A process for producing a rotationally symmetrical cast aluminum component by die casting, which is reworked partially on its inner andor outer lateral surfaces. A first bias voltage is applied on a conduction terminal of the third transistor and a second bias voltage is applied on a conduction terminal of the fourth transistor. In certain embodiments, the secondary light source is formed with a fluorescent material disposed at an inner surface of the head lens member. The PLD further includes a serial peripheral interface port adapted to receive configuration data from an external device for transfer into one of the volatile memory and the non-volatile memory. The interference detection unit carries out multiple superpositioning of the input signal and scales the multiple superpositioned input signal depending on the period length of the interference signal in order to detect the signal corresponding to the interference signal.