Polarized Sunglasses

Don’t be fooled by fakes! Did you know you can test polarized sunglasses before you purchase to make sure they are real? All you need is your cell phone. Open the display on your phone, hold the glasses over the top of the display. Slowly rotate the sunglasses and see the display darken. In some cases the cell phone display may disappear completely. This won’t hurt the phone, it just shows how much light is blocked by the polarized sunglasses. It might be a fun trick to show your customers and friends.