There is a related article from 2020 linked at bottom about flat lens cameras https://phys.org/news/2020-03-focus-free-camera-flat-lens.html https://phys.org/n

There is a related article from 2020 linked at bottom about flat lens cameras https://phys.org/news/2020-03-focus-free-camera-flat-lens.html https://phys.org/news/2020-03-focus-free-camera-flat-lens.ht... It says it can focus everything at once. I don't understand how this works either but these two are probably similar science.