Patent ID: 8531779

Claim:
A lens driving module, comprising: a driving barrel, being a hollow barrel structure, and having an end as a light entering end provided for entering a light of an object to be photographed, and the other end as an image end situated opposite to the light entering end, and the driving barrel further having at least one first groove, at least one second groove and at least one controlling convex dot formed on an inner wall of the driving barrel, and the at least one controlling convex dot being disposed at the image end of the driving barrel and protruded axially; a first zooming barrel, being a hollow barrel structure installed at the light entering end of the driving barrel, and the at least one first groove having at least one first-direction convex dot formed on an outer wall of the first zooming barrel and embedded into the at least one first groove; a second zooming barrel, being a hollow barrel structure installed at the image end of the driving barrel, and having at least one second-direction convex dot formed on an outer wall of the second zooming barrel and corresponding to the at least one second groove and embedded into the at least one second groove; and a focusing barrel, being a hollow barrel structure installed at the image end of the driving barrel, and having at least one third groove formed on an outer wall of the focusing barrel and corresponding to the at least one controlling convex dot, and the at least one controlling convex dot being embedded into the at least one third groove; wherein, when the driving barrel is rotated, one side of the at least one first groove and the at least one second groove abuts the at least one first-direction convex dot and the at least one second-direction convex dot, such that the first zooming barrel and the second zooming barrel are moved in an axial direction to drive the lens driving module to perform a zooming operation, and the at least one controlling convex dot is moved along the at least one third groove to move the focusing barrel in the axial direction to drive the lens driving module to perform a focusing operation.