LENS MODULE
The present disclosure relates to the field of optical lenses, and discloses 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 lens barrel includes an outer wall surface around an optical axis of the lens module and facing away from the optical axis, and the outer wall surface is provided with at least one first groove. The fixing part includes an outer annular surface facing away from the optical axis, and the outer annular surface is provided with at least one second groove. The lens module can be assembled in an easier way.
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 lens barrel comprises an outer wall surface around an optical axis of the lens module and facing away from the optical axis, and the outer wall surface is provided with a first groove,
the fixing part comprises an outer annular surface facing away from the optical axis, and the outer annular surface is provided with a second groove.
2 . The lens module as described in claim 1 , wherein the lens barrel further comprises an end surface close to an image side and connected to the outer wall surface, and the first groove is connected to the end surface.
3 . The lens module as described in claim 2 , wherein the lens barrel further comprises an inner wall surface around the optical axis and facing toward the optical axis, the inner wall surface defines a first receiving space, and the first groove is connected to the inner wall surface and communicates with the first receiving space.
4 . The lens module as described in claim 1 , wherein at least two first grooves are provided, and the at least two first grooves are equally spaced around the optical axis.
5 . The lens module as described in claim 2 , wherein at least two first grooves are provided, and the at least two first grooves are equally spaced around the optical axis.
6 . The lens module as described in claim 3 , wherein at least two first grooves are provided, and the at least two first grooves are equally spaced around the optical axis.
7 . The lens module as described in claim 1 , wherein the fixing part further comprises an object side surface close to the object side and connected to the outer annular surface, and the second groove is connected to the object side surface.
8 . The lens module as described in claim 5 , wherein the fixing part further comprises an image side surface close to an image side and connected to the outer annular surface, and the second groove is connected to the image side surface.
9 . The lens module as described in claim 5 , wherein the fixing part further comprises an inner annular surface around the optical axis and facing toward the optical axis, and the inner annular surface defines a second receiving space, and the second groove is connected to the inner annular surface and communicates with the second receiving space.
10 . The lens module as described in claim 5 , wherein at least two second grooves are provided, and the at least two second grooves are equally spaced around the optical axis.
11 . The lens module as described in claim 6 , wherein at least two second grooves are provided, and the at least two second grooves are equally spaced around the optical axis.
12 . The lens module as described in claim 7 , wherein at least two second grooves are provided, and the at least two second grooves are equally spaced around the optical axis.
13 . The lens module as described in claim 1 , wherein the lens barrel is fixedly connected to the fixing part by means of threads.
14 . The lens module as described in claim 9 , wherein the lens barrel is fixedly connected to the fixing part by means of a thermosetting adhesive.