Monday July 24th 2017

Auto-focus eyeglasses rely on liquid lenses

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.

Nazmul Hasan is the first to admit that the glasses he helped design may not be comfortable — or look cool. “They’re not very fashionable,” he concedes. “And they’re heavy,” notes this graduate student in engineering at the University of Utah in Salt Lake City.

Still, these glasses are truly special. The lenses in normal glasses curve in a specific way to help a person’s eyes focus on something close or far away. Not everyone who needs glasses requires the same curvature. So one person’s glasses will not necessarily work for someone else. In contrast, the glasses that Hasan and his team designed can be adjusted to meet anyone’s visual needs.

 

Read more at Science News for Students, here.

 

Image courtesy DAN HIXSON/UNIVERSITY OF UTAH COLLEGE OF ENGINEERING

More from category

The Internet of Things wants to link all facets of our world
The Internet of Things wants to link all facets of our world

A 94Fifty looks like an ordinary basketball. You can inflate, dribble, pass, shoot, swoosh and slam-dunk it. But [Read More]

Star Trek technology becomes more science than fiction
Star Trek technology becomes more science than fiction

Fifty years ago, the first episode of Star Trek aired. It started as a quirky science-fiction television show that [Read More]

A woman’s place is in science
A woman’s place is in science

Last October in a noisy ballroom in Nashville, Tenn., six girls sat at a round table to design a spacecraft that could [Read More]

What medicine can learn from squid teeth
What medicine can learn from squid teeth

Many types of squid have razor-sharp teeth. They just are not where you’d expect to find them. Each of the [Read More]

Archives