The top one is diffused, bottom one untouched and only shining forward like a laser.
This is obviously no special flashlight, but rather a simple example of how to fix/address the obvious problems with blinding LED headlights mentioned in this post…
I dunno how better to explain it, except when I had bright headlights coming up on my rear end, and I wished I had dynamite to throw back their way because they blinded me from my rear view mirror. And that was from around 15 years ago.
I was driving my own car where I very carefully adjusted my headlight angles, on an abandoned bridge in the middle of the night. Not the only time I did that either, but I always made sure my headlights wouldn’t blind the driver in front of me.
But the dude behind me totally blinded me through all my mirrors.
I actually tried to adjust my rearview mirror to blind them back, not easy to do on the go when the dude driving behind you has a big truck and small dickhead behind you…
I’m sorry that happened to you. Being blinded by all mirrors is impressive, but I can imagine the kind of truck that does so.
You might want to check if your side mirrors aren’t set wrong. They should be angled down a little, no sense in looking at the sky through them. This helps to prevent you from being blinded through the side mirrors. For the main rear view mirror there should be this little toggle on the bottom. With this toggle you can quickly flip the mirror down to a second shaded mirror. This way you can still use the mirror, but not get blinded by it. I don’t know if all cars have this, but my old cheap car in the 80s had it, so I think it’s pretty standard. My current car, and presumably a lot of modern cars, has a auto darkening feature. When there is a chance of being blinded, it auto darkens uniformly, just like a welding shield. This helps a lot.
My advice if you get annoyed by other people whilst driving, is to stay calm and focus on yourself and your own driving. Be sure you drive safe, look out for other people in the road you might have missed due to being distracted by other assholes. Do everything you can to not let it get to you and make the roads safer for everyone.
I hear you all the way around there, and yes I had my mirrors set correctly, and am aware of the rear view flipper shader thing. But what do when the douchebag behind you is in a huge truck, right on your ass and stays right on your ass with full on bright lights?
The dude was blinding me so badly from behind that I wouldn’t have even been able to see a pedestrian or much of any surprise creature or object in front of me.
Honestly, in hindsight, maybe I could have turned on my emergency flashers and pulled over as if my vehicle had just broke down or something, but seriously I think that dude was getting his rocks off by deliberately blinding me. ☹️