ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,717,214, issued on Aug. 25, was assigned to OLYMPUS Corp. (Tokyo).

"Optical device and endoscope" was invented by Jun Shinzato (Musashino, Japan) and Seiji Sakai (Chofu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical device includes: an optical system including a moving lens that moves in a direction along an optical axis; a moving frame including a first magnetic body and configured to hold the moving lens; a holding frame formed into a cylindrical shape by a non-magnetic body and configured to movably hold the moving frame on an inner circumferential surface along the optical axis; a drive unit including a magnet and configured to cau...