Patent ID: 9581792
Date: 2017-02-28
CPC Classifications: G02B,H05K

Claim:
1. An imaging lens, comprising, in order from an object side to an image side of the imaging lens: a first lens having positive refractive power and a convex surface facing the object side; a second lens having negative refractive power, a convex surface facing the object side, and a concave surface facing the image side; a third lens that is a double-sided aspheric lens having positive refractive power and convex surfaces facing the object side and the image side; a fourth lens that is a double-sided aspheric lens having a concave surface facing the object side and a convex surface facing the image side; a fifth lens that is a double-sided aspheric lens having a convex surface facing the object side; a sixth lens that is a double-sided aspheric lens having a convex surface facing the object side and a concave surface facing the image side, an image-side surface of the sixth lens having an aspheric shape with a pole-change point separated from an optical axis of the imaging lens; and when f