ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,658, issued on Oct. 21, was assigned to KOITO MANUFACTURING Co. LTD. (Tokyo).
"Image display device" was invented by Yoichi Ogata (Shizuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image display device includes: a first image projection unit configured to project a first image; a beam splitter configured to reflect a part of light emitted from the first image projection unit in a first direction and transmit remaining light in a second direction; a retroreflection unit configured to retroreflect, to the beam splitter, light traveling from the beam splitter in one of the first direction and the second direction; a reflection unit conf...