Patent ID: 8736986

Claim:
A photographing lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface and an image-side surface, wherein the object-side surface and the image-side surface of the first lens element are convex at a paraxial region thereof; and a second lens element with negative refractive power made of plastic material, and having an object-side surface and an image-side surface, wherein the object-side surface of the second lens element is convex at a paraxial region thereof, the image-side surface of the second lens element is concave at the paraxial region and convex at a peripheral region thereof, and the object-side surface and the image-side surface of the second lens element are aspheric; wherein a central thickness of the first lens element is CT1, a central thickness of the second lens element is CT2, an Abbe number of the first lens element is V1, an Abbe number of the second lens element is V2, and the following relationships are satisfied: 0.60 <CT 2/ CT 1<4.0; and 2.0<( V 1 2 −V 2 2 )/( V 1 −V 2) 2 <5.0.