Light Distribution Curves: Nkag siab cov duab no yog ib nrab ntawm kev sib ntaus sib tua hauv kev tsim teeb pom kev zoo
Koj puas tau tsis meej pem los ntawm qhov no: koj yuav ib lub teeb fixture nrog lub siab wattage, tab sis qhov tseeb illumination poob luv ntawm kev cia siab? Lub teeb yog qhov tseem ceeb heev, tsim kom muaj qhov hnyav, ci ntsa iab hotspot, lossis dhau mus, tawm hauv tag nrho qhov chaw saib tiaj tus thiab tsis muaj kev tshoov siab. Tus yuam sij rau qhov no feem ntau yog nyob rau hauv kev tshaj lij tab sis tseem ceeb lub tswv yim -theLub Teeb Distribution Curve. Raukev tsim teeb pom kev zoo sab hauv tsev, nkag siab txog daim duab no zoo li tus kws tsim vaj tsev nyeem daim phiaj xwm; nws yog thawj kauj ruam kom tsis txhob muaj teeb meem thiab ua tiav cov teeb pom kev zoo.
Lub Teeb Distribution Curve yog dab tsi? Nws yog ntau tshaj ib daim duab
Yooj yim muab, aLub Teeb Distribution Curve(tseem hu ua photometric data curve lossis polar curve) yog "ID card" thiab "navigation map" ntawm luminaire lub teeb ua haujlwm. Los ntawm kev ntsuas kev tshawb fawb, nws sau tseg tias lub teeb siv zog npaum li cas faib rau txhua qhov kev taw qhia hla peb - qhov chaw seem tom qab tawm hauv qhov chaw sib tw.
Ib daim ntawv ua tiav lub teeb faib cov ntaub ntawv (xws li cov ntaub ntawv IES tus qauv) muaj cov ntaub ntawv ntau dua li koj xav tias:
Core Optical Data: Lub teeb siv zog (hauv candelas, cd) ntawm ntau lub kaum sab xis - tus ntsuj plig ntawm qhov nkhaus.
Zuag qhia tag nrho Performance: Tag nrho cov luminous flux (hauv lumens, lm), luminaire efficiency (lub teeb qhov chaw tso zis vs. fixture output).
Hluav taws xob Parameters: Lub zog hluav taws xob (hauv watts, W), lub zog hluav taws xob (PF).
Cov ntaub ntawv lub cev: Fixture dimensions, qauv, chaw tsim tshuaj paus.
Yog hais tias luminous flux (lumens) qhia rau koj "lub teeb npaum li cas" lub fixture emits, lubLub Teeb Distribution Curveprecisely qhia rau koj "qhov twg tag nrho cov teeb ntawd mus." Qhov no yog lub hauv paus tseem ceeb raubeam kaum xaiv hauv kev lag luam chaw teeb pom kev zoo.
Classifying Light Distribution Curves: Symmetry thiab Beam Angle
Peb tuaj yeem txhais thiab categorize lub teeb faib nkhaus raws li ob qhov loj me, uas tau txuas ncaj qha mus rau ib qho khoom siv.
Dimension 1: Symmetry
Cov yam ntxwv no txiav txim siab seb lub teeb kis tau zoo li cas nyob ib puag ncig lub teeb ntawm lub hauv paus axis.
