Motor vehicle headlight having between the light source and the reflector elements inserted dioptric

摘要

The headlamp has a light source (10), reflector (20) and front glass (30). A dioptre lens (40b) is selectively interposed between the source and a reflector zone, modifying the beam by refraction. The dioptre has internal surfaces (41b) generally cylindrical, with its axis close to the reflector optical axis (A), which is near the source. The dioptre external surface (42b) is inclined progressively, relative to the internal surface, to defocus the source. This is in the horizontal optical axis and the vertical above and below the axis. This ensures shifting of the source image and dioptre extended angle laterally only. The dioptre internal surface may be a cylinder of revolution and there may be two dioptre lenses.