Patent ID: 9696528
Date: 2017-07-04
CPC Classifications: G02B,H04N

Claim:
1. An optical imaging lens comprising, from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element, each of the first, second, third, fourth, and fifth lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein: the object-side surface of the third lens element comprises a concave portion in a vicinity of its periphery; the fourth lens element comprises a concave object-side surface; the object-side surface of the fifth lens element comprises a convex portion in a vicinity of the optical axis; the optical imaging lens as a whole has only the five lens elements having refracting power; and the optical imaging lens satisfies the following relation: wherein f is an effective focal length of the optical imaging lens, AG12 is an air gap between the first and second lens elements along the optical axis, and AG45 is an air gap between the fourth and fifth lens elements along the optical axis.