Plaub txoj haujlwm diffuser ua ib zaug
Lub diffuser muaj cov lus piav qhia txoj haujlwm tsis ncaj ncees. Nyob rau hauv tib lub nyias phab ntsa nws yuav tsum nkaum lub diode dots, muab rov qab ntau npaum li cas ntawm cov lumens nws cia li tawg khiav ri niab li sai tau, tuav nws cov duab ob peb millimeters los ntawm ib tug sov so LED board, thiab tseem tsis tig amber nyob rau hauv peb lub xyoos. PMMA thiab polycarbonate, ob qhov tseem ceeb ntawm LED diffuser cov ntaub ntawv, faib cov plaub qhov kev xav tau sib txawv, thiab feem ntau "acrylic tiv thaiv polycarbonate" nplooj ntawv koj yuav pom tau sau los ntawm ib tus neeg uas tsuas muag ib qho ntawm ob. Peb extrude ob qho tib si rau kev kos duab, txhua lub lim tiam, yog li ntawm no yog qhov sib piv tsis muaj tus ntiv tes xoo ntawm qhov ntsuas.
Yog hais tias koj tsim los yog qhov chaw luminaires, qhov no yog sau rau lub caij koj nyob nraum spec'ing kev cai npog thiab cov ntaub ntawv ib leeg yuav tsis qhia koj txoj kev dhia. Kev ncaj ncees framing, hais ib zaug thiab tsis rov ua dua li muab tub lim: tsis muaj universally zoo polymer ntawmLED diffuser cov ntaub ntawv, tsuas yog ib qho uas haum rau koj lub fixture lub tshav kub, cuam tshuam, kho qhov muag thiab lub hnab ntawv huab cua zoo dua li lwm qhov. Qhov seem ntawm tsab xov xwm no yog hais txog kev nyeem ntawv lub hnab ntawv uas koj nyob hauv.
Qhov twg ob lub polymers sib cais ntawm lub rooj ntev zaum
Cov khoom uas tseem ceeb rau lub diffuser pawg ua plaub pawg: ntau npaum li cas koj khaws lub teeb, nws tuaj yeem kub npaum li cas, nws tuaj yeem raug ntaus, thiab nws hnub nyoog npaum li cas. PMMA (acrylic) thiab polycarbonate av nyob rau sab nraud ntawm yuav luag txhua tus. Cov lej hauv qab no yog cov qauv kho qhov muag - qib datasheet ranges, qhov tseem ceeb peb ua haujlwm rau thaum qhia txogPMMA thiab polycarbonate LED diffuser cov ntaub ntawv.
| Khoom | PMMA (Acrylic) | Polycarbonate (PC) |
|---|---|---|
| Luminous transmittance, ntshiab | ~92% | ~88–90% |
| Kev pabcuam kub tsis tu ncua | ~ 70-80 degree | ~ 115-120 degree |
| Thaum tshav kub kub deflection | ~ 95 degree | ~ 130℃+ |
| Kev cuam tshuam tsis kam | Zoo; nruj, tuaj yeem nti | Siab heev; zoo unbreakable nyob rau hauv nyias phab ntsa |
| Flammability | Inherently combustible | Inherently nplaim taws-retardant; Qib mus txog UL 94 V-2 / V-0 |
| Sab nraum zoov / UV cwj pwm | Raws li UV- ruaj khov | Yellows tsis muaj UV stabilization |
| Tus nqi ntawm cov khoom siv txheeb ze | Lub hauv paus | Kwv yees li 30-40% siab dua |
Luminous transmittance ntawm no yog daim duab ntsuas hauv qabASTM D 1003 Cov Lus Qhiahaze-thiab- txoj kev xa tawm, tsuas yog txiv apples-rau- txiv apples txoj kev los piv ob cov yas ntshiab. Nws yog ib qho tsim nyog nkag siab, vim hais tias tib tus qauv kuj ntsuas huab cua, cov cuab yeej diffuser tiag tiag xav tau ntau dua. Lub npog uas tsis muaj haze tsuas yog lub qhov rais xwb. Hauv kev xyaum peb kho qhov kev xa tawm ntawm cov qib PC diffusing mus rau kwv yees li 82-89% tawm tsam tus neeg siv khoom tus qauv, ua lag luam ob peb lub teeb rau lub teeb taws uas faus lub diodes, uas yog vim li cas lub rooj tsuas yog pib taw tes. Qhov ob peb-feem pua kis tau tus mob rau acrylic yog tiag tiag thiab dawb; polycarbonate them rau nws cov tawv thiab kub kam rau ua optics, huab cua tus cwj pwm thiab tus nqi, thaum acrylic them rau nws clarity nrog ib tug nyuaj kub qab nthab thiab ib tug flammability teeb meem tsis muaj additive tag nrho daws.
