ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,352, issued on Sept. 9, was assigned to Sony Semiconductor Solutions Corp. (Kanagawa, Japan).

"Composite diffraction element, instrument, and image projection system" was invented by Kazuhiko Nemoto (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present technology aims to provide a diffraction element that functions like a transmissive hologram, and more particularly, aims to provide a diffraction element suitable for forming an image projection system. The present technology provides a composite diffraction element that includes a stack structure including a first diffraction element, a second diffraction element, and a third ...