US Patent 7982979 Lens module

A lens module includes a lens and an opaque plate. The lens is received in the main body, and includes an imaging portion and a non-imaging portion surrounding the imaging portion. An annular flange is extended upward from the image-side surface of the non-imaging portion. The flange and the image-side surface defines a receiving groove. The opaque plate includes a circular opening corresponding to the imaging portion and a lightproof solid body surrounding the opening. The opaque plate is disposed on the image-side surface of non-imaging portion of the lens with the lightproof solid body received in the receiving groove.