Ib lo lus ntawm ob lub polymers pheej yig dua uas ntog hauv tus nqi- nqe lus sib tham. Polystyrene tshwm nyob rau hauv cov nyiaj txiag vaj huam sib luag- teeb pom kev zoo vim nws pheej yig, tab sis nws qhov kev tiv thaiv tshav kub yog qhov tsis zoo thiab nws embrites thiab yellows nrog rau ib puag ncig tiag tiag: zoo nyob rau hauv ib qho chaw txias, kaw sab hauv vaj huam sib luag, lub luag hauj lwm nyob qhov twg. Polypropylene diffuses lub teeb zoo nkauj thiab raug nqi me ntsis, tab sis nws huab cua tsis zoo thiab amber nyob rau hauv UV, yog li nws nyob hauv tsev. Ob leeg tuaj yeem tsim nyog rau qhov tshwj xeeb kaw, qis- kev ntxhov siab; ob leeg dhau los ua qhov teeb meem lav lub sijhawm ib tus neeg specs lawv sab nraum zoov kom chais ob peb xees tawm ntawm daim nqi ntawm cov ntaub ntawv. Thaum ib qho kev tsocai rau LED diffuser profile los ntawm qhov pheej yig pheej yig, cov polymer feem ntau yog vim li cas, thiab nws tsim nyog nug tus twg ua ntej nws xa khoom.
Brightness koj khaws piv rau cov dots koj zais
Qhov yuam kev tshaj plaws uas peb pom yog cov neeg yuav khoom tau caum lub siab tshaj plaws - cov khoom xa tawm thiab tom qab ntawd xav tsis thoob lub teeb tseem zoo li pom, lossis caum lub npog tsis pom tseeb tshaj plaws thiab xav tsis thoob tias lawv cov lumen mus qhov twg. Transmittance thiab diffusion rub tawm ntawm ib leeg, thiab qhov nro ntawd nyob hauvua kom tiav, tsis yog lub hauv paus polymer.
| Ua kom tiav | Hom kev xa tawm | Yuav ua li cas nws tawg | Zoo tshaj rau |
|---|---|---|---|
| Ntshiab | ~90–95% | Yuav luag tsis muaj | Hniav strips, max tso zis, dots tau |
| Frosted | ~85–90% | Ntawm qhov chaw (etch / texture) | General ambient, nruab nrab dot- nkaum |
| Opal / mis nyuj | ~65–75% | Los ntawm bulk (particles) | Pom pom fixtures, kab du, tso zis txiab |
Lub tshuab yog qhov kev pom tiag tiag, thiab nws yog qhov tseem ceeb ntawm kev xaiv ntawm LED diffuser cov ntaub ntawv los ntawm kev ua tiav es tsis yog los ntawm polymer. Lub frosted tiav scatters ntawm ib tug textured nto, yog li nws nyob twj ywm kaj, tab sis nyob ze lub diodes tuaj yeem nyeem tau, uas yog vim li cas pebFrosted acrylic diffuser profilesmus qhov twg lub fixture zaum me ntsis tawm ntawm qhov pom ncaj qha. Ib qho opal npog nqa diffusing hais los ntawm tag nrho cov phab ntsa tuab, tawg los ntawm ntim, zoo dua ntawm kev tshem tawm hotspots, ntawm tus nqi sib kis. Qhov 5-10% / 15-25% / 30-40% poob bands saum toj no yog txoj cai ntawm tus ntiv tes xoo peb loj rau hauv kev xyaum; Lub ntsiab lus yog qhov zais diodes thiab khaws lumens ncaj qha tawm tsam, thiab koj xaiv qhov twg ntawm qhov nkhaus mus zaum.
Qhov kawgua tsis taukho yog phem geometry. If your diodes sit 30+ mm apart on a low-density strip and the cover rides a few millimetres above them, no material on earth gives you a clean line: source spacing and diffusion distance win every time. Cov khoom siv yog qhov kawg 10% ntawm hotspot tswj, tom qab ceev, channel qhov tob thiab qhov sib txawv ntawm huab cua; tag nrho pawg yog nyob rau hauv peb walkthrough ontsim ib lub teeb ci LED teeb nrog lub diffuser. Spec cov geometry ua ntej, tom qab ntawd xaiv qhov ua tiav kom tiav txoj haujlwm.
Thaum tshav kub los yog hluav taws txiav txim siab: polycarbonate diffuser tshav kub tiv thaiv PMMA lub qab nthab
Rau kev ua haujlwm sab hauv tsev ntau qhov kev sib cav kho qhov muag sau cov yeeb yam thiab acrylic yeej nws. Tom qab ntawd koj muab lub hau npog rau hauv qhov chaw kaw, lossis ib sab ntawm lub siab - lub hwj chim board, los yog rov qab los - huab cua plenum, thiab kev sib tham hloov. Acrylic lub tshav kub deflection kub zaum nyob ib ncig ntawm 95℃thiab nws cov xis nyob txuas ntxiv yog qis dua; nyob rau hauv ib tug nyias extruded seem bridging ib tug sov so tsev nyob, uas cov npoo ploj sai dua li cov neeg xav tau, thiab ib tug sagging los yog bowed npog yog ib tug warranty rov qab. Polycarbonate diffuser tshav kub tsis kam yog yooj yim dua, nws deflection kub khiav roughly 35℃saum acrylic's, uas yog vim li cas.nyob rau hauv, siab - tso zis thiab industrial fixturesyog li feem ntau qhia nws tsis hais txog kev nplua kho qhov muag.
Hluav taws yog txoj kab nyuaj. Polycarbonate yog lub hauv paus ntawm nplaim taws- retardant thiab muaj nyob rau hauv cov qib uas nqaUAS 94V-2 thiab V-0 kev ntaus nqi; acrylic yog inherently combustible, thiab, yuav tsum blunt txog nws, tsis muaj ib tug additive pob uas hloov ib tug txheej txheem acrylic diffuser rau hauv ib tug tiag tiag nplaim-rated ib yam uas tsis wrecking nws optics. Yog li, tawm tsam ib txwm "lawv zoo ib yam" framing: yog tias koj lub luminaire yuav tsum tau ua kom tau raws li qhov ntsuas nplaim taws, plenum xav tau, lossis tus qauv thauj khoom, cov khoom siv LED diffuser xaiv tau ua, thiab nws yog polycarbonate. Hauv peb qhov kev paub PC ncav cuag V-2 tau yooj yim thiab V-0 ntawm cov phab ntsa nyias nyob ib ncig ntawm 1.6 hli, tsis muaj npib pov. Qhov koj yuav tsum tautsis yogua yog ncav cuag rau PC "kom muaj kev nyab xeeb" thaum tsis muaj cua sov, cuam tshuam lossis hluav taws siv tiag tiag; koj yuav them tus nqi 30-40% thiab muab rov qab ob peb lub ntsiab lus ntawm qhov kaj rau lub taub hau koj yuav tsis siv.
