Patent ID: 9341819
Filing Date: 2016-05-17
CPC Classification: G02B

Claim Text:
1. An optical imaging lens, comprising: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element; wherein each of the lens elements are arranged sequentially from an object side to an image side along an optical axis; wherein each of the lens elements comprises an object-side surface facing toward the object side and an image-side surface facing toward the image side; wherein each of the object-side surfaces and the image-side surfaces has a vicinity of the optical axis and a vicinity of a periphery of each lens element; wherein the first lens element comprises a positive refractive power; wherein the object-side surface of the second lens element comprises a convex portion in the vicinity of the optical axis, and the second lens element comprises a positive refractive power; wherein the object-side surface of the third lens element comprises a concave portion in the vicinity of the optical axis, the image-side surface of the third lens element comprises a concave portion in the vicinity of the optical axis, and the third lens element comprises a negative refractive power; wherein the image-side surface of the fourth lens element comprises a convex portion in the vicinity of the optical axis, and the fourth lens element comprises a positive refractive power; and wherein the image-side surface of the sixth lens element comprises a concave portion in the vicinity of the optical axis and a convex portion in the vicinity of the periphery of said sixth lens element; the optical imaging lens as a whole comprises only the six lens elements each comprising refractive power.