Ask Lemmy@lemmy.world · 1 day ago

Why is the sky purple in the reflection of my friend's glasses?

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Why is the sky purple in the reflection of my friend's glasses?

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YarHarSuperstar@lemmy.world to

Ask Lemmy@lemmy.world · 1 day ago

They’re just regular (prescription) glasses. The sky looks normal through them. What’s the deal?

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blue light filtering
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  It is because they have blue light filters on the glasses. It’s common now days.

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