Cov lus nug yellowing, nrog cov lej peb sawv tom qab
Polycarbonatelub koob npe nrov rau yellowing yog ib qho kev thov rov qab tshaj plaws nyob rau hauv pawg no, thiab tseem tshaj tawm hnub tim, yog li cia peb teb cov lus nug uas tus kws ua haujlwm coj ncaj ncees los nug kom nrov nrov: yog tias PC yellows, vim li cas peb yuav puas spec nws? Yellowing yog yees duab-oxidation: UV photons rhuav tshem polymer bonds, tshav kub ua kom cov tshuaj tiv thaiv, thiab cov saw puas tshwm sim raws li cov xim amber uas, nyob rau hauv lub tshav pob, tus nqi npog ib feem peb ntawm nws cov zis ua ntej leej twg hloov nws. Unstabilized polycarbonate yog qhov yooj yim heev. Cov ntsiab lus tsis muaj leej twg muab tso rau hauv lub ntsiab lus yog lo lustsis ruaj khov. Cov peev nyiaj npog uas hla UV inhibitors xws li HALS thiab benzotriazoles tuaj yeem pib ambering hauv ob mus rau peb xyoos; tib lub polymer nrog ib tug zoo UV-stabilized cap shrugs nws tawm rau ib xyoo caum los yog ntau tshaj, cov duab peb tau hais los ntawm qhov peb tau pom rov qab los ntawm cov hauj lwm, tsis yog los ntawm ib daim ntawv qhia.
Tom qab ntawd LED hloov tus lej lej. Ob lub cav ntawm yellowing yeej ib txwm UV thiab cua sov, thiab ib qho LED qhov emits yuav luag tsis muaj UV thiab khiav deb tshaj li cov fluorescent raj cov npog no siv los zaum hauv qab. Hloov lub teeb lub cav thiab koj tau tshem tawm feem ntau ntawm qhov ua rau. Muaj ib qho kev sib txawv ntawm cov neeg muag khoom feem ntau yuav tsis sau ntawv, txawm li cas los xij: yuav ua li cas kaw lub teeb thiab kaw lub hau rau lub dab dej kub npaum li cas, uas txiav txim siab seb tus qauv UV- qib ruaj khov txaus lossis koj xav tau lub hau tawv dua; uas yog ib yam peb nyeem tawm ntawm daim duab. Acrylic khaws cov ntug tiag tiag hauv lub hnub nyoos vim tias nws yog UV- ruaj khov los ntawm qhov xwm txheej, thaum qib PC ruaj khov kaw feem ntau ntawm qhov sib txawv. Txoj cai peb siv tau: liab qab sab nraum zoov raug mus rau PMMA, ib qho chaw kaw los yog ze rau - cov khoom cua sov mus rauruaj khov PC, thiab tsis muaj qhov kev xaiv thib peb.
Yuav ua li cas hloov thaum lub diffuser yog extruded, tsis txiav los ntawm daim ntawv
Txhua qhov kev sib piv hauv online kho cov no ua cov ntawv tiaj tus. Lub diffuser hauv lub luminaire tiag tiag yog yuav luag tsis muaj daim ntawv tiaj tus, nws yog qhov profile, thiab qhov ntawd hloov qhov ua tau raws li tus neeg xa khoom daim ntawv tsis tuaj yeem muab. Qhov no yog qhov uas extruded LED diffuser cov ntaub ntawv tsis yog ib yam khoom.
