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what’s the hazards and prevention methods of the blue LED light to the human
Blue LED lights really is so much harm to our eyes ? Is the Called ” blue spill ” really “potential killers “that hurt our eyes? Many people have had a doubt and anxiety after hearing the problem that the blue LED lamps injury our health , the experts say that LED lights used in outdoor and large spaces is no problem, but the family should be used with caution , especially the three groups of people need to be extra careful.
Although on the issue that the blue LED injury our health , the industry and experts ‘ opinions are not entirely consistent. But one thing has not disputed that the LED light belongs to the rich blue. ,Mou Tongsheng who are the member of the International standardization of optical radiation safety committee, professor of the ZhejiangUniversity reminded, there are three types of people who should be used with caution , first class , apparently, is the delicate eyes of children . The second category , diabetes ,since developed for ten years ,there are lesions of the retina , the approximately of retinal withstanding the light damage is declined significantly. The third category is the patients taking photosensitive drugs, there are many light-sensitive drugs in our lives, such as doxycycline , ciprofloxacin, oral hypoglycemic agents D-860 etc, having taken the pills,the light damage may be more obvious , not only to be careful with the light , the sun should be extra careful .
The blue light does not mean blue light , but the high energy visible light that is of the wavelength of 400-500 nm . It can penetrate the lens to reach the retina , causing optical damage and accelerate the oxidation of macular cells . Thus , the blue light is the most hazardous visible the study confirmed.
How to reduce the harm caused by LED lamps ?
LED light is known as energy saving , but which must avoid a very high color temperature. ( Indoors, color temperature to come down. )
What is the color temperature ? The so-called color temperature is the scale measuring the light source and color , the low color temperature is the warm light we usually say , the red component is more, less blue component . Conversely, the color temperature of the cool bluish light is relatively high . Among Our common light sources , the candlelight is of about 2000K color temperature, incandescent lamp is 3000K, the morning sun is about 4400K, noon rose to 5600K. YuAnQi who are the president of the Senior Engineer , Shanghai Illuminating Engineering Society said that , what is the best is that conform to the laws of nature when we use the light in different times of a day, and the color temperature of the LED lights is currently generally high on the market , which can cause interference on the human body clock more or less :
when most of the Family use the lights is at night , which require the low color temperature light , use the white lighting products beyond the color temperature for long time will affect sleep, affecting the disorders of the biological clock , thereby reducing the human immune system .
The color temperature of most of lamps isn’t marked on the packaging on the market . There are two just marked on the manual . Experts call the State should provide that how much the color temperature of the lighting products should be clearly marked on the packaging.
Consumers should also avoid a misunderstanding, that is , the brighter the light, the better . LED lamps is best to be accompanied by the shade, on the one hand , the light can be softer,on the other hand , testing proved that this can reduce 1-2 orders of magnitude of the blue light spill . Many manufacturers in order to improve the light efficiency , the most obvious is the LED tube, many of which were a bare one , this is uncomfortable for people . there is a hood under the table lamp , which make that the dazzle light becomes not.
However, this does not mean that we do not use the LED lighting , with the deteriorating global environment, what is imperative is that save energy to protect our globe , we surely inseparable from the light at night, instead of using the fluorescent lamps polluting environment and harming to our health, might as well replace with the more environmentally friendly LED lighting, LED lighting as the third generation of lighting is based on the semiconductor light emitting diodes, the conversion rate of the luminous efficiency and environmentally friendly effects has significantly been improved.
Nowadays,the LED flood light and LED tube light is most widely used as the representatives of the decorative lighting and the home lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where the higher brightness is needed to illuminate,meanwhile,there a large number of factory engaging in developing and producing the LED light,Lead Lighting is just one of them,which adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light so that fully guaranteed stabe and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while low voltage constant current driver ensure the AC can be converted into the DC to improve energy efficiency of the LED tube light and LED flood light and reduce the waste heat energy and stroboscopic effect exciting the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is Known as energy-saving and environmental protection ,login http://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.
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Post je objavljen 30.08.2013. u 15:48 sati.