ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,124, issued on Jan. 20, was assigned to ADDUP (Cebazat, France).

"Removable image-capture apparatus, kit and method for calibrating an additive manufacturing apparatus" was invented by Antoine Anneton (Cebazat, France), Raphael Vernet (Cebazat, France), Olivier Lauwers (Cebazat, France) and Ahmed-Amine Homman (Cebazat, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A removable image-capture apparatus (200) comprises an opening (202) intended to receive a calibration plate (10) bearing a reference marking (30) and possibly a test marking (40). The apparatus (200) comprises a source (204) of backlighting visible light situated beneath the openi...