ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,374, issued on Oct. 21, was assigned to Pilkington Group Ltd. (Lathom, Great Britain).
"Glass inspection" was invented by Simon Cherry (Wigan, Great Britain), Ian Ross Williams (Wigan, Great Britain) and Andrew Thomson (Newton-le-Willows, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of detecting a defect in a sheet of glass includes: (i) directing a converging beam from a source of illumination onto a surface of the sheet of glass to illuminate the defect; (ii) focusing an image capture device onto a first plane to image the defect in the sheet of glass; (iii) capturing a first image of the defect; (iv) carrying out an adjus...