ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,445, issued on June 30.
"High-speed automatic film-foreign substance detection apparatus" was invented by Jin Ho Kim (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a high-speed automatic film-foreign substance detection apparatus, including: a stage on which a sample is mounted; a plurality of side light units arranged on an upper side surface of the stage to irradiate side light toward a sample during an operation of a low-magnification optical module; a low-magnification optical module installed at an upper side of the stage and generating a low-magnification image by capturing the sample so th...