ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,903, issued on April 14, was assigned to MITUTOYO Corp. (Kawasaki, Japan).
"Optical device" was invented by Keiji Murata (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device comprises: an image forming lens disposed in an optical path between an objective lens and an imaging device, the image forming lens forming an image of light incident via the objective lens on an imaging surface of the imaging device; a beam splitter disposed in an optical path between the objective lens and the image forming lens; a first lens group disposed in an optical path between the objective lens and the beam splitter and having a positive ...