Humphry Davy, tus kws tshuaj lus Askiv thiab tus tsim khoom, tsim lub teeb hluav taws xob arc, thawjlub teeb, hauv 1802. Tab sis nws tsis yog qhov tseeb. Txawm hais tias nws nquag muab credit rau kev tsim thawj lub teeb pom kev zoo hauv xyoo 1879, Thomas Edison tsis yog thawj zaug. Raws li qee cov ntaub ntawv keeb kwm, ua ntej Edison, muaj nyob ib ncig ntawm 20 incandescent teeb inventors. Peb lub ntsiab lus ua ke hauv Edison qhov kev tsim khoom- lub tshuab nqus tsev siab dua, kev ua haujlwm siab, thiab cov khoom siv hluav taws xob tsim nyog- ua kom muaj hluav taws xob faib tawm los ntawm qhov chaw nruab nrab ntawm kev lag luam, ua tau zoo dua cov neeg sib tw qhov muag teev. Tsim los ntawm 1880, Edison Electric Illuminating Company ntawm New York sib xyaw nrog ob lub lag luam los ua General Electric hauv 1892.
Compact fluorescent teeb (CFLs) piv rau incandescent teeb
Vim tias tsuas yog 5-10% ntawm cov hluav taws xob hluav taws xob muab rau lub teeb yog hloov mus rau hauv lub teeb pom kev zoo thiab qhov seem yog squandered li cua sov, niaj hnub incandescent qhov muag teev tsis muaj zog npaum li cas. Cov cai tswj kom maj mam hloov lub teeb qhov muag teeb nrog lub zog ntau dua -cov txiaj ntsig tau dhau los ntawm tsoomfwv thoob plaws ntiaj teb. Tam sim no compact fluorescent teeb (CFL) qhov muag teev nyob ze li kaum lub sij hawm ntev dua thiab siv li ntawm 75% tsawg zog dua qhov muag teev.
Kauv- zoo li CFLs tau tsim thawj zaug hauv xyoo 1976 los ntawm Edward Hammer ntawm General Electric, tab sis nws lub tswv yim qub raug tso tseg vim tias cov khoom siv ntxiv uas yuav tsum tau ua rau cov teeb no ntau heev yog kim heev. CFLs loj, hnyav, thiab kim ($ 25- $ 35) thaum lawv thawj zaug tuaj ntawm khw hauv nruab nrab xyoo 1980s. Lub teeb-emitting diode (LED) qhov muag teev muaj feem ntau supplanted CFLs, txawm tias kev txhim kho hauv kev tsim thiab lawv cov nqi pheej yig dua.
LED teeb yog dab tsi?
Thaum ua haujlwm ntawm General Electric, Nick Holonyak Jr. tau tsim thawj lub teeb pom kev tsis zoo hauv xyoo 1962. Thaum xub thawj, LEDs tsuas yog siv tau rau hauv cov khoom siv hauv chav kuaj thiab ntsuas teeb vim lawv tsuas tsim teeb liab. Lawv tsim nyog rau ntau yam kev siv teeb pom kev zoo vim tias tam sim no lawv tuaj yeem siv tau rau hauv ultraviolet thiab infrared spectrums. LEDs tuaj yeem yog ib qho diodes, zoo li hauv lub teeb nyem, lossis pawg ntawm diodes, zoo li hauv lub teeb.
Txij li cov LEDs tau zoo tshaj plaws thaum lawv tawm xim xiav - xim dawb, lawv feem ntau stark ntau dua li cov teeb ci. Lub spectrum bar ntawm 'Teeb pom kev pom tseeb' daim ntawv lo ntawm lub ntim qhia pom lub teeb xiav lossis daj, uas yog qhov tseem ceeb rau cov neeg nyiam cov xim sov. Tshaj 49 labLED teeb qhov muag teevtau siv thoob tebchaws los ntawm 2012, txuag tau kwv yees li $ 675 lab hauv kev siv hluav taws xob. Thawj thawj zaug hauv 2017, LEDs tau muag ntau dua li lwm hom teeb, raws li kev lag luam cov duab.
LED teeb ua haujlwm li cas?
Electroluminescence, txheej txheem uas lub zog ntws los ntawm ib qho semiconductor microchip, yog li cas LED qhov muag teev ua kom pom lub teeb. Nyob rau hauv sib piv rau incandescent thiab CFL qhov muag teev, uas tso lub teeb thiab cua sov nyob rau hauv tag nrho cov lus qhia, LEDs nqus lawv cov cua sov rau hauv lub dab dej kub kom tsis txhob muaj teeb meem kev ua tau zoo. LEDs tso lub teeb nyob rau hauv ib qho kev taw qhia, ua rau lawv "directional" lub teeb qhov chaw. Rau ntau yam kev siv, qhov no ua rau nws ua tau rau LEDs siv lub teeb thiab lub zog zoo dua. Piv txwv li, tsis ntev los no LED qhov muag teev nrog cov reflectors thiab diffuser lo ntsiab muag tsim lub teeb uas yog dav dav, uas ua rau lawv zoo meej rau lub rooj teeb.
