ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,679, issued on March 17, was assigned to The Regents of the University of California (Oakland, Calif.).

"Diffractive optical network for reconstruction of holograms" was invented by Aydogan Ozcan (Los Angeles) and Md Sadman Sakib Rahman (Los Angeles).

According to the abstract* released by the U.S. Patent & Trademark Office: "An all-optical hologram reconstruction system and method is disclosed that can instantly retrieve the image of an unknown object from its in-line hologram and eliminate twin-image artifacts without using a digital processor or a computer. Multiple transmissive diffractive layers are trained using deep learning so that the diffracted light from an arbitrary ...