Lampshade and lamp

The lampshade comprises a lampshade body, the lampshade body is provided with a lamp body installation area, the lampshade body comprises a plurality of lampshade plates, the lampshade plates are spliced to define the lamp body installation area, and the adjacent lampshade plates are detachably connected. According to the utility model, various forms of expansion design can be carried out through the modularized lampshade plate, and lamp forms with different structural forms can be formed through free disassembly and assembly, so that during production and manufacturing, the threshold of manufacturers is lowered, the manufacturing procedures are reduced, and workers only need to finish simple split charging work. The lampshade plate can be made of a waste PCB (printed circuit board) FR-4, the unique and novel lampshade is formed by simply splicing and orderly arranging FR-4 sheets, the force sense and the aesthetic feeling of the materials can be shown to the maximum extent, meanwhile, the waste PCB is well r