If you ve ever held a high-quality camera lens, the first thing you notice is the weight.
Thanks to layers and layers of thick glass hunks inside, they end up being very heavy.
The curved surfaces on a glass lens focus incoming light onto a camera s digital sensor.
The more precise and expensive the lens is, the better the image it will produce.
Thanks to years of refining the manufacturing processes for electronics, producing these metalenses will be relatively easy and cheap using the same techniques used for microchips.
Science AAAS via PetaPixel