Motor vehicle headlamps projecting a masked beam, in particular a dipped beam
AssigneeCibie Projecteurs
InventorsPierre Cibie, Norbert Brun
Life of this patent
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Abstract
The invention relates to a masked beam motor vehicle headlamp of the type comprising, in succession: a reflector (1); a light source (3); a masking screen (E) having a cutoff edge (A); and a converging lens (4). The headlamp is characterized in that the screen is fitted, beneath its cutoff edge (A) and at least in its central portion, with an opening suitable for allowing a portion of the light flux directed towards the screen to pass therethrough. Means are provided to direct said light flux passing through said opening so that it is combined with the light flux which is not intercepted by the screen, thereby improving the light characteristics of the masked beam as finally projected by the headlamp.
Claims12
A masked beam motor vehicle headlamp comprising, in succession:
- a reflector;
- a light source;
- a masking screen having a cutoff edge;
- and a converging lens;
- wherein the screen is provided beneath the cutoff edge with an opening which extends at least over a central portion of the screen and which is suitable for allowing a portion of a light flux directed toward the screen to pass therethrough;
- and wherein means are provided to direct a flux passing through said opening to be combined with the flux which is not intercepted by the screen thereby improving the light distribution characteristics of the masked beam as finally projected by the headlamp.
Dependencies are inferred from the claim text.