Patent ID: 8154807
Filing Date: 2012-04-10
Classification: G02B

Abstract:
1. An imaging lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface and a convex image-side surface; a second lens element with negative refractive power, at least one of the object-side and image-side surfaces thereof being aspheric; and a third lens element with negative refractive power having a concave image-side surface, both of the object-side and image-side surfaces thereof being aspheric; and wherein the imaging lens assembly further comprises an aperture stop disposed between the first lens element and the second lens element, and an electronic sensor for image formation; wherein there are three lens elements with refractive power; and wherein a focal length of the imaging lens assembly is f, a focal length of the second lens element is f