Why Sunglasses Turn Your Phone Screen Blank

Blonde girl using her smartphone

You’re sitting on the deck with a cold drink and nothing to do but watch the world go by. Suddenly, you hear the telltale sound of a text message arriving on your phone. You dutifully attempt to read the message to discover that you can’t see it through your sunglasses. The sunglasses have effectively blanked the screen. So what gives? Not being able to read a mobile screen while wearing sunglasses is a fairly common problem. This article will explain the science behind it for those who are interested. At…

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