LM-80 yog tus qauv uas txhais tau tias yuav ua li cas lub lumen tso zis thiab xim hloov ntawm LEDs yuav tsum tau ntsuas lub sijhawm thiab qhov kub ntawm qhov sib txawv.
Lub npe tag nrho ntawm qhov tseeb version ntawm tus qauv no yog "IES LM-80-20 Txoj Kev Pom Zoo: Ntsuas Luminous Flux thiab Xim Kho ntawm LED Pob, Arrays thiab Modules"
POB ZEB RAU LM-80 - Vim li cas peb thiaj xav tau& QHOV TSEEB
LM-80 yog qhov tseem ceeb rau cov tsim teeb pom kev zoo, cov neeg tsim khoom thiab cov chaw tsim khoom. Nws muab cov qauv qauv ntawm kev sim LEDs thiab nthuav tawm cov txiaj ntsig kev sim kom cov ntaub ntawv los ntawm ntau hom thiab qauv tuaj yeem ncaj qha thiab sib piv.
LM-80 muaj kev txhawj xeeb nrog kev ntsuas ob ntawm qhov tseem ceeb tshaj plaws ntawm LED zoo:
Lumen txo qis. Thaum lub sij hawm, lub lumen tso zis (qee zaum hu ua lubluminous flux) ntawm tag nrho cov LEDs maj mam txo. Nyob rau hauv cov nqe lus ntawm layman, lawv tau dimmer. Qhov no yog lumen depreciation. Txawm li cas los xij, tus nqi ntawm lumen depreciation txawv ntawm ib qho ua thiab qauv ntawm LED mus rau lwm qhov thiab nws txawv raws li qhov kub thiab txias. Ntawm qhov kub siab dua lumen depreciation tshwm sim sai dua li qhov kub thiab txias.
Nco ntsoov tias qhov kev xeem LM-80 yuav tsis muab cov ntaub ntawv muaj txiaj ntsig ntsig txog kev tso tawm lumen kiag li lossis lub zog ua haujlwm. Rau cov ntaub ntawv no yuav tsum muaj ib daim ntawv qhia los ntawm LM-79 raws li photometric test.
Xim hloov. Nyob rau tib lub sijhawm, cov xim ntawm lub teeb uas LED emits hloov. Hauv LED thiab teeb pom kev lag luam qhov no yog hu ua chromaticity hloov. Raws li lawv tau siv, lub teeb dawb LEDs yuav txav mus rau qhov liab lossis mus rau xiav kawg ntawm lub spectrum, thiab qhov kev hloov no tshwm sim sai dua ntawm qhov kub siab dua.Nyem qhov no kom paub ntau ntxiv txog xim (chromaticity) hloov.
Nco ntsoov tias LM-80 ua raws li kev ntsuas yuav tsis muab cov ntaub ntawv tseem ceeb ntawm qhov zoo ntawm lub teeb tawm los ntawm LED. Cov ntaub ntawv ntawm qhov zoo ntawm lub teeb (xws li nws cov xim kub, xim rendering Performance index lossis spectral muaj pes tsawg leeg) tuaj yeem pom nyob rau hauv daim ntawv qhia txog kev ntsuas photometric. Kev ntsuas LM-80 tsuas yog txhawj xeeb txog qhov ntsuas qhov ntsuas uas cov xim ntawm lub teeb tawm los ntawm LED hloov lub sijhawm.
Nco ntsoov tias LM-80 tsuas yog muaj kev txhawj xeeb nrog LEDs, LED arrays thiab LED modules raws li ib tus neeg cov khoom, tsis yog nrog LED teeb lossis LED fixtures. Vim li no, LM-80 cov ntaub ntawv feem ntau yog siv los ntawm cov tuam txhab teeb pom kev zoo thaum xaiv cov LEDs siv los ua cov khoom hauv lub teeb haum. Rau cov neeg siv kawg, tus neeg siv tshwj xeeb lossis tus neeg teeb tsa los txiav txim qhov txiaj ntsig zoo ntawm LED teeb lossis LED teeb pom kev zoo thiab LM-79 raws li daim ntawv ntsuam xyuas photometric tau pom zoo.
