US Patent Issued to Nikon on May 19 for "Zoom optical system, optical apparatus and method for manufacturing the zoom optical system" (Japanese Inventor)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,858, issued on May 19, was assigned to Nikon Corp. (Tokyo).

"Zoom optical system, optical apparatus and method for manufacturing the zoom optical system" was invented by Fumiaki Ohtake (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system comprising a first lens group (G1) having a positive refractive power and a rear group (GR) having a plurality of lens groups, the first lens group and the rear group being arranged side by side on the optical axis in order from an object side, wherein: when the magnification is varied from a wide-angle end to a telephoto end, the distance between the first lens group (G1) and the rear group (GR) c...