Bifocal lenses and the dizziness and discomfort that come from gazing through them could become a thing of the past, thanks to new liquid-crystal lenses that quickly switch between corrective states ...

For many farsighted people, having different pairs of glasses for different viewing distances has been the norm. But with new technology, one pair of glasses could do the trick. Adaptive liquid ...

Left and right Diagram showing how left circularly polarized (LCP) light is converted by the bifocal lens into separated beams of LCP light and right circularly polarized (RCP) light. (Courtesy: Fan ...

Researchers have shown how liquid crystals can be employed to create compound lenses similar to those found in nature. Taking advantage of the geometry in which these liquid crystals like to arrange ...

If you’re cursed with bifocals or fear they’re in your future, you’ll be glad to know optical scientists at the University of Arizona have been working on liquid-crystal eyeglass lenses that can ...

Electro-optical liquid crystal lenses exploit the voltage-dependent reorientation of anisotropic molecules to achieve dynamic tuning of focal length, aberration correction and multifocal functionality ...