ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,556, issued on May 6, was assigned to CANON K.K. (Tokyo).
"Zoom lens and image pickup apparatus" was invented by Shunji Iwamoto (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 a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a rear unit having a plurality of lens units, and distances change between adjacent lens units during zooming. A predetermined condition is satisfied."
The patent was filed on Oct. 31, 2023, under Application No. 18/498,090.
*Fo...