Patent ID: 9488808
Filing Date: 2016-11-08
CPC Classification: G02B

Claim Text:
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; a second lens element with negative refractive power; a third lens element having an object-side surface and an image-side surface which are both aspheric; a fourth lens element with negative refractive power having an object-side surface and an image-side surface which are both aspheric; a fifth lens element having an object-side surface and an image-side surface which are both aspheric; and a sixth lens element having a concave object-side surface and a convex image-side surface which are both aspheric; wherein the image capturing lens system has a total of six lens elements and an axial air gap is arranged between every two adjacent lens elements among the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element and the sixth lens element; wherein an axial distance between the fifth lens element and the sixth lens element is T56, a sum of axial air gaps between every two adjacent lens elements is ΣAT, a focal length of the fourth lens element is f4, a focal length of the third lens element is f3, a focal length of the image capturing lens system is f, a curvature radius of the object-side surface of the first lens element is R1, an axial distance between the image-side surface of the sixth lens element and an image surface is BL, an axial distance between the object-side surface of the first lens element and the image-side surface of the sixth lens element is TD, a central thickness of the fourth lens element is CT4, a central thickness of the fifth lens element is CT5, and the following conditions are satisfied: