Patent ID: 8922911

Claim:
An image pickup lens for focusing an image of a subject on a photoelectric converting portion of a solid-state image pickup device, the image pickup lens comprising an aperture stop and only a single lens element, wherein the single lens element of the image pickup lens is arranged between the aperture stop and the solid-state image pickup device, and wherein the image pickup lens satisfies the following conditional formulae: 0.70 mm< f <1.60 mm (1) 0.70<( r 1 −r 2)/( r 1 −r 2)<1.60 (2) where f: focal length of the image pickup lens (mm); r1: paraxial radius of curvature of an object-side surface of the single lens element (mm); and r2: paraxial radius of curvature of an image-side surface of the single lens element (mm).