Lub teeb pom kev zoo tshaj plaws niaj hnub no, tsis muaj qhov tsis ntseeg, tau dhau los ua cov teeb ci LED. Raws li cov khoom siv niaj hnub siv high-tech, LED teeb lub teeb yog maj mam hloov lub teeb pom kev zoo, nrog rau ntau hom kev txuag hluav taws xob uas kuj tau tshwm sim tsis ntev los no ntawm kev lag luam teeb pom kev zoo.
keeb kwm me ntsis
Emission ntawm lub teeb thaum lub sij hawm dhau ntawm ib qho hluav taws xob tam sim no los ntawm ib qho hluav taws xob-qhov sib txuas ntawm cov khoom siv hluav taws xob semiconductor tau paub thaum ntxov thaum pib ntawm lub xyoo pua 20th. Yog li, Henry Joseph Round, tus neeg tsim khoom los ntawm Tebchaws Askiv, xyoo 1907 tau piav qhia txog cov txiaj ntsig ntawm electroluminescence thaum cov hluav taws xob tam sim no dhau los ntawm ib khub hlau - silicon carbide, nrog rau daj, ntsuab thiab txiv kab ntxwv ci ntawm lub cathode. Cov kev sim zoo sib xws tau ua nyob rau xyoo 1923 los ntawm tus kws tshawb fawb Soviet Oleg Losev (los ntawm txoj kev, txog thaum pib ntawm 70s, Asmeskas cov kws tshawb fawb hu ua LED teeb "Losev Light", tom qab lub npe no tsis nco qab). Tab sis qhov tseem ceeb tshwj xeebtom qab ntawd qhov kev tshawb pom no tsis tau muab, thiab yog li tsis tau tshawb xyuas ntau xyoo lawm.
Nyob rau xyoo 1961, qhov kev tsim ntawm infrared yog patented, thiab xyoo 1962, LED ua haujlwm hauv lub teeb (liab) ntau yam. Tom qab ntawd, qhov invention tau txhim kho tas li. Raws li, nws cov nqi kuj txo. Yog li, hauv xyoo 1968, tus nqi ntawm LED qhov muag teev yog kwv yees li $ 200, thiab yog li ntawd lawv cov tswv yim siv tau tsawg heev.
Hnub no, cov teeb no tau siv yuav luag txhua qhov chaw. Txhawm rau ua qhov no, LEDs tau tsim nrog txhua yam nrov ntawm cov socles: E27, E14, GU5.3, G53, GU10, G13.
Vim li cas lub teeb LED zoo dua li ib txwm?
LED teeb muaj qhov zoo hauv qab no:
- Lub teeb tso zis siab. Cov qauv niaj hnub ntawm cov khoom siv teeb pom kev zoo hauv qhov ntsuas no yog qhov sib piv nrog cov hlau halide thiab sodium gas paug teeb.
- Kev siv hluav taws xob tsawg. Nws yog ntau zaus qis dua qhov chaw teeb pom kev zoo.
- Long service life. Nyob ntawm cov chaw tsim khoom thiab cov cuab yeej tsim khoom, lub teeb ci LED tuaj yeem kav ntev li peb caug mus rau ib puas txhiab teev. Nyob rau tib lub sijhawm, tus naj npawb ntawm kev tawm mus tsis zoo rau lub neej ntawm LED.
- High lub zog thiab kev co kuj. Qhov no yog ua tiav vim qhov tseeb tias nws tsis muaj cov khoom nkag siab rau cov neeg kho tshuab kev nyuaj siab.
- Low inertia. Tsis zoo li lwm lub teeb, LED yuav luag tam sim ntawd pib ci tag nrhoqhov kaj. Tsis tas li ntawd xwb, nws tsis ntshai lub zog surges.
- High environmental friendliness. Tsis zoo li lub teeb txuag hluav taws xob, LEDs tsis muaj mercury thiab lwm yam khoom tsis zoo.
Nws tsis tuaj yeem tsis nco qab qhov tseeb tias txhua xyoo ntau thiab ntau tus neeg tsav tsheb pib siv cov qij LED rau lub tsheb. Muaj cov khoom zoo ib yam li LEDs rau cov teeb pom kev hauv tsev, lawv muaj ntau txoj hauv kev xaiv (h1, h3, h7, h8, h10, thiab lwm yam.) Lawv tau nruab rau hauv lub tsheb taub hau, tsis yog lub teeb pos huab, tab sis kuj yog qhov qis thiab siab beam.
Tej zaum tsuas yog qhov tsis zoo uas cov qij LED muaj yog tus nqi siab. Qhov pheej yig tshaj LEDs (LL) raug nqi txog 500 rubles, thiab tus nqi ntawm qhov kim tshaj plaws (SPOT) tuaj yeem ncav cuag 5 txhiab. Txawm hais tias txhua yam, raws li lawv hais, yog txheeb ze. Lub neej tseem ceeb ntawm LED teeb, sib npaug ntawm cov hluav taws xob siv hluav taws xob, tej zaum yuav muaj txiaj ntsig zoo dua li siv lub teeb pom kev zoo.
