With the widespread use of LED lighting products and a deeper understanding of their performance,the retinal blue light hazards of LED lighting products are receiving increasing attention from users.In response to the retinal blue light hazards,the international standard IEC TR 62778:2014 provides a guiding document for evaluating the blue light hazards of light sources and lamps.The standard points out that the blue light hazard assessment results of light sources can be applied to lamps,one of the prerequisites for this inference is the law of conservation of luminance,which has been experimentally proven to not always hold true.At the same time,based on this standard,it was discussed whether LED lighting products need to measure blue light hazards.
LED lighting productsblue light hazardlaw of conservation of luminance
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