SHADY BUSINESS: New and improved glasses that convert to sunglasses upon the wearer's command could soon hit the market thanks to a new discovery.
A new type of eyeglass lens that rapidly darkens when you want it to — eliminating the need to passively wait for light changes in your surroundings — is soon to become a reality, according to researchers at the Georgia Institute of Technology in the US.
There are considerable limitations to the transitional, or photochromic lenses currently on the market, which fail to darken inside cars or under baseball caps.
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