Imaging lens, image capturing unit and electronic device

An imaging lens comprising:

• a plurality of lens elements arranged along an optical axis, wherein the plurality of lens elements comprise a first lens element;
• a lens barrel comprising:
• a tube portion surrounding the optical axis, wherein the plurality of lens elements are disposed in the tube portion;
• and
• an opening portion extending along a direction from the tube portion towards the optical axis, wherein the opening portion has a barrel opening and a first step surface;
• a first opening element, wherein the first lens element abuts on a side of the first opening element away from the opening portion, the first opening element and the first step surface form a gap therebetween, and the first opening element has a first light-passable opening disposed corresponding to the barrel opening;
• and
• a second opening element disposed in the gap, wherein the second opening element has a second light-passable opening disposed opposite to the first light-passable opening.

An imaging lens comprising:

• a plurality of lens elements arranged along an optical axis, wherein the plurality of lens elements comprises a first lens element;
• a lens barrel comprising:
• a tube portion surrounding the optical axis, wherein the plurality of lens elements are disposed in the tube portion;
• and
• a barrel opening element fixed on the tube portion, wherein the barrel opening element has an opening portion extending along a direction towards the optical axis, and the opening portion has a barrel opening and a first step surface;
• a first opening element, wherein the first lens element abuts on a side of the first opening element away from the opening portion, the first opening element and the first step surface form a gap therebetween, and the first opening element has a first light-passable opening disposed corresponding to the barrel opening;
• and
• a second opening element disposed in the gap, wherein the second opening element has a second light-passable opening disposed opposite to the first light-passable opening.