ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,640, issued on June 3, was assigned to Apollo Medical Optics Ltd. (Taipei, Taiwan).

"Optical system and interference objective module therof" was invented by Tuan-Shu Ho (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are interference objective modules comprising an objective, and an interference module comprising a reference plate disposed apart from the objective to provide a reference arm, a beam splitter to split a source light processed from the objective, and a sample plate to translate the split light from the beam splitter to provide a sample arm, wherein the interference module is configured to make a distance ...