Sliney D H
Department of Environmental Health Sciences, The Johns Hopkins University School of Public Health, Baltimore, MD, USA.
Eye (Lond). 2016 Feb;30(2):222-9. doi: 10.1038/eye.2015.252. Epub 2016 Jan 15.
In this International Year of Light, it is particularly appropriate to review the historical concept of what is light and the controversies surrounding the extent of the visible spectrum. Today we recognize that light possesses both a wave and particle nature. It is also clear that the limits of visibility really extend from about 310 nm in the ultraviolet (in youth) to about 1100 nm in the near-infrared, but depend very much on the radiance, that is, 'brightness' of the light source. The spectral content of artificial lighting are undergoing very significant changes in our lifetime, and the full biological implications of the spectral content of newer lighting technologies remain to be fully explored.
在这个国际光年，特别适合回顾关于光是什么的历史概念以及围绕可见光谱范围的争议。如今我们认识到光具有波粒二象性。同样明显的是，可见度的极限实际上从紫外线中的约310纳米（在年轻人中）延伸到近红外线中的约1100纳米，但这在很大程度上取决于光源的辐射率，即“亮度”。在我们的有生之年，人工照明的光谱成分正在经历非常显著的变化，而新型照明技术光谱成分的全部生物学影响仍有待充分探索。
