| CPC G02B 7/14 (2013.01) [H04N 23/55 (2023.01)] | 11 Claims |

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1. A lens module, defining a central axis, an object side, and an image side opposite to object side, and the lens module comprising:
a lens barrel comprising a annular structure, an inner annular surface surrounding the central axis and an outer annular surface opposite to and surrounding the inner annular surface, wherein the inner annular surface forms an accommodating space; and
an optical lens assembly and an optical filter sequentially disposed in the accommodating space from the object side to the image side;
wherein the annular structure is disposed on the inner annular surface and surrounds the central axis, the annular structure comprises at least two step portions and at least two bevel portions, all the step portions and the bevel portions are close to the image side, and the optical filter is disposed on the step portions; and
the step portions and the bevel portions are alternately disposed along an annular path of the inner annular surface.
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