Driving in heavy rain, I’m always intimidated by the spray thrown up when passing a heavy lorry. This obscures my vision and compromises safety, irrespective of how fast the wipers are moving.
Today’s invention is a wide-angle camera which is mounted on a stalk and which can be extended forwards of the windscreen and ahead of all of the oncoming spray. The camera lens would project with a lens cap in place to keep it dry as it penetrates the spray. Then the cap would be moved out of the way (its small aperture would be much easier to keep rain-free than a whole windscreen).
This allows the driver of a vehicle to view a monitor inside the screen which shows a clear picture of the road ahead.