利用双光束光谱光度计测试手机膜防蓝光性能

Double beam spectral photometer was used to test the anti-blue light performance of mobile phone film

透过手机膜的光线的光谱透射比能够很好地反应手机膜的防蓝光性能。利用LED光源和双光束光谱光度计搭建光路测试手机膜在蓝色光谱范围(380~500nm)内的光谱透射比。同时,通过比较手机膜在蓝光峰值波长467.5nm处的光谱透射比,从而评价市场上防蓝光手机膜的防蓝光性能。实验表明,大部分标有"防蓝光"字样的手机膜的确具有一定程度的防蓝光能力,但防蓝光数值各有不同,最小的不到10%,最大的能达到近70%,作用有限。该实验结果可为后续研究提供参考。

The spectral transmittance of light passing through the mobile phone film can reflect the anti-blue light performance of the mobile phone film very well.An LED light source and a dual-beam spectrophotometer were used to build an optical path to test the spectral transmittance of the mobile phone film in the blue spectral range(380-500 nm).At the same time,by comparing the spectral transmittance of the mobile phone film at the blue peak wavelength of 467.5 nm,the blue light protection performance of the blue light protection mobile phone film in the market is evaluated.Experimental results show that most of the mobile phone films marked with“blue light protection”do have a certain degree of blue light protection ability,but the blue light protection value is different,the smallest can be less than 10%,the largest can reach nearly 70%,the effect is limited.The experimental results can provide a reference for future research.