Patent ID: 8908290
Filing Date: 2014-12-09
Classification: G02B

Abstract:
1. An optical imaging lens system comprising, in order from an object side to an image side: a first lens element having refractive power; a second lens element having positive refractive power; a third lens element having positive refractive power; a fourth lens element having refractive power; a fifth lens element with positive refractive power having a convex object-side surface and a convex 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 refractive power having a concave image-side surface, wherein an object-side surface and the image-side surface of the sixth lens element are aspheric, and at least one of the object-side surface and the image-side surface of the sixth lens element has at least one inflection point; wherein the optical imaging lens system has a total of six lens elements with refractive power, a curvature radius of the object-side surface of the fifth lens element is R9, a curvature radius of the image-side surface of the fifth lens element is R10, a focal length of the optical imaging lens system is f, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, and the following conditions are satisfied: