Txawm hais tias UV rays muaj peev xwm txaus ntshai rau cov khoom muaj sia nyob hauv lub neej niaj hnub, xws li tshav kub hnyiab, UV rays yuav ua rau muaj txiaj ntsig zoo hauv ntau thaj chaw.Zoo li cov qauv pom teeb pom kev zoo, kev txhim kho ntawm UV LEDs yuav coj tau yooj yim dua rau ntau daim ntawv thov sib txawv.
Cov kev txhim kho thev naus laus zis tshiab tshaj plaws yog nthuav tawm qhov chaw ntawm UV LED kev lag luam mus rau qhov siab tshiab ntawm cov khoom lag luam thiab kev ua tau zoo.Cov kws tsim qauv tsim tau pom tias cov thev naus laus zis tshiab ntawm UV LEDs tuaj yeem tau txais txiaj ntsig loj, lub zog thiab qhov chaw txuag piv rau lwm cov thev naus laus zis.Lwm tiam UV LED tshuab muaj tsib qhov zoo, uas yog vim li cas kev lag luam rau cov cuab yeej no yuav tsum loj hlob los ntawm 31% nyob rau 5 xyoo tom ntej.
Kev siv dav dav
Lub spectrum ntawm ultraviolet lub teeb muaj tag nrho cov wavelengths los ntawm 100nm mus rau 400nm nyob rau hauv ntev thiab yog feem ntau subdivided rau hauv peb pawg: UV-A (315-400 nanometers, kuj hu ua ntev-yoj ultraviolet), UV-B (280-315 nanometers, thiab. hu ua nruab nrab nthwv dej) Ultraviolet), UV-C (100-280 nanometers, tseem hu ua luv-yoj ultraviolet).
Kev siv cov cuab yeej kho hniav thiab kev txheeb xyuas daim ntawv thov yog cov ntawv thov thaum ntxov ntawm UV LEDs, tab sis kev ua tau zoo, cov nqi thiab cov txiaj ntsig zoo, nrog rau cov khoom lag luam nce ntxiv, tau nce kev siv UV LEDs sai.Kev siv tam sim no ntawm UV LEDs muaj xws li: optical sensors thiab instruments (230-400nm), UV authentication, barcodes (230-280nm), sterilization ntawm dej nto (240-280nm), kev txheeb xyuas thiab kuaj xyuas lub cev thiab tshuaj xyuas (250-405nm), Kev soj ntsuam cov protein thiab tshuaj nrhiav pom (270-300nm), kho mob lub teeb kho mob (300-320nm), polymer thiab number case printing (300-365nm), cuav (375-395nm), deg sterilization / cosmetic sterilization (390-410nm).
Kev cuam tshuam ib puag ncig - kev siv hluav taws xob qis dua, pov tseg tsawg dua thiab tsis muaj cov khoom phom sij
Piv nrog rau lwm yam thev naus laus zis, UV LEDs muaj cov txiaj ntsig zoo ib puag ncig.Piv rau fluorescent (CCFL) teeb, UV LEDs muaj 70% qis zog noj.Tsis tas li ntawd, UV LED yog ROHS tau ntawv pov thawj thiab tsis muaj mercury, ib qho teeb meem uas feem ntau pom hauv CCFL thev naus laus zis.
UV LEDs yog qhov me me thiab ruaj khov dua li CCFLs.Vim tias UV LEDs yog kev co- thiab kev poob siab-resistant, tawg yog tsawg, txo cov khib nyiab thiab kev siv nyiaj.
Ince lub neej ntev
Xyoo kaum xyoo dhau los, UV LEDs tau sib tw hauv lub neej.Txawm hais tias nws cov txiaj ntsig ntau, kev siv UV LED tau poob qis vim tias UV beam nyiam ua rau cov LED epoxy resin, txo lub neej ntawm UV LED kom tsawg dua 5,000 teev.
Cov tiam tom ntej ntawm UV LED thev naus laus zis nta "hardened" lossis "UV-resistant" epoxy encapsulation, uas, thaum muab lub neej ntawm 10,000 teev, tseem nyob deb ntawm qhov txaus rau feem ntau cov ntawv thov.
Ob peb lub hlis dhau los, cov thev naus laus zis tshiab tau daws qhov kev sib tw engineering no.Piv txwv li, TO-46 rugged pob nrog iav lo ntsiab muag tau siv los hloov lub lens epoxy, uas txuas nws lub neej kev pab cuam tsawg kawg kaum zaug mus rau 50,000 teev.Nrog rau qhov kev sib tw loj hauv engineering thiab cov teeb meem cuam tshuam txog kev ruaj ntseg ntawm lub wavelength daws, UV LED thev naus laus zis tau dhau los ua qhov kev xaiv zoo rau ntau daim ntawv thov.
