Many domestic experts have called for the update of China's existing photobiosafety indicators, and recommended that the country adjust the photobiosafety standards from recommended standards to mandatory standards, and at the same time monitor the risk of blue light hazards on LEDs nationwide.
Recently, it has been reported that LED blue light spillage may cause damage to the retina, even blindness. Is the LED light known as the fourth-generation light source really unsafe? "LED blue light hazard" was sensationalized by the blindness caused by Xi'an baby bath. In this forum, experts from various conferences on "lighting safety" were discussed in depth. “The current standard limits are based on adult and experimental data and do not take into account certain special populations. For example, infants and young children may look directly at the light source for a long time, causing damage to the retina.†Fudan University Eye and ENT Hospital Dean Sun Xinghuai pointed out that children with delicate eyes, old people and consumers with eye diseases should pay attention to the danger of blue light. This special group should use zero-grade products.
Experts have suggested to study and establish a semiconductor lighting standard system, and gradually update product testing standards, safety standards, performance standards and energy efficiency standards, and start from the application of products, and gradually advance to the upstream of the industrial chain.
In fact, all illumination sources, including natural light, contain blue light. In LED light sources, the white light emitted by most light sources is a mixture of blue LED chips and yellow phosphors. other. By developing products with low color temperatures, enhanced secondary light distribution can significantly reduce its hazards. At the moment, it is imperative to establish mandatory standards at the national level.
It is reported that China's photobiosafety appraisal mainly refers to the national recommended standards of "photobiosafety of lamps and lamp systems", and its update speed is seriously lagging behind, and it is not mandatory, and it is difficult to bind enterprises.
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