Tsob ntoo incandescent thiab fluorescent teeb pom kev zoo hauv tsev, chaw ua haujlwm, thiab thaj chaw pej xeem tau hloov pauv nrog LED (Light Emitting Diode) thev naus laus zis, uas tau hloov pauv tag nrho cov teeb pom kev lag luam hauv kaum xyoo dhau los. Cov ntsiab lus ntawm seb cov teeb ci LED puas tsim nyog rau kev nyeem ntawv tau dhau los ua ntau dua li cov neeg nyeem nrhiav pom qhov teeb pom kev zoo tshaj plaws rau lub sijhawm ntev ntawm kev kawm lossis nyiam cov phau ntawv. Cov lus teb yog complex vim, thaumLED teebmuab ntau yam txiaj ntsig, kuj tseem muaj qhov tshwj xeeb uas yuav tsum tau coj mus rau hauv tus account, nyob ntawm daim ntawv thov. Kab lus no tshawb xyuas seb lub teeb LED puas tsim nyog rau kev nyeem ntawv, saib lawv qhov zoo, qhov tsis zoo, thiab txoj hauv kev zoo tshaj plaws los teeb tsa qhov chaw nyeem ntawv zoo.
LED Teeb pom kev zoo rau kev nyeem ntawv
LED teeb sib txawv ntawm cov cuab yeej teeb pom kev yav dhau los hauv ntau txoj hauv kev uas ua rau lawv zoo tagnrho rau kev nyeem ntawv.
Ua ntej, qhov zoo dua yog qhov muaj peev xwm hloov qhov ci. Feem ntau ntawm cov niaj hnubLED nyeem teeb, txawm tias lawv yog clip-on, teeb hauv pem teb, lossis lub rooj teeb, muaj peev xwm dimming zoo ib yam li cov qij incandescent, uas muaj cov theem teeb pom kev zoo. Qhov no ua rau cov neeg nyeem tuaj yeem kho cov theem ntawm lub teeb kom haum rau lawv cov kev xav tau. Piv txwv li, kev nyeem ntawv me me hauv kev nthuav dav yuav ua tau zoo tshaj plaws nyob rau hauv ib qho chaw kaj lug, thaum yav tsaus ntuj nyeem ntawv yog qhov zoo tshaj plaws nyob rau hauv lub softer glow. Vim nws txoj kev yoog raws, lub teeb yeej tsis pom qhov ci dhau los lossis tsis txaus, uas txo qhov muag pom los ntawm qhov pom kev ci ntsa iab heev lossis tsaus ntuj. Ntau yam xim kub, qhia hauv Kelvin (K), tuaj yeem tsim tau siv cov teeb ci LED. Zoo ib yam li cov teeb pom kev zoo ib yam, lub teeb sov dawb (2700K–3000K) emits yellowish tinge uas tsim kom muaj kev nplij siab, pw- rov qab huab cua uas zoo tagnrho rau kev nyeem phau ntawv ua ntej pw. Nrog lub xim dawb los yog me ntsis bluer, lub teeb txias dawb (3500K-5000K) simulates ntuj nruab hnub thiab zoo meej rau kev nyeem ntawv los yog kawm vim nws nce kev ceeb toom thiab kev xav. Vim nws qhov kev hloov pauv tau, cov neeg nyeem tuaj yeem kho qhov teeb pom kev zoo rau lub sijhawm nruab hnub thiab hom kev nyeem ntawv uas lawv siv, xws li cov ntaub ntawv digital, ntawv tseeb, lossis phau ntawv kawm. Thib peb, LEDs yog qhov kev xaiv zoo vim tias lawv lub neej ntev thiab kev lag luam hluav taws xob. Kev nyeem ntawv nquag yuav tsum tau siv lub teeb ntev ntev, thiab LEDs siv txog li 80% tsawg zog dua qhov muag teev. Qhov no txo qis qhov cuam tshuam rau ib puag ncig ntxiv rau txo qis kev siv hluav taws xob. Ntxiv mus, LEDs siv sijhawm ntev dua li qhov muag teev, nrog rau qhov nruab nrab lub neej ntawm 25,000-50,000 xuab moos as opposed to 1,000-2,000 teev. Lawv yog li kev xaiv pheej yig dua rau cov chaw nyeem ntawv vim tias lawv yuav tsum tau hloov tsawg dua.Qhov txiaj ntsig thib plaub yog coj teeb pom kev zoo. Tsis zoo li cov qij incandescent, uas kis tau lub teeb nyob rau hauv tag nrho cov kev taw qhia, LEDs emit lub teeb nyob rau hauv ib tug kev taw qhia. Los ntawm kev coj cov kab teeb pom kev zoo no mus rau cov ntaub ntawv nyeem, nws muaj peev xwm ua kom pom cov nplooj ntawv yam tsis muaj qhov ci ntsa iab lossis ua rau thaj chaw ib puag ncig. LED- teeb lub teeb ua hauj lwm nrog cov caj npab txav tau los yog goosenecks cia cov nyeem tso lub teeb kom