Sunglasses, the built-in visors, and the blue-green colored glass at the top of the windshield don’t cut it when the sun is rising/setting and in the middle of your line of sight. Why haven’t manufacturers tried to solve this safety issue with a wider-reaching solution yet? Or if they have, why weren’t the proposed solutions successful?
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It’s a very hard problem to solve, because the light source (the sun) is right where you need to be looking for obstacles. So you’re trying to look where you can’t see anything.
There’s no real solution to it; even camera images will be washed out from the sunlight and fail to show anything aside from the sun, the sky, and a black foreground.
The closest you can get is the solution in self-driving vehicles: radar-sensors that can detect vehicles in front of you. However, these are expensive and not super-selective; they’ll detect when a car-sized (or larger) object is in front of them, but not if there’s a box or a pothole in the road.
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