Photo of the metalens (made of silicon) mounted on a transparent, stretchy polymer film, without any electrodes. The colorful iridescence is produced by the large number of nanostructures within the metalens. (Image courtesy of the Capasso Lab/Harvard SEAS)
This artificial eye can automatically stretch to simultaneously focus and correct astigmatism and image shift
The Harvard John A. Paulson School of Engineering and Applied Sciences has developed a flat electronically-controlled artificial eye. It combines artificial muscle technology with metalens technology to create a tunable metalens that can change its focus in real time -just like a human eye. It is able to dynamically correct for aberrations such as astigmatism and image shift which the human eye simply cannot do.
There are a wide range of applications including cell phone cameras, eyeglasses and virtual and augmented reality hardware. The Harvard Office of Technology Development has protected the intellectual property relating to this project and is exploring commercialization opportunities.
The lens and the artificial muscle that goes with it are only 30 microns thick.
For details: Researchers combine metalens with an artificial muscle
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