US Patent Issued to CANON on Dec. 23 for "Zoom lens, image pickup apparatus having the same, and imaging system" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,504,608, issued on Dec. 23, was assigned to CANON K.K. (Tokyo).

"Zoom lens, image pickup apparatus having the same, and imaging system" was invented by Kenji Shinohara (Tochigi, Japan).

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