Saturday February 24, 2018

Liquid Crystal Lenses May Replace Bifocals
  Posted by: Digg on Jul 15th, 2006 7:22 PM
Now Li, Nasser Peyghambarian, and a team from Arizona and from Georgia Institute of Technology in Atlanta have demonstrated a liquid-crystal-based lens that quickly switches its focusing power with the application of an electric signal to provide a distortion-free image of the entire field of view.

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