ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,987, issued on June 3, was assigned to Apple Inc. (Cupertino, Calif.).

"Electronic devices with optical assembly positioning systems" was invented by Matin Seadat Beheshti (Sunnyvale, Calif.) and Alexander B von Schulmann (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A head-mounted device may include optical assemblies for presenting images to a user. Optical assembly positioning systems may be used to adjust the spacing between the optical assemblies to accommodate different interpupillary distances. The optical assembly positioning systems may have motors, shafts rotated by the motors, nuts that receive the shafts and that are m...