| Hom Symmetry | Visual Description | Hom Fixtures | Cov yam ntxwv tseem ceeb & Daim Ntawv Thov Scenarios |
|---|---|---|---|
| Axially Symmetrical (Rotational) | Zoo li lub tais inverted; cov duab nkhaus zoo ib yam nyob rau hauv ib qho ntoo khaub lig-section dhau los ntawm qhov chaw. | Feem ntau cov teeb pom kev zoo, teeb pom kev zoo, siab -bay teeb, qhov muag teev. | Lub teeb kis tusyees nyob rau hauv tag nrho cov kev taw qhia, tsim ib tug centrally symmetric teeb qauv. Haum rau qhov chaw uas xav tau kev teeb pom kev dav dav, xws li warehouses, hallways, general room. |
| Symmetrical (Bi{0}}tom qab) | Zoo li cov txiv ntseej symmetrical lossis batwing duab, symmetrical ntawm ob lub dav hlau loj: C0℃/ 180℃thiab C90℃/ 270℃. | Troffer teeb, vaj huam sib luag teeb, qee cov kab teeb tsa. | Nws muaj qhov sib npaug ntawm qhov sib luag ntawm cov dav hlau tshwj xeeb. Feem ntau hauvchaw ua haujlwm teeb pom kev zoo tsimkom ua tiav siab uniformity ntawm qhov chaw ua hauj lwm thaum tswj glare. |
| Asymmetrical | Lub nkhaus yog txawv skewed rau ib sab, nrog ib tug irregular zoo. | Phab ntsa ntxuav teeb, asymmetric tsom teeb, qee qhov teeb pom kev zoo. | Lub teeb yog txhob txwm tshaj tawm rau ib sab tshwj xeeb. Piv txwv li, phab ntsa washers tusyees graze phab ntsa; txoj kev teeb pom kev ncaj nraim rau txoj kev, tsis yog lub ntuj. |
Dimension 2: Beam Angle
Qhov no yog hais txog lub kaum sab xis uas qhov kev siv lub teeb poob mus rau 50% ntawm qhov siab tshaj plaws nruab nrab siv. Nws yog ib qho ntawm feem ntau intuitive tsis nyob rau hauvkev txhais lus ntawm photometric curves.
| Beam Angle Hom | Kwv yees li. Lub kaum sab xis | Lub Teeb Qauv & Visual Feel | Tej kev siv |
|---|---|---|---|
| Nqaim Beam | < 20° | Me me, concentrated hotspot nrog ib tug ntse txiav -tawm. High pom kev cuam tshuam, tsim kom muaj qhov sib txawv. | Teeb pom kev zoo: Tsev khaws puav pheej nthuav qhia, sculptures, cov hniav nyiaj hniav kub nthuav qhia, kos duab hauv tsev. |
| Nruab nrab Beam | 20℃- 40 degree | Nruab nrab - qhov loj ntawm hotspot nrog kev hloov pauv zoo. Sib npaug accents thiab ambient teeb pom kev zoo. | General Accent Teeb pom kev zoo: khw muag khoom txee, rooj noj mov, saum rooj kas fes hauv tsev. |
| Dav Beam | >40 degree | Loj, mos lub teeb kis nrog qhov muag plooj ciam teb. Muab ib qho, ambient illumination. | Ambient/General Teeb pom kev zoo: Tag nrho qhov chaw teeb pom kev zoo, chav nyob, chav kawm, teeb pom kev hauv chaw ua haujlwm. |
Lus Cim Tseem Ceeb: Cov ntsiab lus ntawm qhov dav, nruab nrab, thiab nqaim tsis yog qhov tseeb lossis tus qauv; manufacturers tej zaum yuav txawv me ntsis. Tus yuam sij yog txiav txim raws li qhov tshwj xeeb lub kaum sab xis tus nqi thiab qhov tseeb ntawm qhov nkhaus.
Technical Deep Dive: Txoj Kev Ncauj Ua Li Cas? Peb Yuav Nyeem Li Cas?
1. Los ntawm Lab mus rau Graph
Lub cim ntawm lub teeb faib nkhaus yog nyob ntawm qhov chaw kuaj pom qhov muag thiab lub goniophotometer. Lub fixture yog mounted nyob rau hauv nruab nrab ntawm ib tug rotating robotic caj npab, thiab ib tug detector ntsuas lub teeb siv los ntawm ntau lub ces kaum (feem ntau ntawm 1℃los yog me me ncua sij hawm) ntawm ib tug virtual sphere. Cov ntaub ntawv loj no tau ua tiav thiab thaum kawg tau muab tso rau hauv ob lub - qhov ntev polar lossis Cartesian cov duab peb pom.
2. Hauv -Kev txhais lus tob ntawm qhov nkhaus
Polar Diagram: Feem ntau intuitive. Lub hauv paus pib sawv cev rau qhov chaw nruab nrab, lub voj voog concentric sawv cev lub teeb siv, thiab lub kaum sab xis sawv cev rau kev coj. Qhov deb ntawm qhov nkhaus yog los ntawm qhov chaw, qhov muaj zog lub teeb siv nyob rau hauv qhov kev coj ntawd. Beam dav thiab symmetry yog txheeb xyuas ntawm ib nrais muag.
