Researchers Made A Type Of Lens That Work Better Than Human Eyes

Since the earliest conceptions of photography, engineers, designers, and scientists have attempted generations after generations to create a type of lens that could mimic the way the human eye’s work. In spite of the numerous advancements made through the years, none ever came even close to the ability of our eyeballs.

Serious Game Changer

Very recently, a team of researchers from Harvard’s John A. Paulson School of Engineering and Applied Sciences (SEAS) has made a quantum leap in optical science that has a firm promise to revolutionize optical instruments today. From cameras to telescopes, VR/AR glasses, to your typical eyeglasses: This could seriously be a game-changer.

The new instrument is capable of adjusting its focal length and focus on objects in real-time due to it having an elastomer muscle embedded within. But at the same time, there’s none of the bulkiness like a traditional spherical lens. The instrument also has a couple of tricks that it can do that the human eyes can’t, like adjusting itself for astigmatism and image shift. These are the two causes behind vision blurriness.

'Metalens'

This is all thanks to some precursor techs that some members of the team had also developed. The flat lens design of this instrument was made possible by exploiting a concept known as a ‘metalens.’ It employs tiny nanostructures to conduct and direct light.

For this reason, it is possible for the lens to focus the entirety of the visible light spectrum through a single point on the lens. This explained its thinness in comparison to traditional lenses, which utilize multiple different elements in order to achieve this instead of a single mechanism, which is why it’s so bulky in comparison.

Before this breakthrough was made, the researchers admitted that they could only produce metalenses the size of a single grain of glitter. This time, they successfully managed to recreate a piece of metalens approximately one centimeter in diameter. Of course, the bigger they can make it, the better it is. It proved that metalenses could be used in a wider range of applications. For example, if they could make one big enough to cover the sensor of a modern camera, they could completely eliminate vignette.

Still, Quite A Long Way to Go

But don’t put too much hope into metalenses manifesting in your average consumer-grade tech just yet. Just like any innovation, it would often take years before they could reach the public domain. But there’s no mistaking the fact that the potential is there. Metalenses arrive just in time for the rapid miniaturization and optimization of computer chips. Things like AR/VR headsets could be made viable with metalenses that are quite bulky now.

This is the tech that could help in bringing compact and comfortable AR/VR headsets and glasses to consumers.