Cleaning device and system for vehicle-mounted optic surface and vehicle-mounted optic sensor with cleaning device

A first aspect of the invention refers to a cleaning device (10) for cleaning a vehicle-mounted optic surface (2), comprising a housing (11), the housing (11) comprising an opening (12) adapted to fit an optic surface (2), a fluid inlet (13) arranged to take in washer fluid, an at least one fluid discharge port (22) arranged to discharge washer fluid onto the optic surface (2), a first passage (23) in fluidic communication with the fluid inlet (13) and the at least one fluid discharge port (22) so as to guide the washer fluid from the fluid inlet (13) towards the at least one fluid discharge port (22) and a protruding part (20) that substantially surrounds the opening (12) so as to define an inner wall (21). The invention also refers to a cleaning system and to a vehicle-mounted sensor (1) comprising an optic surface (2) and a cleaning device (10).