Tsis muaj kev cuam tshuam lumen tso zis lossis kev tswj lub ntsej muag, avaj huam sib luag LED downlightyog qhov tsawg profile recessed qab nthab teeb uas tuaj yeem haum hauv plenums nrog me ntsis tob. Txhua qhov chaw lag luam, thaj chaw, lossis chaw ua haujlwm tuaj yeem hloov pauv mus rau qhov pom kev zoo nkauj nrog lub teeb maj mam, sib npaug ua tsaug rau lub teeb ci ntsa iab tag nrho. Tsis tas li ntawd, qhov loj, hluav taws kub- ntsuas lossis IC (kev tiv thaiv hluav taws xob)- ntsuas vaj tse tsis tsim nyog nrog qhov kev xaiv teeb pom kev zoo no ntxiv lawm. Cov kaus poom tsis muaj, wafer- daim ntawv nyias muaj qhov zoo nkauj zoo nkauj uas tso cai rau saum npoo daim ntawv thov nrog rau cov khoom siv qis dua thiab yooj yim installation. Cov teeb ci qab nthab me me no, uas tuaj yeem hloov pauv thiab square aperture xaiv, tuaj yeem sib tw nrog kev tsim kho tshiab lossis kev txhim kho kho dua tshiab. Lawv tuaj yeem siv rau cov teeb pom kev zoo hauv chaw ua haujlwm, khw muag khoom, tsev noj mov, tsev kho mob, chav nyob, chav ua noj, thiab chav dej, lossis siv rau hauv me me, nyuaj- mus rau - mus txog thaj chaw xws li txee dai khaub ncaws, hauv qab daus, hauv tsev, stairwells, elevator, thiab sab nrauv soffits.
Tswj LEDs 'tsis tshua muaj siab brightness
Ultra-thin LED downlights feem ntau yog cov khoom siv hluav taws xob sab nraud uas siv cov txheej txheem kho qhov muag kom tsim tau qhov sib xws tsis tu ncua thoob plaws tag nrho ntawm lub vaj huam sib luag. LEDs yog cov kev taw qhia emitters nrog lub siab ci ntsa iab thiab muaj qhov ntom ntom ntom ntom. Cov qauv tsim backlit siv cov qib siab ntawm qhov sib txawv, uas ua rau muaj qhov cuam tshuam loj ntawm qhov muag pom, kom tshem tawm ntawm LED kub qhov chaw thiab glare. Txawm hais tias nws ua rau cov khoom siv tuab dua, ua rau qhov kev ncua deb ntawm lub teeb ci thiab qhov ua tau zoo dua diffusing lens tuaj yeem tsim qhov sib faib ntau dua ntawm lub teeb. LEDs yog regressed tob rau hauv lub casing nyob rau hauv cov pa LED downlights. Cov luminaires tswj glare los ntawm daim npog qhov ci LEDs los ntawm kev pom ncaj qha, txawm li cas los xij muaj qhov ci ntsa iab zoo thaum saib mus rau hauv lub luminaire. Thaum tus nqi qis dua qhov teeb pom kev zoo, qhov kev txiav tawm optics txo qis cov teeb pom kev zoo. Vim tias cov teeb pom kev zoo ib txwm xav tau lub teeb pom kev zoo vim lawv txoj kev nqaim nqaim, lawv tsis yog qhov kev xaiv zoo rau kev siv teeb pom kev zoo.
Optical architecture nrog ntug teeb pom kev zoo
Ntug -lit tsim ntawm lub wafer-thin downlight siv lub teeb qhia vaj huam sib luag (LGP) kom sib npaug faib lub teeb thoob plaws lub teeb emitting nto (LES) thiab tso cov teeb pom kev zoo raws lub teeb ci sab. Lub teeb los ntawm ntug-mounted LEDs nkag mus rau LGP los ntawm sab. Daim ntawv qhia lub teeb pom kev nkag mus yuav tsum tau ua kom haum rau mating SMD LEDs 'pob teeb tsa thiab lub teeb tso tawm hluav taws xob qauv txhawm rau kom sib sau lub teeb zoo. Tag nrho cov kev xav sab hauv (TIR) yog siv los txav lub teeb ntes mus rau cov ntsiab lus tawm. Cov ntsiab lus tawm yog lub teeb rho tawm cov ntsiab lus uas tso cai rau kev tswj hwm lub teeb kom dim ntawm lub teeb qhia. Txhawm rau kom lav qhov kev tso tawm zoo ib yam, ib qho kev qhia lub teeb nta lub matrix ntawm cov ntsiab lus tawm uas sib npaug sib npaug ntawm lub vaj huam sib luag. Los ntawm kev cuam tshuam cov kab teeb qis mus rau qhov siab - transmittance hauv qab diffuser, LGP ua kom muaj qhov sib luag ntawm cov teeb pom kev zoo thiab maj mam ua kom zoo nkauj zoo nkauj luminous nto. Txhua lub teeb ci ntsa iab yog coj mus rau hauv qab los ntawm cov txheej txheem sab saum toj ntawm cov txheej txheem ntau- txheej kho qhov muag.
