Patent ID: 9350908
Filing Date: 2016-05-24
CPC Classification: G02B

Claim Text:
1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising an aperture stop, a first lens element, a second lens element, a third lens element, a fourth lens element, and a fifth lens element, each of said first, second, third, fourth, and fifth lens elements having refractive power, an object-side surface facing toward the object side and an image-side surface facing toward the image side axis, wherein: said image-side surface of said first lens element comprises a concave portion in a vicinity of the optical axis; said image-side surface of said second lens element comprises a concave portion in a vicinity of the optical axis; said object-side surface of said third lens element comprises a convex portion in a vicinity of the optical axis and a concave portion in a vicinity of a periphery of the third lens element; said image-side surface of said third lens element comprises a concave portion in a vicinity of the optical axis; said object-side surface of said fourth lens element comprises a concave portion in a vicinity of the optical axis; said object-side surface of said fifth lens element comprises a concave portion in a vicinity of the optical axis; and wherein said optical imaging lens comprises no other lenses having refractive power beyond the five lens elements, wherein a sum of the thickness of all five lens elements along the optical axis is ALT, an air gap between the fourth lens element and the fifth lens element along the optical axis is G 45 , and ALT and G 45 satisfy the equation: