ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,436,372, issued on Oct. 7, was assigned to CANON K.K. (Tokyo).
"Zoom lens, image pickup apparatus, and imaging system" was invented by Masato Katayose (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 positive refractive power, a second lens unit having negative refractive power, and a subsequent unit including a plurality of lens units. A distance between adjacent lens units changes during zooming. The first lens unit does not move and the second lens unit moves during zooming. The first lens unit consists of, in order from the object side to the i...