Optical imaging lens

An optical imaging lens (1-4) includes an aperture (ST) and a first to a fifth lenses (L1-L5) in order from an object side to an image side. The first lens (L1) is made of glass, and is a positive meniscus lens, of which the convex surface (S2) faces the object side. The second lens (L2) is a negative meniscus lens, of which the convex surface (S4) faces the object side. The third lens (L3) is a positive meniscus lens, of which the convex surface (S7) faces the image side. The fourth lens (L4) is made of glass, which is a positive meniscus lens with a refractive index no less than 1.7, wherein the convex surface (S9) thereof faces the image side. A diopter of the fifth lens (L5) turns from negative to positive from a center to a margin thereon.