Cartesian daim duab: Ntau qhov tseeb. Kab rov tav axis yog lub kaum sab xis (0℃-180 degree), thiab ntsug axis yog lub teeb siv. Ua kom yooj yim nyeem ntawv ntawm qhov tseem ceeb ntawm txhua lub kaum ntse ntse, tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau kev txheeb xyuas asymmetric faib.
Yuav Nrhiav Dab Tsi:
Peak Intensity: Qhov siab tshaj plaws ntawm qhov nkhaus txiav txim siab qhov nruab nrab qhov ci.
Beam Angle: Nrhiav cov ntsiab lus sib xws rau 50% ntawm qhov siab tshaj plaws thiab sau lub kaum sab xis ntawm lawv.
Lub teeb qauv Uniformity: Qhov siab ntawm qhov nkhaus qhov qhovntsej thiaj tsis mob. Ib qho kev poob siab txhais tau hais tias kev txiav nyuaj dua -tawm; ib tug softer nqes hav txhais tau tias ib tug softer hloov.
Secondary Peaks/Spill Light: Xyuas seb qhov nkhaus puas muaj lub pob me me thib ob, uas yuav qhia tau tias lub teeb tsis xav tau.
Vim li cas thiaj tseem ceeb? - Los ntawm "Xaiv" mus rau "paub"
Mastering lubLub Teeb Distribution Curvetxhais tau tias txhim kho koj lub teeb pom kev zoo tsim los ntawm "kev kwv yees los ntawm kev paub" mus rau "kev twv los ntawm cov ntaub ntawv."
Ua tiav Lub Hom Phiaj Tsim: Xav ua kom pom tseeb? Xaiv lub nqaj nqaim. Koj puas xav tau ib qho chaw ua haujlwm zoo sib xws? Xaiv ib tug troffer nrog ib tug batwing tis. Txhua yam yog txhawb los ntawm cov ntaub ntawv.
Zam Txim Hluav Taws Xob: Lub teeb ncaj qha ncaj qha rau thaj chaw uas xav tau kev teeb pom kev zoo, tiv thaiv "lub ntuj ci" lossis teeb pom kev tsis zoo ntawm phab ntsa. Qhov no ncaj qha txhim kho kev ua tau zoo thiab txuag lub zog thiab nyiaj txiag.
Tswj Glare: Qhov nkhaus tso cai rau koj los kwv yees los ntawm qhov pom cov kaum sab xis ntawm qhov chaw teeb pom kev zoo heev (high luminance) tuaj yeem pom, ua rau koj zam qhov no los ntawm kev xaiv cov khoom siv nrog kev tiv thaiv tsim nyog lossis los ntawm kev kho qhov chaw mounting.
Kev simulation: Kev teeb pom kev zoo tsim software (xws li Dialux) tso siab rau qhov kev sib tw ntawm IES cov ntaub ntawv (muaj cov ntaub ntawv ua tiav cov ntaub ntawv nkhaus) los ua cov kev ntsuas teeb pom kev zoo thiab cov txiaj ntsig simulations, kom ntseeg tau tias koj paub qhov tshwm sim ua ntej qhov project txawm teeb tsa.
FAQ
1. Q: Raws li cov neeg siv khoom tsis tu ncua, thaum kuv yuav lub teeb, cov neeg muag khoom feem ntau tsuas sau cov lumens thiab watts. Cov ntaub ntawv xa tawm lub teeb puas tsim nyog rau kuv?
A: Yog lawm.Lumens (tag nrho cov luminous flux) zoo li tag nrho cov dej hauv lub tank, thaum lubLub Teeb Distribution Curvetxiav txim seb lub faucet ua haujlwm li cas-txawm nws yog lub dav hlau muaj zog lossis cov tshuaj tsuag maj mam. Piv txwv li, ob lub teeb uas muaj tib lub lumen tso tawm tab sis sib txawv ntawm lub kaum sab xis - ib qho ntawm 15℃thiab lwm qhov ntawm 40℃-yuav ua rau muaj qhov sib txawv loj heev thaum ntsia hauv chav nyob qab nthab: yav dhau los tsim teeb pom kev hnyav, me me tsom teeb ntawm lub rooj zaum, thaum tom kawg muab cov teeb pom kev zoo, dav dav. Ua ntej yuav khoom, sim kom tau lossis saib cov khoom lag luam photometric nkhaus, tshwj xeeb tshaj yog rau cov teeb pom kev zoo xws li tsom teeb thiab teeb pom kev zoo.
