Patent ID: 8366280

Claim:
A lens adjusting device, comprising: a frame having a guiding hole; a lens, fixed on the frame; a base, having a through hole; at least a positioning structure, disposed on the base for movably positioning the frame on a plane above the base; and a locking device, capable of locking the frame to the base, comprising: a screw, sequentially penetrating the guiding hole of the frame and the through hole of the base to extend to below the base, and the size of the through hole being greater than the size of a cross-section of the screw corresponding to the through hole; an asymmetrical round nut, disposed below the base to be assembled to the screw, such that the base is fastened between the screw and the asymmetrical round nut; and a fixer, disposed on the frame and capable of constraining rotation of the asymmetrical round nut; wherein when the screw is unfastened from the base, the lens is capable of moving in a horizontal direction and a vertical direction.