meej qhov chaw uas nws xav tau, txo qis lub teeb pom kev nyob ib puag ncig thaum tuav lub teeb pom kev txaus rau cov ntawv nyeem. Cov tswv yim tsom rau qhov no pab khaws cia cov keeb kwm yav dhau los - nplooj ntawv sib txawv, uas yog qhov tseem ceeb rau kev pom tsis pom kev. Thaum kawg, kev nplij siab thaum txuas ntxiv nyeem ntawv tau txhim kho los ntawm kev tawm cua sov tsawg. Feem ntau ntawm lub zog siv los ntawm cov qhov muag teeb yog nkim thaum tshav kub kub, uas yuav ua rau lub teeb nyeem ntawv tsis xis nyob rau lub sijhawm ntev thiab txawm tias sov rau qhov chaw nyob ib puag ncig. Hauv qhov sib piv, LEDs tswj lawv qhov txias txawm tias tom qab ua haujlwm rau ob peb teev. Qhov no ua rau lawv muaj kev nyab xeeb dua, tshwj xeeb tshaj yog nyob rau hauv cov tsev neeg uas muaj menyuam yaus lossis tsiaj txhu, los ntawm kev tiv thaiv kev tsis xis nyob thiab ua rau muaj kev kub ntxhov.
Tej yam tshwm sim tsis zoo thiab yuav txo tau lawv li cas
LED teebmuaj ntau qhov zoo rau kev nyeem ntawv, tab sis kuj tseem muaj qee qhov tsis zoo. Kev siv LED kom zoo yuav tsum muaj kev nkag siab txog cov teeb meem no thiab yuav daws lawv li cas.Blue light emission is one of the most tham- txog cov teeb meem. LEDs tawm lub teeb xiav, uas tom qab coated nrog phosphor hloov nws cov xim. Vim hais tias lub teeb xiav muaj luv luv wavelength thiab siab siv ntau dhau, tshwj xeeb tshaj yog los ntawm cov ntxaij vab tshaus thiab lub teeb ci, tuaj yeem ua rau lub qhov muag qhuav, qhov muag tsis pom kev, thiab txawm cuam tshuam nrog kev pw tsaug zog los ntawm kev txo cov cim melatonin. Qhov no yuav yog ib qho teeb meem rau cov neeg uas nyiam nyeem ntawv lig hmo ntuj.Qhov teeb meem no tswj tau, txawm li cas los xij. Cov chaw sov dawb (2700K–3000K) tam sim no muaj nyob rau ntawm ntau lub teeb nyeem LED; cov kev teeb tsa no tsim lub teeb xiav tsawg dua li qhov chaw txias dawb. Txhawm rau txo qis qhov phom sij txaus ntshai thaum khaws cia qhov ci txaus rau kev nyeem ntawv, qee cov qauv zoo txawm tias muaj "xiav lub teeb lim" xaiv. Los ntawm kev xaiv cov kev xaiv no, lub caij nyoog ntawm qhov muag strain thiab ntxhov siab pw tsaug zog tuaj yeem txo qis.Flicker yog lwm yam uas yuav tsum tau coj mus rau hauv tus account. Thaum ntxov LED qhov muag teev tau nquag flicker, uas yog ib qho kev hloov pauv sai thiab tsis tuaj yeem tshawb pom hauv lub teeb pom kev los ntawm lub zog tsis tu ncua. Flicker tuaj yeem ua rau mob taub hau, mob qhov muag, thiab teeb meem tsom, txhua yam tsis zoo rau kev nyeem ntawv. Txawm li cas los xij, qhov teeb meem no feem ntau tau daws los ntawm kev siv tshuab LED tam sim no. Siab- zoo LED teeb, tshwj xeeb tshaj yog cov cim "flicker{18}}dawb," siv cov neeg tsav tsheb sophisticated los tswj lub zog, lav lub teeb pom kev tas li thiab txhim khu kev qha. Nws yog ib qho tseem ceeb rau kev tshawb nrhiav qhov kev lees paub no thaum yuav khoom LED nyeem teeb.CRI, lossis xim rendering Performance index, kuj tseem ceeb. Ntawm qhov ntsuas ntawm 0 txog 100, CRI ntsuas seb qhov teeb pom kev zoo li cas rov tsim cov xim piv rau lub teeb ntuj. Lub siab CRI yog qhov tseem ceeb rau kev nyeem ntawv, tshwj xeeb tshaj yog cov ntaub ntawv xim xws li cov ntawv kos duab, cov ntawv xov xwm, lossis cov phau ntawv piav qhia. Cov xim uas tshwm sim los ntxuav tawm los yog distorted vim tsis zoo CRI tuaj yeem ua rau cov ntsiab lus tsis txaus siab thiab nkag siab yooj yim dua. Txhawm rau kom paub meej cov xim zoo, ntau lub teeb LED tam sim no muaj CRI ntawm 80 lossis siab dua, nrog rau qee qhov siab -kawg versions ncav cuag 90+.
