| 摘要 |
PROBLEM TO BE SOLVED: To deactivate or sterilize microorganisms reliably by irradiating a fluid with UV rays.SOLUTION: In a UV lamp 1, annular units 6 are provided outside a tube body 3 composed of a transmission tube, e.g. a quartz tube, and a reflection surface 4 is arranged on the outer surface of the tube body 3. In the individual annular units 6, UV light emitting diodes 7 are arranged at intervals in the circumferential direction. The UV light L radiated from the UV light-emitting diodes 7 is inclined to the water flowing direction so as to be reflected on the reflection surface 4. The UV light passes through the water flow, is reflected on the reflection surface 4, progresses again toward the water flow and is directed to the water flow. |
