Patent ID: 7839580

Claim:
A compact imaging lens assembly comprising, in order from an object side to an image side: a first lens element with negative refractive power having a convex object-side surface and a concave image-side surface; a second lens element with positive refractive power, at least one of the object-side and image-side surfaces thereof being aspheric; and an aperture stop disposed between the second lens element and an image plane; wherein there are two lens elements with refractive power in the compact imaging lens assembly; and wherein a focal length of the compact imaging lens assembly is f, a focal length of the second lens element is f2, a radius of curvature of the object-side surface of the second lens element is R3, a radius of curvature of the image-side surface of the second lens element is R4, and they satisfy the relations: 0.40<f/f2<1.20, |R3/R4|>1.5.