Patent ID: 9239447
Filing Date: 2016-01-19
CPC Classification: G02B

Claim Text:
1. An optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power in a paraxial region thereof having an object-side surface being convex in a paraxial region thereof; a second lens element having refractive power in a paraxial region thereof; a third lens element having negative refractive power in a paraxial region thereof; a fourth lens element having negative refractive power in a paraxial region thereof; a fifth lens element having refractive power in a paraxial region thereof, wherein both of an object-side surface and an image-side surface of the fifth lens element are aspheric; and a sixth lens element with positive refractive power in a paraxial region thereof having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one convex shape in an off-axis region thereof, and both of the object-side surface and the image-side surface of the sixth lens element are aspheric; wherein the optical imaging lens assembly has a total of six lens elements with refractive power, a focal length of the optical imaging lens assembly in the paraxial region thereof is f, a focal length of the third lens element in the paraxial region thereof is f3, a focal length of the fourth lens element in the paraxial region thereof is f4, a focal length of the sixth lens element in the paraxial region thereof is f6, a vertical distance between a non-axial critical point on the image-side surface of the sixth lens element and an optical axis is Yc62, an axial distance between the first lens element and the second lens element is T12, an axial distance between the second lens element and the third lens element is T23, an axial distance between the third lens element and the fourth lens element is T34, an axial distance between the fourth lens element and the fifth lens element is T45, an axial distance between the fifth lens element and the sixth lens element is T56, and the following conditions are satisfied: