US Patent Issued on July 7 for "Convex-lensed zoetrope with central image hub" (Massachusetts Inventor)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,675,933, issued on July 7.

"Convex-lensed zoetrope with central image hub" was invented by Rufus Butler Seder (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A convex-lensed zoetrope for providing bright, clear, and straight-on animation. An image hub retains images in series for animation, and an outer drum concentrically rotates with the image hub. The outer drum is at least partially transparent, and a plurality of convex Fresnel lenses retained along a ring shape form a lens structure retained by the outer drum. During rotation of the outer drum, the lens structure, and the inner image hub, the animation of images retained on the ima...