Kev tsim kho kho qhov muag
Hauv cov ntsiab lus, LGP yog nyob nruab nrab ntawm PET dawb sab saum toj reflector thiab opal dawb hauv qab diffuser hauv ntau - txheej txheej kho qhov muag ntawm ntug-lit LED downlight. Lub LGP yog ib feem ntawm lub luminaire uas yog qhov tseem ceeb tshaj plaws rau nws qhov kev ua haujlwm kho qhov muag. Nws lub teeb ntes kev ua tau zoo, kev ua haujlwm ntawm kev rho tawm thiab cov qauv xa tawm muaj kev cuam tshuam zoo rau lub teeb pom kev zoo thiab kab teeb pom kev zoo. Lub teeb qhia yog tsim los ntawm optically ntshiab polymer, xws li polycarbonate (PC) los yog acrylic (PMMA). Lub coupling nto (input interface) thiab lub teeb extraction nta (tawm cov ntsiab lus) yog lub ntsiab tsim ntawm lub LGP. Tshaj 90% coupling efficiency tuaj yeem ua tiav nrog qhov zoo -tsim nkag interface. Kev xaiv lub teeb pom kev zoo tsim thiab qhov ntom ntom yog qhov tseem ceeb vim tias nws cuam tshuam rau ob qho tib si cov txiaj ntsig ntawm LGP thiab kev faib tawm ntawm lub teeb tawm ntawm lub luminaire.
Rau cov neeg tsis paub, LGP yog lub neej tseem ceeb - txwv lub hauv paus ntawm ntug -lit LED system. Pheej yig polystyrene (PS) LGPs, uas yuav ua daj nyob rau hauv ob xyoos, yog siv nyob rau hauv ntau yam khoom. LGP discoloration qhia tias cov khoom lub neej yog los txog rau qhov kawg. Thaum ntsuas qhov ntug- cov khoom teeb, nws yog qhov tseem ceeb los txiav txim siab cov khoom siv los tsim LGP. Txog tam sim no cov khoom siv zoo tshaj plaws rau LGP daim ntawv thov yog UV-stabilized PC, qhov PMMA yog cov khoom siv LGP feem ntau vim nws cov nqi, zoo thermal stability thiab zoo heev optical clarity.
Thermal tswj
Lub fixture-raws li-heat-sink tsim ntawm ibultra-thin LED downlighttxo cov thermal txoj kev kom zoo dua tshav kub rho tawm. Cov tuag- nrum aluminium casing uas nyob hauv LEDs raws lub aperture sab hauv ob npaug li lub dab dej kub. Txhawm rau kom ua tiav qhov chaw zoo tshaj plaws rau cov cua sov dissipation, lub dab dej kub muaj kev sib xyaw ua ke. Lub thermal hloov pauv ntawm lub dab dej kub dhau los yuav tsum tshaj tus nqi ntawm lub zog thermal nkag mus rau qhov system los ntawm LEDs. Ultra-thin LED downlights siv nruab nrab-lub zog SMD LEDs uas yuav tsum tau ceev faj tswj ntawm qhov kub thiab txias. Vim yog cua sov-induced discoloration ntawm cov yas vaj tse, kev khiav hauj lwm cov pob LED no tshaj qhov siab tshaj plaws nyob rau hauv lub qhov hluav taws xob junction kub yuav ua rau kom lub teeb deterioration ntawm cov zis thiab ua rau cov xim hloov. Nws yog ib qho tseem ceeb kom muaj txoj kev tshav kub thiab tsis txhob overdriving lub LEDs. LEDs yuav nthuav tawm kev ua haujlwm tsis zoo ntawm lub zog tsav tam sim no, uas tuaj yeem ua rau lub nra hnyav heev.
