OPTICAL LENS AND LENS MODULE
The present disclosure relates to the field of optical imaging technology and more particularly to an optical lens. The optical lens includes an optical portion located at a central position and configured for optical imaging, and an abutting portion surrounding the optical portion and configured to abut against other optical components. A surface of the abutting portion is provided with a roughened area and a blackened area. The optical lens can effectively weaken the reflected stray light incident thereon and improve the imaging quality of a lens module.
1 . An optical lens, comprising:
an optical portion located at a central position and configured for optical imaging; and
an abutting portion surrounding the optical portion and configured to abut against other optical components,
wherein a surface of the abutting portion is provided with a roughened area and a blackened area.
2 . The optical lens as described in claim 1 , wherein the blackened area does not overlap the roughened area.
3 . The optical lens as described in claim 2 , wherein the abutting portion comprises a connecting portion connected to the optical portion and an engaging portion extending from the connecting portion in a direction facing away from an optical axis and configured to be engaged with the other optical components, the roughened area is disposed on a surface of the connecting portion facing towards an object side, and the blackened area is disposed on a surface of the engaging portion facing towards the object side.
4 . The optical lens as described in claim 1 , wherein the blackened area at least partially overlaps the roughened area.
5 . The optical lens as described in claim 4 , wherein the abutting portion comprises an object side surface close to an object side, an image side surface close to an image side, and a connecting surface connecting the object side surface with the image side surface, the roughened area is disposed on the object side surface and the connecting surface, and the blackened area covers a part of the roughened area on the connecting surface.
6 . The optical lens as described in claim 4 , wherein the abutting portion comprises a connecting portion connected to the optical portion, and an engaging portion extending from the connecting portion in a direction facing away from an optical axis and configured to be engaged with the other optical components, the connecting portion comprises an object side surface close to an object side and an image side surface close to an image side, the roughened area is disposed on the object side surface and the image side surface, and the blackened area covers the roughened area.
7 . The optical lens as described in claim 6 , wherein the object side surface is recessed towards the image side surface to form a first groove, the image side surface is recessed towards the object side surface to form a second groove, and the roughened area is disposed on surfaces of the first groove and the second groove.
8 . The optical lens as described in claim 2 , wherein the blackened area is one of a coated blackened area, a sprayed blackened area, and an adhesive-dispensed blackened area.
9 . A lens module, comprising:
a lens barrel; and
the optical lens according to claim 1 received in the lens barrel.