Patent ID: 9316811
Filing Date: 2016-04-19
CPC Classification: G02B

Claim Text:
1. A photographing lens assembly comprising, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof; a second lens element; a third lens element; a fourth lens element; a fifth lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; and a sixth lens element having an object-side surface being convex in a paraxial region thereof and a 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 the object-side surface and the image-side surface of the sixth lens element are aspheric; wherein the photographing lens assembly has a total of six non-cemented lens elements, a focal length of the photographing lens assembly is f, a focal length of the first lens element is f1, a curvature radius of the object-side surface of the second lens element is R3, a curvature radius of an image-side surface of the second lens element is R4, and the following conditions are satisfied: