Hauv kev lag luam ntawm LED ntim, COB stands rau Chip on Board, ib qho kev sib xyaw ntawm lub teeb qhov chaw siv tshuab uas affixes LED chips ncaj qha mus rau lub substrate.LED teeb qhov chaw siv COB thev naus laus zis, lub nti ncaj qha dissipates tshav kub rau lub substrate, withstanding siab thermal zog ceev;chip ntom ntom, siab optical zog ceev;ib qho luminous lub cev loj me me, zoo tagnrho rau kev lag luam teeb pom kev zoo nrog cov kev cai nruj ntawm lub teeb qhov loj.Piv nrog rau ib qho chip pob LED cov khoom siv, COB pob ntau lub chips, ntau lub pob qij txha, lub zog siab ceev kuj ua rau muaj kev nce ntxiv hauv qhov nyuaj ntawm cov txheej txheem ntim khoom.Nws tuaj yeem hais tau tias COB lub teeb ci ntawm ib sab yog cov kev lag luam teeb pom kev zoo, ntawm qhov tod tes, kuj yog lub pob zeb diamond ntawm cov khoom ntim LED.
Lub luag haujlwm tseem ceeb ntawm lub teeb pom kev zoo yog teeb pom kev zoo, rau LED ntxiv qhov txwv rau qhov chaw teeb pom kev zoo - txuag hluav taws xob, yog li thawj theem ntawm kev loj hlob ntawm COB lub teeb ci kuj tseem nyob rau hauv kev nrhiav lub teeb pom kev zoo, vim COB lub teeb siv hlau. -raws li Circuit Court board los yog ceramic substrate reflectivity tsis zoo li nyiaj-plated bracket, qis reflectivity superimposed ntawm kev sib nrig sib nqus ntawm lub teeb ntawm ntau daim nti Absorption, COB lub teeb qhov chaw luminous efficiency yog qis dua SMD li ntau tshaj 30%, thiab tom qab ntawd lub Kev taw qhia ntawm daim iav aluminium substrate los daws qhov teeb meem kev cuam tshuam, tab sis kev sib nrig sib nqus ntawm ntau daim chips tseem ua rau COB lub teeb pom kev ua haujlwm qis dua li cov khoom siv sib cais.Nrog lub nti sab nraum lub quantum efficiency thiab phosphor lub teeb conversion efficiency, COB lub teeb qhov chaw luminous efficiency tau mus txog kev lag luam kev lees paub ntawm "qab zib" - 100lm / W, tuaj txog ntawm qhov chaw qab zib tshaj li discrete li sib sau ua ke lub teeb qhov chaw 2-3 xyoo tom qab.
Hauv cov xwm txheej sib txawv, kev hloov xim kub ntawm lub teeb ci tuaj yeem ua rau pom kev zoo dua.Thaum tsis muaj qhov chaw txwv, nws yog ib qho yooj yim kom paub qhov kub thiab txias ntawm cov xim hloov, tsuav yog cov xim kub thiab xim tsis tshua muaj xim sib xyaw thiab sib cais, cov xim kub hloov ntawm COB lub teeb ci kuj yog tib lub tswv yim, cov chips hauv COB lub teeb ci tau muab faib ua ob pawg thiab coated nrog ntau hom sib txawv thiab qhov sib xyaw ntawm cov phosphor sib xyaw, kom ob pawg chips tsim cov xim sib txawv kub dawb lub teeb.Hloov qhov loj me tam sim no ntawm ob pawg ntawm chips, koj tuaj yeem ua rau lub teeb ci emit txawv xim kub ntawm lub teeb dawb.me me ntawm COB lub teeb qhov chaw, tom qab lub teeb tsis tuaj yeem pom ob qhov sib txawv ntawm cov xim kub ntawm lub teeb-emitting point, tab sis ib qho teeb pom kev zoo-emitting nto, uas yog qhov zoo ntawm COB lub teeb ci, tab sis qhov me me, tab sis kuj mus rau lub teeb pom kev zoo. kev tsim cov xim sib xyaw COB lub teeb ci tau ua rau muaj kev ntxhov siab ntau.Tom qab xyoo ntawm kev tshawb fawb, rau cov txheej txheem sib txawv, cov neeg tau tsim thiab txhim kho ntau yam thev naus laus zis xws li luam ntawv, tshuaj tsuag, thiab cov fluorescent chips kom ua tiav qhov chaw ruaj khov thiab ntau txheej txheej ntawm ntau hom phosphors hauv COB lub teeb ci.
Cov hom thiab qhov sib piv ntawm ob hom xim kub fluorescent kua nplaum nyob rau hauv cov xim-tuning COB lub teeb qhov chaw yog optimized kom tiav siab pom tseeb Performance index thiab siab luminous efficiency nyob rau hauv tag nrho cov xim hloov ntau yam.Daim duab 2 qhia txog cov spectral curves ntawm qhov kub thiab qis xim ntawm cov xim hloov COB lub teeb los ntawm LightSense Semiconductor.Lub phosphor ntawm qhov teeb pom kev zoo no tau ua kom zoo dua kom cov xim rendering Performance index tuaj yeem ncav cuag ntau dua 95 ntawm txhua qhov xim kub thaum lub sijhawm hloov xim ntawm 3000-6000K, thiab R9 Performance index, uas yog qhov kev txhawj xeeb loj, yog ntau dua 80.
Kev hloov xim kub nthuav dav daim ntawv thov teb ntawm COB lub teeb ci, tab sis cov xim tau txais hauv daim duab xim gamut tsuas tuaj yeem tshwm sim nyob rau hauv qhov kub thiab qis xim xim xim ntawm cov kab dotted.Hauv kev lag luam teeb pom kev lag luam, kev siv cov xim sib txawv ntawm qhov chaw teeb pom kev zoo, koj tuaj yeem hais txog qhov pom kev ntawm cov xim sib txawv ntawm cov khoom kom tau raws li cov neeg xav tau kev zoo nkauj, los ntawm qhov kev pom no, tsuas yog xim kub hloov lossis tsis txaus, hauv rooj plaub no, nrog lub peev xwm los kho cov xim gamut ntawm COB lub teeb ci tau yug los.
Post lub sij hawm: Jun-03-2019