Txoj hauv kev zoo tshaj plaws los nyeem nrog LED teeb
Ua raws li cov lus qhia nram qab no kom tau txais txiaj ntsig zoo tshaj plawsLED teebrau kev nyeem ntawv: Xaiv cov xim kub uas tsim nyog: Siv lub teeb txias txias (3500K–4500K) rau kev nyeem ntawv (xws li kev kawm) lossis thaum nruab hnub, vim nws txhim kho qhov pom tseeb thiab kev ceeb toom. Siv cov xim dawb (2700K–3000K) rau kev nyeem ntawv hmo ntuj kom txo qhov pom ntawm lub teeb xiav thiab ua kom lub cev npaj rau kev pw tsaug zog.Ua kom qhov tsim nyog qhov ci ci: Qhov chaw ib puag ncig txiav txim siab qhov ci zoo rau kev nyeem ntawv. Thaum 400–600 lumens yuav tsum tau nyob rau hauv ib lub qhov dej -lit chav, 200–300 lumens tej zaum yuav txaus nyob rau hauv ib chav tsaus nti. Xyuas kom lub teeb ci txaus kom tsis txhob squinting thiab nyob deb ntawm cov teeb ci ntsa iab. Cov xwm txheej tuaj yeem hloov kho tau yooj yim nrog cov dimmable LEDs. Teeb lub teeb kom zoo: Txhawm rau tiv thaiv qhov ci ntawm nplooj ntawv, tso lub teeb nyeem ntawv ntawm ib sab ntawm phau ntawv lossis e- nyeem ntawv es tsis yog ncaj nraim saum toj lossis pem hauv ntej ntawm nws. Cov ntawv yuav tsum tau sib npaug ntawm lub teeb kom koj ob txhais tes thiab lub taub hau tsis muaj duab ntxoov ntxoo. Vim hais tias lawv tuaj yeem ua rau lub kaum ntse ntse, kho lub teeb nrog lub caj dab hloov tau zoo rau qhov no.Ua ke nrog lub teeb pom kev zoo: Txawm hais tias xav tau lub teeb nyeem ntawv yog qhov tsim nyog, nws tuaj yeem muab qhov sib txawv qhov muag sib txawv thaum siv ib leeg hauv qhov chaw dimly. Txhawm rau txo qhov muag pom, muab cov LED nyeem lub teeb nrog lub teeb pom kev zoo (xws li phab ntsa sconces lossis lub teeb hauv pem teb) kom ci ntsa iab ntawm qhov chaw nyob ib puag ncig.Ua peev hauv qhov zoo: Cov yam ntxwv zoo li flicker txo, siab CRI, lossis xiav lub teeb lim yuav raug cuam tshuam hauv cov teeb ci LED tsis tshua muaj nqi. Kev nqis peev me ntsis ntxiv rau hauv qhov dej zoo -paub hom tau lees paub kev ua haujlwm zoo dua qub, kev ua neej ntev, thiab kev nplij siab ntawm qhov muag. Nrhiav cov teeb pom kev zoo uas tau lees paub los ntawm cov pab pawg uas ua pov thawj rau lawv cov kev ua tau zoo thiab zoo, xws li Energy Star lossis Lighting Facts program.
Xaus
LED teeb yog lwm txoj hauv kev zoo rau kev nyeem ntawv vim lawv muab qhov sib npaug zoo dua ntawm kev nplij siab, kev ua haujlwm zoo, thiab kev yoog raws li cov kev xaiv teeb pom kev zoo. Lawv yog cov adaptable thiab zoo nkauj txaus nyiam vim lawv adjustable brightness thiab xim kub, raws li zoo raws li kev loj hlob nyob rau hauv flicker thiab xiav lub teeb txo. Cov neeg nyeem yuav muaj kev nyiam thiab koom nrog los ntawm kev xaiv siab - LED teeb zoo nrog cov yam ntxwv zoo li flicker- thev naus laus zis, siab CRI, thiab xiav lub teeb lim, thiab los ntawm kev siv lawv kom raug- nrog rau qhov zoo tshaj plaws qhov chaw thiab qhov ci hloov. Yog li ntawd, LED teeb muab lub teeb pom kev zoo tshaj plaws los txhim kho koj txoj kev nyeem ntawv, txawm tias koj tab tom sifting los ntawm ib phau ntawv xov xwm, kawm rau kev xeem, lossis dhia mus rau hauv ib qho tshiab.
