Patent ID: 8675289
Filing Date: 2014-03-18
Classification: G02B

Abstract:
1. An image capturing optical lens system 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; a third lens element with positive refractive power having a convex image-side surface, wherein an object-side surface and the image-side surface of the third lens element are aspheric; a fourth lens element with refractive power having a concave object-side surface and a convex image-side surface, wherein the object-side surface and the image-side surface of the fourth lens element are aspheric; and a fifth lens element with refractive power made of plastic material, and having a concave mage-side surface, wherein an object-side surface and the image-side surface of the fifth lens element are aspheric, and the fifth 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 the first through fifth lens elements are five independent and non-cemented lens elements, a focal length of the image capturing optical lens system is f, a focal length of the first lens element is f1, a focal length of the third lens element is f3, an axial distance between the fourth lens element and the fifth lens element is T45, a central thickness of the fourth lens element is CT4, a central thickness of the fifth lens element is CT5, and the following relationships are satisfied: