ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,436, issued on March 31, was assigned to Nikon SLM Solutions AG (Luebeck, Germany).
"Device and apparatus" was invented by Karsten Neumann (Luebeck, Germany), Arne Neef (Luebeck, Germany), Bastian Lampert (Luebeck, Germany) and Daniel Brueck (Luebeck, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "We describe a device for calibrating an irradiation system of an apparatus for producing a three-dimensional workpiece, the irradiation system comprising an irradiation unit for selectively irradiating an irradiation beam onto an irradiation plane, wherein the device comprises: a control unit configured to control the irradiation system to irradia...