LED teeb lub teeb ua haujlwm li cas?

LED teeb qhov muag teev, lub hauv paus tseem ceeb ntawm kev lag luam teeb pom kev lag luam niaj hnub no, tau hloov cov khoom siv hluav taws xob thiab cov roj fluorescent vim lawv lub zog -nrawm, ntev- kav ntev, thiab eco- tus phooj ywg zoo. Lawv tau siv dav hauv kev lag luam, kev lag luam, thiab teeb pom kev hauv tsev. Txawm hais tias muaj coob tus neeg paub txog LED qhov muag teev, lawv tsis paub tias lawv ua haujlwm li cas. Txhawm rau pab koj nkag siab sai sai rau qhov teeb pom kev zoo no, kab lus no yuav muab cov lus piav qhia yooj yim ntawm LED teeb lub teeb ua haujlwm li cas thiab cov ntsiab lus tseem ceeb.

Ib qho tseem ceeb ntawm cov khoom siv tam sim no- lub xeev teeb pom kev zoo, LED (Lub Teeb -Emitting Diode) teeb pom kev zoo yog lub teeb pom kev zoo - siv lub teeb pom kev zoo uas siv lub teeb ci semiconductor-emitting diode los hloov hluav taws xob hluav taws xob mus rau qhov pom kev.

Nws yog ib qho tseem ceeb sib txawv ntawm cov qij fluorescent, uas siv cov pa tawm los ua lub teeb, thiab cov teeb pom kev zoo, uas siv cov cua sov filament. Nws siv cov tshuab semiconductor electroluminescence, uas muaj cov txiaj ntsig zoo rau kev tiv thaiv ib puag ncig, kev pabcuam lub neej, thiab kev siv hluav taws xob.

OperationLED teeb qhov muag teev ua haujlwm feem ntau ntawm "electroluminescence" cov khoom siv semiconductor. Cov lus zais rau LEDs 'kev ua tau zoo yog lawv cov kev hloov pauv hluav taws xob ncaj qha rau hauv lub teeb lub zog, sib piv rau cov teeb pom kev zoo, uas ua ntej hloov hluav taws xob rau hauv lub zog hluav taws xob thiab tom qab ntawd mus rau hauv lub teeb lub zog (nrog rau lub zog pov tseg).

Cov khoom siv semiconductor (feem ntau gallium arsenide, gallium phosphide, thiab lwm yam) uas ua rau LED nti (lub teeb lub hauv paus) yog doped los tsim P-N hlws ris. Lub teb hluav taws xob yuav ua rau cov hluav taws xob hauv N-hom semiconductor txav mus rau P-hom semiconductor thiab lub qhov hauv P-hom semiconductor tsiv mus rau N-hom semiconductor thaum lub zog txuas mus rau P-N junction.

Cov hluav taws xob thiab qhov yuav hloov ntawm lub siab - lub zog hluav taws xob mus rau qis - lub zog hluav taws xob thaum lawv tuaj ua ke hauv P-N kev sib tshuam. Photons, los yog pom lub teeb, raug tso tawm los ntawm qhov kev hloov pauv no lub zog txaus. Lub teeb xim (xws li liab, ntsuab, lossis xiav) yog txiav txim siab los ntawm photons' wavelength, thiab nws qhov ci ci yog txiav txim siab los ntawm qhov siv tam sim no.

LED nti: Cov khoom tseem ceeb rau kev ua tiav cov nyhuv electroluminescence. Lub luminous efficiency, xim rendering Performance index, thiab kev pab cuam lub neej ntawm lub teeb yog tag nrho cov ncaj qha cuam tshuam los ntawm lub nti zoo. Superior LED chips (xws li OSRAM thiab LUMILEDS) muaj kev ruaj khov thiab muaj kev ua haujlwm zoo dua qub.

Ib qho tseem ceeb ntawm LED qhov muag teev, tus neeg tsav tsheb (lub hwj chim mov) hloov pauv lub zog hluav taws xob hloov pauv tam sim no (AC) mus rau hauv qhov tam sim no tsis tu ncua (DC) uas LED nti tuaj yeem siv tau. Nws tuaj yeem hloov kho qhov voltage thiab tam sim no los tiv thaiv lub teeb flickering thiab nti puas, lav lub teeb ruaj khov thiab ntev - kev ua haujlwm ntev. Cov neeg tsav tsheb zoo tshaj plaws muaj qhov hloov pauv hloov pauv loj thiab lub zog loj (PF Ntau dua lossis sib npaug rau 0.95).

Thaum tshav kub kub dab dej: LED nti yuav tsim ib qho me me ntawm cov cua sov thaum ua haujlwm; Yog tias qhov cua sov no tsis tuaj yeem ntws tawm sai sai, lub nti lub luminous efficiency yuav txo qis thiab nws lub neej kev pab yuav luv luv. Lub dab dej kub, uas feem ntau yog tsim los ntawm aluminium alloy nrog lub zog thermal conductivity, tuaj yeem xa cov cua sov uas tsim los ntawm cov nti mus rau lub ntiaj teb sab nraud, lav tias lub teeb ua haujlwm ntawm qhov kub thiab txias.

Lampshade: Nws ua hauj lwm los ua kom lub teeb pom kev zoo tshaj plaws thiab tiv thaiv cov khoom sab hauv. Nws feem ntau yog tsim los ntawm siab- lub teeb- kis iav los yog PC, uas tuaj yeem txo qhov ci ntsa iab, muag lub teeb uas lub nti tawm, thiab tsim lub teeb pom kev zoo dua qub.

Kev siv hluav taws xob siab: LED qhov muag teev tuaj yeem txo qis kev siv hluav taws xob los ntawm 70% mus rau 80% thaum piv rau cov teeb pom kev zoo. Piv txwv li, qhov ci ntawm 10W LED teeb yog siab dua li ntawm 60W incandescent teeb.

Lub neej ua haujlwm ntev: High-cov qij LED zoo muaj lub neej ua haujlwm ntawm 50,000-100,000 teev, uas yog tsib mus rau kaum npaug ntev dua li cov qij taws thiab ob mus rau peb zaug ntev dua li cov teeb fluorescent. Qhov no txo qis kev hloov pauv thiab kho tus nqi.

Cov txiaj ntsig ntxiv muaj xws li pib tam sim (tsis sov- lub sijhawm nce), tsis muaj flicker (tso lub zeem muag), kev tiv thaiv ib puag ncig (tsis muaj txhuas, mercury, lossis lwm yam khoom siv phom sij), thiab hloov tau yooj yim dimming thiab xim kub hloov (hloov mus rau ntau yam teeb pom kev zoo xws li tsev, chaw ua haujlwm, thiab kev lag luam).

Tom qab kawm paub yuav ua li cas LED teeb lub teeb ua haujlwm thiab lawv cov txiaj ntsig tseem ceeb, tsis txhob yig tiv tauj peb yog tias koj xav tau kev pab xaiv, kho kom haum, tau txais nqe lus, lossis nrhiav kev daws teeb meem.

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