APPARATUS FOR IRRADIATING MEDIUM WITH ULTRAVIOLET RAYS

摘要

PURPOSE: To increase an irradiation density by providing the outer side of a tubular body formed by using a material transmissive to UV-light with UV- light sources and forming these UV-light sources of UV-light flat radiators. CONSTITUTION: The flat radiators 16 disposed in such a manner that their axes are parallel with each other are disposed in a direction where their main axes 22 extend radially with the tubular body 12. Sides 18 of a narrow width come into contact with the tubular body 12 and contact cooling is effected by the contact between the flat radiators 16 and the tubular body 12 induced by this contact. One-side ends of reflector legs 26 and 28 similarly come into contact with the tubular body 12 and the other-side ends come into contact with the sides 18 of the narrow width on the outer side of the flat radiators 16. The contact cooling is made possible even by the reflector legs 26 and 28. The main irradiation direction of the flat radiators 16 have a direction perpendicular the main axes 22 and the light is cast into the tubular body 12. As a result, a sterilization effect is enhanced.