Abstract: The present invention discloses a projector, including: a fastening base; an electric motor assembly, and a light source assembly, component are fastened to the fastening base; a first optical element, driven by the electric motor assembly, the first optical element is selected from at least one of the following types of optical elements: slides, condensing lenses or corrugated pieces; and light emitted by the light source assembly passes through the first optical element; and a second optical element, located above the first optical element, wherein the first optical element is located in a range of 1F-2F of the second optical element; and the second optical element is selected from at least one of the following types of optical elements: multi-section lenses, convex lenses or irregular elongated lenses.