UV is the floorboard of electromagnetic wave wavelength from 10nm to 400nm wavelengths of light, is not visible, not visible, cannot cause people's vision, can not be human eyes. Arguably ultraviolet germicidal lamp should not be visible, then, why the ultraviolet germicidal lamp is our use of visible blue purple light? And the general hospital with sterilizing lamps (low pressure mercury lamp), also have blue purple light?
Germicidal lamps are the use of UV peaks for 254nm ultraviolet to sterilize, lamp power from 4W to 100W range, the main function is to sterilization, disinfection, air purification.
Ultraviolet rays are invisible light, quartz glass ultraviolet lamp is actually to ultraviolet ray transmitting tube, low-pressure mercury lamp in by electron bombardment from mercury spectrum, mercury spectrum in ultraviolet and visible, 405, 435, 545nm light, into the range of visible light, which contains the blue and violet, so ultraviolet light the lamp looked pale blue. But the real effect is not visible to ultraviolet 254nm. Germicidal lamp in the technology can be said to be completely can achieve full UV, why not do so? As we know, all ultraviolet rays are radiation hazards, high-dose, short-term small measurement irradiation are easily to cause a person's skin to skin cancer, or induce the carcinogenesis, more common is the ultraviolet harm and danger to human eye burns.
If we use all ultraviolet rays ultraviolet germicidal lamp, then we will not see light in the work, that harm will of people imperceptibly produced. And now the production that UV lamp is visible to the naked eye special blue purple light, approximate ultraviolet purple, so to remind people to pay attention, you are in the ultraviolet irradiation, if not necessary, do not stay long, or to make equipment sealed with Dai An full protective equipment. Otherwise, the lights do not know, how can there still inspection equipment, safe work, read a book, that is very dangerous, eyes soon be blind, long-term work in this kind of environment and unaware, in the course of time will be the skin, even skin cancer and other consequences. So the speed than company once again remind the user: lamp UV germicidal lamps are deliberately made the blue purple.
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