Artificial Eye
Smart pupil contracts in UK artificial eye
Researchers
at Nottingham Trent University have
created an artificial eye with a cosmetic
pupil that can dilate and contract in response to light.
This
artificial eye aims to solve the problem of eye that is different sized pupil
at night or bright sunlight.
The
artificial pupil is a dielectric elastomer
(A natural or synthetic polymer having elastic
properties) actuator made from a soft silicon disc with stretchable
carbon electrode on each side. Applying a voltage across the electrodes cause
electrostatic force with squashes the disc making it thinner and wider.
An
oversized prototype eye took 1.5kv to 660𝞵A.
This
prototype is made from acrylic resin and powered by a battery; it includes a
light sensor and controller to calculate how much power needed to achieve the
appropriate size pupil.
Note: The pupil is a hole located in the center of the iris of the eye that allows light to enter the retina…
now you can match the artificial eye concept with the function of pupil you can
get some idea about artificial eye..
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