A lens-equipped optical waveguide device for a touch panel comprises an
optical waveguide including an under cladding layer and a plurality of
cores; and a lens device having a mounting surface for placing the
optical waveguide thereon and a lens formed in an end portion of the
mounting surface. The mounting surface of the lens device includes an
adhesive receiving groove formed therein, and the optical waveguide
includes a through hole penetrating in the direction of the thickness of
the optical waveguide and in communication with the adhesive receiving
groove so that the bonding between the mounting surface and the optical
waveguide with the adhesive is achieved by using the adhesive receiving
groove and the through hole.