2. Q: Kuv muaj photometric nkhaus ntawm tes. Kuv yuav ua li cas sai sai qhia qhov twg nws yog qhov zoo tshaj plaws haum rau kev siv?
A: Ua raws li "peb-kab ruam txoj kev": Ua ntej, kos symmetry: Axially / symmetric hom yog haum rau dav dav ambient teeb pom kev zoo; rau hom asymmetric, ua raws cov kev taw qhia ntawm kev tsis ncaj ncees-zoo rau kev ntxuav phab ntsa, grazing, los yog highlighting tej ntsug nto.Qhov thib ob, xyuas lub beam lub kaum sab xis: Narrow beam (<20°) for accent; medium beam (20-40°) for task/area lighting; wide beam (>40 degree) rau ambient teeb.Thib peb, tshuaj xyuas cov duab nkhaus: Ib tug du, tag nrho nkhaus qhia tau hais tias ib tug zoo hloov nyob rau hauv lub teeb qauv; qhov nkhaus nkhaus txhais tau hais tias kev txiav nyuaj -tawm; batwing duab minimizes glare nyob rau hauv txoj kab ntsug, ua rau nws zoo tagnrho rau cov chaw ua haujlwm thiab chav kawm.
3. Q: Dab tsi yog qhov kev sib raug zoo ntawm lub photometric nkhaus thiab isolux (sib npaug illuminance) daim duab peb pom hauv software tsim teeb pom kev zoo?
A:Photometric nkhaus yog qhov"ua rau", thiab daim duab isolux yog tus"cov nyhuv". Photometric nkhaus piav txog qhovfixture nws tus kheejmuaj peev xwm emit teeb nyob rau hauv ntau yam kev qhia. Thaum koj nkag mus rau tus qauv fixture (loading nws cov ntaub ntawv IES), installation txoj hauj lwm, qhov siab, thiab kev taw qhia rau hauv lub software, nws siv lub fixture.lub teeb faib nkhauscov ntaub ntawv, ua ke nrog cov qauv chav tsev, los xam seb lub teeb ntog ntawm lubhom phiaj nto(piv txwv li, rooj, pem teb) thiab pom qhov no raws li cov kab contour ntawm vaj huam sib luag illuminance (isolux kab). Yog li ntawd, tsuas yog nrog qhov tseeb photometric nkhaus yog simulated isolux daim duab txhim khu kev qha rau kev siv.
Lus Cim & Qhov Chaw:
Cov txheej txheem ntsuas thiab cov ntaub ntawv tawm tswv yim rau lub teeb faib nkhaus feem ntau yog raws li kev sib koom ua ke los ntawm International Commission on Illumination (CIE) thiab Illuminating Engineering Society of North America (IESNA): *IESNA LM-63: IES Standard File Format for the Electronic Transfer of Photometric Data*.
Cov ntsiab lus ntawm ntau yam kev nkhaus photometric thiab lawv daim ntawv thov yog tsim los ntawm kev sib tham ntawm kev sib raug zoo ntawm luminaire tis thiab sab hauv tsev teeb pom kev zoo nyob rau hauv lubPhau Ntawv Qhia Teeb pom kev zoo.
Lub ntsiab lus ntawm lub kaum sab xis ntawm lub kaum sab xis (50% ntawm thaj tsam siab tshaj plaws) yog kev lag luam - tus qauv dav, pom nyob rau hauv cov ntaub ntawv dawb thiab cov khoom catalogs los ntawm cov tuam txhab loj thoob ntiaj teb luminaire (xws li Philips, ERCO, iGuzzini).
Kevin Rau
Email: bwzm12@benweilighting.com
Whatsapp: +8619972563753
