3-D printing technology brings bionic eye one step nearer
A new 3-D printing technique makes it viable to supply image sensor arrays on hemispherical surfaces.

A research group on the University of Minnesota has 3-D published an image sensor array onto a hemispherical floor for the primary time, taking a huge step closer to the advent of a bionic eye that might help blind or partially-sighted humans see.

The usage of a custom-constructed 3D printer, the group laid down a base layer of silver debris onto the surface of a hemispherical glass dome. The silver debris stayed in place and dried uniformly as opposed to jogging down the curved surface. They then used semiconducting polymer substances to print photodiodes (tiny devices that convert light into electricity) on top of the silver base. The resulting prototype ‘bionic eye’ was capable of convert light to power with 25 percent efficiency.

“Bionic eyes are usually notion of as technological know-how fiction, but now we are nearer than ever [to making them a reality] the use of a multi-fabric 3-d printer,” said Professor Michael McAlpine of the University of Minnesota. “we’ve got a long way to go to automatically print active electronics reliably, but our 3-D-revealed semiconductors are now starting to reveal that they might doubtlessly rival the performance of semiconducting devices fabricated in microfabrication facilities. Plus, we can easily print a semiconducting device on a curved surface.”

The crew plans to create a 2d prototype with greater mild receptors and develop a way of printing onto a smooth hemispherical cloth that can be implanted into a watch socket.

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