Imaging lens

Abstract

There is provided an imaging lens with high-resolution which satisfies demand of the wide field of view, the low-profileness and the low F-number, and excellently corrects aberrations. An imaging lens comprises in order from an object side to an image side, a first lens having positive refractive power and a convex surface facing the object side near the optical axis, a second lens having negative refractive power near the optical axis, a third lens, a fourth lens, a fifth lens and a sixth lens having negative refractive power and a concave surface facing the image side near the optical axis, wherein the image-side surface of said sixth lens is formed as an aspheric surface having at least one off-axial pole point, the image-side surface of said first lens has the concave surface facing the image side near the optical axis, the image-side surface of said third lens has the concave surface facing the image side near the optical axis, said fifth lens has a biconvex shape having the convex surfaces facing the object side and the image side near the optical axis, the object-side surface of the sixth lens has the convex surface facing the object side near the optical axis, and predetermined conditional expressions are satisfied.