Lub hauv paus ntsiab lus ntawm LED teeb hlaws
Los ntawm cov qauv thiab lub teeb-emitting txoj cai ntawm LED teeb hlaws, kuv yuav piav qhia thiab txheeb xyuas nrog koj. Vim li cas LED teeb hlaws emit teeb?
1. LED teeb hlaws qauv
Qhov tseem ceeb tshaj plaws lub teeb-emitting qauv ntawm LED (Light Emitting Diode) teeb yog lub teeb hlaws qhov loj ntawm mung taum nyob rau hauv lub teeb. Txawm hais tias nws yog me me, nws muaj qee yam hauv nws.
Tom qab nthuav tawm cov teeb ci LED hlaws, koj yuav pom cov nti zoo li cov noob hnav. Cov qauv ntawm cov wafer no nyuaj heev thiab muab faib ua ob peb txheej: txheej saum toj kawg nkaus hu ua P-hom semiconductor txheej, nruab nrab txheej yog lub teeb-emitting txheej, thiab hauv qab txheej yog hu ua N-hom semiconductor txheej.
Yog li, lub teeb ntawm LED tawm li cas?
2. Lub teeb-emitting txoj cai ntawm LED teeb hlaws dai
Los ntawm kev xav ntawm physics: thaum hluav taws xob dhau los ntawm cov siv lead ua, cov electrons nyob rau hauv N-hom semiconductor thiab lub qhov nyob rau hauv lub P-hom semiconductor hnyav sib tsoo thiab recombine nyob rau hauv lub teeb-emitting txheej los tsim photons, uas emit zog nyob rau hauv lub hom ntawm photons (uas yog, lub teeb uas sawv daws pom). ).
LED tseem hu ua lub teeb emitting diode, nws lub cev yog me me thiab tsis muaj zog, nws tsis yooj yim rau siv ncaj qha. Yog li tus tsim tsim tau ntxiv cov ntaub ntawv tiv thaiv rau nws thiab muab ntim rau hauv, yog li tsim ib qho yooj yim-rau-siv LED teeb hlaws.
Tom qab txuas ntau lub teeb ci LED hlaws ua ke, koj tuaj yeem tsim ntau yam ntawm LED teeb. Lub teeb pom kev zoo ntawm LED teeb
3. LED teeb nrog cov xim sib txawv
Ib nrab ntawm cov ntaub ntawv sib txawv yuav tsim cov xim sib txawv ntawm lub teeb, xws li lub teeb liab, lub teeb ntsuab, lub teeb xiav thiab lwm yam. Txawm li cas los xij, txog tam sim no tsis muaj cov khoom siv semiconductor uas tuaj yeem tawm lub teeb dawb.
Qhov dawb LED teeb hlaws peb siv txhua hnub tshwm sim li cas?
4. Qhov tshwm sim ntawm lub teeb dawb LED
Ntawm no peb yuav tsum hais txog tus yeej Nobel nqi zog, Dr. Shuji Nakamura. Nws tsim lub xiav LED, uas kuj tau tsim lub hauv paus ruaj khov rau cov LED dawb. Nws tau txais txiaj ntsig Nobel nqi zog hauv Physics hauv 2014 rau qhov kev pab cuam tseem ceeb no.
Raws li yuav ua li cas lub xiav LED hloov mus rau hauv ib tug dawb LED, qhov loj tshaj yog vim li cas yog muaj ib tug ntxiv txheej ntawm phosphor nyob rau hauv lub nti. Lub hauv paus ntsiab lus ntawm lub teeb-emitting tsis tau hloov ntau: ntawm ob txheej ntawm semiconductors, electrons thiab qhov sib tsoo thiab recombine thiab tsim xiav photons nyob rau hauv lub teeb-emitting txheej.
Ib feem ntawm lub teeb xiav generated yuav ncaj qha tawm los ntawm cov fluorescent txheej; qhov seem seem yuav ntaus cov fluorescent txheej thiab cuam tshuam nrog nws los tsim cov duab daj. Lub teeb dawb tshwm sim thaum xiav photons cuam tshuam nrog daj photons (suav nrog).
Yog tias qhov kev faib ua feem ntawm lub teeb xiav yog me ntsis ntxiv, lub teeb dawb uas muaj xim kub yuav raug tsim; ntawm qhov tsis sib xws, yog tias qhov kev faib ua feem ntawm lub teeb daj yog me ntsis ntxiv, lub teeb dawb nrog qis xim kub yuav raug generated.
Benwei Teeb pom kev zoo yog LED Tube, LED dej nyab teeb, LED Vaj Huam Sib Luag Teeb, LED High Bay, LED chaw tsim tshuaj paus nrog 12 xyoo kev paub. Yog tias koj xav yuav lub teeb zoo LED dej nyab lub teeb lossis muaj kev nkag siab ntau ntxiv ntawm daim ntawv thov ntawm LED dej nyab teeb, thov hu rau peb nug, peb lub vev xaib:
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