Patent ID: 9625680
Date: 2017-04-18
CPC Classifications: G02B

Claim:
1. An optical 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 having positive refractive power; a third lens element having negative refractive power; a fourth lens element having negative refractive power; and a fifth lens element with positive refractive power having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the fifth lens element comprises at least one convex shape in an off-axis region thereof, and an object-side surface and the image-side surface of the fifth lens element are aspheric; wherein the optical photographing lens assembly has a total of five lens elements, an axial distance is between every two lens elements of the first lens element, the second lens element, the third lens element, the fourth lens element and the fifth lens element which are adjacent to each other, a focal length of the first lens element is f1, a focal length of the second lens element is f2, and the following condition is satisfied: