Lens module and electronic device

1. A lens module, comprising an optical lens assembly, wherein the optical lens assembly comprises a plastic lens element and an optical element, and in order from an optical axis of the plastic lens element to an edge thereof, the plastic lens element comprises:

an effective optical portion; and

a peripheral portion, comprising:

a plurality of strip-shaped rib structures, wherein each of the strip-shaped rib structures has a strip shape in a radial direction of the optical axis, and the strip-shaped rib structures are arranged around the effective optical portion and indirectly connected to the effective optical portion; and

an image-side abutting surface disposed on a surface of the peripheral portion facing an image surface, wherein the optical element is abutted with the image-side abutting surface.

2. The lens module of claim 1 , wherein the strip-shaped rib structures and the plastic lens element are formed integrally.

3. The lens module of claim 2 , wherein a width of each of the strip-shaped rib structures in a circumferential direction of the plastic lens element is (w), and the following condition is satisfied:

0.01 mm<w<0.05 mm.

4. The lens module of claim 2 , wherein a number of the strip-shaped rib structures is greater than or equal to 60, and smaller than or equal to 400.

5. The lens module of claim 2 , wherein at least one of two surfaces of the effective optical portion has a wavy shape.

6. The lens module of claim 2 , wherein each of the strip-shaped rib structures has an inclined surface having an angle with the optical axis of the plastic lens element.

7. An electronic device, comprising:

the lens module of claim 1 .