ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,416,823, issued on Sept. 16, was assigned to B612 GmbH (Hergiswil, Switzerland).

"Acousto-optic modulator" was invented by Jean-Michel Beaudouin (Hergiswil, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An acousto-optic modulator (10) comprising a piezoelectric transducer (20) with a first electrode (21), a second electrode (22), and a dielectric material (23) disposed between and in contact with said electrodes (21, 22), and an acousto-optic element (30) comprising at least two further dielectric materials (31, 32) with mutually different refractive indices, wherein said piezoelectric transducer (20) and said acousto-optic element (30) ar...