Illuminating device and projection equipment

The utility model discloses a lighting device and projection equipment, relates to the technical field of projection, and aims to reduce the size of the projection equipment. The lighting device comprises a color wheel assembly, a lens assembly, a digital micromirror wafer and a galvanometer which are installed in a shell. The shell is provided with a light inlet hole and a light outlet hole, and the light inlet side of the lens assembly faces the light inlet hole. The lens assembly comprises a prism assembly, the prism assembly is used for receiving a light beam of the light incident side of the lens assembly and enabling the light beam to sequentially pass through the prism assembly, the digital micromirror wafer, the prism assembly and the galvanometer, and the light emergent side of the galvanometer faces the light emergent hole. Wherein the color wheel assembly comprises a color filter wheel and a fixing part, the color filter wheel is rotatably connected with the fixing part, and the fixing part is in c