ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,849, issued on May 27, was assigned to SEIKO EPSON Corp. (Tokyo).
"Virtual image display device and optical unit" was invented by Tokito Yamaguchi (Azumino, Japan) and Mitsutaka Ide (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A virtual image display device includes a display element, a light-guiding system configured to guide imaging light that exits the display element, and a mirror member having a first surface where the imaging light that exits the light-guiding system is incident while being refracted and a second surface that reflects the imaging light that passes through the first surface and causes the imaging light to exi...