Patent ID: 8194172

Claim:
An optical 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; a second lens element with negative refractive power having a concave object-side surface; and a third lens element with negative refractive power having a concave image-side surface, at least one of the object-side and image-side surfaces thereof being aspheric; wherein the optical imaging lens assembly further comprises an aperture stop disposed between the first lens element and the second lens element and an electronic sensor for the image formation of an object; and wherein a focal length of the optical imaging lens assembly is f, a focal length of the second lens element is f 2 , a thickness of the first lens element on an optical axis is CT 1 , a thickness of the second lens element on the optical axis is CT 2 , a distance on the optical axis between the aperture stop and the electronic sensor is SL, a distance on the optical axis between the object-side surface of the first lens element and the electronic sensor is TTL, and they satisfy the relations: −0.22<f/f 2 <0.0, 0.30<CT 2 /CT 1 <0.95, 0.65<SL/TTL<0.90.