Conclusion Recommendations for Blue Light Damage to the Eyes
1. The lighting effects of blue light hazard and "enriched blue" are not unique to LED lighting products. Some metal halide lamps and some fluorescent lamps have existed for a long time.
2. It is necessary to correctly distinguish between blue light hazard and "blue-enriched" lighting affecting human rhythm. Blue light hazard means that when the blue light radiance reaches Class 2 or Class 3 specified in the standard, it will be more The damage to the human eye in a short time or moment is based on the standard GB/T 20145-2006/CIE S009/E:2002, and the judgment is based on the CTL-0744_2009-laser resolution. However, the effect of "blue-enriched" lighting on human physiology is silently moisturizing, and it will take several months or even years to significantly affect the human rhythm. This aspect is currently the frontier of world scientific research. There are many research reports on the subject, but there is no corresponding assessment standard.
3. At present, some people in China think that the GB/T 20145-2006/CIE S009/E:2002 standard was promulgated and implemented very early. Is it outdated now? However, the standard is still currently valid internationally, including developed countries and regions. version of. The formulation of international standards is based on the collection and analysis of a large amount of experimental data, and my country has never conducted systematic and purposeful experiments and research in this regard. It is inappropriate to say that the standards are outdated, but it is closely It is also necessary to pay attention to international standards that are being revised.
4. Under normal circumstances, only LED lighting products with blue light hazard classification of Class 1 and below can be used indoors. For special groups (diabetics and people affected by light-sensitive drugs) or those who may be in special positions (such as infants and young children) who can directly look at LED lights, non-hazardous LED lighting products should be used.
5. Blue light is an important part of white light, so it is one-sided to say that blue light is filtered out under normal circumstances. It is correct to choose the light composition and quality according to the human circadian rhythm. In order to avoid possible adverse effects on human health due to the use of high color temperature and blue light-rich LED lighting products, the color temperature of indoor LED lighting products should not exceed 4000K, and the general color rendering index should reach 80 or more. Indoor lighting should avoid the use of LED lighting products with a color temperature of 5000K and above. At present, it is completely feasible to promote low color temperature LED products in terms of technology and cost.
6. Returning to the basics, simulating the lighting, light color and changes under natural conditions, is the highest state of lighting product design, manufacturing and lighting design and implementation. For special groups and special occasions, it can adjust the reasonable spectrum and light color that has been proved. In this regard, it is precisely LED lighting that is most effective.
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