|
Posted on 01.17.08 by John @ 9:16 pm
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 shape of each tiny component dictates which piece it can attach to, a microfabrication technique known as self-assembly. Capillary forces – the same type of forces that make water move up a plant’s roots, and that cause the edge of a glass of water to curve upward – pull the pieces into position. Contact lenses with circuits, lights a possible platform for superhuman vision Last 6 posts in Science
Filed under: Science and Technology and Mad Science and Cool Comments:
|
My friend Greg sent this to me today. I’ll be first in line when these come out!
January 26th, 2008 at 8:11 pm
As a contact wearer myself, these seem very cool! Im in.