrounding the first filament 34. In order to obtain a lamp which may withstand vibration, a support member 38, 138, 238 is provided including at least a first part 39 fixed to the baffle 40 or to the holding wire 30c and a second part 43 which is in contact with the cylindrical portion of the vessel 22.

Abstract: A lamp for automotive front lighting and a vehicle headlight comprising the lamp are described, as well as a method of manufacturing the lamp. The lamp 10 comprises a base 12 for mechanical and electrical connection to an automotive headlight 50. A burner 14 is fixed to the base 12 and comprises a sealed transparent vessel 22. A first filament 34 is arranged within the vessel 22. A holding wire 30c is arranged within the vessel, and a baffle 40 is arranged proximate to the first filament 34 to partially shield light emitted from the first filament 34. The baffle 40 is fixed to the holding wire 30c. The transparent vessel 22 comprises a vessel wall including a cylindrical portion 24 surrounding the first filament 34. In order to obtain a lamp which may withstand vibration, a support member 38, 138, 238 is provided including at least a first part 39 fixed to the baffle 40 or to the holding wire 30c and a second part 43 which is in contact with the cylindrical portion of the vessel 22.

Abstract: A gas-discharge lamp includes a discharge vessel, two electrodes, a cap, an outer envelope, and a filling of a metal halide. To improve the quality of the beam color, the outer envelope of the gas-discharge lamp is partially coated with an optical compensating filter of a color complementary to the color of the metal halide. By partially coating the outer envelope with the compensating filter, an unwanted coloration in the beam is corrected.

Abstract: A vehicle headlight is described with a reflector housing (1, 21) and a front glass (22) which together enclose a headlight inner space. The headlight has a reference surface (15, 35) for defining the position of a lamp (7, 30) having a lamp body (8, 31) and a lamp base (9, 37) in the headlight The headlight is constructed such that the lamp (7, 30) can be inserted such that the lamp base (9, 37) is positioned in front of the lamp body (8, 31), viewed against the direction of radiation of the headlight In addition, a lamp (7, 30) is described which is constructed such that it can be inserted into the vehicle headlight in the manner described.

Abstract: The invention relates to a headlight for a motor vehicle, to a lamp for the headlight, and to a headlight unit. The lamp has two coils and is capable of fulfilling widely differing functions. Means for screening off the light emitted by the coils in certain angular regions are arranged such that the regions illuminated by the coils overlap only slightly, preferably not at all. At least two reflector regions of the lamp are each illuminated by an associated coil, and are shaped such that one headlight emits two headlight beams, both having a substantially horizontal bright/dark cutoff.

Abstract: A lamp has projecting stud and resilient elements configured to lock the lamp into a reflector housing upon insertion of the lamp into an opening of the reflector and rotation of the lamp. Electrical connection is also achieved through the rotation where transverse lamp contact elements are brought into engagement with corresponding contacts of the reflector housing.

Abstract: The invention relates to a gas-discharge lamp having a discharge vessel (5), two electrodes (7, 8), a cap (2), an outer envelope (11), and a filling in the discharge vessel comprising a metal halide. Gas-discharge lamps of this kind are used in particular as light sources for the headlight systems of motor vehicles. In order to easily improve the quality of the color of the beam from the lamp, particularly for application in an optical imaging system such as a reflector of a motor vehicle headlight, the outer envelope of the gas-discharge lamp is partially coated with an optical compensating filter (13) of a color complementary to the color of the metal halide. In gas-discharge lamps of the generic kind, that proportion (15) of salts in the filling that is not in the gaseous state when the lamp is operating produces a coloration in the beam generated. The yellowish condensate (15) in the discharge vessel causes an area of yellowish coloration in the beam.

Abstract: A lamp (10) and a headlight with a reflector housing (50) and a lamp (10) are disclosed. The lamp (10) has a lamp base (14) and a burner element (12), said lamp base (14) comprising locking means (20) which project transversely to the longitudinal axis of the lamp. Said means can be locked into an opening (52) of the reflector housing (50) through rotation after insertion of the lamp (10). Said rotation at the same time achieves the electrical connection in that contact elements (30) projecting transversely to the longitudinal axis, preferably planar contact lugs, are brought into engagement with contact means (60) at the reflector housing, preferably contact clamps. Further embodiments of the invention relate inter alia to axially and transversely acting spring elements (40, 42) as well as to a handle (28) for rotating the lamp.

