US Patent Issued to Nikon on Jan. 20 for "Optical system, optical apparatus, and method for manufacturing optical system" (Japanese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,870, issued on Jan. 20, was assigned to Nikon Corp. (Tokyo).

"Optical system, optical apparatus, and method for manufacturing optical system" was invented by Tomoki Ito (Tokyo) and Takuto Takemoto (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system is configured to include a plurality of lenses such that a final lens closest to an image side of the lenses includes a lens surface having a pole and that the following conditional expression is satisfied: 0.20greater thank/hgreater than0.50, where k is the height of the pole from an optical axis, and h is the effective radius of the lens surface having a pole. The optical system can ...