Camera device and optical imaging lens thereof

摘要

The present invention provides a camera device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side and an aperture stop positioned between the third lens element and fourth lens element. Through controlling the convex or concave shape of the surfaces of the lens elements, the view angle of the optical imaging lens is efficiently increased to provide better optical characteristics.

主权项

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.