LENS MODULE
A lens module includes a lens barrel; and a lens arranged inside the lens barrel. The lens barrel includes: a first barrel wall extending from an object side towards an image side; a second barrel wall arranged at an image side of the first barrel wall and having an inner diameter greater than that of the first barrel wall; and a connection wall connecting the first and second barrel walls. The lens includes: an optical portion for imaging; and a peripheral portion surrounding the optical portion. The peripheral portion includes a first abutting portion close to the object side, and a second abutting portion close to the image side and connected to the first abutting portion. An outer diameter of the second abutting portion is greater than that of the first abutting portion. The first and second abutting portions are received within the first and second barrel walls, respectively.
1 . A lens module, comprising:
a lens barrel; and
a lens arranged inside the lens barrel,
wherein the lens barrel comprises:
a first barrel wall extending from an object side towards an image side;
a second barrel wall arranged at an image side of the first barrel wall and having an inner diameter greater than an inner diameter of the first barrel wall; and
a connection wall connecting the first barrel wall with the second barrel wall, and
wherein the lens comprises:
an optical portion for imaging; and
a peripheral portion surrounding the optical portion, the peripheral portion comprising a first abutting portion close to the object side, and a second abutting portion close to the image side and connected to the first abutting portion,
wherein an outer diameter of the second abutting portion is greater than an outer diameter of the first abutting portion, the first abutting portion is received within the first barrel wall, and the second abutting portion is received within the second barrel wall.
2 . The lens module as described in claim 1 , wherein the first abutting portion abuts against the first barrel wall, and the second abutting portion abuts against the connection wall.
3 . The lens module as described in claim 2 , wherein the second abutting portion is spaced apart from the second barrel wall.
4 . The lens module as described in claim 2 , wherein the connection wall comprises:
a first inner wall surface extending from an inner circumference of the first barrel wall close to the image side along a direction facing away from an optical axis and facing towards the image side; and
a second inner wall surface extending from the first inner wall surface to the second barrel wall along a direction perpendicular to and facing away from the optical axis,
wherein the second abutting portion abuts against the second inner wall surface.
5 . The lens module as described in claim 4 , wherein the peripheral portion further comprises an extension portion connecting the first abutting portion with the second abutting portion.
6 . The lens module as described in claim 5 , wherein the first inner wall surface is spaced apart from the extension portion.
7 . The lens module as described in claim 4 , wherein a light blocking member is arranged between the second abutting portion and the second inner wall surface.
8 . The lens module as described in claim 1 , wherein the first abutting portion comprises an image side surface close to the image side, and the image side surface is a planar surface.
9 . The lens module as described in claim 1 , wherein the first abutting portion comprises an object side surface close to the object side, and a first abutting surface abutting against the first barrel wall, and an arc transition is arranged between the object side surface and the first abutting surface.