Patent ID: 8325430

Claim:
A five-piece imaging lens module, comprising a fixed aperture diaphragm, a first lens, a second lens, a third lens, a fourth lens and a fifth lens arranged from an object side to an image side in a sequence of: the first lens, having a meniscus shape, a positive refractive power, a concave surface on the image side, and having at least one aspheric surface; the fixed aperture diaphragm; the second lens, having a meniscus shape, a negative refractive power, a concave surface on the image side, and having at least one aspheric surface; the third lens, having a meniscus shape, a positive refractive power, a convex surface on the image side, and having at least one aspheric surface; the fourth lens, having a negative refractive power, a concave surface on the object side, and having at least one aspheric surface; the fifth lens, having a convex surface on the object side near to the optical axis, and having at least one aspheric surface.