Pkev ua haujlwm
UV LEDs kuj muaj qhov ua tau zoo ntawm kev ua tau zoo dua lwm cov thev naus laus zis.UV LEDs muab lub kaum sab xis me me thiab ib lub teeb sib luag.Vim tias qhov ua haujlwm tsis zoo ntawm UV LEDs, feem ntau tus tsim engineers tab tom nrhiav rau lub kaum sab xis uas ua kom lub zog tso zis ntau tshaj plaws nyob rau hauv ib cheeb tsam.Nrog rau cov teeb pom kev zoo UV zoo tib yam, cov kws ua haujlwm yuav tsum tso siab rau kev siv lub teeb txaus los teeb pom kev thaj chaw kom zoo ib yam thiab compactness.Rau UV LEDs, lub lens ua haujlwm tso cai rau feem ntau ntawm cov zis hluav taws xob ntawm UV LED kom muaj zog nyob qhov twg nws xav tau, tso cai rau lub kaum ntse ntse emission.
Yuav kom ua tau raws li qhov kev ua tau zoo no, lwm yam kev siv thev naus laus zis yuav xav tau kev siv lwm cov lo ntsiab muag, ntxiv cov nqi ntxiv thiab qhov chaw yuav tsum tau ua.Vim tias UV LEDs tsis xav tau cov lo ntsiab muag ntxiv kom ua tiav cov kab teeb nruj thiab cov qauv kab teeb pom kev zoo, kev siv hluav taws xob qis dua thiab ua kom muaj zog ntxiv, UV LEDs raug nqi ib nrab ntawm kev siv piv rau CCFL technology.
Cov kev xaiv zoo tshaj plaws tsim kom muaj UV LED daws rau ib daim ntawv thov tshwj xeeb lossis siv cov txheej txheem thev naus laus zis, qhov qub feem ntau ua tau zoo dua ntawm cov nqi thiab kev ua haujlwm.UV LEDs yog siv nyob rau hauv arrays nyob rau hauv ntau rooj plaub, thiab sib xws ntawm beam qauv thiab siv nyob rau hauv lub array yog ib qho tseem ceeb heev.Yog tias ib tus neeg muag khoom muab tag nrho cov kev sib xyaw ua ke uas xav tau rau ib daim ntawv thov tshwj xeeb, tag nrho cov nqi ntawm cov ntaub ntawv raug txo, tus naj npawb ntawm cov neeg xa khoom raug txo, thiab cov array tuaj yeem raug tshuaj xyuas ua ntej xa mus rau tus kws tsim qauv.Nyob rau hauv txoj kev no, kev hloov pauv tsawg dua tuaj yeem txuag cov nqi engineering thiab kev yuav khoom thiab muab cov kev daws teeb meem zoo raws li qhov yuav tsum tau ua tiav.
Nco ntsoov nrhiav tus neeg muag khoom uas tuaj yeem muab cov kev daws teeb meem zoo tshaj plaws thiab tuaj yeem tsim cov kev daws teeb meem tshwj xeeb rau koj daim ntawv thov xav tau.Piv txwv li, ib tus neeg muag khoom nrog kaum xyoo ntawm kev paub hauv PCB tsim, kev cai optics, ray tracing thiab molding yuav muaj peev xwm muab ntau yam kev xaiv rau tus nqi-zoo tshaj plaws thiab cov kev daws teeb meem tshwj xeeb.
Hauv kev xaus, qhov kev txhim kho thev naus laus zis tshiab tshaj plaws hauv UV LEDs tau daws qhov teeb meem ntawm kev ruaj khov thiab ua rau lawv lub neej ntev mus txog 50,000 teev.Vim muaj ntau yam zoo ntawm UV LEDs xws li kev txhim kho durability, tsis muaj cov khoom tsim kev puas tsuaj, kev siv hluav taws xob tsawg, me me, kev ua tau zoo dua, kev txuag nqi, kev xaiv tus nqi tsim nyog, thiab lwm yam. siv Ib qho kev xaiv txaus nyiam.
Nyob rau lub hlis thiab xyoo tom ntej, yuav muaj kev txhim kho ntxiv, tshwj xeeb tshaj yog nyob rau hauv qhov kev pab cuam efficiency.Kev siv UV LEDs yuav loj hlob sai dua.
Qhov kev sib tw loj tom ntej rau UV LED thev naus laus zis yog kev ua haujlwm zoo.Rau ntau daim ntawv thov siv wavelengths hauv qab 365nm, xws li kev kho mob phototherapy, dej tua kab mob thiab kev kho mob polymer, lub zog tso zis ntawm UV LEDs tsuas yog 5% -8% ntawm lub zog nkag.Thaum lub wavelength yog 385nm thiab siab dua, qhov ua tau zoo ntawm UV LED nce, tab sis kuj tsuas yog 15% ntawm lub zog nkag.Raws li cov thev naus laus zis tshiab txuas ntxiv mus daws teeb meem kev ua tau zoo, ntau daim ntawv thov yuav pib siv UV LED thev naus laus zis.
Post lub sij hawm: Feb-21-2022