LED lighting security is hot

With the expansion of LED lighting applications, the impact of LED light sources on health has also been widely discussed in the near future, including the direct view of the blue light of the LED damage to the macula and the impact of inhibition of melatonin.

The advantages of LED light source LED's high luminous efficiency, long use, easy recovery and environmental characteristics make LED light source become the darling of lighting applications, LED energy conversion efficiency is high, the service life is longer than the fluorescent light and incandescent light, Plus no harmful substances such as mercury, is currently the most environmentally friendly choice of light source, on the other hand, LED light source does not have infrared and ultraviolet light, can avoid tanning issues, and can reduce the high temperature generated by the light source, and LED response time is fast, The human eye does not feel the flash of the light source.

Health concerns caused by Blu-ray However, with the continuous expansion of LED applications, as well as consumer acceptance of LED is gradually increasing, the impact of LED light source on health is widely discussed, among them, users stare at the time including computers, TV With mobile phones and other backlight screens, the impact of blue LEDs on health is the most concern. The blue light in the LED light source has the characteristics of short wavelength, and the blue light wavelength is about 380-495 nm, which is the shortest wavelength but highest energy light in the visible light. One study of light environmental light biosafety done by Professor Yonghong Yong of Chongqing University pointed out that After animal experiments, as the intensity of blue light increases, blue light is aggravated by macular damage to the retina, and on the other hand, studies have also pointed out that the blue light irradiation may be the cause of age-related macular degeneration.

Regarding the effect of Blu-ray on health, in addition to causing macular damage to the retina, this study also examined whether blue light inhibits the secretion of melatonin, comparing the short-wave blue light with a fluorescent lamp with a color temperature of 4,000k, and finding that the wave is short The blue light will inhibit the secretion of melatonin, increase alertness, and increase body temperature and heart rhythm. Experts believe that watching TV screens, computer screens, and mobile phone screens for a long time may have an impact on the user's eyes and physiological clocks.

In addition, the use of different color temperature LED light source will also have different effects on health, in general, the higher the color temperature value, the more cool the color of the light source, the lower the color temperature value, the more warm tone, medium and high color temperature makes the user spirit Concentrated, but if the color temperature of 7,000K LED light source, it may accelerate the appearance of burnout, according to experimental results, color temperature is too low, such as 2,500K ~ 3,000K easier to make people feel sleepy, compared to Under the LED light source with a color temperature of 3,500K~5,000K, some people think that this choice is more moderate.