A method for producing a cover disc for a housing of an optical measuring device, wherein the cover disc comprises an emission window, a reception window, and a heating assembly having at least one electrical heating conductor, the method comprising:
- laying the heating assembly in a tool mould so that the at least one electrical heating conductor of the heating assembly is arranged after an injection-moulding operation in the region of the reception window and the region of the emission window is left out by the at least one electrical heating conductor of the heating assembly.