Abstract: The invention relates to a lamp for a motor vehicle headlight, to a headlight for a motor vehicle, and to a headlight unit. According to a first aspect of the invention, a lamp with two coils is proposed which is capable of fulfilling widely differing functions, among them in particular future AFS lighting functions, in a flexible manner, while means for screening off the light emitted by the coils in certain angular regions are arranged such that the regions illuminated by the coils—at least in the radiation directions relevant for the use in a reflector—overlap only slightly, preferably not at all. Such a headlight comprises a reflector with at least two reflector regions which are each illuminated by an associated coil, the first and the second reflector region having a maximum overlap of 20% of the total reflector surface area.

Abstract: A discharge lamp and a headlight for a motor vehicle are proposed. A moving member is provided, which is movable between at least two positions, for switching over between different light distributions. It comprises at least one optically active element, preferably a lens, which generates an image of the gas discharge which is shifted away from the actual location thereof. A switch-over between two different light distributions is made possible by a movement of the moving member between the two positions in the headlight, such that the gas discharge seems to be shifted by the switch-over for a respective region of the reflector, whereby different light distributions are created. Preferably, the moving member is the outer bulb of the discharge lamp, on which two lenses are arranged and which is rotatable about the optical axis.

Abstract: In a lighting system for motor vehicles, light from a HID or MPXL lamp is collected by a collector which surrounds the light source at least partly and is guided further to a separator of optical waveguide material, which separator forms a desired light beam via a specially shaped light outlet surface so as to obtain as high as possible a light output.

Abstract: A discharge lamp and a headlight for a motor vehicle are proposed. A moving member is provided, which is movable between at least two positions, for switching over between different light distributions. It comprises at least one optically active element, preferably a lens, which generates an image of the gas discharge which is shifted away from the actual location thereof. A switch-over between two different light distributions is made possible by a movement of the moving member between the two positions in the headlight, such that the gas discharge seems to be shifted by the switch-over for a respective region of the reflector, whereby different light distributions are created. Preferably, the moving member is the outer bulb of the discharge lamp, on which two lenses are arranged and which is rotatable about the optical axis.

Abstract: The invention relates to a gas discharge lamp, in particular a high-pressure discharge lamp for use in automobiles. The invention further relates to a lighting system with at least one light source, at least one light coupling system, at least one optical waveguide, and at least one light delivery system. Such lighting systems with a central light source and a distribution of the light over optical waveguides (i.e. suitable optical fiber systems) in remote locations are particularly suitable for applications in the automobile branch. For this application, a high brightness must be available already after a short run-up time of the lamp. To provide a gas discharge lamp with a high brightness, which makes available a sufficient brightness after a short period, a gas discharge lamp is proposed with a bulb which has an ellipsoidal discharge chamber in a central location, which chamber has a surface area with a maximum value of below 2.5 cm.sup.

Abstract: A reliable lighting system is proposed for utilizing the advantages of a centralized light system, wherein at least one optical fiber for the transport of at least a portion of the light of the light sources to at least one light emission location is provided, one of the light sources being a high-intensity gas discharge lamp, in particular a xenon lamp, and the other light source being a halogen lamp.

Abstract: In a lighting system for motor vehicles, light from a HID or MPXL lamp is collected by a collector which surrounds the light source at least partly and is guided further to a separator of optical waveguide material, which separator forms a desired light beam via a specially shaped light outlet surface so as to obtain as high as possible a light output.

Abstract: The invention relates to a gas discharge lamp, in particular a high-pressure discharge lamp for use in automobiles. The invention further relates to a lighting system with at least one light source, at least one light coupling system, at least one optical waveguide, and at least one light delivery system.

Abstract: A reliable lighting system is proposed for utilizing the advantages of a centralized light system, wherein at least one optical fiber for the transport of at least a portion of the light of the light sources to at least one light emission location is provided, one of the light sources being a high-intensity gas discharge lamp, in particular a xenon lamp, and the other light source being a halogen lamp.

Abstract: The capped high-pressure discharge lamp suitable for use in a vehicle headlight has a discharge vessel which is surrounded by an outer envelope. Current conductors extend from a respective electrode to a respective contact at a cap in which a first neck-shaped portion of the discharge vessel is secured. A return portion of one current conductor extends along an outside surface of the outer envelope. The outer envelope has a light-absorbing coating in a region near the first neck-shaped portion, at a side which is remote from the return portion. The outer envelope may have band-shaped coatings at either side, aside from the discharge path between the electrodes, at its side which faces the return portion. Stray light in the beam formed by the reflector and the lens of a head-light in which the lamp is used, is obviated. The bands provide for a rectilinear light/dark transition in said beam.