Patent ID: 8891183

Claim:
An image 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 refractive power; a third lens element with positive refractive power; a fourth lens element with negative refractive power; a fifth lens element with positive refractive power made of plastic material, and having a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fifth lens element are aspheric; and a sixth lens element with positive refractive power made of plastic material, and having a convex object-side surface and a concave image-side surface, wherein the image-side surface of the sixth lens element changes from concave at a paraxial region to convex at a peripheral region, and the object-side surface and the image-side surface of the sixth lens element are aspheric; wherein a focal length of the image lens assembly is f, a focal length of the fifth lens element is f 5 , a focal length of the sixth lens element is f 6 , and the following relationships are satisfied: 0 <f/f 6<0.9; and 0.4<( f/f )( f/f 6)<1.9.