US Patent Issued to Lumileds on Jan. 28 for "Multi-gas sensors using non-dispersive infrared materials" (California Inventors)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,209,957, issued on Jan. 28, was assigned to Lumileds LLC (San Jose, Calif.).

"Multi-gas sensors using non-dispersive infrared materials" was invented by Claire Yue Gao (Fremont, Calif.), Hisashi Masui (Newark, Calif.) and Franklin Chiang (Campbell, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas sensing system measures a concentration of first and second gasses in a gas sample disposed in a cavity containing a porous scattering material. The first and second gas each have an absorption peak at a different wavelength. First and second emitters emit light having a spectrum that includes one of the different wavelengths. A single sensor, or mul...