Multiple-filament motor vehicle headlight 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. In a further embodiment of the invention, the reflector regions are shaped such that one headlight emits two headlight beams, both having a substantially horizontal bright/dark cut-off. According to a second aspect of the invention, a headlight unit for a motor vehicle comprises at least two reflectors with lamps arranged therein, such that each of the two reflectors is capable of emitting a light beam with and a further light beam without an approximately horizontal bright dark cut-off. In a further embodiment, combinations of AFS lighting functions are realized by the headlight unit according to the invention.

Dependencies are inferred from the claim text.