Patent ID: 9638899
Date: 2017-05-02
CPC Classifications: G02B,H04N

Claim:
1. An optical imaging lens set consisting of: a first lens element having an image-side surface facing toward an image side and an object-side surface facing toward an object side; a second lens element having an image-side surface facing toward the image side and an object-side surface facing toward the object side; a third lens element having an image-side surface facing toward the image side and an object-side surface facing toward the object side; a fourth lens element having an image-side surface facing toward the image side and an object-side surface facing toward the object side; and a fifth lens element having an image-side surface facing toward the image side and an object-side surface facing toward the object side, wherein the first, second, third, fourth, and fifth lens elements are disposed from the object side toward the image side in order along an optical axis and each lens element has a refractive power, wherein: the image-side surface of the first lens element has a concave portion in a vicinity of the optical axis and a concave portion in a vicinity of a circular periphery; the image-side surface of the second lens element has a convex portion in a vicinity of the optical axis; the image-side surface of the fourth lens element has a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of its circular periphery; and the image-side surface of the fifth lens element has a concave portion in a vicinity of the optical axis; wherein a total thickness of the first, second, third, fourth, and fifth lens elements along the optical axis is equal to T