ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,505, issued on Feb. 11, was assigned to SEIKO EPSON Corp. (Tokyo).
"Optical module and head-mounted display apparatus" was invented by Tokito Yamaguchi (Azumino, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical module includes: an image element; a prism mirror that reflects image light emitted from the image element at an inner reflection portion; a combiner that reflects the image light from the prism mirror toward a pupil position; and a barrel that is disposed between the prism mirror and the combiner and that positions the prism mirror. The barrel includes a first positioning surface brought into contact with the prism mirror in a...