An image sensor washing system with a nozzle assembly for cleaning a vehicle's external wide-angle image sensor's objective lens surface and washing off accumulated image distorting debris, comprising: an external image sensor (10, 18, 112, 312, 612, 712, 812, 1012) configured to generate an external image sensor signal and having an image sensor housing (11, 111) which supports an external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022) having a selected field of view, said image sensor being substantially exposed to an ambient environment; a nozzle assembly (110, 610, 710, 810, 1010) to selectively spray washing fluid onto said external objective lens surface, said spray being aimed across said selected field of view along an aiming angle which is aimed at a selected aiming angle; and said nozzle assembly (110, 610, 710, 810, 1010) includes a housing fixture (711, 811, 911, 1011) being configured to wrap around or encircle and support said image sensor housing (11, 111) and having a fluid inlet (142, 342, 642, 742, 842, 942, 1042) in fluid communication with a nozzle head (130, 132, 230, 232, 330, 630, 730, 830, 930, 1030) which is supported and aimed by said housing fixture (711, 811, 911, 1011) to spray washing fluid toward said external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022) and across said image sensor's field of view at said selected aiming angle; wherein said nozzle head is configured with a fluidic oscillator (501, 1200, 1300) which, when pressurized with washing fluid, generates a high velocity spray with a wide fan angle and is placed near a periphery of the external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022); and characterised in that said fluidic oscillator (501, 1200, 1300) is in fluid communication with an internal fluid transmission lumen of the housing fixture (711, 811, 911, 1011) and provides fluid communication from said fluid inlet wherein said housing has an upwardly projecting boss which defines the distal most portion of a substantially rigid enclosure having a cavity in fluid communication with said internal fluid transmission lumen and wherein said cavity has opposing left and right openings which are in fluid communication with said internal fluid transmission lumen. an external image sensor (10, 18, 112, 312, 612, 712, 812, 1012) configured to generate an external image sensor signal and having an image sensor housing (11, 111) which supports an external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022) having a selected field of view, said image sensor being substantially exposed to an ambient environment; a nozzle assembly (110, 610, 710, 810, 1010) to selectively spray washing fluid onto said external objective lens surface, said spray being aimed across said selected field of view along an aiming angle which is aimed at a selected aiming angle; and said nozzle assembly (110, 610, 710, 810, 1010) includes a housing fixture (711, 811, 911, 1011) being configured to wrap around or encircle and support said image sensor housing (11, 111) and having a fluid inlet (142, 342, 642, 742, 842, 942, 1042) in fluid communication with a nozzle head (130, 132, 230, 232, 330, 630, 730, 830, 930, 1030) which is supported and aimed by said housing fixture (711, 811, 911, 1011) to spray washing fluid toward said external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022) and across said image sensor's field of view at said selected aiming angle; wherein said nozzle head is configured with a fluidic oscillator (501, 1200, 1300) which, when pressurized with washing fluid, generates a high velocity spray with a wide fan angle and is placed near a periphery of the external objective lens surface (22, 122, 222, 322, 622, 722, 822, 1022); and characterised in that said fluidic oscillator (501, 1200, 1300) is in fluid communication with an internal fluid transmission lumen of the housing fixture (711, 811, 911, 1011) and provides fluid communication from said fluid inlet wherein said housing has an upwardly projecting boss which defines the distal most portion of a substantially rigid enclosure having a cavity in fluid communication with said internal fluid transmission lumen and wherein said cavity has opposing left and right openings which are in fluid communication with said internal fluid transmission lumen.