| 摘要 |
PROBLEM TO BE SOLVED: To provide a sterilizer for improving sterilization efficiency while being reduced in size.SOLUTION: In a sterilization device 100 including a housing 110 that has a flow channel R for a fluid to be sterilized, and an LED element 122 that is provided in the housing 110 and applies ultraviolet rays into the flow channel R, the inner wall surface of the flow channel R has a pair of reflecting surfaces (first reflecting surface 111, second reflecting surface 112) that cause the ultraviolet rays applied from the LED element 122 to be reflected multiple times while directing them from one end of the flow channel R to the other, and the first reflecting surface 111 side is provided with a return surface 111a, which is configured from a surface perpendicular to the optical axis of light after being reflected multiple times from one end to the other and which returns the light toward the original direction. |
