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Ingabe Ukukhanya Kwe-UV Kuyingozi Empilweni Yomuntu?
2025-10-08
Ozakwethu abaningi baveze ukukhathazeka okukhulu ngokuphepha kwemithombo yokukhanya e- Imishini Yokwelapha i-UVUkukhanya kwe-UV kuthatha ingxenye ethile ye-spectrum ye-electromagnetic futhi kuqaphelisisa
ihlukaniswe ngamabhendi ahlukene ngokusekelwe kubude besikhathi. Lezi zinombolo aziwona nje amagama esayensi; zinokubaluleka okuhlobene eduze nempilo yabantu.
Okokuqala, kubalulekile ukucacisa: Ukukhanya kwe-Ultraviolet kuhlukaniswe ngobude be-wavelength kube yi-UVC (100-280nm), i-UVB (280-320nm), kanye ne-UVA (320-400nm). Phakathi kwalokhu, i-UVC kanye ne-UVB zinamandla aphezulu, futhiUkuchayeka isikhathi eside kungalimaza isikhumba namehlo.
Kodwa-ke, imithombo yokukhanya kwe-UV esetshenziswa emishinini yokunyathelisa evamile yokwelapha ivame ukugxila ebangeni le-UVA elingu-365-405nm. Lokhu kuwela ngaphakathi kwe-spectrum ye-near-ultraviolet. Lolu hlobo lweUkukhanya kuncane futhi kuphephile, futhi ngeke kubangele ukulimala okuyingozi njengokusha.
Akukhona nje kuphela ukuthi le mithombo yokukhanya iphephile ngokwesilinganiso sobude besikhathi, kodwa futhi ihambisana nezindinganiso eziqinile zemboni. Ngaphezu kwalokho, imithombo yesimanje ye-UV-LED ayinayo i-mercury, ayikhiqizi ukukhishwa kwe-ozone, futhi inemisebe encane yokushisa. Izinto zayo kanye nenqubo yokusebenza kuqeda ngempumelelo izingozi zempilo ezihlobene nemithombo yokukhanya yendabuko.
Nakuba kuqinisekiswa ukuphepha, ukusebenza kahle kwazo kokupholisa kuvelele ngokulinganayo. Isibonelo, imithombo yokukhanya enamaza okukhanya afana no-365nm no-385nm ingafinyelela ngokushesha amandla aphezulu ngokukhanya okunamandla.ukuqina, ukuqedela imisebenzi yokuphrinta nokulungisa ngempumelelo. Asikho isidingo sokudela ukusebenza kahle kokukhiqiza ngenxa yokukhathazeka ngokuphepha.
Ngamafuphi, imithombo yokukhanya emishinini yokwelapha ye-UV ehambisanayo isebenza ngaphakathi kwebanga lobude obuphephile, inikeza kokubili ukuphepha kanye nokusebenza kahle okuphezulu. Asikho isidingo sokukhathazeka ngokweqile ngempilo
izingozi.