Abstract: A collapsible lampshade frame has an upper ring, a lower ring and multiple ribs. The upper ring has a central mounting bracket, multiple radial supports and an outer ring. Each radial support has a bottom and multiple wavy recesses. The wavy recesses are formed on the bottom of the radial supports. Each rib has a distal end and a fork. The fork is formed in the distal end and engages the wavy recesses on the radial supports. When the forks are disengaged from the wavy recesses, the ribs can be pivoted so the frame occupies a small volume.

Abstract: A collapsible lampshade frame has an upper ring, a lower ring, multiple U-shaped ribs and multiple clips. The ribs have two longitudinal legs and a transverse leg. The transverse leg is formed between the longitudinal legs. The longitudinal legs respectively have a through hole, and the lower ring passes through the through hole. The clips are mounted on the upper ring and the transverse legs of the ribs to attach the ribs to the upper ring. When the clips are detached from the upper ring and the ribs, the ribs can be folded so the frame occupies a small volume.