LED xav kom ua kom pom tseeb (LED STRIPS)

LED xav kom pom tseeb (LED STRIPS)

Thaum peb xav txog ib qho optic LED, peb yuav xav txog lub lens ntshiab uas muab tso rau sab saum toj ntawm LED nws tus kheej los ua kom pom tseeb los yog kis lub teeb. Yog tias qhov no yog koj txoj kev xav, koj twb mus dhau deb lawm. Cia coj ib kauj ruam rov qab thiab ntsia ntawm nws tus kheej. Pom hais tias kev tiv thaiv kab mob me me tshaj li ntawm lub diode? Qhov no yog qhov hu ua "primary optic" uas yog siv los tiv thaiv thiab tsim cov khoom tso tawm ntawm lub diode me me. Lub teeb los ntawm cov LEDs thawj optic yog tseem kab dhau rau ntau daim ntawv sau npe, tsis muaj kev siv dhau deb. Qhov no yog vim li cas feem ntau cov khoom siv hluav taws xob (OPTS) siv cov khoom siv ob lub thauv (lo ntsiab muag, lub teeb nrig, TIR optics, thiab lwm yam) kom sau tag nrho cov teeb ntawd thiab ua kom nws loj hlob ntawm qhov hom phiaj.

Tsim cov lo ntsiab muag thiab cov reflectors rau cov LEDs (solid state-state lighting) muaj ntau yam txawv dua li qis ntog xwb ntawm lwm lub teeb pom kev. Qhov no tej zaum yuav zoo li ib txoj kev xav kom lawv tsim, raws li LEDs muaj ntau yam me me tshaj lwm yam tshaj li lwm qhov pom kev, tab sis lawv kuj txawv nyob rau hauv lawv txoj kev ua haujlwm li cas. Raws li koj tuaj yeem pom ntawm cov qhov muag teeb, lawv ci ntsa iab hauv 360 degrees, tab sis cov LEDs yog cov teeb pom kev zoo, qhia txog 180 degrees xwb. Qhov no yog vim muaj qhov tsim ntawm LED, raws li koj tuaj yeem pom mus rau sab laug, ib lub teeb emitting diode muaj ib los yog ntau dua tuag, ua ke ntawm cov khoom siv hluav taws xob, nrog cov khoom siv hluav taws xob uas muaj qhov tuag. Yog li, qhov ntau tshaj plaws LEDs tau emit yog 180 degrees raws li lub substrate yog nyob sab tom qab ntawm tus tuag.

Cov fais fab loj yog cov kev txhim kho kom zoo thiab muaj kev xaiv ntse rau ntau hom kev siv. Raws li peb tau hais los saum toj no, rau ntau qhov kev siv, xws li sab nrauv / poob teeb pom kev zoo, kev teeb pom kev zoo, teeb pom kev hauv vaj tse thiab qhov chaw teeb pom kev zoo, cov emitter thiab thawj optic rau lawv tus kheej tsis tuaj yeem xa kom khov mus rau qhov chaw. Peb tus nquab mus ua cov pa luam yeeb tso saum toj siab, tiam sis lwm txoj kev piav txog nws yog tias cov txiv neej muab tawm ntawm Lambertian lub teeb cev. Qhov no txhais tau hais tias qhov ci ntsa iab rau ib tus neeg soj ntsuam yog tib yam, tsis hais tus saib xyuas txoj haujlwm. Yog hais tias koj tau pom ib tug liab dawb emitter teeb, koj tuaj yeem pom qhov tam sim no. Txawm hais tias koj nyob deb ntawm sab, koj tuaj yeem pom tau tias lub teeb ci ci tsis tshua muaj siab, nws yuav ntshe txawm khov koj lub qhov muag los saib. Qhov teeb meem yog hais tias qhov no lub teeb yog cia li pov tseg tawm nrog tsis muaj dab tsi harnessing lub rays.

Secondary optics yog siv los ua kom pom cov teeb ci rau hauv ib qho chaw nqaj hlau uas yuav coj los ua kom qhov chaw zoo rau cheeb tsam koj xav tau. Collimated lub teeb rays kis mus rau hauv parallel, tab sis nws yog tsis yooj yim sua kom ua rau lub teeb zoo kawg nkaus parallel vim ntawm diffraction thiab finite lub cev loj ntawm lub liab emitter. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias lub teeb me me (emitter), qhov zoo tshaj qhov txheej txheem yuav yog.

Hauv kev piav qhia txog kev siv ob sab qhov muag lossis cov lens li cas los xij, peb nquag saib lub qhov pom lossis lub dav dav qhov siab tshaj plaws (FWHM). FWHM yog qhov dav dav ntawm cov nqaj thaum qhov siv ntawm ntug yog ib nrab qhov siv hauv qhov chaw ntawm lub nqaj. Qhov no yog ib txoj hau kev pab cuam rau kev cais tawm optics, tab sis nws tsis suav rau hauv qhov txawv qhov txawv nruab nrab ntawm qee qhov kev sib tw ntawm qhov chaw (ntau qhov sib txawv ntawm qhov txawv). Nws yog qhov zoo uas yuav tsum paub tias cov pob optics nrog cov ces kaum pom zoo sib xws siv tau txawv heev thiab qhov zoo ntawm qhov nqaj nyob ntawm tus qauv tsim hluav taws xob. Nyob rau ntawm nplooj ntawv optics ntawm peb lub vev xaib, peb sim sau tag nrho cov ces kaum sib txawv thiab FWHM rau txhua tus LED peb nqa.

Secondary optics tsis yog tsuas yog ua kom muaj lub teeb, qee zaus lawv siv los txhim kho cov xim tsis haum thiab lub teeb nrig hauv cheeb tsam cov tsom. Xaiv qhov tsim nyog optical lossis lens nyob ntawm daim ntawv thov. Reflectors thiab TIR optics siv ntau daim ntawv thov thiab ob leeg muaj qhov zoo thiab qhov tsis zoo.