US Patent Issued to SEIKO EPSON on May 12 for "Optical device, spectroscopic device, and spectroscopic method" (Japanese Inventor)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,625,068, issued on May 12, was assigned to SEIKO EPSON Corp. (Japan).

"Optical device, spectroscopic device, and spectroscopic method" was invented by Kohei Yamada (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: an analysis optical system; and a length measurement optical system. The analysis optical system includes a moving mirror configured to reflect analysis light to add a first modulation signal to the analysis light, a gas cell with a gas that absorbs light of a predetermined wavelength sealed therein and configured to add a light absorption signal to the analysis light, and a first light receiving elemen...