| 摘要 |
A vehicular headlamp capable of moving an auxiliary light distribution pattern in the horizontal direction by pivoting an auxiliary lamp fixture unit in which degradation in the visibility of the road surface ahead of the vehicle caused by movement of an auxiliary light distribution pattern is substantially reduced. The brightness of a low-beam light distribution pattern formed by a headlamp unit is partially reinforced with auxiliary light distribution patterns formed by a pair of auxiliary lamp fixture units. When the vehicle turns, one of the auxiliary light distribution patterns is moved in the same direction with an upward displacement, whereby sufficient visibility ahead of the vehicle is assured. As a result of this movement, the hot zone of the auxiliary light distribution pattern is separated from the hot zone of the low-beam light distribution pattern. Since the hot zone is moved on the road surface at a distance from the vehicle, the illumination intensity of the hot zone on the road surface ahead of the vehicle is reduced. Accordingly, the road surface ahead of the vehicle will not become relatively dark in a region between the hot zones of the basic and auxiliary light distribution patterns due to contrast with the hot zones. |
