Abstract: A fifth wheel comprising a coupling plate and an anti-theft protection device, the anti-theft protection device being configured such that it is integrally connected to the coupling plate and can be electrically actuated and the anti-theft protection device being arranged such that it is not discernible from the outside.

Abstract: The invention relates to a simplified method for assembling optoelectronic components that are enclosed in plastic and the construction thereof. The individual component unit contains a semiconductor chip (11) and an optical window (10). A hermetic inclusion of at least the optically active of the semiconductor chip via the window ensues in the wafer-slicing process, i.e. before separation. A (window) wafer provided with recesses (7) and occupied, in areas, by a joining layer is joined to the pre-prepared semiconductor wafer (1) via the joining layer that seals the optically active areas. Before separation, the contact areas and the separating areas of the separation are exposed by a severing (8) that is precise with regard to the recesses. An inspection measuring of the component units can ensue when the wafers are joined.