Dab tsi yog qhov teeb meem ntawm LED zaub ua haujlwm nyob rau hauv qhov kub thiab txias?
LED zaub tau dav siv niaj hnub no. Txhawm rau siv cov lus qhia kom ntau dua, cov tuam txhab thov yuav tsum muaj kev nkag siab yooj yim ntawm kev saib xyuas ntawm LED zaub. Txawm hais tias nws yog LED sab hauv tsev lossis sab nraum zoov LED zaub, cov cua sov tsim tawm thaum lub sijhawm ua haujlwm, thiab cov cua sov tsim tawm yuav ua rau qhov kub ntawm LED zaub nce. Txawm li cas los xij, kev khiav hauj lwm hauv qhov kub thiab txias yuav ua rau muaj kev puas tsuaj rau LED zaub.
Nyob rau hauv ib txwm muaj xwm txheej, cov zaub LED sab hauv tsev tsim hluav taws xob tsawg dua vim qhov ci ntsa iab, thiab tuaj yeem ua rau cua sov ib txwm muaj. Txawm li cas los xij, sab nraum zoov LED zaub ua kom muaj cua sov ntau vim lawv qhov ci ci siab thiab yuav tsum tau dissipated los ntawm cua txias los yog axial kiv cua. Txij li thaum LED zaub yog cov khoom siv hluav taws xob, qhov nce ntawm qhov kub thiab txias yuav cuam tshuam rau lub teeb attenuation ntawm LED zaub teeb hlaws, kev ua haujlwm ntawm tus tsav tsheb IC thiab kev pabcuam lub neej ntawm LED zaub.
Kev khiav hauj lwm kub ntawm LED zaub ntau tshaj qhov ntsuas kub ntawm lub nti, uas yuav txo tau cov luminous efficiency ntawm LED zaub, ua kom pom tseeb lub teeb attenuation thiab ua rau kev puas tsuaj; LED zaub feem ntau raug kaw nrog pob tshab epoxy resin, yog tias qhov sib txuas kub siab tshaj qhov kub ntawm cov khoom hloov pauv (feem ntau yog 125 degree), cov khoom ntim yuav tig rubbery thiab thermal expansion coefficient yuav nce siab, uas yuav ua rau LED zaub tig rau. thiab poob. Kub kub dhau heev yuav cuam tshuam lub teeb attenuation ntawm cov zaub LED npo.
Lub neej ntev ntawm LED zaub yog pom los ntawm nws lub teeb lwj, uas yog, qhov ci ntsa iab zuj zus mus txog thaum nws tawm mus. Lub neej ntawm LED zaub feem ntau txhais tau tias yog lub sijhawm uas cov luminous flux decays los ntawm 30 feem pua. Qhov kub thiab txias yog lub ntsiab ntawm lub teeb attenuation ntawm LED qhia thiab shortens lub neej ntawm LED zaub. Lub teeb attenuation ntawm ntau hom ntawm LED zaub yog txawv, feem ntau LED zaub manufacturers yuav muab ib tug txheej txheem teeb attenuation curves. Lub attenuation ntawm luminous flux ntawm LED zaub tshwm sim los ntawm qhov kub thiab txias tsis tuaj yeem rov qab los. Lub luminous flux ntawm LED zaub ua ntej irrecoverable lub teeb lwj yog hu ua "thawj luminous flux" ntawm LED zaub.
Yog li ntawd, qhov nce ntawm qhov kub thiab txias yuav cuam tshuam rau lub neej kev pab cuam ntawm LED zaub.
