US Patent Issued to RICOH on Sept. 9 for "Optical system, virtual image display device, and head-mounted display" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,343, issued on Sept. 9, was assigned to RICOH COMPANY LTD. (Tokyo).

"Optical system, virtual image display device, and head-mounted display" was invented by Yoshifumi Sudoh (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes: a first optical portion, on which image light from an image display element is incident; a light guide configured to guide the image light incident from the first optical portion; and a second optical portion configured to direct the image light guided in the light guide to an object. The first optical portion has an anamorphic surface having: a first shape in a first direction; and a sec...