Patent ID: 7477816

Claim:
A lens-equipped optical waveguide device for a touch panel comprising a lens device and an optical waveguide mounted thereon: said optical waveguide including an under cladding layer, and a plurality of cores formed on a surface of the under cladding layer with respective ends thereof arranged in parallel to each other along one edge portion of the under cladding layer; and said lens device having a mounting surface for placing the optical waveguide thereon, and a lens formed in an end portion of the mounting surface, said one edge portion of the under cladding layer along which the ends of the cores were formed having an end surface which abuts the lens of the lens device when the optical waveguide is placed on the mounting surface of the lens device, wherein said lens device is formed with a protrusion on an abutting surface thereof for abutting said end surface of the under cladding layer, while the end surface of the under cladding layer is formed with a recess complementary to the protrusion so that meshing engagement between the protrusion and the recess causes the end surface of the under cladding layer and the abutting surface of the lens device to be in intimate contact with each other.