Lub teeb LED yog dab tsi? - Tsim, ua haujlwm, txiaj ntsig, thiab siv
LED Teeb
LED (Light Emitting Diode) teeb yog optoelectronic li uas tawm lub teeb raws li txoj cai electroluminescence.
Lub emission ntawm lub teeb raws li ib tug tshwm sim ntawm ib tug hluav taws xob teb kev sib cuam tshuam nrog ib tug haum tshuaj yog hu ua electroluminescence. Ib qho kev ncaj ncees rau pem hauv ntej ntawm gallium-arsenide hlws ris tau pom tias yog ib qho hluav taws xob muaj txiaj ntsig zoo hauv xyoo 1962.
Thaum electroluminescent pn junctions yog biased rau pem hauv ntej, qee lub zog poob tau hloov mus rau hauv lub teeb, uas yog vim li cas cov khoom siv no tseem hu ua semi-conductor teeb.
Tsim lub teeb LED
Cov nram qab no semiconductor Cheebtsam yog siv los ua LED teeb:
(Green/liab) Gallium Phosphide
Yellow / liab Gallium Arsenide Phosphide
Nitride ntawm Gallium (dawb)
Ib txheej ntawm P-hom semiconductor khoom yog nyob rau saum N-hom semiconductor txheej los tsim lub teeb LED. P-hom txheej yog them los ntawm cov yeeb yaj kiab hlau, uas ua haujlwm raws li cov cuab yeej sib txuas anode. Ntawm N-hom txheej, ib zaj duab xis kub kuj tsim los muab cathode txuas. Cov cuab yeej hauv qab saum npoo qhia txog lub teeb ua tsaug rau cov yeeb yaj kiab kub thiab. LED teeb qhov ua tau zoo yog txhawb nqa los ntawm qhov no. Lub hauv paus tsim ntawm LED teeb yog piav qhia hauv daim duab saum toj no.
Kev siv LED teeb
Feem ntau tus nqi thauj khoom pib drifting, nrog cov hluav taws xob txav mus rau qhov chaw zoo ntawm qhov chaw thiab qhov mus rau qhov tsis zoo, thaum DC fais fab mov siv rau lub teeb LED nyob rau hauv pem hauv ntej kev tsis ncaj ncees. Lub recombination ntawm electrons thiab qhov ntawm PN hlws ris tso tawm lub zog nyob rau hauv daim ntawv ntawm tshav kub los yog lub teeb nyob ntawm seb tus nqi cab kuj koom nrog.
Lub recombination ntawm electrons thiab qhov ntawm PN hlws ris ua rau cov khoom siv semiconductor xws li gallium phosphide (GaP), gallium arsenide phosphide (GaAsP), gallium nitride (GaN), thiab lwm yam los tsim lub teeb. Los ntawm emitting lub teeb photons, cov electrons nyob rau hauv cov ntaub ntawv semiconductor poob zog. Lub teeb tawm ntawm PN kev sib tshuam yuav raug xa tawm sab nraud yog tias cov khoom siv semiconductor pob tshab. Lub teeb LED tsim teeb pom kev zoo li no.
Cov txiaj ntsig ntawm LED teeb pom kev zoo
Cov no yog cov txiaj ntsig ntawm kev siv cov teeb ci LED:
Cov nuj nqis khiav lag luam tsawg heev.
Lawv me me nyob rau hauv stature.
Lub teeb tuaj yeem tswj tau yooj yim nrog LED qhov muag teev.
LED qhov muag teev muaj xws li cov chaw taws teeb hloov pauv thiab tswj muaj peev xwm.
LED qhov muag teev muaj lub neej ntev, mus txog 100000 teev.
LED teeb siv hluav taws xob me me thiab muaj zog txuag hluav taws xob.
Cov qij no muaj zog mechanically.
LED teeb pom kev zoo muab cov xim zoo nkauj.
Raws li tsis muaj cov khoom siv phom sij hauv cov teeb no, lawv muaj txiaj ntsig zoo rau ib puag ncig.
Qhov tsis zoo ntawm LED teeb
Cov hauv qab no yog qee qhov tsis zoo ntawm kev siv LED teeb:
LED qhov muag teev muaj tus nqi pib siab heev.
Raws li cov khoom siv semiconductor, LED teeb. Yog li ntawd lawv yog nyob ntawm qhov kub thiab txias.
Txij li cov teeb ci LED xav tau DC lub zog hluav taws xob, lub teeb hluav taws xob kuj xav tau chav kho kom raug.
Ib lub teeb ci LED lub teeb siab siv lub teeb muaj qhov cuam tshuam rau cov kab.
LED teeb pom kev zoo siv
Cov ntawv thov hauv qab no siv cov teeb ci LED:
rau kev teeb pom kev hauv tsev thiab kev lag luam.
siv ua teeb liab teeb.
ob-xim ntsuas yog siv.
Hauv kev tswj vaj huam sib luag, LED qhov muag teev kuj tau ua haujlwm raws li qhov qhia tsis ua haujlwm.
ntawm daim ntawv ceeb toom.
siv los teeb kho kom zoo nkauj.
Hauv xov tooj ntawm tes thiab dab teg saib cov ntxaij vab tshaus.
siv nyob rau hauv autos li headlamps.
Tsis tas li ntawd, ntau yam cuab yeej hauv ntau qhov chaw ntiav cov qij LED.
Yog xav paub ntxiv, thov xyuam xim rauBENWEI's official website
