Originally Posted by
fietsbob
German Busch & Muller headlights put the optics engineers to work & came up with a shaped beam putting light on the street ,
not in the trees & the oncoming traffic's eyes..
I don't know if that's the one but a class I had told of a headlight on Mercedes Benz which would put the light where it was needed, sensing oncoming cars, levels of darkness, and even upcoming turns in the road. The cost was about $5000 per light. I think they were arrays of LEDs.