Light beam projection device provided with submatrices of light sources, lighting and headlight module provided with such a device

An optical light beam projection device for a motor vehicle, the optical light beam projection device comprising:

• in an upstream direction of propagation of light rays, a set of at least two associated submatrices each provided with primary light sources capable of emitting the light rays, each of the submatrices including a set of the primary light sources arranged as a rectangular array of at least two columns by at least two rows, each of the submatrices being disposed on a separate substrate;
• in the direction opposite to the upstream direction, a primary optical system including a lens, the lens having an input surface and an output surface, the input surface provided with a plurality of convergent optics, each convergent optic having a convex surface, each convex surface being associated with each of the submatrices disposed on the separate substrate and arranged in the direction opposite to the upstream direction thereof, the output surface of the lens having a plurality of sub-lenses, each sub-lenses having a parabolic shape, each of the sub-lenses having the parabolic shape outputting the light rays from corresponding plurality of convergent optics, a first separation between optical axes of two adjacent convergent optics corresponds respectively to a second separation between centers of corresponding adjacent submatrices.