1. Iiparamitha zangoku / ze-voltage zee-LED ezimhlophe (ezilungileyo kunye nokubuyisela umva)
I-LED emhlophe inophawu oluqhelekileyo lwe-PN junction volt-ampere. Ikhoyo ngoku ichaphazela ngokuthe ngqo ukukhanya kwe-LED emhlophe kunye ne-PN string string parallel connection. Iimpawu zee-LED ezimhlophe ezifanelekileyo kufuneka zihambelane. Kwimo ye-AC, i-reverse kufuneka ithathelwe ingqalelo. Iimpawu zombane. Ke ngoko, kufuneka bavavanyelwe ukuhla kwamandla ombane ngaphambili kunye nangaphambili kwindawo yokusebenza, kunye neeparameters ezinje ngereverse leakage current kunye ne-reverse breakdown voltage.
2. Ukukhanya okukhanyayo kunye ne-radiant flux ye-LED emhlophe
Amandla ombane ombane ewonke akhutshwa yi-LED emhlophe kwiyunithi yexesha abizwa ngokuba yi-radiant flux, engamandla okukhanya (W). Ngomthombo wokukhanya omhlophe we-LED wokukhanyisa, eyona nto ixhalabisayo ngumphumo obonakalayo wokukhanya, oko kukuthi, ubuninzi be-radiant flux ekhutshwa ngumthombo wokukhanya onokubangela ukuba iliso lomntu libone, elibizwa ngokuba yi-luminous flux. Umlinganiselo we-radiant flux kumandla ombane wesixhobo ubonisa ukusebenza kakuhle kwe-radiation ye-LED emhlophe.
3. Ijika lokusabalalisa ukukhanya kwe-LED emhlophe
I-curve yokusabalalisa ukukhanya kokukhanya isetyenziselwa ukubonisa ukuhanjiswa kokukhanya okukhutshwe yi-LED kuzo zonke iinkalo zendawo. Kwizicelo zokukhanyisa, ukusabalalisa ukukhanya kokukhanya kweyona datha isisiseko xa ubala ukufana kokukhanya kwendawo yokusebenza kunye nokuhlelwa kwendawo yee-LED. Kwi-LED ene-spatial beam i-rotationally symmetrical, inokumelwa yi-curve ye-plane ye-axis ye-axis; kwi-LED ene-elliptical beam, i-curve yeeplani ezimbini ezithe nkqo ze-axis ye-beam kunye ne-elliptical axis isetyenziswa. Ukumela umzobo onzima we-asymmetrical, ngokuqhelekileyo umelwe yi-curve ye-plane yamacandelo angaphezu kwama-6 we-axis ye-axis.
I-4, ukuhanjiswa kwamandla okubonakalayo kwe-LED emhlophe
Unikezelo lwamandla okubonwa kwe-LED emhlophe lumele umsebenzi wamandla akhazimlayo njengomsebenzi wobude bobude. Imisela zombini umbala we-luminescence kunye ne-flux yayo ekhanyayo kunye nesalathiso sombala. Ngokubanzi, unikezelo lwamandla okubonwa okuzalanayo lumelwe ngumbhalo S(λ). Xa amandla okubonwa ehla ukuya kwi-50% yexabiso lawo kumacala omabini encochoyi, umahluko phakathi kwamaza amabini obude (Δλ=λ2-λ1) libhendi yokubona.
I-5, ubushushu bombala kunye nesalathiso sombala wokunikezelwa kwe-LED emhlophe
Kumthombo wokukhanya onje nge-LED emhlophe ekhupha ukukhanya okumhlophe kakhulu, ulungelelwaniso lwechromaticity lunokuchaza ngokuchanekileyo umbala obonakalayo womthombo wokukhanya, kodwa ixabiso elithile kunzima ukulinxulumanisa nombono wokukhanya wesiko lombala. Abantu bahlala bebhekisa kumbala o-orenji-obomvu okhanyayo "njengombala ofudumeleyo", kwaye umbala ovuthayo ngakumbi okanye oluhlaza okwesibhakabhaka kuthiwa "umbala obandayo". Ke ngoko, kunengqondo ngakumbi ukusebenzisa ubushushu bombala ukubonisa umbala okhanyayo womthombo wokukhanya.
I-7, ukusebenza kwe-thermal ye-LED emhlophe
Ukuphuculwa kokusebenza okukhanyayo kwe-LED kunye namandla okukhanyisa ngomnye wemiba ephambili kuphuhliso lwangoku lweshishini le-LED. Kwangaxeshanye, ubushushu be-PN ye-junction ye-LED kunye nengxaki yokutshatyalaliswa kobushushu bezindlu zibaluleke kakhulu, kwaye zibonakaliswa ngokubanzi ngeeparitha ezifana nokumelana nokushisa, ubushushu becala, kunye nobushushu bokudibanisa.
I-8, ukhuseleko lwemitha ye-LED emhlophe
Okwangoku, i-International Electrotechnical Commission (IEC) ilinganisa iimveliso ze-LED kunye neemfuno ze-lasemiconductor lasers zokuvavanya ukhuseleko lwemitha kunye nokubonakaliswa. Ngenxa yokuba i-LED ingumqadi omxinwa, isixhobo sokukhanya okuphezulu okukhupha ukukhanya, ngokuqwalasela ukukhanya kwayo kunokuba yingozi kwi-retina yamehlo omntu, umgangatho wamazwe ngamazwe uchaza imida kunye neendlela zovavanyo lwemitha esebenzayo yee-LED ezisetyenziswa kwiimeko ezahlukeneyo. Ukhuseleko lwemitha yokukhanyisa iimveliso ze-LED okwangoku ziphunyezwa njengemfuneko yokhuseleko olunyanzelekileyo kwi-European Union nase-United States.
I-9, ukuthembeka kunye nobomi be-LED emhlophe
Iimetriki ezithembekileyo zisetyenziselwa ukulinganisa amandla e-LEDs ukusebenza ngokufanelekileyo kwiindawo ezahlukeneyo. Ubomi bulinganisa ubomi obuluncedo kwimveliso ye-LED kwaye ngokuqhelekileyo ibonakaliswe ngokobomi obuncedo okanye ukuphela kobomi. Kwizicelo zokukhanyisa, ubomi obusebenzayo lixesha elithathayo ukuba i-LED ibole kwipesenti yexabiso lokuqala (ixabiso elimiselweyo) kumandla alinganisiweyo.
(1) Ubomi obuqhelekileyo: Ixesha elithathiweyo ukuba i-batch ye-LEDs ikhanyise ngexesha elifanayo, xa umlinganiselo wee-LED ezingenakukhanya ufikelela kwi-50% emva kwexesha elithile.
(2) Ubomi bezoqoqosho: Xa uqwalasela umonakalo we-LED kunye nokunciphisa ukukhutshwa kokukhanya, imveliso edibeneyo iyancitshiswa kwixesha elithile, eliyi-70% kwimithombo yokukhanya yangaphandle kunye ne-80% kwimithombo yokukhanya yangaphakathi.