Lub teeb ci ultraviolet yog ib hom teeb pom kev uas tuaj yeem tsim lub teeb ci ultraviolet nrog ntau yam ua tau zoo. Qhov tseeb, feem ntau muaj cov duab hluav taws xob ultraviolet nyob rau hauv cov teeb pom kev dav, thiab lub hnub yog qhov tseem ceeb tshaj plaws. Lub teeb liab paj hauv lub teeb ultraviolet yog lub teeb LED hlaws uas tso tawm lub teeb ci ultraviolet, uas tuaj yeem siv rau ultraviolet kom tsis muaj menyuam, ua kom muaj zog ntawm lub teeb (tsom iav tsom iav, kuaj nyiaj), cuab thiab tua kab, thiab luam duab. Kev siv cov tshuaj qis qis qis dua ntawm ultraviolet hluav taws xob los ua rau tsis muaj kev hloov pauv uas tshwm sim los ntawm cov kab mob me me kuj tseem tuaj yeem siv los ua kev txhais tau tias ntawm kev tsim cov kab mob microbial mutagenesis. Ultraviolet rays kuj tseem tuaj yeem hloov cov pa oxygen hauv huab cua mus rau hauv ozone, uas muaj cov tshuaj tua kab mob.
UV sib txawv wavelengths sib txawv rau kev siv sib txawv. Tom ntej no, Kuv yuav tham txog qhov sib txawv UV wavelengths thiab lawv siv sib xws.
UVA (320 ～ 400nm): UV txheej (UV number case, UV varnish, UV xim) UV kua nplaum ua kom zoo. UV txheej pib xav tau 395nm ncov tua, 375nm thiab 385nm kuj tseem yog ib nrab doped. Tus nqi siab tshaj plaws ntawm UV kua nplaum yog 365nm; UVA ultraviolet hluav taws xob nrog lub nthwv dej ntawm 360nm ua raws cov duab kab lus teb kab ntawm kab, thiab tuaj yeem siv los ua kab teeb rau kab. UVA ultraviolet rays nrog lub nthwv dej ntawm 300-420nm tuaj yeem hla los ntawm cov iav xim tshwj xeeb uas txiav tag nrho lub teeb pom kev, thiab tsuas yog tso tawm ze-ultraviolet lub teeb nruab nrab ntawm 365nm, uas tuaj yeem siv rau kev txheeb xyuas cov ore, kho kom zoo nkauj theem, nyiaj pov thawj thiab lwm qhov chaw .
Lub hauv paus ntsiab lus ntawm UV LED teeb lub teeb hlaws: Ntxiv cov tshuaj pleev xim rau lossis cov tshuaj pleev xim rau cov tshuaj tshwj xeeb uas tsim los. Tom qab nqus cov teeb pom kev zoo ultraviolet hauv ultraviolet (UV) kho cov cuab yeej, cov dawb radicals tau tsim, yog li pib ua polymerization, hla kev sib txuas thiab Cov tshuaj tiv thaiv kab mob hloov cov kua los ua kua hauv ob peb feeb.
UVB (275 ～ 320nm): Hom UV LED teeb hlaws no tsis tshua muaj, thiab yeej tsis muaj daim ntawv thov. Lawv muaj nyob rau hauv daim ntawv ntawm UV raj, uas yog tus nqi qis thiab tau siv rau kev cog ntoo. Tus nqi siab tshaj yog kwv yees li 295nm. Ultraviolet noj qab haus huv teeb thiab cog kev loj hlob teeb. Dab tsi tso tawm yog ua los ntawm cov iav tshwj xeeb pob tshab (tsis xa lub teeb qis dua 254nm) thiab phosphor nrog qhov siab tshaj ib puag ncig 300nm.
