Rumor has it: does the blue light of LED lights hurt your eyes?

The incandescent lamp goes away, the LED lamp is superior. About LED lights exist various "harm" argument, from time to time in the network, circle of friends thrown up: damage to the retina, the impact on the eyes great...... Really?

Does your circle of friends have such an article - "LED blue light can damage the retina" and "LED blue light has a huge impact on the eyes", revealing the secrets behind LED Blu ray"...... To have eliminated the incandescent lamp, home all installed on the LED source of consumers, look at these undoubtedly have a little Meng ring.

The blue light of LED lamp, if have harm to the eye, can you still use later? With the popularity of LED light sources, a similar topic must be interpreted with authority.

According to statistics, the global LED lighting market scale increased from about US $5 billion in 2011 to about US $20 billion 400 million in 2015, with an average annual growth rate of more than 40%. With the enhancement of environmental awareness of the global energy crisis intensifies, residents and LED lighting technology progress and cost reduction, is expected in the next few years LED lighting industry will maintain a rapid growth rate, to 2020, the global LED lighting market will exceed $70 billion, 2015 to 2020 compound annual growth rate of nearly 30%.

With last October, China's plans to eliminate incandescent lamps into the final time limit, LED light source is also becoming the mainstream market products. In February 9th, in the lighting city near the Shili River in Beijing, LED light source became absolutely mainstream, and even some students' learning lamp products directly wrote "no blue light" on the package. "Why write 'no Blu ray'? Is blue light harmful to your eyes?" In the face of questions from reporters, the store quickly explained: "it is said that the LED blue light is harmful to the eyes, but in fact, as long as a qualified product, radiation brightness blue are in a reasonable range, there is not much harm to the eyes." Most consumers choose passively

Although the LED blue light is harmful to the eyes "speech has been spread on the Internet, but for most non professional consumers, even if some products are harmful, do not know how to choose to buy qualified products. "So I dare not buy too cheap, and the choice is also big brands."." Consumer Chen Xiaomin told reporters. And "spectrum", "luminous flux" such professional vocabulary, is to let consumers can not find the mind.

Well, is it possible to look at the blue light content through the product's published parameters? Store staff told reporters that only from the product published "voltage and frequency" is unable to calculate whether the blue light excessive, because the voltage and frequency are electrical indicators, and Blu ray is an optical indicator. And it claims "luminous flux" is an optical indicator, but only the total luminous flux of white light, rather than the luminous flux of blue light, so it is difficult for ordinary consumers to judge whether the lamp is too blue. "Most consumers come, or directly say what brand, what specifications, and directly took away.". The real 'truer' really not much." Staff told reporters. Indoor LED light source color temperature is not over 4000K

So, how dangerous is LED Blu ray? In fact, the blue light hazards and the "blue rich" lighting effects are not only LED lighting products, some of the previous metal halide lamps and some fluorescent lamps already exist.

Chinese Lighting Association vice chairman of Science Committee An Lanpo told reporters, to distinguish between blue light hazards and "rich blue" lighting effect people's secretary Chen rhythm in these two different situations, Blu ray harm is when the blue radiance reached the standard requirements of the 2 class or 3 class, in a relatively short period of time or moment to harm human eyes, it is based on the standard GB/T20145-2006/CIES009/E:2002, the decision is based on the CTL-0744_2009-laser resolution. The physiological effect of rich blue "lighting of the people is silent and after several months or even years time will significantly affect the division Chen rhythm, which is a popular topic in the world of scientific research, research more, but there is no corresponding assessment criteria.

In ordinary circumstances, indoor use only blue light hazards classified in the 1 and below LED lighting products. In order to avoid the possible adverse effects on human health due to the use of high color temperature and rich blue LED lighting products, indoor LED lighting products shall not exceed 4000K in color temperature, and the average color rendering index shall be above 80. Indoor lighting should avoid the use of color temperature 5000K and above LED lighting products. Ann Lanpo also said that blue is an important part of composition of white light, so under normal circumstances to filter out the blue light is one-sided, according to our choice of human physiological rhythm Chen light component and quality, it is right.

For patients with special populations (diabetic and photosensitive drugs), or may be in a special position (such as infants and young children) who can look straight at LED lights, they should use a harmless LED lighting product.

Because the infant eyes delicate, unable to filter on Blu ray, and patients with diabetes after years of development, have retinopathy, retinal light damage bears about value decreased greatly, the effect of blue light on the larger vision.

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