Short-wave infrared manually-adjusted lens

The utility model belongs to the technical field of optical lenses, in particular to a short wave infrared manual adjustment lens, which comprises a fixed group, a focusing lens group and a lens diaphragm, the fixed group comprises a front fixed group, a fourth lens group and a rear fixed group, the fourth lens group and the rear fixed group are both mounted beside the front fixed group, and the focusing lens group is mounted beside the rear fixed group. The focusing lens group and the lens diaphragm are both mounted in the fixed group; the function of the short-wave infrared lens is realized through the six lenses in the short-wave infrared manual adjustment lens, so that the production difficulty is reduced, the manufacturing cost is reduced, the structural design is simple and compact, the design is reasonable, the installation is facilitated, and the short-wave infrared manual adjustment lens has the advantages of high optical performance, large aperture, small volume, high precision, impact resistance an