Patent ID: 8576498

Claim:
An optical imaging lens assembly, sequentially arranged from an object side to an image side, comprising: a first lens element with positive refractive power, having a convex object-side surface; a second lens element with negative refractive power, having a convex object-side surface and a concave image-side surface; a third lens element with positive refractive power, having a convex image-side surface; a fourth lens element with refractive power, having both object-side surface and image-side surface being aspheric; a fifth lens element with refractive power, having a concave image-side surface, and both object-side surface and image-side surface being aspheric; wherein f is a focal length of the optical imaging lens assembly, f 3 is a focal length of the third lens element, T 23 is an axial distance between the second lens element and the third lens element, T 34 is an axial distance between the third lens element and the fourth lens element, R 6 is a curvature radius of the image-side surface of the third lens element, R 9 is a curvature radius of the object-side surface of the fifth lens element, CT 3 is a central thickness of the third lens element, v 3 is an Abbe number of the third lens element, v 4 is an Abbe number of the fourth lens element, and the following relations are satisfied: 0.7< f/f 3 <2.5; 0.1< T 23 /T 34 <2.0; −0.8< f/R 9 <5.0; −4.5< R 6 /CT 3 <−0.5; 25< v 3 −v 4 <45.