Kā UVC LED gaisma (254/365nm) kaitē cilvēka ķermenim un kā to aizsargāt?
Lai intuitīvāk izprastu ultravioleto staru kaitējumu cilvēka ķermenim, ļaujiet man vispirms iepazīstināt ar pamatzināšanām par ultravioletajiem stariem (UV). Ultravioletais (UV) satur trīs brāļus: UVA/UVB/UVC.
Katrai grupai ir atšķirīga personība. Šeit tiek veikti tikai UVA un UVC; 254 nm pieder UVC joslai, savukārt 365 nm pieder UVA joslai. Ultravioletajai gaismai ir īss viļņa garums, bet liela enerģija. Cilvēka ķermeņa bojājumi atšķiras no abiem, tāpēc par tiem runāšu atsevišķi.
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.
Salīdzinot ar UVC, UVA ir salīdzinoši viegla un neizraisa akūtus acu bojājumus. Taču tas ir arī kaitīgs iedegumam, saules grumbu skartai ādai un paātrina kataraktas un ar vecumu{0}}saistītas makulas deģenerācijas progresēšanu. Tāpēc 365 nm UV lampai izmantojiet sauļošanās līdzekli un neskatieties tieši acīs!
