this post was submitted on 14 Aug 2024
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Polarized sunglasses and visors don't match, kids (lemmy.ml)
submitted 2 years ago by datendefekt@lemmy.ml to c/motorcycles@lemmy.world
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Just found out that polarized sunglasses and helmet visors are a bad combination. I was greeted with a whole new colorful world!

Seriously, it almost made me nauseous.

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[–] BearOfaTime@lemm.ee 2 points 2 years ago (1 children)

It's even worse if the polarization of each is rotated.

The closer to 90° from one polarized lens to the next, the less light comes through. At 90° rotation lens-to-lens, all light is blocked.

Try it with your sunglasses and the visor removed from the helmet. Slowly rotate the visor and you should see it get darker and darker.

[–] datendefekt@lemmy.ml 3 points 2 years ago

It's just my sunglasses that are polarized, not the visor itself. Looking at glass or plexiglass with a filter, you see colors a little like this: