ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,677, issued on Sept. 30, was assigned to Canon K.K. (Tokyo).
"Optical apparatus and image-capturing apparatus" was invented by Toru Ishimasa (Kanagawa, Japan), Mitsuru Morohashi (Tokyo), Toshihiro Ogawa (Tokyo) and Kohei Matsumoto (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An optical apparatus includes first and second lens groups, a guide barrel having a straight-guiding groove, a cam barrel, and an interlocking member having a first coupling portion. The cam barrel includes a first cam groove that moves the first lens group and a second cam groove that is different from the first cam groove and moves the interlocking member. ...