Rendering nyob rau hauv cov xim
Ntug -lit LED downlights tuaj yeem muaj SMD LEDs ntawm txawv specs. Kev xaiv ntawm lub teeb ci yog cuam tshuam los ntawm ntau yam. Ib qho ntawm cov ntsiab lus no uas yuav tsum tau coj mus rau hauv tus account kom zoo rau qee daim ntawv thov yog cov yam ntxwv xim ntawm LEDs. Feem ntau ntawm ntug-litLED downlightstau ua lag luam raws li huab hwm coj- cov khoom tsim tawm, thiab cov khoom siv luminous feem ntau cuam tshuam cov xim zoo. Cov xim rendering Performance index (CRI) rau cov khoom no yog nyob rau hauv qis rau nruab nrab -80s. Ntxiv rau qhov muaj xim kub, qhov qis CRI luminaires muab lub teeb pom kev zoo uas txaus siab rau cov neeg siv khoom uas tsis muaj kev kawm. Tab sis vim hais tias cov LEDs yog oversaturated nyob rau hauv xiav thiab ntsuab spectrums, lawv tsis tuaj yeem tsim cov xim saturated, uas yog qhov tseem ceeb rau kev nthuav tawm cov xim ntawm cov tawv nqaij, cov khoom, kos duab, thiab lwm yam uas muaj yeeb yuj. Nws raug nquahu kom siv cov teeb pom kev zoo nrog qhov tsawg kawg nkaus CRI ntawm 90 thaum ntug-lit LED downlights yog qhov tseem ceeb ntawm kev teeb pom kev zoo hauv kev ua neej nyob, ua haujlwm, lossis chaw muag khoom.
Kub thiab sib xws ntawm cov xim
Kev sib txheeb xim kub (CCT) ntawm 2700K, 3000K, 3500K, 4000K, lossis 5000K tuaj yeem teeb tsa rau LEDs. Kev lag luam teeb pom kev zoo feem ntau yog siv cov cua txias lossis siab CCT lub teeb ci. Vim lawv muaj zog tiv thaiv melatonin, uas yog ib qho tseem ceeb ntawm tib neeg kev tiv thaiv mechanism, cov teeb pom kev zoo no tsis raug qhia rau kev siv hauv tsev. Thaum nws los txog rau kev teeb pom kev zoo hauv tsev, teeb pom kev zoo nyob hauv tsev, thiab cov ntawv thov uas tseem ceeb rau kev so, qhov chaw sov so (2700K txog 3200K) feem ntau xaiv. Lub teeb sov sov uas muaj feem pua ntawm cov xiav xiav tsis cuam tshuam rau kev tsim melatonin hmo ntuj, yog li txhawb kev pw tsaug zog. LGP's ntug-lit architecture ua kom muaj xim sib xyaw. Los ntawm kev ua qhov no, cov xim hloov pauv thoob plaws tag nrho cov luminous nto yog tshem tawm. Yog hais tias cov LEDs nyob rau hauv backlit systems tsis binned mus rau ib tug nruj kam rau ua, yuav muaj ib tug tseem ceeb xim txawv ntawm cov LEDs. Ntug-lit LED downlights 'cov xim tshwj xeeb sib xyaw muaj peev xwm ua rau lawv siv tau rau hauv cov ntawv thov teeb pom kev zoo dawb nrog rau tib neeg- teeb pom kev zoo thiab dim- rau- teeb pom kev zoo hauv huab cua sov.
LED dimming thiab tsav tsheb
Ib tug off- tsav tsheb LED tsav tsheb uas tej zaum yuav raug xa mus rau cov chaw taws teeb rau kev siv hluav taws xob hauv qab nthabntug-lit LED downlights. Ntau yam input voltages, xws li 120-277 volts, tuaj yeem txhawb nqa los ntawm tus neeg tsav tsheb, lossis nws tuaj yeem ua rau khiav ntawm qee qhov voltage, xws li 120 volts. Nws yog ib qho tseem ceeb uas tus neeg tsav tsheb tsim ob peb ripples li sai tau nyob rau hauv cov zis tam sim no uas yog nkag mus rau lub LED load. Flicker thiab lwm yam tsis pom kev tshwm sim los ntawm cov ripples loj hauv DC tam sim no tuaj yeem ua rau mob taub hau, mob qhov muag, thiab qhov muag tsis pom kev.
Txhawm rau kho lub teeb pom kev zoo rau cov kev xav tau lossis kev nyiam ntawm tus neeg siv, nws yog qhov xav tau kom muaj peev xwm dim lub teeb ci LED. Kev txo tam sim no tsis tu ncua (CCR) dimming circuitry, uas ua kom du dimming ntawm 0–10V lossis DALI tswj, tuaj yeem muab tso rau hauv tus tsav tsheb. Nws yog ib qho tseem ceeb uas lub dimming tswj thiab LED tsav tsheb ua haujlwm ua ke. Qhov teeb meem feem ntau tshwm sim thaum hluav taws xob tsis tshua muaj hluav taws xob (ELV) lossis rau pem hauv ntej theem (TRIAC) dimmer yog siv los dim lub teeb ntawm LED. LEDs yuav flicker, tso tawm, pop rau, lossis tuag mus los ntawm qhov tsis sib xws ntawm theem tswj dimmer thiab hloov hom fais fab mov (SMPS) kev sib cuam tshuam.