Peb yam qhib. Ua ntej, co-extrusion: peb tuaj yeem khiav lub cev kho qhov muag tsis zoo thiab lub ntsej muag muag muag hauv ib qho dhau los, yog li lub hau uas nthuav tawm koj lub teeb kuj gaskets tawm tsam lub tsev tsis muaj qhov thib ob. Qhov thib ob, tus ntoo khaub lig- ntu yog koj li: snap nta, lub ntsej muag glazing, ib daim di ncauj sab hauv thiab qhov chaw diffusing tag nrho tuaj yeem siv rau hauv ib qho txuas ntxiv, uas yog li cas koj tsoo peb SKUs rau hauv ib qho thiab tua ib lub siab ntev ntawm lub rooj sib txoos. Thib peb, haze tuaj yeem ua rau hauv cov yaj es tsis yog rau ntawm qhov chaw xwb, yog li qhov sib txawv ntawm phab ntsa thiab yuav tsis polish tawm ntawm lub voj voog tu. Peb extrude cov no hla pebteeb pom kev zoo polycarbonate profilesthiabteeb pom kev zoo acrylic profilesnyob rau hauv seem ntawm ob peb millimeters mus txog 500 mm dav, nyob rau hauv ntshiab, frosted thiab opal, nrog tooling txiav nyob rau hauv - tsev yog li ib tug tshiab seem tsis txhais hais tias ib tug rau -lub lim tiam tos. Lub tswv yim upshot rau tus tsim qauv: piav qhia txog kev kho qhov muag thiab kev ua haujlwm, thiab qhov profile tau zoo li nws, es tsis txhob rov tsim kho qhov chaw nyob ib ncig ntawm txhua qhov chaw tiaj tus.
Sib piv cov khoom siv rau kev teeb tsa tiag tiag
Tshem tawm qhov kev lag luam thiab qhov kev txiav txim siab feem ntau daws nws tus kheej thaum koj sau npe rau ib puag ncig. Cov xwm txheej peb pom feem ntau, thiab cov khoom siv LED diffuser txhua tus taw qhia rau:
Ib qho zais hauv tsev khiav, cov teeb pom kev zoo, hauv qab - txee, nyob qhov twg qhov chaw nws tus kheej tsis pom, yog acrylic lub tsev turf. Tsis muaj dab tsi hits nws, nws tsis khiav kub, thiab koj xav kom txhua lumen rov qab, yog li ntawdopal acrylic ximmuab cov kab smoothest ntawm qhov kev sib kis siab tshaj plaws.
Muab tib lub npog rau hauv pem teb, hauv qhov chaw pej xeem, lossis txhua qhov kev tsim txom -nrawm xws li stair nosings lossis gym thiab cov khw muag khoom fittings, thiab qhov tseem ceeb hloov mus rau polycarbonate rau kev cuam tshuam ib leeg; yog tias nws tseem nyob sab nraum zoov, UV- qib PC ruaj khov ua haujlwm ob zaug ib zaug. Txawm hais tias tus qauv stabilized qib yog txaus los yog koj xav tau ib qho nyuaj -coated los ntawm seb lub fixture yog kaw thiab lub hnub ncaj qha nws pom ntau npaum li cas, uas yog yam uas peb txiav txim los ntawm daim duab. Cov hluav taws kub- ntsuas, plenum, lossis daim ntawv thov thauj tshem tawm qhov kev xaiv tag nrho: nws yog nplaim taws- ntsuas polycarbonate diffuser, vim tias acrylic tsis tsim nyog rau nws tus kheej ntawm combustibility ua ntej optics nkag rau hauv kev sib tham. Chaw ua haujlwm thiab tshuaj ntsuam- teeb pom kev ua haujlwm nyob ib sab yog nws tus kheej cov ntaub ntawv: lub hom phiaj muaj qhov muag tsis pom kev (UGR), qhov teeb meem saum npoo - cov teeb meem uas koj daws tau nrog prismatic lossis micro- textured tiav es tsis muaj qhov kub hnyiab ntxiv. And a low-density strip is the trap: no LED diffuser material rescues 30-LED/m spacing under a shallow cover. Ua kom cov channel sib sib zog nqus, ntxiv qhov kev ncua deb, nce mus rau qhov siab - haze opal lossis ob-txheej diffusion pawg, thiab tsuas yog tom qab ntawd cov khoom siv ua tiav txoj haujlwm, lossis ua rau nws nyob ntawm qhov chaw nrog COB sawb, uas nws cov kab phosphor txuas ntxiv tsis muaj qhov sib cais los nkaum.
