| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiation device capable of suppressing deterioration of visibility due to a light scattering body in a light radiation direction, and capable of reducing production cost.SOLUTION: A radiation device 1 comprises: a first light reflection surface 41a capable of rotating around a first rotation shaft; a second light reflection surface 41b capable of rotating around a second rotation shaft included in a plane S orthogonal to the first rotation shaft; a visible light source 21 for emitting visible light Rv toward an intersection F of the plane S and first rotation shaft; an invisible light source 31 for emitting invisible light Ri toward the intersection; and a controller 7 for controlling rotation driving of the respective light reflection surfaces and operation of the respective light sources, so that, the invisible light which precedes in time-variant and the visible light scan a radiation object area. The controller 7 stops emission of the visible light Rv, when the invisible light Ri is scattered by the light scattering body and the controller receives the scattered light. |