UVC (200 ～ 275nm): Tus nqi siab tshaj UV ntawm hom UV LED teeb hlaws no feem ntau yog 275nm, qhov txiaj ntsig zoo tshaj plaws yuav tsum yog 254nm, thiab UV teeb yog txhua 254nm, tseem hu ua luv-yoj kom tsis muaj menyuam ultraviolet rays feem ntau siv hauv kev lag luam kom tsis muaj menyuam thiab tua kab mob, thiab lub teeb tua kab mob ultraviolet Nws tso tawm UVC luv-nthwv dej ultraviolet rays, uas tau siv dav hauv tsev kho mob, tshuab cua txias, cov khoom siv tua kab mob, khoom siv dej, dej haus, cov dej phwj tuaj kho mob, pas dej da, cov khoom noj thiab dej haus ua thiab ntim khoom, cov khoom noj khoom haus, cov chaw tsim tshuaj pleev ib ce, thiab cov khoom lag luam mis nyuj. , Cov dej cawv, cov chaw tsim khoom haus, cov neeg ua mov ci thiab chav txias txias.
Lub hauv paus ntsiab lus ntawm kev siv tshuaj tua kab mob ultraviolet: thaum cov pa phem kis tau los ntawm thaj chaw hluav taws xob ultraviolet, cov duab hluav taws xob ultraviolet yuav nkag mus rau cov cell membrane thiab cov cell ntawm cov kab mob. Cov duab hluav taws xob ultraviolet tau nqus los ntawm cov hauv paus ntawm DNA lossis RNA, thiab actin Cov haujlwm ntawm cov khoom siv tshuaj ntawm lub xovtooj ntawm tes tau ploj, thiab cov kab mob me me tsis tuaj yeem tsim lossis tuag sai sai. Lub tshuab siv tshuaj tua kab mob hauv tsev muaj qhov cuam tshuam rau cov kab mob me me dhau los ntawm nws qhov kev cuam tshuam hluav taws xob, uas yog hais, cov kab mob me me uas tsis tau raug tua thaum dhau los ntawm thaj chaw ultraviolet irradiation thawj zaug yuav raug tua nyob rau hauv lub voj voog tom ntej. Ultraviolet rays rhuav tshem qhov muaj peev xwm rov tsim tau ntawm cov kab mob, uas yog qhov tseem ceeb heev. Vim tias cov kab mob tuaj yeem ua rau ntau pua lossis ntau lab tus kab mob hauv 24 teev, qhov no tseem txhais tau tias txawm tias lub tshuab lim cua zoo tshaj plaws tsis tuaj yeem tshem tawm cov kab mob tag nrho, yog li ultraviolet kom tsis muaj menyuam yog kho rau lub hauv paus ua rau. Qhov koob tshuaj xav tau rau cov kab mob me me kom raug tua los ntawm ultraviolet lub teeb nyob ntawm qhov siv ntawm lub teeb ci ultraviolet thiab lub sijhawm rau hluav taws xob.
UVD band, nrog lub nthwv dej ntawm 100-200nm, sib xyaw nrog cov pa oxygen los tsim ozone.
Ozone txoj cai kom tsis muaj menyuam: UVD ultraviolet rays nrog lub nthwv dej ntawm 185nm ua rau huab cua tsis zoo, uas tuaj yeem rhuav tshem cov pa oxygen O2 molecules hauv huab cua, thiab tsim O atoms ua ke nrog O2 molecules los tsim ozone O3. Ozone O3 muaj qhov ua kom muaj zog oxidizing, uas tuaj yeem rhuav tshem cov phab ntsa ntawm cov kab mob decomposing, thiab nkag mus rau hauv lub cell kom oxidize thiab decompose txhawm rau rhuav tshem cov polymerization ntawm cov piam thaj oxidase, ribonucleic acid (RNA), deoxyribonucleic acid (DNA), protein, lipids thiab polysaccharides. Nws rhuav tshem cov txheej txheem metabolism thiab tsim cov txheej txheem ntawm cov kab mob thiab tua lawv, thiab ua tiav cov txiaj ntsig ntawm kev ua kom tsis muaj menyuam thiab tshuaj tua kab mob.
UVV (395-445nm) UV tua kev lag luam txuas cov qhab.
