Patent ID: 9274307
Filing Date: 2016-03-01
CPC Classification: G02B

Claim Text:
1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising: a first lens element, a second lens element, a third lens element, an aperture stop, a fourth lens element and a fifth lens element, each of said first, second, third, fourth and fifth lens elements having refracting power, an object-side surface facing toward the object side and an image-side surface facing toward the image side, wherein: said first lens element has negative refracting power, and said image-side surface thereof comprises a concave portion in a vicinity of the optical axis; said object-side surface of said second lens element comprises a convex portion in a vicinity of a periphery of the second lens element; said image-side surface of said third lens element comprises a convex portion in a vicinity of a periphery of the third lens element; said fourth lens element has negative refracting power; said object-side surface of said fifth lens element which is constructed by plastic material comprises a convex portion in a vicinity of the optical axis; and said optical imaging lens comprises only the five lens elements having refracting power.