ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,920, issued on April 21, was assigned to Apple Inc. (Cupertino, Calif.).
"Folded projection and detection system" was invented by Moshe Kriman (Tel Aviv, Israel), Maoz Ovadia (Kiryat Ono, Israel) and Dana Gal-Fuss (Tel Aviv, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes a substrate that includes a parallelepiped of a transparent dielectric material. The substrate is configured for propagation of a beam of optical radiation through the substrate along a beam path that includes multiple internal reflections within the substrate. The device further includes first and second optical metasurfaces disposed on one or mor...