All of this is thanks to an earlier technology developed by a team of some of the same researchers. The flat lens design that uses this new artificial eye is called Metalens. It uses tiny nanostructures to focus light. In this way, the entire visible light spectrum can be focused on one point. In contrast, conventional lenses use multiple elements to achieve the same performance, making them bulky.
Before this recent breakthrough, the SEAS team stated that they could only produce metal lenses that were "the size of a piece" of Glitzer. "In contrast, their latest invention, which is about one centimeter in diameter, is larger, and it's better in this case because it's easier to use the technology in a variety of modern applications." For example, in cameras, one lens must be large enough to hold one Cover sensor to prevent vignetting.
As with any new technology, it may take years for metalenses to find their way to consumer devices, but their potential is unmistakable, with virtual and advanced headsets available in combination with even smaller computer chips Reality becomes so small and comfortable that technology becomes attractive to the average consumer.