紫外线杀菌原理

Principle of UV sterilization    

紫外线是介于可视光线和X射线之间的电磁波频谱。200nm至400nm的紫外光谱有很强的杀菌效力， 其峰值在265nm。 在这个波长范围内的紫外线主要是通过刺穿细胞膜，破坏细胞内脱氧核糖核酸和破坏细胞内的其它分子，使微生物不能再复制和繁殖，而最终达到消毒作用。 紫外线杀菌器实物拍摄依照波长范围，可将紫外线分为4个波段:
真空紫外线:40 – 200nm 紫外线c: 200- 280nm 紫外线b: 280- 315nm 紫外线a: 315- 400nm。

Ultraviolet is an electromagnetic wave spectrum that falls between visible light and X-rays. 

The UV spectrum from 200nm to 400nm has strong bactericidal efficacy, with a peak at 265nm.

 The ultraviolet radiation within this wavelength range mainly penetrates the cell membrane, 

destroys deoxyribonucleic acid and other molecules inside the cell, preventing microorganisms from replicating and reproducing, 

and ultimately achieving disinfection effects. The physical shooting of the ultraviolet sterilizer can be divided into four wavelength bands according to the wavelength range:

Vacuum UV: 40– 200nm UV C: 200-280nm UV B: 280-315nm UV A: 315-400nm.

UV operating structure principle