Dab tsi yog qhov lifespan ntawm LED teeb?
Thaum tsim tau zoo, LED teeb ua haujlwm zoo dua cov teeb pom kev zoo thiab cov fluorescent nyob rau hauv cov nqe lus ntawm kev ua tau zoo, ntau yam, thiab lub neej ntev. Piv nrog rau CFLs lossis teeb incandescent, LED qhov muag teev muaj lub neej sib txawv. Feem ntau, LED qhov muag teev raug txo qis ntawm lumen es tsis yog "kub tawm" lossis ua tsis tiav. Yog li ntawd, lawv cov ci ntsa iab maj mam txo qis thaum lub sijhawm. Lub neej ntev ntawm LED yog txiav txim siab los ntawm kev kwv yees qhov taw tes uas lub teeb tso zis poob los ntawm 30% lossis nce mus txog 70% ntawm nws thawj lumens (L70). Ib lub teeb ci LED tuaj yeem kav ntev txog 50 npaug ntev dua li lub teeb pom kev zoo thiab 2 txog 5 npaug ntev dua li CFL. LED feem ntau kav li ntawm 25,000 thiab 35,000 teev. Nees nkaum rau peb caug xyoo yuav dhau mus yog tias koj tsuas muaj teeb rau peb teev txhua hnub! Raws li kev kwv yees, ib qho LED raug pov tseg rau txhua tsib CFL qhov muag teev lossis peb caug lub teeb incandescent. LEDs tuaj yeem tiv taus lub teeb yam tsis muaj kev tawg vim tias lawv tsis suav nrog cov iav filaments tsis yooj yim.
LED txheeb cais thiab qhov tseeb
Piv nrog rau cov teeb pom kev zoo, cov khoom siv teeb pom kev zoo LED muab teeb pom kev zoo txog li 90% ntau dua.
Nws yuav yog qhov sib npaug ntawm kev tshem 800,000 lub tsheb los ntawm txoj kev lossis loj hlob 400 lab tsob ntoo yog tias txhua lub tsev neeg Asmeskas hloov mus rau qhov muag teeb rau ib lub teeb! Peb lab tsev neeg yuav tau teeb pom kev zoo rau ib xyoos nrog kev txuag hluav taws xob.
Lub teeb tau xav tias yuav haus 20% ntawm lub ntiaj teb lub zog, txawm li cas los xij yog tias txhua lub teeb tau hloov mus rau LEDs, tus nqi ntawd yuav raug txo qis rau 4%.
Nyob rau hauv nws lub neej, lub teeb LED feem ntau txuag tau tshaj $ 100.
Lub teeb 12-watt LED raug nqi kwv yees li 11 xees ib hlis ntawm qhov nruab nrab, thaum lub teeb 75-watt incandescent raug nqi 68 xees ib hlis, raws li Avista's Energy Guide.
Wattage ntawm LEDs piv rau incandescent
Lumens, uas ntsuas lub teeb, yog siv los txiav txim qhov ci.LED teeb qhov muag teevmuaj zog ntau dua -ntau npaum li CFL lossis cov khoom siv hluav taws xob vim lawv siv wattage tsawg heev. Thaum koj thawj zaug yuav LED teeb, nws tuaj yeem tsis meej pem vim tias lawv cov wattage txo qis. Ib daim ntawv qhia sib piv muaj txiaj ntsig los siv thaum yuav khoom hauv qab no.
LED 6-7 W: 40W LED incandescent 7-10W: 60W LED incandescent W 12-13: 75W LED incandescent 14-20W: 100W Hlawv
Kuv tuaj yeem yuav LED qhov muag teev nyob qhov twg?
Txhua lub khw kho vajtse lossis lub khw txhim kho hauv tsev, nrog rau ntau tus neeg muag khoom hauv internet, nqa LEDs nyob rau hauv ntau yam ntawm cov nqi. Thaum muas lub teeb, nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account lub hom phiaj xim kub, illumination theem, wattage ntawm lub teeb kom haum rau koj fixture, thiab seb cov qij yuav siv nyob rau hauv tsev los yog sab nraum zoov.
Siv LEDs kom txuag tau lub zog yog yooj yim npaum li hloov koj lub teeb; koj yuav txuag nyiaj thiab txo koj cov pa roj carbon hneev taw, uas muaj txiaj ntsig zoo rau ib puag ncig thiab koj.
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