An electromagnetic lens device includes an electromagnetic lens (2) for transmission, an electromagnetic lens (3) for reception, two primary radiators (4,5) each located at a focal point of one of the electromagnetic lenses (2,3), an arm (12) holding the primary radiators (4,5), and a table (8). The arm (12) is rotatable about a first axis (A) that extends through the centers of the electromagnetic lenses (2,3). The table (8) is rotatable about a second axis (B) that is perpendicular to the first axis (A). The primary radiators (4,5) rotate about the first axis (A) together with the arm (12), and rotate about the second axis (B) together with the table (8).