Optical system for a pixelized light beam

A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising:

• a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source,
• a second mirror arranged to reflect the rays reflected by the first mirror, and
• a third mirror arranged to reflect the rays reflected by the second mirror so as to correct field aberrations;
• and
• a control unit including a processor associated with a memory storing a computer program comprising program-code instructions for the execution of a method comprising:
• provision of a setpoint for the distribution of light to be produced by the projection of the pixelized light beam;
• determination of a distribution of light intensities over the pixelized light source corresponding to the setpoint and compensating for a distortion of the distribution of light by the optical system;
• emission, by the pixelized light source, of a pixelized light beam having the determined distribution of light intensities;
• and
• projection, by the optical system, of the pixelized light beam emitted by the light source.

A method for projection of a pixelized light beam by a luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to reflect the rays reflected by the second mirror so as to correct field aberrations, wherein the method comprising:

• provision of a setpoint for the distribution of light to be produced by the projection of the pixelized light beam;
• determination of a distribution of light intensities over the pixelized light source corresponding to the setpoint and compensating for a distortion of the distribution of light by the optical system;
• emission, by the pixelized light source, of a pixelized light beam having the determined distribution of light intensities;
• and
• projection, by the optical system, of the pixelized light beam emitted by the light source.