Tab sis yuav ua li cas yog tias peb tseem nyob rau lub sijhawm uas lub ntsiab ntawm lub teeb yog hluav taws? Xav txog qhov xwm txheej ntawm txoj kev teeb pom kev tsis ci ntsa iab ntawm qhov tsaus ntuj lossis qhov kev ntxhov siab ntawm qhov tsis muaj lub rooj teeb pom kev zoo kom ua haujlwm zoo thiab ua haujlwm zoo.
Kev lag luam teeb pom kev zoo tau tsim nyob rau hauv tandem nrog kev nce qib ntawm kev siv tshuab. Raws li qhov tshwm sim, peb tuaj yeem siv cov teeb pom kev dag dag hauv qhov ua tau zoo tshaj plaws. Dab tsi yog qhov kev xaiv teeb pom kev ua ntejLED teeb? Lawv hloov li cas rau lub sijhawm?
Lub Incandescent Era: Ib Revolution hauv Nws Lub Sijhawm
Niaj hnub no, lub teeb incandescent tej zaum yuav tsis zoo li ntau. Txawm li cas los xij, nws yog lub suab nrov ntawm lub nroog thaum Thomas Edison nthuav tawm thawj lub teeb pom kev zoo hluav taws xob hauv xyoo 1987! Lub teeb pom kev zoo no tau tam sim no tau siv rau hauv ntau lwm cov thev naus laus zis, ua rau muaj kev xav tsis thoob ntau dua.
Ib tug me me hlau hu ua filament yog rhuab los ntawm ib tug hluav taws xob tam sim no, uas yog li cas incandescent teeb ua hauj lwm.
Feem ntau, tungsten, hlau uas muaj hluav taws xob ntau dua, yog siv los ua cov filament. Tom qab ntawd, nws yog shielded los ntawm oxidation los ntawm ib lub iav qhov muag teev uas tau ntxuav los yog sau nrog ib tug inert roj. Lub filament tau txais cov hluav taws xob tam sim no los ntawm cov xov hlau lossis cov terminals imbedded hauv iav. Vim nws txoj kev ua haujlwm siab, lub filament glows los yog warms li, tso lub teeb.
Hmoov tsis zoo, muaj ntau yam teeb meem nrog lub teeb incandescent. Lawv tsim hluav taws xob ntau dhau, tsis muaj txiaj ntsig, thiab muaj lub neej luv luv. Yog li ntawd, cov tib neeg tau nrhiav kev txhim kho cov thev naus laus zis no, tsim cov kev hloov pauv zoo dua!
Kev nce qib hauv teeb pom kev zoo: Halogen, CFL, thiab Fluorescent Tubes
Tom qab qhov muag teev incandescent, dab tsi tshwm sim tom ntej? Halogens, CFLs, thiab fluorescent qhov muag teev tau siv los teeb lub tsev thiab cov lag luam ua ntej kev taw qhia txog lub zog- LED teeb pom kev zoo. Lawv yog dab tsi?
Halogen: Nws ua haujlwm zoo ib yam li lub teeb ci incandescent los ntawm cua sov lub filament. Tab sis lub teeb halogen muaj roj halogen, uas txuas nws lub neej me ntsis.
CFLs, los yog compact fluorescent teeb: Nws yog ib tug me me, portable fluorescent raj. Piv rau halogens, CFLs siv tsawg zog, txawm hais tias lawv siv sij hawm ntev me ntsis kom sov.
Fluorescent: Ib lub raj - zoo lilub teebuas siv phosphorous txheej thiab tso pa tawm los tsim lub teeb. Tawm ntawm peb, nws yog qhov zoo tshaj plaws.
Halogen qhov muag teev, uas cov cua sov filaments los muab qhov ci ci, yog qhov tseem ceeb tib yam li cov teeb pom kev zoo. Cov raj fluorescent thiab CFLs yog tsim los siv cov txheej txheem cais uas siv cov pa tawm los ua kom cov phosphorous txheej.
Txawm hais tias halogens, CFLs, thiab fluorescent tubes muaj txiaj ntsig zoo dua, kav ntev dua, thiab muab cua sov ntau dua li cov hlab ntsha, lawv tseem muaj qee qhov tsis zoo. Mercury, uas muaj kev phom sij rau tib neeg thiab ib puag ncig, muaj nyob hauv txhua lub teeb fluorescent. Tsis tas li ntawd, halogens sai sai poob lawv qhov ci, uas ua rau cov khib nyiab pov tseg.
Sawv ntawm LED Technology: Ib Lub Sijhawm Tshiab ntawm Lub Teeb
LED thev naus laus zis tau tsim tom qab xyoo kawm, kev ua haujlwm, thiab ntau qhov yuam kev!
Thaum hluav taws xob ntws los ntawm microchip, lub teeb -emitting diodes (LEDs) emit lub teeb. Electrons nyob rau hauv lub semiconductor re-merge nrog electron qhov raws li tam sim no ntws. Photons yog lub zog tso tawm los ntawm kev sib txuas ntawm electrons thiab qhov. Lub zog xav tau rau cov khoom siv hluav taws xob kom dhau qhov sib txawv ntawm cov khoom siv semiconductor txiav txim siab cov xim ntawm lub teeb.
Vim hais tias LED teeb qhov muag teev yog kim dua thiab tsis tshua muaj ci ntsa iab, lub khw pib tsis tau puag lawv. Tab sis nws tau hloov zuj zus mus, nqa nrog nws lub hnub nyoog tshiab teeb pom kev zoo! Niaj hnub no, LED teeb pom kev zoo yog tus nqi tsim nyog thiab tuaj nrog ntau yam xim kub, kev ua haujlwm tshwj xeeb, tsim qauv zoo nkauj, thiab ntau dua. Tsis tas li ntawd, LED teeb pom kev zoo yog lub zog ntau dua - ua haujlwm tau zoo (siv ib puag ncig 80% tsawg zog dua li lub teeb incandescent) thiab kav ntev dua (kwv yees li 50,000 teev).
LED Teeb pom kev zoo niaj hnub no: Vim li cas nws yog qhov kev xaiv zoo tshaj
Vim li cas koj thiaj li yuav tsum xaiv LEDs tshaj incandescent, halogen, CFL, fluorescent, thiab LEDs? Peb yam: kev tsim kho tshiab, txo nqi ntau dua, thiab muaj txiaj ntsig zoo ib puag ncig!
Koj cov pa roj carbon hneev taw tuaj yeem txo qis heev siv LED thev naus laus zis. Lub neej ntev dua ua rau muaj pov tseg tsawg dua, thiab lub zog tsawg dua qhov sib npaug ntawm cov fossil fuels tsawg dua. Tsis tas li ntawd, cov khoom tsis zoo xws li mercury tsis tuaj ntawm LED teeb!
