‘Fish-eye’ contact lens auto-focus
#Cosmoread: Contact lenses that can be auto-focus on objects both far and near, a new pair of eyes that you do not wear out with age to imagine wearing a pair. That goal – elephant nose fish retina induced by light gathering capabilities – took a step closer to a new study published today.
The authors say the research is called presbyopia, a vision condition; a stiffening of the eye’s lens that makes it hard to focus on objects close together can help people. The condition affects 1 billion people worldwide.
Hongrui Jiang, a professor of engineering at the University of Wisconsin, said self-correcting contact lens bifocals, trifocals or may eliminate the need for laser corrective surgery.
“The elderly, the young can be a good way to restore vision,” Jiang said in the study published in the Proceedings of the National Academy of Sciences.
Today’s report, where muddy water African elephant nose fish swims under conditions of low light like a tiny sensor that can acquire images focuses on a new design.
Innovation Inspired by animals
Collect fish retina and uses wavelengths of light to see the fish, helping to accelerate, with reflective sidewalls is a series of deep cup-like structures. Engineers light thousands of collectors of aluminum that reflects light coming in sidewalls coated with a small device made.
Jiang says there are two ways that auto-focus cameras are working. A focus on an object for determining uses a small infrared beam, takes the second image and the image boundaries, the operator can tell that it is out of focus or sharpness of the analyzes is.
“We are taking that approach,” Jiang said. “The key is to have an integrated imager lens.”
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Google on contact lenses that teams such glaucoma eye pressure that can indicate the presence of certain medical conditions can give information about the wearer are built. Another group at Microsoft is a contact lens wearer to sense blood glucose information that can be displayed is formed.
Working is a working prototype of an auto-focus lens, but still five to 10 years away, according to Jiang.
“It is a very challenging project,” Jiang said. “You get a tunable lens, a power supply, lens and electronics need to run, and everything needs to be flexible.”
Jiang says the optimal power supply from a small embedded solar cell collects and stores energy that is both.