The invention provides novel polynucleotides and polypeptides encoded by such polynucleotides and mutants or variants thereof that correspond to a novel human secreted fibulin-like polypeptide. A side passage is contained in the or in each lamella collector and liquid outflow openings are arranged in a combination, as a result of which a hydrodynamic equalisation for a liquid to be distributed results. A voltage signal or current signal which causes induction between the rotor and the stator is generated as the challenge, and a variable which is a function of the caused. In a different aspect, the switching array can be used to provide a controllable radiation source for illuminating a sample with radiation patterns that have predetermined characteristics and separately encoded components.