Imaging lens

The utility model provides an imaging lens, including the lens cone lens group interior with locating this lens cone be equipped with the external screw thread on the lateral wall of lens cone the topof lens cone is equipped with logical unthreaded hole the outward flange at lens cone top is equipped with the turn -up of downwarping the turn -up downside evenly is equipped with a plurality of supporting parts, and the lower extreme of this supporting part is fixed in on the lens cone lateral wall, the section ab intra of this supporting part and be isosceles triangle outward, including this isosceles triangle's the base, the both sides face of this supporting part is the echelonment be equipped with a plurality of recesses on the terminal surface of lens cone top, the recess be the annular evenly arrange in it is peripheral to lead to the unthreaded hole. The utility model provides a reasonable characteristics of lens cone utensil tangible column structure at the refrigerated in -process, can not lead to its