ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,708, issued on Feb. 10, was assigned to SEIKO EPSON Corp. (Japan).
"Optical device and spectroscopic device" was invented by Kohei Yamada (Shiojiri, Japan) and Shoichi Takasuna (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: an incident optical system; an analysis optical system; and a length measurement optical system. The incident optical system includes a laser light source, and an incident light dividing element that divides the laser light. The analysis optical system includes a first light dividing element that divides the first divided light and then mixes the light, a first mirror that adds a first...