Projector ray machine and projector

The utility model relates to a projector light machine and a projector. The projector light machine comprises a light source mounting structure, an optical assembly accommodating cavity and a light ray accommodating cavity. The light source mounting structure includes a top surface and a bottom surface. The optical component accommodating cavity comprises a top surface, a bottom surface and a side surface connecting the top surface and the bottom surface. The light containing cavity comprises a top face, a bottom face and a side surface connected with the top face and the bottom face. The top surface of the optical component accommodating cavity is opposite to the bottom surface of the light source mounting structure, the bottom surface of the optical component accommodating cavity is opposite to the top surface of the light ray accommodating cavity, and the bottom surface of the light ray accommodating cavity comprises a reflecting surface. And at least one of the side surface of the optical component accommodating cavity, the side surface of the light accommodating cavity and the reflecting surface is provided with a radiating fin. By arranging the radiating fins, the temperature of the cavity can be quickly and effectively reduced, so that the output power of the light source can be effectively ensured, and a basis is provided for higher brightness design.