Bilateral telecentric lens

The utility model relates to the technical field of optical devices, in particular to a double-side telecentric lens which comprises a bottom plate, a receiving plate and a mounting column, a lens body is fixedly mounted on the mounting column, a receiving groove is formed in the receiving plate, the mounting column is movably mounted in the receiving groove, and a pressing driving mechanism is slidably arranged on the portion, located outside the receiving groove, of the mounting column. The pressing driving mechanism extends into the first sliding cavity, a trapezoidal clamping block is slidably arranged on the part, located in the receiving groove, of the mounting column, a clamping groove corresponding to the trapezoidal clamping block in position is formed in the inner wall of the receiving groove, and the pressing driving mechanism is connected with the trapezoidal clamping block; an annular groove is formed in the inner side wall of the receiving groove, and a sealing ring is arranged on the inner side