OPTICAL IMAGING LENS AND ELECTRONIC DEVICE INCLUDING THE LENS

摘要

An imaging optical lens includes, in order from object side to image side, an aperture stop, first, second, third, fourth, and fifth lens elements, each of the five lens elements having an object side surface and an image side surface. The object side surface of the first lens element is convex along an optical axis. The image-side surface of the second lens element concave in the vicinity of an outer circumference. The object side of the fourth lens element is convex in the vicinity of the outer circumference. The image side surface of the fifth lens element is concave in the vicinity of the optical axis and convex in the vicinity of the outer circumference. The first, second, third, fourth, and fifth lens elements have a refractive power. The thicknesses of the first, second, third, fourth, and fifth lens elements and the air gaps between them satisfy specific conditions.

主权项

1. An optical imaging lens having only five lens elements, the optical imaging lens comprising, in order from an object side to an image side, an aperture stop, first, second, third, fourth, and fifth lens elements, each of the five lens elements having an object side surface and an image side surface, wherein:
the object side surface of the first lens element is convex in the vicinity of an optical axis; the image side surface of the second lens element is concave in the vicinity of an outer circumference; the object side surface of the fourth lens element is convex in the vicinity of the outer circumference; the image side surface of the fifth lens element is concave in the vicinity of the optical axis and convex in the vicinity of the outer circumference; and the first, second, third, fourth, and fifth lens elements have a refractive power; wherein the optical imaging lens does not include any lens element with refractive power other than said first, second, third, fourth and fifth lens elements.