A lens module, comprising:
- a lens barrel;
- and a lens group received in the lens barrel, wherein the lens barrel comprises a first barrel wall extending in a horizontal direction and a second barrel wall extending from the first barrel wall while being bent, the first barrel wall comprising a first surface close to an object side and a second surface close to an image side, the lens group comprises a first lens and a second lens that match each other from the object side to the image side, the first lens being a glass lens, the second lens being a plastic lens, and the first lens and the second lens each comprising an optical portion and a peripheral portion surrounding the optical portion, wherein the second surface of the first barrel wall comprises:
- a first planar surface horizontally extending from a joint between the first barrel wall and the second barrel wall towards an optical axis;
- a first oblique surface obliquely extending from the first planar surface towards the optical axis and towards the object side;
- and a second planar surface horizontally extending from the first oblique surface towards the optical axis, wherein an object side surface of the peripheral portion of the first lens comprises:
- a third planar surface horizontally extending from an outer edge of the first lens towards the optical axis;
- a second oblique surface obliquely extending from the third planar surface towards the optical axis and towards the object side;
- and a fourth planar surface horizontally extending from the second oblique surface towards the optical axis, the first oblique surface being attached to the second oblique surface, and the second planar surface being attached to the fourth planar surface, wherein an image side surface of the peripheral portion of the first lens comprises:
- a fifth planar surface horizontally extending from the outer edge of the first lens towards the optical axis;
- a third oblique surface obliquely extending from the fifth planar surface towards the optical axis and towards the object side;
- and a sixth planar surface horizontally extending from the third oblique surface towards the optical axis, wherein an object side surface of the second lens comprises:
- a seventh planar surface attached to the fifth planar surface;
- a fourth oblique surface obliquely extending from the seventh planar surface towards the optical axis and towards the object side;
- and an eighth planar surface horizontally extending from the fourth oblique surface towards the optical axis, the fourth oblique surface being spaced apart from the third oblique surface.