Rau qhov cuam tshuam -, cua sov- lossis nplaim taws- tsav tsheb, pebpolycarbonate LED diffuser profilesyog cov lus teb ib txwm; rau qhov kho qhov muag -thawj, zais - rooj plaub, covacrylic diffuser profileskhaws lub ci ci qhov twg nws nyob.
Cov lus nug uas nquag nug
Q: Dab tsi yog qhov zoo dua rau LED diffusers, PMMA lossis polycarbonate?
A: Raws li PMMA, vim nws ci dua, ib txwm UV- ruaj khov thiab pheej yig dua, thiab hloov mus rau polycarbonate lub sijhawm ib qho ntawm cov cua sov, qhov cuam tshuam los yog qhov ntsuas nplaim taws dhau los ua qhov nyuaj.
Q: Ntau npaum li cas lub teeb puas LED diffuser tiag thaiv?
A: Kwv yees li 5-10% rau lub npog meej, 15-25% rau frosted, thiab 30-40% lossis ntau dua rau opal, vim zais cov diodes thiab khaws cov lumens ncaj qha.
Q: Vim li cas LED diffuser yellowing tshwm sim dhau sijhawm, thiab ceev npaum li cas?
A: Nws yog UV-thiab-cov duab tshav kub-oxidation; Cov npog tsis ruaj khov tuaj yeem ua rau amber nyob rau hauv ob mus rau peb xyoos, thaum UV- cov qhab nia ruaj khov nyob rau ib xyoo caum lossis ntau dua, thiab qhov chaw LED tawm yuav luag tsis muaj UV los tsav nws thawj qhov chaw.
Q: Opal vs frosted LED diffuser, dab tsi yog qhov txawv?
A: Frosted scatters lub teeb ntawm qhov chaw kho thiab nyob twj ywm ci dua, thaum opal tawg los ntawm cov khoom hauv cov khoom siv ntau rau qhov zoo dua hotspot nkaum ntawm qis dua.
Q: Cov diffuser puas tuaj yeem ua kev cai -extruded es tsis txhob yuav raws li daim ntawv?
A: Yog: kev cai hla-sections, co-extruded rigid-plus- yoog raws sealing npoo, thiab haze ua rau hauv phab ntsa yog txhua yam ua tau los ntawm extrusion, nyob rau hauv seem ntawm ob peb millimeters mus rau 500 mm dav.
Spec nws rau koj fixture, tsis yog rau ib daim ntawv loj
Txoj kev nrawm tshaj plaws kom tau txais txoj cai no yog txwv tsis pub xaiv los ntawm cov ntawv teev npe ntawm cov ntawv loj thiab pib los ntawm koj qhov kev sib tw. Send a drawing, or even a rough cross-section and a description of where the light lives, how dense the strip is, and the rating you need to clear, and we'll come back with a material, a finish and a tooled section. Cov lus qhia ntawd nqa qee qhov hnyav tom qab: peb tau extruded teeb pom kev zoo txij li xyoo 1998 raws li ISO 9001 cov txheej txheem tswj, txiav peb cov cuab yeej hauv - tsev, khiav cov khoom siv kho qhov muag los ntawm cov chaw muag khoom xws li SABIC, Covestro, Mitsubishi thiab Teijin, thiab tig tawm kwv yees li 400 tonnes ib hlis hauv ntu ntawm 2 mm wide. 50 Qhia peb cov khoom siv; peb mam li qhia koj lub diffuser.