ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,468,162, issued on Nov. 11, was assigned to SEIKO EPSON Corp. (Tokyo).
"Virtual image display" was invented by Atsushi Saito (Chino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A virtual image display device includes an image light generating device, an infrared light emitting device, an infrared light receiving device, a first light guide optical system, and a second light guide optical system. The first light guide optical system includes a first light guide member, a first incident-side diffraction element, and a first emitting-side diffraction element. The second light guide optical system includes a second light guide member, a second inci...