LENS MODULE
The present disclosure relates to the optical lenses, and provides a lens module. The lens module includes a lens barrel, a first lens arranged at an object side of the lens barrel, and a fixing part for pressing the first lens against the lens barrel from an object side of the first lens. The fixing part includes a top wall for pressing the first lens, and a side wall extending from the top wall while being bent towards an image side and fixedly connected to the lens barrel. The top wall is in contact with the first lens, and a glue is filled between the side wall and the first lens, and bonds and fixes the first lens to the side wall. The lens module provided by the present disclosure has a higher reliability and sealing property.
1 . A lens module, comprising:
a lens barrel;
a first lens arranged at an object side of the lens barrel; and
a fixing part for pressing the first lens against the lens barrel from an object side of the first lens,
wherein the fixing part comprises:
a top wall for pressing the first lens; and
a side wall extending from the top wall while being bent towards an image side, the
side well being fixedly connected to the lens barrel,
wherein the top wall is in contact with the first lens, and a glue is filled between the side wall and the first lens, and bonds and fixes the first lens to the side wall.
2 . The lens module according to claim 1 , wherein the top wall comprises an object side surface, an image side surface opposite to the object side surface, and a connecting surface connecting the object side surface with the image side surface,
the connecting surface comprises an oblique surface connected to the image side surface and oblique with respect to an optical axis of the lens module, and the oblique surface is in contact with the first lens.
3 . The lens module according to claim 2 , wherein the first lens comprises an incident surface close to the object side,
the incident surface comprises a incident portion located at a central location, a matching portion surrounding the incident portion and attached to the oblique surface, and a supporting portion surrounding the matching portion and directly facing the image side surface,
the image side surface is spaced apart from the supporting portion, and the glue extends into a spacing between the image side surface and the supporting portion.
4 . The lens module according to claim 3 , wherein the first lens further comprises an emergent surface close to the image side, and the glue extends to the emergent surface and is spaced apart from the lens barrel.
5 . The lens module according to claim 1 , wherein the lens barrel comprises a first barrel wall close to the object side and abutting against the first lens, and a second barrel wall extending from the first barrel wall while being bent towards the image side, the first barrel wall being fixedly connected to the fixing part by means of threads.
6 . The lens module according to claim 5 , wherein the first barrel wall is fixedly connected to the fixing part by means of a thermosetting glue.
7 . The lens module according to claim 1 , wherein a seal ring is provided between the lens barrel and the first lens.
8 . The lens module according to claim 7 , wherein the lens barrel is provided with a groove, and the seal ring is received in the groove.
9 . The lens module according to claim 8 , wherein the groove has an annular shape around an optical axis of the lens module.