The age of the bifocal is over: a firm called PixelOptics has designed a pair of glasses for which the focal length can be adjusted at the touch of a button. How long until they can do so much more? These glasses — in which a layer liquid crystal is placed inside the lens and, when activated by an electric current, it alters it's refractive properties.
CES 2015: With Tiny New Computer, Intel Pushes for More Bearable Wearables | MIT Techno... - 0 views
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Electronic eyeglasses to hit the US by the end of 2010 - 1 views
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