Auto-focus eyeglasses rely on liquid lenses
While the prototype may be goofy-looking, you can’t beat its versatility
Stephen Ornes
Apr 4, 2017 — 7:10 am EST
They're not fashionable, but they're smart. The liquid lenses in these glasses automatically bring your book into focus.
Dan Hixson/University of Utah College of Engineering
This is one in a series presenting news on technology and innovation, made possible with generous support from the Lemelson Foundation.
With round lenses set in super-thick frames, these new eyeglasses look like they belong on a cartoon character. But what they lack in style, they make up for in smart design. Their lenses are made of glycerin — a thick, colorless liquid — encased in clear rubber. And without effort, they will focus on whatever the wearer looks at.
https://www.sciencenewsforstudents.org/article/auto-focus-eyeglasses-rely-liquid-lenses
