AR head ring with digital zoom function

The utility model relates to the technical field of AR imaging, in particular to an AR head ring with a digital zoom function, which comprises a cap and a head ring, the outer wall of the cap abuts against the head ring, the end part of the head ring is provided with a zoom mechanism, the zoom mechanism comprises a clamping block, the outer wall of the clamping block is fixedly connected with the head ring, the outer wall of the clamping block is connected with a connecting block in a clamping manner, and the outer wall of the clamping block is connected with the connecting block in a clamping manner. The outer wall of the connecting block is fixedly connected with the straight rod, the outer wall of the straight rod is movably connected with the connecting piece, the inner wall of the connecting piece is movably connected with the connecting frame, and the inner wall of the connecting frame is fixedly connected with the first lens cone. By manually pulling the connecting frame, the connecting frame deflects