ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,853, issued on Feb. 3, was assigned to SEIKO EPSON Corp. (Japan).
"Optical device and spectrometer" was invented by Kohei Yamada (Shiojiri, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: a second light source configured to emit laser light having a wavelength different from that of measurement light emitted from a first light source; a light splitter; a first mirror configured to add a first modulation signal to the measurement light and add a displacement signal to the laser light; a second mirror configured to reflect a second beam of the measurement light; a first color separator configured to separate the second ...