ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,874, issued on Jan. 20, was assigned to Nikon Corp. (Tokyo).
"Optical system, optical apparatus, and method for manufacturing optical system" was invented by Fumiaki Ohtake (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system having high optical performance, an optical apparatus including the optical system, and a method for manufacturing the optical system are provided. An optical system used for an optical apparatus such as a camera includes a front lens group including a diffraction lens having a diffraction surface, and a rear lens group disposed on an image side of the front lens group. The optical system is configured so tha...