Nyob rau hauv 2006, CREE tshaj tawm lub community launch txog ib tug tshiab txias dawb LED, "XP.G”, uas teeb tsa cov ntaub ntawv tshiab hauv kev ua haujlwm luminous thiab ci ntsa iab.Thaum tsav tsheb tam sim no yog 350 mA, nws cov luminous flux mus txog 139 lm, thiab cov luminous efficiency yog 1 txog lm / W.Lub brightness thiab luminous efficiency yog feem 37% thiab 53% siab dua Cree's brighter XR.ELED, uas yog hu ua "kev lag luam lub ci ntsa iab thiab ua haujlwm siab dua teeb pom kev zoo LED".
Xyoo 2007, Nichia tso tawm ib hom tshiab ntawm LED.Cov khoom lag luam sim muaj lub luminous flux txog li 145 m nyob rau hauv cov xwm txheej ntawm lub zog tam sim no ntawm 350 mA, luminous efficiency txog li 134 lm / w, nti loj ntawm 1 m㎡, thiab xim kub ntawm 4 988K (nyob rau hauv rooj plaub ntawm Ir = 20 mA), luminous efficiency yog siab li 1 69 lm / W).
Xyoo 2007, lub tuam txhab American CREE tau loj hlob ob npaug ntawm kev ua haujlwm ntawm SIC substrate, thiab cov khoom tsim tawm kuj zoo heev.Lub SiC substrate tuaj yeem tsim cov hlau electrode ntawm Gabl-raws li LED nyob rau hauv qab ntawm substrate, thiab cov tam sim no tuaj yeem ntws vertically los ntawm qhov qis-resistance conductive substrate, uas kuj nteg lub hauv paus rau kev loj hlob ntawm lwm yam khoom siv optoelectronic.
Nyob rau hauv tib lub xyoo, Nichia tso tawm cov tiam tom ntej ntawm high-power dawb LEDs.Lub teeb flux ntawm 350 mA tam sim no cov tswv yim yog 145lm, thiab luminous efficiency yog 134lm / W.Yog vim li cas rau kev ua haujlwm siab ntawm LED dawb yog kom paub txog kev ua haujlwm siab ntawm xiav LED nti siv.Thaum lub teeb xiav LED yog tsav ntawm 350 mA, lub zog kho qhov muag yog 651mW, lub wavelength yog 444nm, sab nraud quantum efficiency yog 66.5%, thiab WPE yog 60.3%.
Nyob rau hauv tib lub xyoo, Nichia muab tso rau hauv zus tau tej cov dawb LEDs nrog ib tug luminous efficiency ntawm 150 lm / W.Qhov ua tau zoo ntawm LED no sawv cev rau qib siab dua hauv kev lag luam thaum lub sijhawm ntawd, thiab hom nrog rau pem hauv ntej tam sim no ntawm 20 mA yog 1001m / W.
Thaum ntxov 2009, CREE tshaj tawm tias nws tau ua tiav lub teeb pom kev ntawm 161 lm / W thiab xim kub ntawm 4 689K.Cov txheej txheem xeem rau LED no yog ua nyob rau hauv chav tsev kub thiab ib tug tsav tam sim no ntawm 350 mA.
Thaum kawg ntawm xyoo 2009, CREE tshaj tawm tias nws lub teeb dawb lub zog loj LED luminous efficiency tau ua tiav 1 86 lm / W.CREE cov qhabnias kuaj pom tau tias thaum qhov sib txheeb xim kub yog 4577K, LED tuaj yeem tsim lub teeb tawm ntawm 1971m.Qhov kev ntsuam xyuas yog ua nyob rau hauv ib qho kev xeem ib puag ncig nrog ib tug tsav tam sim no ntawm 350 mA nyob rau hauv chav tsev kub.
Nyob rau hauv thaum ntxov 2009, raws li Nichia qhov kev soj ntsuam tau, lub luminous efficiency ntawm lub LED tau nce mus rau 2491 W kuj ntawm 20 mA.Txawm li cas los xij, nyob rau hauv cov ntaub ntawv ntawm 350 mA tam sim no siv nyob rau hauv kev lag luam LED, lub luminous efficiency tau poob mus rau 1451 withstand W, uas tau aroused lub xim ntawm kev lag luam.
Xyoo 2011, Osram's R&D engineers tau txhim kho tag nrho cov thev naus laus zis ntsig txog kev tsim LED.Hauv kev kuaj sim, cov LEDs tshiab tsim dawb teeb tsa lub tuam txhab lub teeb ci thiab cov ntaub ntawv luminous efficiency.Raws li tus qauv kev ua haujlwm tam sim no ntawm 350 mA, LED qhov ci tuaj yeem ncav cuag 1 55 lm, thiab cov luminous efficiency siab li 1 36 lm / w.Lub teeb dawb LED qauv siv 1 m㎡nti, xim kub ntawm lub teeb emitted yog 5000K, thiab chromaticity coordinate yog 0.349/0.393 (cx/cy).
Nyob rau hauv 2011, CREE tshaj tawm tias nws cov dawb LED teeb efficiency tshaj 231lm / W.Lub tuam txhab siv ib qho kev tivthaiv ib leeg, thiab ntsuas lub teeb dawb LED luminous efficiency ntawm 23llm / W ntawm cov xim kub ntawm 450OK thiab cov qauv ntsuas kub ntawm 350mA.Tam sim no, ntau yam ntsuas ntawm LED tseem nyob hauv kev txhim kho txuas ntxiv.Nrog rau kev nthuav dav ntawm daim ntawv thov teb, qhov yuav tsum tau ua rau LED teeb hlaws tau maj mam sib txawv.
Post lub sij hawm: Dec-24-2021