ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,816, issued on May 27, was assigned to RODENSTOCK GMBH (Munich).
"Optical element with a stack of layer packets, and method for producing the optical element" was invented by Stefan Radunz (Gilching, Germany) and Rudiger Scherschlicht (Unterhaching, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical element includes a substrate and an interferometric reflection-reducing layer system on at least one surface of the substrate. The layer system includes a stack of at least four successive layer packets, wherein each layer packet includes a first sub-layer with a first optical depth and a second sub-layer with a second optical depth which ...