Photos: Eye on 'switchable' lenses

$switchable liquid crystal diffractive lenses$

switchable liquid crystal diffractive lenses

Researchers at the University of Arizona have demonstrated eyeglass lenses, or what's called switchable liquid crystal diffractive lenses, that could potentially replace biofocals for far-sighted people. The flat lenses have focusing power that adjusts based on what the person is viewing.

Published: July 19, 2006 -- 11:47 GMT (04:47 PDT)
Caption by: Bill Detwiler
prototype

Switchable liquid crystal lenses: a prototype of the assembled adaptive eyewear.

Published: July 19, 2006 -- 11:47 GMT (04:47 PDT)
Caption by: Bill Detwiler

$switchable liquid crystal diffractive lenses$

Photos: Eye on 'switchable' lenses

Researchers demonstrate flat lenses with focusing power that adjusts based on what the person is viewing.

switchable liquid crystal diffractive lenses

Researchers at the University of Arizona have demonstrated eyeglass lenses, or what's called switchable liquid crystal diffractive lenses, that could potentially replace biofocals for far-sighted people. The flat lenses have focusing power that adjusts based on what the person is viewing.

Published: July 19, 2006 -- 11:47 GMT (04:47 PDT)

Caption by: Bill Detwiler