Contact lens has electronic circuit built into it

      Home » Science & Technology » Contact lens has electronic circuit built into it

Contact lens has electronic circuit built into it

This seems to have a huge area of interest for the military, imagine data passing before your eyes if you are flying or sighing equipment.

Movie characters from the Terminator to the Bionic Woman use bionic eyes to zoom in on far-off scenes, have useful facts pop into their field of view, or create virtual crosshairs.

Engineers at the University of Washington have for the first time used manufacturing techniques at microscopic scales to combine a flexible, biologically safe contact lens with an imprinted electronic circuit and lights.
... Quote:
Looking through a completed lens, you would see what the display is generating superimposed on the world outside.

This is a very small step toward that goal, but I think it's extremely promising.
said Babak Parviz, a UW assistant professor of electrical engineering.

There are many possible uses for virtual displays. Drivers or pilots could see a vehicle's speed projected onto the windshield. Video-game companies could use the contact lenses to completely immerse players in a virtual world without restricting their range of motion. And for communications, people on the go could surf the Internet on a midair virtual display screen that only they would be able to see.

The prototype device contains an electric circuit as well as red light-emitting diodes for a display, though it does not yet light up. The lenses were tested on rabbits for up to 20 minutes and the animals showed no adverse effects.

Ideally, installing or removing the bionic eye would be as easy as popping a contact lens in or out, and once installed the wearer would barely know the gadget was there, Parviz said.

Building the lenses was a challenge because materials that are safe for use in the body, such as the flexible organic materials used in contact lenses, are delicate. Manufacturing electrical circuits, however, involves inorganic materials, scorching temperatures and toxic chemicals.

Researchers built the circuits from layers of metal only a few nanometers thick, about one thousandth the width of a human hair, and constructed light-emitting diodes one third of a millimeter across. They then sprinkled the grayish powder of electrical components onto a sheet of flexible plastic.

The prototype contact lens does not correct the wearer's vision, but the technique could be used on a corrective lens, Parviz said. And all the gadgetry won't obstruct a person's view.

Much more on site
 http://uwnews.washington.ed...

contact-lens-circuit.jpg - 39.72kb
By netchicken: posted on 18-1-2008








Contact lens has electronic circuit built into it | [Login ]
Powered by XMB
Privacy Policy