CCTV exposure LED lights the eyes: not installed diffusion cover tens of seconds can cause blindness

Recently on the Internet, have a saying spread more widely, is the LED light can damage the retina, even lead to blindness. LED lights really hurt eyes? What light is the LED light that around us? To see the reporter's investigation.

life, indoor household commonly used ball bubble lamp, desk lamp, absorb dome light, work used in industrial and mining lamp, outdoor landscape lamp, lawn lamp and so on are likely to be LED lights. LED lamp is made out of light emitting diode lighting appliances, it is our common incandescent bulbs and energy-saving lamps, more energy conservation and environmental protection, long service life. According to CCTV financial reports for the first time, on the market at present most of the white light LED lights, is in the can emit blue light LED chip, covered a layer of yellow phosphor, mixed with white light. But there are many reports, LED lights of blue light can damage the retina. , deputy director of the national electric light source quality supervision and inspection center, said YuAnQi LED some special small, shoot the light intensity per unit area particularly bright, this is the characteristic of it. Because of this characteristic, the general blue light shooting is very strong, the eyes to see directly leads to harm, it is possible.

in fact, the blue in our life is everywhere, like LED lights, computer monitors, mobile phones, digital products, liquid crystal display, etc. , have the shadow of the blue, just some blue light more, some less. Actually these need not fear, so much around us blu-ray, if have, that we might have got eye disease. However, exactly blu-ray under what circumstances will cause harm to people's eyes? Hazard and how much? Experts to do the experiment for us.

according to the national standard, blue for the risk of retinal total is divided into four grades a level is not dangerous, the second is class 1 danger level, and low risk level, followed by 2 kind of danger, the last is 3 classes, high risk level, light a few seconds in a flash can cause irreversible damage to the eyes. Blu-ray, refers to the when blu-ray radial brightness level 2 or 3 class dangerous, can in a relatively short time or harm to the human eye. So we often use LED lights, which belongs to the dangerous level? Reporters came to the laboratory, the main test four samples, one is the LED lamp, a diffusion hood with LED lights, one is to get rid of diffusion of mask and with half power leds, one is to get rid of diffusion driven cover full power leds. After the test, the LED lamp and LED lights with diffusion cover, belong to no dangerous levels.

the following professionals will do is to spread mask off of the LED blue light damage experiment, the one LED lights up after driving power, reporter noticed that the engineer at the time of light, have already can't look straight into the light source. Such a strong blue light, its test result make you very surprised dozens of seconds look to retinal damage, damage is irreversible, serious when even a blind eye. , through different brightness of blue light harm test engineer to come to the conclusion that ordinary LED lighting lamp and LED lamp, with diffusion cover blu-ray amplitude are within the normal range, won't cause harm to human eye retina, without diffusion hood and power is greater than 1 watt LED lamp, whether full or half power, power blu-ray will be considerable damage to the eyes.

expert tips on how to reasonable use leds

so how do we reasonable use LED lights? Experts believe that the time of day, can use a higher light color temperature to improve people's emotion, in order to obtain high work efficiency. In the evening, with low color temperature of light, to give people physical hints, need to have a rest. Look from the testing results of the current, the family on the market with LED lamp basically is to belong to no harm, to the correct use of LED lights, just don't look straight into the LED light, don't pull down the diffusion, spread to cover breakage light-leaking to timely replacement. When consumer is bought, should pay special attention to the packing, the choice of color temperature below 4000 k, is often said the warm color with light, more red components, the composition of blue is less, like the morning sun. The bang

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