UVLED's Application Field and Protection Issues

Lub wavelength ntawm ultraviolet rays yog nruab nrab ntawm lub teeb pom kev thiab X-ray. Nws lub wavelength ntau yog 10 txog 400nm. Txawm li cas los xij, ntau lub tuam txhab photoelectric ntseeg tias lub wavelength ntawm 430nm kuj yog ultraviolet. Txawm hais tias muaj ntau lub hnub ci ultraviolet tsis pom los ntawm tib neeg, lawv tseem muaj npe rau cov generatory spectrum ntawm qee Violet. UV LED tau ua tiav zoo hauv ob peb xyoos dhau los. Qhov no tsis yog tsuas yog qhov tshwm sim ntawm kev kawm txuj ci ntawm cov khoom siv hluav taws xob-xeev UV, tab sis kuj yog vim qhov nce ntawm kev thov rau UV teeb uas tsim teeb meem ib puag ncig. Tam sim no UV LED khoom ntawm lub khw muag khoom optoelectronics muaj lub wavelength ntawm 265 txog 420nm. Muaj ntau hom kev ntim khoom, xws li perforation, nto installation thiab COB. UV LED generator muaj ntau yam kev siv tshwj xeeb. Txawm li cas los xij, txhua lub tshuab hluav taws xob muaj kev ywj pheej nyob rau hauv lub wavelength thiab tso zis zog. Feem ntau, UV teeb siv ntawm LED tuaj yeem muab faib ua peb thaj chaw. Lawv txhais tau tias yog UV-A (ntev yoj ultraviolet), UV-B (nruab nrab yoj ultraviolet) thiab U V-C (short yoj ultraviolet). UV A ntaus ntawv tau tsim txij li xyoo 1990. Cov LEDs no feem ntau yog siv rau hauv kev sim forged lossis pov thawj (txiaj, daim ntawv tsav tsheb lossis cov ntaub ntawv, thiab lwm yam). Lub zog tso zis yuav tsum muaj ntawm cov ntawv thov no tsawg heev. Qhov tseeb wavelength ntau yog nyob rau hauv 390 txog 420N m. Cov khoom lag luam qis wavelength tsis haum rau kev siv. Vim tias cov LEDs no lub neej ntev thiab kev tsim khoom yooj yim hauv khw tuaj yeem siv los ua ntau yam teeb pom kev zoo thiab cov khoom siv UV pheej yig tshaj. UVA LED tivthaiv teb tau loj hlob zoo hauv ob peb xyoos dhau los. Feem ntau ntawm qhov wavelength no (kwv yees li 350 390nm) yog kev tsim cov khoom lag luam thiab kev lag luam, xws li nplaum, txheej, thiab inks. Vim yog kev txhim kho ntawm kev ua tau zoo, txo tus nqi, thiab kev siv me me, LED teeb muaj qhov zoo dua li cov cuab yeej siv hluav taws xob, xws li mercury lossis fluorescent teeb. Yog li, cov saw hlau txuas txuas ntxiv txhawb kev siv cov thev naus laus zis LED, ua rau cov qauv ntawm cov khoom siv hluav taws xob ntau dua thiab pom tseeb. Txawm hais tias tus nqi ntawm qhov kev sib tw wavelength no tseem ceeb dua li ntawm UV A, kev nce qib sai ntawm kev tsim tshuab thiab cov khoom lag luam tsis tu ncua tau maj mam txo tus nqi. Qhov qis dua UV A thiab siab dua UV B wavelength ntau yam (kwv yees li 300-350nm) yog thaj chaw uas nyuam qhuav dhau los ua lag luam. Cov cuab yeej muaj peev xwm loj no haum rau ntau daim ntawv thov, suav nrog kev kho ultraviolet, biomedical, DNA tsom xam, thiab ntau hom kev paub. Muaj qhov sib tshooj tseem ceeb hauv cov 3 UV spectral ntau yam. Yog li ntawd, thaum xaiv, koj yuav tsum tsis tsuas yog xav txog dab tsi yog qhov zoo tshaj plaws daim ntawv thov, tab sis kuj yuav tsum tau xav txog dab tsi yog qhov zoo tshaj plaws nqi - zoo tshaj. Vim tias qhov qis wavelength feem ntau txhais tau tias cov nqi LED ntau dua. UV B thiab UV C wavelength ntau yam (txog 250-300nm) yog qhov loj hauv theem pib. Txawm li cas los xij, kev txaus siab thiab kev thov rau kev siv cov khoom zoo li no rau huab cua thiab dej purification system muaj zog heev. Tam sim no, tsuas yog ob peb lub tuam txhab muaj peev xwm tsim UV LEDs nyob rau hauv qhov kev sib tw wavelength, thiab txawm tias ob peb lub tuam txhab tuaj yeem tsim cov khoom lag luam nrog lub neej txaus, kev ntseeg siab thiab kev ua haujlwm zoo. Yog li ntawd, tus nqi ntawm UVC / B ntaus ntawv tseem siab heev, thiab nws nyuaj rau siv hauv qee daim ntawv thov. Ib lo lus nug ntau txog UV LED yog: Lawv puas tuaj yeem nqa cov phom sij zais cia? Raws li tau hais los saum no, UV teeb muaj ntau theem. Qhov feem ntau siv UV teeb qhov chaw yog lub teeb dub. Cov khoom no tau siv ntau xyoo lawm. Nws yog siv los tsim cov teeb pom kev zoo lossis fluorescent rau cov ntawv tshaj tawm, nrog rau kev txheeb xyuas cov duab kos duab thiab txiaj. Lub teeb uas tsim los ntawm cov teeb pom kev zoo no feem ntau yog nyob rau hauv UV A spectrum, ze tshaj plaws rau pom lub teeb tsis muaj zog thiab tsis muaj zog. Txawm hais tias qhov raug mob siab tau raug pov thawj tias muaj feem cuam tshuam rau cov qog nqaij hlav ntawm daim tawv nqaij thiab lwm yam teeb meem, xws li kev laus ntawm daim tawv nqaij, UVA spectrum yog qhov nyab xeeb tshaj plaws hauv peb lub teeb UV. UV C thiab UV B feem ntau yog siv los ua kom tsis muaj menyuam thiab tua kab mob. Cov wavelengths ntawm lub teeb no tsis tsuas yog teeb meem rau cov kab mob. Cov teeb ci LED no yuav tsum tau thaiv txhua lub sijhawm, thiab lawv yuav tsum tsis txhob ntsia ncaj qha ntawm qhov muag liab qab, txawm tias nws ci me ntsis. Tshaj tawm nyob rau hauv lub teeb ntawm cov wavelengths no yuav ua rau mob qog noj ntshav ntawm daim tawv nqaij thiab ib ntus lossis tsis pom kev mus tas li lossis poob.