| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact irradiation angle variable flashing device capable of improving the utilization efficiency of flash light from a light source by enlarging the variable range of an irradiation angle in a horizontal direction. SOLUTION: By changing both of a distance on an optical axis K between an Xe tube Ki and a reflector and the opening angle of a side reflector Ha arranged to be opposed to the sides of both side surfaces of the reflector, the insufficiency of the variable range of the irradiation angle in the horizontal direction caused by the change of only the distance is compensated by the change of the opening angle of the reflector Ha. Thus, the utilization efficiency of the flash light is improved. |
