Patent ID: 8670189

Claim:
An optical image capturing 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 convex image-side surface; a third lens element with positive refractive power which is made of plastic material and has a convex object-side surface and a convex image-side surface, wherein the object-side surface and the image-side surface of the third lens element are aspheric; and a fourth lens element with negative refractive power which is made of plastic material and has a convex object-side surface and a concave image-side surface, wherein the object-side surface and the image-side surface of the fourth lens element are aspheric, and the fourth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof; wherein a focal length of the optical image capturing assembly is f, a focal length of the fourth lens element is f4, a curvature radius of the image-side surface of the second lens element is R4, and the following relationships are satisfied: −2.5 <f/f 4<−0.6; and −5.0 <R 4 /f<− 0.2.