A probe head for nuclear magnetic resonance measurements in an area of a surface of a measuring object is disclosed. Such filters require resonators having different resonant frequencies. The roof air bag mounting structure can be easily assembled and reduced in weight. The liquid crystal display device further includes a phase difference compensation element provided between the liquid crystal cell and at least one of the pair of polarizer elements. Where the search box includes at least one edge, at least one of the target edge pairs is specified as including the given edge and one of the at least one edge.