LED lamp is safe?

LED lamp is safe? Yesterday at the international semiconductor lighting application technology BBS, this question thinked hard by a large expert. For Shanghai lighting academy director YuAnQi,to answer this question, as if to answer whether the sun safety difficult -- in general, the sun is safe;But if you stare at the sun, also can cause eye burns. Similarly, he thinks, if buy standard lamps and lanterns and used properly, the LED is not higher risk than traditional lamps and lanterns. White LED lights are widely used in indoor lighting, is through the chip emit blue light stimulated yellow phosphor and emit white light; Had proved, blu-ray will damage to the retina. But, this two points can infer the LED street light have damage to the eyes? "Of course not." Shanghai ent hospital cloth bosom said, "blue light is not unique to white LED lamps, mobile phone and computer screen are rich in blue light, our hospital has never received eye injury cases by using LED lights."

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Evaluation LED lamp whether safe or not, may can see if it's more dangerous than traditional lamps and lanterns. YuAnQi said, the traditional fluorescent lamp is glowing through the depression of the ultraviolet radiation from the mercury vapour in the discharge process. Maybe we should worry about ultraviolet (uv) radiation may cause harm to human body, but as long as the phosphor powder evenly daub, ultraviolet radiation leak is limited, so don't even use instrument testing, years of use proved that it is safe. In the same way, as long as LED lamp spectrum and surface brightness control within a certain range, it should be a safe source of light. Another worry is that, due to the color temperature on the high side, the blue light can affect the secretion of melatonin in the brain, people has long been high color temperature irradiation may be easier to insomnia. YuAnQi, says blu-ray's influence on the circadian rhythm is different from person to person, and in the short term it is difficult to show it. If really because of blu-ray plagued by insomnia, as long as with warm yellow LED lights, can greatly improve the effect of sleep.


According to different intensity of blue light in the world, as well as the light source can be divided into zero class, class, class ii or class iii.The human eye can look straight into the lighting requirements under category, category can't stare eyes, three types are not used for lighting. It is understood that terms added LED light national biological safety standards in next year is expected to be announced, and enforcement. When buy light we will see, "zero" or "a" logo, to the light source is greater than the second type of lamps and lanterns, there will be a logo to remind "when cleaning shall not remove lamp shade", and is equipped with warning children should not be looking directly at light source, etc.