A linear electric motor including a primary part having a flux guiding element on the end faces of the primary part, a three-phase winding on the primary part that produces a first magnetic field and a permanent magnet on each end face that produces a second magnetic field that is superimposed on the first field to reduce force ripple is disclosed. A camera captures images including detection regions set in adjacent traffic lanes to the rear of the vehicle. The headband is connected to the lower peripheral edge of the crown main body by a piece of stretchable fabric which is sewn to cover the headband. In another embodiment, the suspension system includes an additional lateral support member which provides a rigid square-shaped suspension system which further increases rigidity. Further, a difference in diffraction efficiencies by a difference in the deflection directions is corrected by controlling the laser power independently from each other. The biophysical model establishes a relationship between the molecular properties and the ADME properties.