US Patent Issued to CANON on Sept. 1 for "Zoom lens, image pickup apparatus, and image pickup system" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,253, issued on Sept. 1, was assigned to CANON K.K. (Tokyo).

"Zoom lens, image pickup apparatus, and image pickup system" was invented by Nobuyuki Miyazawa (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A zoom lens includes a plurality of lens units including, in order from an object side to an image side, a first lens unit having negative refractive power, a second lens unit having positive refractive power, a third lens unit having negative refractive power, and a fourth lens unit having positive refractive power. A distance between adjacent lens units changes during zooming. The second lens unit includes at least one negative lens....