UVLED environmental protection and energy saving is a major trend in the development of UV lamps, so is UVLED harmful to the human body?
First, find out the classification of ultraviolet light: UV-A (315-400 nanometers, also called long-wave ultraviolet), UV-B (280-315 nanometers, also called medium-wave ultraviolet), UV-C (100-280 nanometers, also It is called short-wave ultraviolet light; secondly, violet light and ultraviolet light are distinguished. At present, violet light and ultraviolet light are often used as one concept in the market. In fact, they are two concepts. Ultraviolet generally refers to below 400nm, of course, it also refers to 410nm in academics. Below, ultraviolet light is invisible, just like infrared. The purple light refers to the light above 410nm, that is, the purple light, which is visible, just like the usual white light, red light, etc.
Now to answer the above question, is UV LED harmful to the human body? The answer is no, but you can’t shoot your eyes directly. It’s affirmative. Not only the purple light, but also the white and red light can’t shoot your eyes directly. Is UV light harmful? This has to be answered separately. UV-B (280-315 nanometers, also called medium-wave ultraviolet), UV-C (100-280 nanometers, also called short-wave ultraviolet rays, are definitely harmful. Sunlight contains these. Therefore, it is easy to damage the skin when the sun is very strong, so UV-B and UV-C will definitely harm the body when reaching a certain amount, so protective measures must be taken. As for UVA, it is less harmful to the body, especially for wide-ranging applications. With wavelengths above 360nm, human skin has a certain protective function, so it can be regarded as harmless to the human body. Of course, it should not be directly exposed to the eyes.
Therefore, more and more people of insight are using UV LEDs to replace traditional high-pressure mercury lamps for glue curing, ink curing and other purposes, and it has become a booming trend.
