Patent ID: 8514504

Claim:
An image pickup lens, comprising: a first lens having a positive meniscus shape convex toward an object side; a second lens disposed on an image side of the first lens and has a meniscus shape convex toward the image side; and an aperture stop disposed on the object side of the image side surface of the first lens, wherein the image pickup lens is configured to satisfy conditional expressions given below: 0.45 <R 2/ R 3<0.66 (5-2) 0.05 <DD/f< 0.117 (9-2) where, f is a focal length of the entire lens system; R 2 is a paraxial radius of curvature of the object side surface of the first lens; R 3 is a paraxial radius of curvature of the image side surface of the first lens; and DD is a distance, on the optical axis, between the first and second lenses.