Patent ID: 8934180
Filing Date: 2015-01-13
Classification: G02B

Abstract:
1. An image capturing 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 at a paraxial region; a second lens element with positive refractive power having a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region; a third lens element with negative refractive power having a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region; a fourth lens element with positive refractive power having a convex image-side surface at a paraxial region; and a fifth lens element with refractive power having a concave image-side surface at a paraxial region, wherein both of an object-side surface and the image-side surface of the fifth lens element are aspheric, and the image-side surface of the fifth lens element has at least one convex shape at an off-axis region; wherein the image capturing lens system has a total of five lens elements with refractive power, a focal length of the image capturing lens system is f, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, a curvature radius of an object-side surface of the fourth lens element is R7, a curvature radius of the image-side surface of the fourth lens element is R8, a central thickness of the third lens element is CT3, a central thickness of the fourth lens element is CT4, and the following relationships are satisfied: