US Patent Issued to AMS-OSRAM on Nov. 11 for "Interference filter, optical device and method of manufacturing an interference filter" (Austrian, Belgian Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,468,077, issued on Nov. 11, was assigned to AMS-OSRAM AG (Premstatten, Austria).

"Interference filter, optical device and method of manufacturing an interference filter" was invented by Deborah Morecroft (Premstatten, Austria), Gerhard Eilmsteiner (Leoben, Austria) and Manuel Koch (Antwerp, Belgium).

According to the abstract* released by the U.S. Patent & Trademark Office: "An interference filter comprises a substrate, a filter stack and at least one absorption layer. The filter stack comprises alternating layers of optical coatings with different refractive indices arranged on the substrate. The at least one absorption layer is comprised of an optically absorbing material which is ...