Kev taw qhia ntawm LED (Lub Sij Hawm emitting Diodes) lub teeb tau hloov kho txoj hauv kev uas nws rov kho lub teeb kom dhau los ua lub zog ntau dua thiab txuag hluav taws xob. Nws yog pov thawj teeb pom kev zoo kev daws teeb meem uas muaj ntau hom kev siv. Los ntawm kev lag luam teeb pom kev lag luam tsim hluav taws xob los tsim ua cov koos pis tawj. Cov thev naus laus zis technology kuj tau pom nws txoj hauv kev rau cov lus smartphone, muab cov kev sib piv zoo dua thiab muaj cov duab zoo dua. Cov koob thaij duab tshiab hauv lub TV thiab lub koos pij tawj tseem yuav suav nrog LED rau cov kev daws teeb meem siab dua uas txhawb nqa cov nta zoo li HDR.
Thaum nws los txog rau teeb pom kev zoo LED tsis dissipate li ntau lub zog, yog li vim li cas lawv muaj zog ntau dua. Lub zog siv hluav taws xob tsawg dua thaum tshav kub kub thaum ua kom pom lub teeb piv rau cov qhov muag tsis pom. Lub qij uas tsis tseem ceeb ua rau pom tseeb txog 10% lub teeb thaum tus so yog lub caij sov. Qhov no ua rau LED zoo tagnrho rau kev coj mus muag thiab kev lag luam teeb pom kev zoo siv. Qhov no tseem ua rau LED ntau ib puag ncig zoo los ntawm kev txo emissions los ntawm kev siv zog.
Hauv qab no yog cov kev zoo tseem ceeb LED teeb muaj dua lwm lub teeb pom kev zoo.
Zog Zog - Qhov laj thawj tseem ceeb yog qhov ua tau zoo. LED siv hluav taws xob tsawg dua uas tuaj yeem txuag tsis tau ntawm kev siv hluav taws xob ntau, tab sis kuj txo nqi ntawm lub teeb pom kev zoo. Qhov no yog vim nws qhov kev ua tau zoo luminous uas yog tus nqi ntawm lub teeb tawm hauv ib chav ntawm lub zog siv los ntawm lub teeb ntaws ntsuas hauv Watts (W). LED nrog ENERGY STAR kev ntsuas siv ntawm 75% tsawg zog thiab kav ntev dua 25 zaug ntev dua li cov teeb taws me. Qhov no ua rau muaj kev txuag nyiaj tseem ceeb ntawm cov nqi zog.
Txhim Kho Kev Nyab Xeeb - Txij li thaum LEDs siv hluav taws xob tsawg lawv tuaj yeem ua haujlwm ntau dua rau ntawm cov hluav taws xob muaj hluav taws xob tsawg. Cov no feem ntau muaj kev nyab xeeb dua, tiv thaiv kev pheej hmoo ntawm hluav taws kub los ntawm cov ntawv luv luv lossis kev sib txuas tsis raug. Tshaj nyob rau hauv cov teeb pom kev zoo yuav ua rau lub Circuit Court mus hlawv thiab qee zaus cov hluav taws kub yog tias muaj luv me.
Lifespan Ntev Dua - Hauv nruab nrab ib lub teeb ci LED ntev li 50,000 -100,000 sijhawm ua haujlwm. Ntawd yog 2 txog 4 npaug ntev npaum li ntev tshaj plaws feem ntau fluorescent, hlau halide, thiab txawm tias sodium vapor teeb thiab 40 zaug ntev npaum li ntev raws li qhov nruab nrab incandescent noob. Txij li thaum lawv siv sijhawm ntev dua, nws tseem xav tau kev saib xyuas tsawg.
Ua haujlwm tau zoo hauv huab cua sov - LEDs ua haujlwm zoo nyob hauv huab cua txias lossis kub. Cov LED hluav taws xob tuaj yeem khiav lag luam los ntawm -40 F txog 180 F. LED tseem tsis muaj lub sijhawm qeeb lossis tsim nyog "sov" lub sijhawm ua haujlwm.
Teeb Lub Teeb - Thaum lub teeb feem ntau muaj omni-directional, LED yog qhov ntau. Qhov ntawd txhais tau hais tias LED emit teeb uas ntau npaum li cas mloog thiab zoo tagnrho rau kev coj teeb pom kev zoo. Piv txwv ntawm qhov no suav nrog dej nyab, phiaj xwm dej thiab teeb moos. Cov dej nyab tau ntau dua cov kab ntau ntawm lub teeb, mus txog 160 degrees. Qhov no kis tau thoob ib cheeb tsam loj dua nrog muaj qhov pom kev zoo dua li lwm qhov chaw pom. Cov tsom teeb hluav taws xob LED kuj tau siv rau kev coj ua teeb pom kev nrog lub nqaim nqaim ntawm lub teeb. Cov teeb taws qis dua, uas taws teeb pom kev nqes rau sab hauv qab ntawm ib tug ncej lossis qab nthab, zoo li muaj qhov dav dua lub kaum sab xis kom npog qhov chaw loj dua cov tsom teeb.
Ntau Luminance - LED muab kev pom ntawm ntau luminance vim yog cov cuab yeej ntawm nqaj kis thiab teeb pom kev zoo. Qhov no yog ntsuas ntawm lub kaum sab xis nyob rau hauv uas lub teeb coj ncaj qha rau ntawm ib qho khoom. Qhov dav dua lub kaum ntse ntse, qhov zoo dua qhov muaj teeb pom kev zoo. Ib tug 120 degree nqaj kaum sab xis li lub teeb pom kev loj dua thaj tsam dua li ntawm 45 degree nqaj kaum sab xis.
High Color Rendering Index (CRI) - LED muaj qhov CRI siab uas txhais tau tias lawv tuaj yeem qhia cov xim raug rau cov khoom tawg. Lub teeb ci LED qhia qhov tseeb xim ntawm cov khoom thaum piv rau lub teeb ntuj. Qhov no yog qhov ntsuas kom muaj nuj nqis uas yog ntsuas raws tus nqi. LED muaj CRI ntawm 80 thiab siab dua. Tus nqi ntau dua qhov zoo dua. Feem ntau cov LED uas tsim lub teeb dawb yog ze rau nruab hnub nrig ntawm qhov siv nplai.
Kev tiv thaiv ib puag ncig - LEDs tseem muaj cov pa roj carbon monoxide thaum lub sijhawm ua khoom siv. Txawm li cas los xij lawv tsis muaj cov teeb meem ib puag ncig uas ib txwm muaj nrog lub teeb pom kev zoo ib yam li fluorescent lossis mercury vapor teeb. Cov mercury txhawm rau yuav tsum tau tuav tshwj xeeb thaum lub qhov muag teeb txog nws lub neej ntev. Qhov no suav hais tias yog khib nyiab ntau dua li tuaj yeem tsim kev puas tsuaj rau tib neeg kev noj qab haus huv thiab ib puag ncig. Lwm qhov cim pom tseeb ntawm nws qhov kev tiv thaiv ib puag ncig yog nws noj lub zog tsawg dua, yog li txo cov pa roj carbon emissions los ntawm cov chaw tsim hluav taws xob (uas tseem muaj peev xwm sib cav tau nyob ntawm seb cov khoom siv hluav taws xob yog fossil fuels lossis tauj dua tshiab).
