Dr. Isao Echizen at Japan's National Institute of Informatics has spent the better part of two years cooking up a pair of specs that render people's faces undetectable to autofocusing cameras and (with any luck) the facial recognition tech that power the web's social services.
The Privacy Visor, created by the government-affiliated institute and an eyeglass maker in Japan’s Fukui prefecture, uses unique angles and patterns on its lens that reflect or absorb light. This prevents the recognition systems in digital cameras and smartphones from spotting a human face in a shot and focusing on it.
Tests with cameras on smartphones showed that the eyeglasses were able to trick the facial-recognition system 90% of the time.
See the full story here: http://blogs.wsj.com/digits/2015/08/08/eyeglasses-with-face-un-recognition-function-to-debut-in-japan/?mod=ST1