Optical imaging lens

The utility model provides an optical imaging lens. The optical imaging lens comprises a lens barrel; a plurality of lenses which are arranged in the lens cone at intervals; a base layer disposed on one side surface of the at least one lens; the transition layer is connected with the surface of the side, away from the substrate layer, of the substrate layer; the magnesium fluoride film layer is connected with the surface of one side, far away from the substrate layer, of the transition layer; the second film layer is connected with the surface of the side, away from the transition layer, of the magnesium fluoride film layer, and the maximum reflectivity of the optical imaging lens to light with the wavelength ranging from 420 nm to 750 nm is smaller than 0.3%. According to the utility model, the problem that the magnesium fluoride film layer is not firmly bonded in the prior art is solved. 本实用新型提供了一种光学成像镜头。光学成像镜头，包括：镜筒；透镜，透镜为多个，多个透镜间隔设置在镜筒内；基底层，基底层设置在至少一个透镜的一侧表面上；过渡层，过渡层与基底层远离基底层的一侧表面连接；氟化镁膜层，氟化镁膜层与过渡层远离基底层的一