¿Cómo daña la luz LED UVC (254/365nm) al cuerpo humano y cómo protegerlo?
Para comprender el daño de los rayos ultravioleta en el cuerpo humano de manera más intuitiva, primero permítanme presentarles el conocimiento básico de los rayos ultravioleta (UV). Ultravioleta (UV) contiene tres hermanos: UVA/UVB/UVC.
Cada banda tiene una personalidad diferente. Aquí solo se realizan UVA y UVC; 254nm pertenece a la banda UVC, mientras que 365nm pertenece a la banda UVA. La luz ultravioleta tiene una longitud de onda corta pero alta energía. El daño al cuerpo humano es diferente de los dos, por lo que hablaré de ellos por separado.
The comparison chart of ultraviolet sterilization ability of different wavelength bands First, 254nm: 254nm is the band with the best sterilization effect, which belongs to the deep ultraviolet band, which is what we usually call UVC. This band is mainly used for sterilization. By destroying the genetic material such as DNA of bacteria and viruses, UVC changes the genetic transcription characteristics of cells, so that the organism loses the ability to synthesize and reproduce proteins, and can kill more than 99 percent of bacteria in a very short period of time. You need to be extra careful when you are in contact with this frequency band in daily operations, and the human body is very harmful. In the eye in particular, after UVC is absorbed by the cornea, the DNA of the corneal epithelial cells is damaged, the cells die, and the underlying nerve plexus is exposed. After the nerve is exposed, pain is transmitted directly to the brain until new corneal epithelial cells grow and re-cover the nerve plexus. However, although the UVC force value is very strong, it also has weaknesses. Its biggest disadvantage is its weak penetration ability, which can be blocked by ordinary plastic and glass. If you are accidentally exposed to ultraviolet rays in this band, it is best to go to the hospital and ask your doctor for advice. After talking about 254nm, let's talk about 365nm: 365nm is UVA, which belongs to shallow ultraviolet. UVA can directly pass through the clouds and reach the earth, so the sun we are in daily contact with contains a lot of UVA. This band is mainly used for curing in daily life, and the main application fields are printing, nail art, textile and so on. When we look at the teeth, this light uses UVA.
En comparación con los rayos UVC, los rayos UVA son relativamente suaves y no causan daños oculares agudos. Pero también es perjudicial para la piel bronceada y arrugada por el sol, y acelera la progresión de las cataratas y la degeneración macular relacionada con la edad-. Por lo tanto, para la lámpara UV de 365 nm, use protector solar y ¡no mire directamente a los ojos!
