Adjustable optical lens base

The invention belongs to the technical field of optical systems, and discloses an adjustable optical lens base which comprises a support, a main lens base, a universal hinge piece, an elastic supporting rod and two adjusting screw rods. A reflecting mirror is arranged on the front surface of the primary mirror base, and the back surface is hinged with the support through a universal hinge piece; the two adjusting screw rods and the elastic supporting rod are arranged on the support in a triangular arrangement mode, and the universal hinge piece is arranged in the triangle; the tail end of the adjusting screw rod is connected with the back surface of the primary mirror base and is used for adjusting the angle of the primary mirror base; the tail end of the elastic supporting rod abuts against the back face of the primary mirror base and is used for providing elastic supporting reaction force for the primary mirror base. The universal hinge piece comprises a ball socket piece, a ball head piece and a locking pi