Patent ID: 9535236
Date: 2017-01-03
CPC Classifications: G02B,H04N

Claim:
1. An 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 arranged in order from an object side to an image side along an optical axis of said imaging lens, each of said first lens element, said second lens element, said third lens element, said fourth lens element, said fifth lens element and said sixth lens element having an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein: said object-side surface of said second lens element has a convex portion in a vicinity of the optical axis and a concave portion in a vicinity of a periphery of said second lens element; said image-side surface of said third lens element has a convex portion in a vicinity of the optical axis and a concave portion in a vicinity of a periphery of said third lens element; said object-side surface of said fourth lens element has a concave portion in a vicinity of the optical axis; said object-side surface of said fifth lens element has a convex portion in a vicinity of the optical axis; said sixth lens element has an aspherical coefficient; said imaging lens does not include any lens element with a refractive power other than said first lens element, said second lens element, said third lens element, said fourth lens element, said fifth lens element and said sixth lens element; and said imaging lens satisfies ALT/G