Michelson interferometer base structure

The utility model belongs to the field of optics, and particularly relates to a Michelson interferometer base structure which comprises a guide rail supporting seat used for supporting a guide rail, a base used for fixing the guide rail supporting seat and a projection screen supporting rod seat fixed on the guide rail supporting seat. The guide rail is fixed at the top of the guide rail supporting seat through bolts, one end of the projection screen supporting rod seat is inserted into one end of the guide rail supporting seat and fixed through bolts, and the other end of the projection screen supporting rod seat is exposed out of the guide rail supporting seat and used for installing a projection screen. According to the utility model, the original integrally designed base structure is divided into three parts which are fixedly assembled, the three parts can be independently processed and manufactured, and the original irregular geometric body which cannot be processed by a lathe is changed into the three p