Neat News 509 (added 2017-05-23)
Hologram Miniturization

Public Domain by Epzcaw
Ultra thin so-called nano-holograms have been built, much thinner than a human hair. This opens the possibility to integrate them in devices such as smart phones.
Ultra thin so-called nano-holograms have been built, much thinner than a human hair. This opens the possibility to integrate them in devices such as smart phones.