DEVICE FOR CLEANING AN OPTICAL SURFACE OF AN OPTICAL SENSOR, DETECTION SYSTEM AND VEHICLE

The invention proposes a device for cleaning an optical surface of an optical sensor of a vehicle. The device includes at least one segment in the form of an arc of a circle having a cleaning fluid inlet, at least one cleaning fluid circulation channel, able to be supplied with cleaning fluid via the cleaning fluid inlet, the channel being delimited by a base and a cover, at least one nozzle for diffusing cleaning liquid towards the optical surface from the fluid circulation channel. The at least one nozzle includes a deflector capable of deflecting the jet of cleaning fluid at a certain angle towards the optical surface, the cover having a thickness, and the deflector being at least partially within the thickness of the cover. The deflector is better protected. The invention also relates to a detection system and to a vehicle.