Wi-Fi eye lens

    A team of US and Finnish bio-engineers have embedded an antenna, radio receiver, control circuitry, and LED into a wearable contact lens.  So how they do they do it? In their research lab at the University of Washington, Seattle. At this point only rabbits can wear it, so you’ll still have to wait a couple more years for the bionic, Terminator-like HUD of your dreams.

The team, has successfully displayed a single, remotely-controlled pixel onto a contact lens worn by a rabbit. Power from an external battery is transmitted via RF to an antenna that runs around the edge of the contact lens (the gold ring that you see in the image below), so that the wearer’s vision isn’t obstructed. An integrated circuit harvests the energy, and then powers an LED (which emits a nice blue light, incidentally, and is focused by way of the entire contact lens being a Fresnel lens). The IC doesn’t do much else at the moment — it’s basically just a 450 picofarad storage capacitor built with a 130nm CMOS processor — but this is enough to discretely control an on-lens pixel from a remote radio source.

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