Optical imaging lens

An optical imaging lens, comprising a front lens group, a reflective element and a rear lens group arranged in sequence from an object side to an image side along an optical axis, the optical axis comprising a first optical axis and a second optical axis different from the first optical axis, and the first optical axis intersecting the second optical axis to form an intersection point located at the reflective element, wherein the front lens group comprises a first lens element and a second lens element arranged along the first optical axis, the rear lens group comprises a third lens element and a fourth lens element arranged along the second optical axis, and each of the first lens element to the fourth lens element comprises an object-side surface facing the object side and allowing imaging rays to pass through and an image-side surface facing the image side and allowing the imaging rays to pass through, wherein the first lens element is arranged to be a lens element having refracting power in a first order from the object side to the image side, the second lens element is arranged to be a lens element having refracting power in a second order from the object side to the image side, the third lens element is arranged to be a lens element having refracting power in a second order from the image side to the object side, and the fourth lens element is arranged to be a lens element having refracting power in a first order from the image side to the object side;

• wherein the optical imaging lens satisfies:
• D1M≦3.6 mm;
• and
• G23/T4≦10.5,
• wherein D1M is a distance from the object-side surface of the first lens element to the intersection point along the first optical axis, G2M is an air gap between the second lens element and the intersection point along the first optical axis, GM3 is an air gap between the intersection point and the third lens element along the second optical axis, G23 is an air gap from the second lens element to the third lens element along the optical axis, G23 is a sum of G2M and GM3, and T4 is a thickness of the fourth lens element along the second optical axis.