An optical imaging lens includes a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refracting power, an optical-axis region of the object-side surface of the second lens element is convex, a periphery region of the object-side surface of the second lens element is convex, and an optical-axis region of the image-side surface of the second lens element is convex. The Abbe number of the first lens element is ν1, the Abbe number of the second lens element is ν2 and the Abbe number of the third lens element is ν3 to satisfy 61.119≤ν1+ν2+ν3≤96.733.

An optical imaging lens includes a first lens element, a second lens element, a third lens element and a fourth lens element. The optical-axis region of the image-side surface of the first lens element is concave, the periphery region of the image-side surface of the second lens element is convex, a third lens has positive refracting power and the optical-axis region of the object-side surface of the fourth lens element is convex. The Abbe number of the first lens element is 1, the Abbe number of the second lens element is 2, the Abbe number of the third lens element is 3 and the Abbe number of the fourth lens element is 4 to satisfy 230.000 and 1+3+4120.000.