Carlos Mastrangelo is a professor of electrical and computer engineering at the University of Utah who could not look and focus on objects anymore. He invented smart glasses made of liquid lenses that automatically focus on whatever the wearer is looking at (far away or close). Compared to ordinary glasses, the smart glasses do not have to be put on and off all the time. A distance sensor in the bridge of the glasses uses infrared light to calculate the distance between the glasses and an object. The sensor tells “actuators” to reshape how the liquid lenses are curved.
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