Patent ID: 9223117
Filing Date: 2015-12-29
Classification: G02B,H04N

Abstract:
1. An optical imaging lens, sequentially from an object side to an image side along an optical axis, comprising an aperture stop, first, second, third, fourth and fifth lens elements, each of said first, second, third, fourth and fifth lens elements having 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 positive refracting power, and said image-side surface thereof comprises a convex portion in a vicinity of a periphery of the first lens element; said second lens element has negative refracting power, and said object-side surface of said second lens element comprises a concave portion in a vicinity of a periphery of the second lens element; said third lens element has positive refracting power, and said object-side surface of said third lens element comprises a concave portion in a vicinity of the optical axis, and said image-side surface of said third lens element is a convex surface; said fourth lens element has negative refracting power, and said object-side surface of said fourth lens element comprises a concave portion in a vicinity of a periphery of the fourth lens element; said fifth lens element has negative refracting power and is constructed by plastic material, said object-side surface of said fifth lens element comprises a convex portion in a vicinity of the optical axis; the optical imaging lens as a whole comprises only the five lens elements having refracting power; and an air gap between the first lens element and the second lens element along the optical axis is AC12, the sum of all four air gaps from the first lens element to the fifth lens element along the optical axis is AAG, and AC12 and AAG satisfy the equation: