US Patent Issued to MATERION on Sept. 23 for "Near infrared optical interference filters with improved transmission" (American, Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,605, issued on Sept. 23, was assigned to MATERION Corp. (Mayfield Heights, Ohio).

"Near infrared optical interference filters with improved transmission" was invented by Robert Sprague (Acton, Mass.) and Shengyuan Bai (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interference filter includes a layers stack comprising a plurality of layers of at least: layers of amorphous hydrogenated silicon with added nitrogen (a-Si:H,N) and layers of one or more dielectric materials, such as SiO2, SiOx, SiOxNy, a dielectric material with a higher refractive index in the range 1.9 to 2.7 inclusive, or so forth. The interference filter is designed to ...