Headlight for a vehicle

摘要

The headlight has a one-piece reflector which includes an upper reflector portion with a light source for making a low beam, a lower reflector portion with another light source for making a fog light beam and a laterally positioned reflector portion for making a high beam. The lower reflector portion has a surface area which is comparatively small relative to the upper reflector portion. The light emitted from the other light source is reflected by the lower reflector portion in rays nearly parallel in a vertical longitudinal plane or inclined gently downward in the propagation direction. In the horizontal longitudinal plane light rays reflected from positions on the peak region of the lower reflector portion converge more as the distance of the position from the optic axis increases, light rays reflected from positions on the central region converge less as the distance of the position from the optic axis increases and light rays reflected from the edge region are nearly parallel. The lower reflector portion is shaped so that light emitted from the other light source is used effectively so that it requires only a comparatively small surface area and can be integrated in the reflector.