OPTICAL DETECTION SYSTEM FOR A MOTOR VEHICLE, AND DEVICE FOR CLEANING SUCH A SYSTEM

The invention relates to a device for cleaning an optical sensor (2) of an optical detection system of a motor vehicle, which comprises means for projecting (4) a cleaning liquid onto an external surface (20) of this optical sensor (2). The device comprises suction means (7), of which a chamber (5) opens onto at least one portion of the periphery of this optical sensor (2).