ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,491, issued on Feb. 11, was assigned to Apple Inc. (Cupertino, Calif.).
"Electrostatic actuation for diffractive optical devices" was invented by Sebastien Bolis (Crolles, France) and Arnaud Pouydebasque (Varces-Allieres-et-Risset, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes first and second planar substrates having respective first and second faces and including first and second diffractive structure disposed respectively on the first and second faces. First and second planar electrodes are disposed respectively on the first and second faces. A mount holds the second planar substrate parallel to the first planar...