Yuav txiav txim seb ibLED teebqhov chaw yog qhov peb xav tau, peb feem ntau siv ib qho kev sib koom ua ke los kuaj, thiab tom qab ntawd txheeb xyuas cov ntaub ntawv xeem. Kev sib koom ua ke dav dav tuaj yeem muab rau 6 qhov tseem ceeb hauv qab no: luminous flux, luminous efficiency, voltage, xim tswj, xim kub, thiab xim rendering Performance index (Ra). (Qhov tseeb, muaj ntau yam tsis zoo, xws li peak wavelength, dominant wavelength, maub tam sim no, CRI, thiab lwm yam.) Niaj hnub no, cia peb tham txog qhov tseem ceeb ntawm 6 qhov tsis zoo rau lub teeb ci thiab lawv qhov kev sib tshuam.

Luminous flux: Luminous flux yog hais txog lub zog hluav taws xob uas tuaj yeem hnov ​​​​los ntawm tib neeg lub qhov muag, uas yog, tag nrho cov hluav taws xob hluav taws xob tawm los ntawm LED, hauv lumens (lm). Luminous flux yog ib qho kev ntsuas ncaj qha thiab qhov kev xav paub ntau tshaj plaws ntawm lub cev los txiav txim qhov ci ntawm LED.

Voltage:Qhov voltage yog qhov sib txawv ntawm qhov zoo thiab qhov tsis zoo ntawm tus ncejLED teebhlaws, uas yog ntsuas ncaj qha, hauv volts (V). Nws muaj feem xyuam rau qhov voltage ntawm lub nti siv los ntawm LED.

Luminous efficiency:luminous efficiency, uas yog, qhov piv ntawm tag nrho cov luminous flux tawm los ntawm lub teeb qhov chaw rau tag nrho cov input zog, yog xam tus nqi, nyob rau hauv lm / W. Rau LED, lub zog hluav taws xob input feem ntau yog siv rau teeb pom kev zoo thiab cua sov. Lub siab luminous efficiency qhia tau hais tias muaj ob peb qhov chaw siv rau cov cua sov, uas kuj yog ib qho kev xav ntawm zoo tshav kub dissipation.

Nws yog ib qho yooj yim pom kev sib raug zoo ntawm peb saum toj no. Thaum qhov tam sim no tau txiav txim siab, qhov luminous efficiency ntawm LED tau txiav txim siab los ntawm luminous flux thiab voltage.High luminous fluxthiab tsawg voltage ua rau siab luminous efficiency. Raws li qhov tam sim no loj-teev xiav nti yog coated nrog daj ntsuab fluorescence, vim hais tias ib tug tseem ceeb voltage ntawm lub xiav nti feem ntau yog hais txog 3V, uas yog ib tug kuj ruaj khov tus nqi, kev txhim kho lub teeb efficiency feem ntau yog nyob ntawm kev nce lub luminous flux.

Xim coordinate:cov xim ua haujlwm, uas yog, txoj hauj lwm ntawm cov xim hauv daim duab chromaticity, yog qhov ntsuas qhov ntau. Hauv kev siv CIE1931 tus qauv colorimetric system, cov kev tswj xyuas tau sawv cev los ntawm x thiab y qhov tseem ceeb. Tus nqi x tuaj yeem suav tias yog qib ntawm lub teeb liab nyob rau hauv spectrum, thiab tus nqi y yog xam raws li qib ntawm lub teeb ntsuab.

Xim kub:ib lub cev kom muaj nuj nqis ntsuas qhov xim ntawm lub teeb. Thaum cov hluav taws xob ntawm lub cev dub tiag tiag yog tib yam li cov hluav taws xob ntawm lub teeb ci hauv qhov pom, qhov kub ntawm lub cev dub yog hu ua xim kub ntawm lub teeb ci. Xim kub yog qhov ntsuas kom muaj nuj nqis, tab sis nws tuaj yeem suav los ntawm cov xim xim tib lub sijhawm.

Xim rendering Performance index (Ra):siv los piav qhia txog lub peev xwm rov qab los ntawm lub teeb ci rau cov khoom xim. Nws yog txiav txim los ntawm kev sib piv cov tsos xim ntawm cov khoom raws li tus qauv teeb qhov chaw. Peb cov xim rendering Performance index yog qhov nruab nrab ntawm yim lub teeb xim ntsuas ntsuas los ntawm kev sib koom ua ke rau lub teeb grey liab, tsaus grey daj, saturated daj ntsuab, nruab nrab daj ntsuab, lub teeb xiav, lub teeb xiav, lub teeb xiav xiav, thiab lub teeb liab liab. . Nws tuaj yeem pom tias nws tsis suav nrog saturated liab, uas feem ntau hu ua R9. Vim tias qee qhov teeb pom kev xav tau ntau lub teeb liab (xws li cov teeb pom kev zoo nqaij), R9 feem ntau siv los ua qhov tseem ceeb rau kev ntsuas LED.

Cov xim kub tuaj yeem xam los ntawm cov xim sib txawv. Txawm li cas los xij, yog tias koj ua tib zoo saib daim duab chromaticity, koj yuav pom tias tib xim kub tuaj yeem sib haum rau ntau cov xim sib koom ua ke, thaum ib khub xim sib koom tsuas yog sib haum rau ib qho xim kub. Yog li ntawd, nws yog qhov tseeb dua los siv cov xim sib koom tes los piav txog cov xim ntawm lub teeb ci. Cov zaub Performance index nws tus kheej tsis muaj dab tsi ua nrog cov xim sib koom ua ke thiab xim kub, tab sis qhov siab dua cov xim kub, qhov txias dua lub teeb xim, cov xim liab tsawg nyob rau hauv lub teeb ci, thiab nws yog ib qho nyuaj rau ua tiav cov zaub siab heev. Rau qhov chaw sov so nrog cov xim tsis tshua muaj xim, muaj cov xim liab ntau dua, qhov dav spectrum npog, thiab ze rau lub spectrum ntawm ntuj lub teeb, yog li cov xim rendering Performance index tuaj yeem siab heev. Qhov no yog vim li cas LEDs saum toj 95Ra ntawm lub khw muaj xim kub.