Patent ID: 6997587

Claim:
An illumination module for a motor vehicle lamp producing an illumination beam of the type with cutoff, comprising, arranged from back to front overall along a longitudinal horizontal optical axis (A—A), a reflector of the elliptical type which delimits a volume of reflection for light rays and which has a substantially elliptical surface of reflection, at least one light source which is arranged in the vicinity of a first focus of the reflector, and a convergent lens whose focal plane is arranged in the vicinity of the second focus of the reflector, the reflector having a horizontal flat surface of reflection with an upper face which is reflective, which delimits vertically towards the bottom the volume of reflection, the flat surface of the reflector having a front end edge, referred to as the cutoff edge, which is arranged in the vicinity of the second focus of the reflector, so as to form the cutoff in the illumination beam, the flat surface of the reflector being arranged in a horizontal plane passing overall through the focus of the reflector, wherein the flat surface of the reflector extends longitudinally towards the rear, from its cutoff edge, at least as far as the vicinity of the first focus of the reflector.