A laminated filter includes a first insulation layer including first and second coil patterns and a first capacitor pattern and a second insulation layer including third and fourth coil patterns and second and third capacitor patterns. A method of painting with a lead is also provided. In addition, in the event that the incline angle detector is constituted by the weight and magnets mounted on the weight and reed switches adapted to be switched on by the magnets, and in the event that the inclined state transmitter is constituted by a simple electric circuit, the production costs of the body incline sensor can be suppressed. A safety interface, provided in the transmission line detects changes of the total optical output power in at least one fiber and initiates a shut-down of the input power as soon as a decrease of the total output power is detected, that exceeds a predefined value within a predefined time window.