Imaging lens

An imaging lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens, an eighth lens and a ninth lens. The first lens has negative refractivepower and includes a concave surface facing the image side. The second lens has negative refractive power. The third lens has positive refractive power. The fourth lens has positive refractive power.The fifth lens has positive refractive power. The sixth lens has negative refractive power. The seventh lens has refractive power. The eighth lens has refractive power. The ninth lens is a meniscus lens and comprises a convex surface facing the object side and a concave surface facing the image side. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens,the seventh lens, the eighth lens and the ninth lens are sequentially arranged from the object side to the image side. 一种成像镜头包括第一透镜、第二透镜、第三透镜、第四透镜、第五透镜、第六透镜、第七透镜、第八透镜及第九透镜。第一透镜具有负屈光力且包括一凹面朝向像侧。第二透镜具有负屈光力。第三透镜具有正屈光力。第四透镜具有正屈光力。第