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一、前言光具有电磁波特性和可测量波长的辐射能。电磁波的波长范围为0.0001nm～30000nm。而人眼能感受的可见光谱仅为380～780nm,并将此等波长看成颜色。当考虑光对眼的损伤作用时,不可勿略可见光谱邻近的非可见辐射线,如波长小于400nm的紫外线(UY)和波长大干780hm的红外线(IR)。紫外线为不可见光,按其波长可再分成三组:UVC<280nm,地球周围的保护性臭氧层可将其滤过,若非如此,地球上就不可能存在生
I. Introduction Light has the characteristics of electromagnetic waves and measurable wavelengths of radiation. The wavelength of the electromagnetic wave is 0.0001 nm to 30000 nm. The human eye can feel the visible spectrum is only 380 ~ 780nm, and these wavelengths as color. When considering the damaging effects of light on the eye, it is not advisable not to notice visible non-visible radiation in the vicinity of the spectrum, such as ultraviolet (UY) wavelengths of less than 400 nm and infrared (IR) wavelengths of 780 nm. UV light is invisible and can be subdivided into three groups according to its wavelength: UVC <280 nm, a protective ozone layer around the Earth can filter it, otherwise it is impossible to exist on Earth