US Patent Issued to RICOH on Oct. 21 for "Light guide and virtual-image display device" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,582, issued on Oct. 21, was assigned to RICOH COMPANY LTD. (Tokyo).

"Light guide and virtual-image display device" was invented by Naoki Nakamura (Saitama, Japan), Masahiro Itoh (Kanagawa, Japan), Yoshifumi Sudoh (Kanagawa, Japan), Susumu Momma (Kanagawa, Japan), Shun Okazaki (Kanagawa, Japan), Shigenobu Hirano (Kanagawa, Japan), Yasuo Katano (Kanagawa, Japan), Kenji Kameyama (Kanagawa, Japan), Norikazu Igarashi (Kanagawa, Japan) and Aino Hasegawa (Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A light guide includes light guiding members including first and second light guiding members, an optical entrance having a plane on which th...