A lens-equipped optical waveguide device for a touch panel includes an optical waveguide including an under cladding layer, and a plurality of cores formed on a surface of the under cladding layer with respective ends in parallel along one edge portion of the under cladding layer; and a lens device having amounting surface for placing the optical waveguide, and a lens formed in an end portion of the mounting surface. The one edge portion has an end surface which abuts the lens when the optical waveguide is placed on the lens device. The lens device is formed with a protrusion on its abutting surface for abutting the end surface, while the end surface is formed with a recess complementary to the protrusion so that the protrusion and the recess are meshed to cause the end surface and the abutting surface to be in intimate contact with each other.

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