Patent ID: 9354425
Filing Date: 2016-05-31
CPC Classification: G02B

Claim Text:
1. A wide-angle image capturing lens assembly comprising, in order from an object side to an image side: a first lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof; a second lens element with refractive power having an image-side surface being convex in a paraxial region thereof; a third lens element having positive refractive power; and a fourth lens element with refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, wherein both of the object-side surface and the image-side surface of the fourth lens element are aspheric, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point in an off-axis region thereof; wherein the wide-angle image capturing lens assembly has a total of four lens elements with refractive power, a focal length of the wide-angle image capturing lens assembly is f, a focal length of the second lens element is f2, a focal length of the third lens element is f3, a focal length of the fourth lens element is f4, a curvature radius of an image-side surface of the third lens element is R6, a curvature radius of the object-side surface of the fourth lens element is R7, and the following relationships are satisfied: