Txoj kev loj hlob ntawm LED tuaj yeem raug ntaus nqi los ntawm kev tsim cov xim xiav nti los ntawm Nichia Nyiv hauv xyoo 1993. Qhov tshwm sim ntawm xiav LED tau qhib qhov chaw tshiab ntawm tib neeg teeb pom kev zoo. Nrog txoj kev loj hlob ntawm LED thev naus laus zis, LED cog teeb siv hauv kev cog qoob loo kuj pib lub sijhawm ntawm kev tsim kho tshiab, qhov zoo ntawm LED cog teeb pom kev zoo yog ze rau LED teeb hlaws, yog li yuav ua li cas thiaj li yuav zoo LED teeb hlaws tau dhau los ua qhov tseem ceeb tshaj plaws. Cov kab lus hauv qab no yuav txheeb xyuas txhua yam hauv kev nthuav dav los pab txhua tus kom pom tseeb thiab qhov tob. Nkag siab txog LED, thiab tom qab ntawd xaiv cov LED cog teeb lub teeb hlaws haum rau lub tuam txhab' s khoom.
1. LED txheej txheem ntau lawm
Cov txheej txheem LED nti tsim muaj ob yam, ib qho yog epitaxial wafer kev loj hlob, thiab lwm yam yog chips.
LED epitaxial wafer kev loj hlob thev naus laus zis feem ntau yog siv cov hlau organic chemical vapor deposition (MOCVD) los tsim cov epitaxial wafers nrog semiconductor lub teeb-emitting yam ntxwv. Lub epitaxial wafer yog raw khoom rau kev tsim LED chips. Cov duab hauv qab no qhia txog cov txheej txheem tsim khoom ntawm epitaxial wafer nrog sapphire substrate:
LED nti yog tsim los ntawm epitaxial wafers. Lub nti yog ib qho khoom siv uas muab cov teeb ci LED hlaws ntim. Nws yog qhov yuav tsum tau ua ua ntej rau qhov zoo ntawm LED teeb hlaws. Cov duab hauv qab no qhia txog cov txheej txheem tsim khoom ntawm LED nti:
Lub ntim ntawm LED teeb hlaws dai yog cov txheej txheem tsim khoom ntawm encapsulating nti ntawm cov khoom sib txuas raws li daim ntawv thov yuav tsum tau ntawm LED teeb hlaws. LED ntim txiav txim siab tus nqi-zoo ntawm LED teeb hlaws, uas yog qhov txuas tseem ceeb hauv qhov zoo ntawm LED teeb hlaws. Cov duab hauv qab no qhia txog LED teeb hlaws ntim txheej txheem:
Los ntawm cov txheej txheem tsim khoom ntawm LED saum toj no, nws tuaj yeem pom tias cov txheej txheem tsim khoom ntawm LED yog qhov nyuaj thiab cov ntsiab lus kev ua haujlwm siab. Nyob rau hauv tag nrho cov txheej txheem, tsuav yog ib qhov txuas tsis ua haujlwm, LED teeb hlaws yuav poob zoo thiab kev ua haujlwm zoo.
2. LED technical parameters
Nyob rau hauv cov txheej txheem ntau lawm, tib batch ntawm raw cov ntaub ntawv yuav muaj qhov zoo sib txawv tom qab ntim vim muaj ntau yam vim li cas thaum lub sij hawm ntau lawm txheej txheem. Nws tsis tuaj yeem paub qhov txawv ntawm qhov tsos thiab txheej txheem ib leeg. Kev ntsuas kev txhawb nqa yog xav tau. Rau kev siv cov nroj tsuag teeb, nws yuav tsum tau ua raws li cov nroj tsuag teeb. Spectral parameter ntsuas muaj rau kev yuav khoom.
Cov nroj tsuag teeb yog ib qho khoom parameterized ntawm spectral technology. Lub teeb hlaws rau cov teeb pom kev zoo thiab cov hlaws dai rau cov teeb pom kev zoo yog qhov sib txawv ntawm qhov kev qhia. Lub teeb hlaws tsis tau muab los ntawm cov tuam txhab ntim khoom tam sim no LED tsis tuaj yeem ua tau raws li cov qauv tsim cov cai ntawm cov teeb pom kev zoo. Qhov teeb meem yog tshwm sim los ntawm qhov tshwj xeeb ntawm cog lub teeb spectrum kuaj tshuab thiab cog lub teeb spectrum labeling tsis.
Thaum cov tuam txhab teeb pom kev lag luam yuav cov teeb hlaws, lawv yuav tsum tau hloov cov teeb pom kev zoo ntawm cov teeb hlaws rau hauv cov teeb pom kev zoo ntawm cov teeb hlaws ntawm cov teeb pom kev zoo. Cov txheej txheem kev hloov pauv no yog hu ua spectral parameterization ntawm lub teeb hlaws ntawm cov nroj tsuag teeb. Kev tsim cov khoom lag luam teeb pom kev zoo yuav tsum Siv cov teeb pom kev tsis zoo ntawm cov hlaws dai, txwv tsis pub tus qauv tsim tsis muaj lub hauv paus kom ua tiav.
Lub parameterized qhia ntawm lub teeb hlaws dai yog intuitive heev, xws li:
QE 1.042 / 645nm / 3.28V / 60mA / 2835
Ntau cov khoom lag luam yog cov khoom lag luam parametric, xws li cov duab kos siv hauv computers, thiab lawv cov lus qhia tsis qhia txog kev ua haujlwm thiab tus nqi ntawm daim npav duab.
Hauv qab no yog cov style ntawm LED teeb qhov chaw spectral parameterization
Lub ntsiab tsis zoo ntawm tsob nroj teeb spectral parameterization:
1. Radiation zog:
Lub zog hluav taws xob ntawm LED teeb hlaws yog lub ntsiab lus qhia uas txiav txim siab qhov ua tau zoo ntawm cov teeb pom kev zoo. Lub zog hluav taws xob ntau dua, qhov siab dua ntawm PPF tus nqi ntawm lub teeb hlaws, thiab qhov zoo dua qhov hluav taws xob ua haujlwm ntawm cov teeb pom kev zoo.
Lub zog hluav taws xob ntawm lub teeb hlaws yog cuam tshuam nrog thaj tsam nti. Lub nti cheeb tsam tau txais los ntawm kev sib npaug ntawm qhov ntev thiab qhov dav ntawm lub nti. Qhov loj dua qhov chaw nti, lub zog hluav taws xob ntau dua.
Lub zog hluav taws xob ntawm LED teeb hlaws yog txiav txim siab los ntawm cov hluav taws xob hluav taws xob theem thiab tus nqi ntawm cov nti. Lub zog hluav taws xob ntau dua ntawm cov nti, tus nqi kim dua.
Siv Xiamen San'an' s nti ua piv txwv, S-23BBMUP-C *******, nti loj yog 23X10mil, cov tub ntxhais no muaj 4 hluav taws xob hluav taws xob theem (@20mA).
Lub zog hluav taws xob sib txawv ntawm D24 thiab D27 yog 8mW, uas yog hais tias, PPF tus nqi ntawm lub teeb hlaws rau tib lub nti yog txawv, yog li koj yuav tsum paub txog cov hluav taws xob hluav taws xob theem ntawm cov nti thaum yuav khoom.
2. Kev siv hluav taws xob
LED teeb hlaws tau muab faib ua qib zog raws li qhov tshwj xeeb tam sim no. Qhov loj dua qhov tshwj xeeb tam sim no, lub zog siab dua lub nti tuaj yeem tiv taus, tab sis ntau dua qhov kub ntawm cov nti.
Chips nrog txawv specifications tam sim no yog ntim rau hauv txawv me me specifications, xws li: 2835, 5730, 3030, thiab lwm yam. Kev xaiv ntawm txawv pob specifications yog raws li nyob rau hauv lub tsim yuav tsum tau ntawm cov nroj tsuag teeb qauv. Feem ntau, cov chips tsis muaj zog muaj kev ua haujlwm siab thiab tsis tshua muaj hluav taws xob.
3. Radiation efficiency
Cov hluav taws xob ua haujlwm ntawm lub teeb hlaws=hluav taws xob hluav taws xob / hluav taws xob noj * 100%, cov hluav taws xob hluav taws xob tsawg dua 100%.
Cov hluav taws xob ua kom pom tseeb qhia qhov feem ntawm cov hluav taws xob hluav taws xob tsim los ntawm txhua watt ntawm hluav taws xob siv. Qhov loj dua qhov hluav taws xob efficiency, qhov zoo dua.
Radiation efficiency yog txwv los ntawm cov khoom siv hluav taws xob semiconductor, nrog rau kev ntim khoom thiab cov tshuab hluav taws xob cua sov. Cov laj thawj tseem ceeb cuam tshuam rau kev siv hluav taws xob hluav taws xob yog:
Qhov cuam tshuam ntawm chip manufacturing zoo: cov khoom siv sib txawv thiab cov cuab yeej siv hluav taws xob cuam tshuam rau cov hluav taws xob hluav taws xob ntawm cov nti, thiab nws yog ib txoj hauv kev zoo los xaiv cov khoom lag luam nti.
Cov khoom siv bracket: tam sim no nyob rau hauv kev ua lag luam muaj txhuas brackets, tooj dag brackets, tooj liab brackets, thiab lwm yam., aluminium brackets yog cov pheej yig tshaj, tooj liab brackets yog kim tshaj, txawm lub tooj liab brackets, qhov zoo ntawm cov nyiaj plating kuj txawv; cov ntaub ntawv ntim kuj suav nrog ntau yam kev kho thiab sau cov kua nplaum zoo.
Qhov zoo ntawm lub teeb dawb thiab tsis tshua muaj lub ntiaj teb txheej txheem teeb hlaws kuj cuam tshuam los ntawm qhov zoo ntawm phosphorus. High-zoo phosphors muaj lub teeb pom kev tsis zoo; Dawb lub teeb phosphors feem ntau muab faib ua aluminates thiab silicates. Kev ua tau zoo ntawm aluminate zoo dua li silicate, txhuas tus neeg sawv cev ntawm acid ntsev yog YAG. YAG muaj kev ua haujlwm ruaj khov thiab tsis muaj teeb pom kev zoo. Cov tshuaj lom neeg ruaj khov ntawm silicate nws tus kheej tsis zoo, tab sis qhov ci ntsa iab siab dua YAG.
Cov khoom siv sib txuas hlau: Tsuas yog flip nti thiab CSP ntim, feem ntau ntawm lub teeb hlaws ntim khoom siv cov khoom siv kub hlau los txuas cov nti thiab cov electrode ntawm lub bracket. Tam sim no, muaj ob hom alloy hlau thiab ntshiab kub hlau nyob rau hauv kev ua lag luam. Ntshiab kub hlau zoo dua, cov hlau kub muab faib ua 0.7, 0.9, 1.0, 1.2, thiab lwm yam raws li qhov tuab. Qhov tuab ntawm cov hlau kub, qhov qis ntawm pawg cua sov thiab lub teeb lub neej ntev dua.
4. PPF tus nqi: PPF ntawm lub teeb hlaws yuav tsum tau muab xam los ntawm software tshwj xeeb. Lub zog ntawm lub teeb cog yog txiav txim siab raws li tus nqi PPF ntawm LED teeb hlaws. Yog tias lub tuam txhab ntim khoom tsis tuaj yeem muab PPF tus nqi ntawm lub teeb hlaws, nws yuav tsis yog ib qho tsim nyog cog Teeb teeb hlaws dai khoom.
5. MPF tus nqi: qhov ntsuas tus nqi ntawm photon flux nrog wavelength nyob rau hauv thaj tsam ntawm 380nm-800nm, unit umol / s, rau monochromatic teeb hlaws, MPF=PPF, rau cov hlaws hlaws teeb encapsulated nrog phosphor, MPF tus nqi yog ntau dua li PPF. tus nqi, Qhov kev qhia parameter ntawm phosphor ntim cov hlaws dai yuav tsum tau cim nrog ob qhov tsis muaj MPF thiab PPF tib lub sijhawm.
6. QE tus nqi: QE tus nqi yog tus nqi PPF ib watt. Nws yog ib qho parameter muab tau los ntawm cov spectral tsis ntawm cov nroj tsuag teeb hlaws. Chav tsev yog umol/J. Qhov kev ntsuas no yog qhov kev ntsuas dav dav ntawm cov nroj tsuag teeb hlaws dai thiab qhov tseem ceeb tshaj plaws kev sib piv Performance index. , QE tus nqi yog ib qho parameter uas yuav tsum tau cim tom qab lub teeb hlaws spectrum yog parameterized. Qhov tseeb ntawm QE tus nqi cuam tshuam rau qib kev ua haujlwm ntawm lub teeb hlaws' s spectrum test, thiab ntsuas qhov yuam kev yuav ua rau QE tus nqi yuav raug cuam tshuam.
7. Radiation ratio: Qhov kev sib raug zoo ntawm txhua qhov hluav taws xob nyob rau hauv lub waveband uas tau hais tseg yog qhia nyob rau hauv ob txoj kev.
Cov ntsiab lus hluav taws xob: qhov feem pua ntawm ib qho waveband rau tag nrho cov hluav taws xob. Cov ntsiab lus hluav taws xob yog qhov hnyav ntawm qee qhov waveband rau tag nrho cov hluav taws xob.
Radiation ratio: qhov sib piv ntawm ob pawg, qhov hluav taws xob piv yog qhov hnyav ntawm ib leeg, feem ntau R: B thiab R: FR.
Qhov sib piv hluav taws xob tsuas yog siv tau rau lub teeb dawb thiab lub ntiaj teb tsis tshua muaj txheej txheem teeb hlaws, thiab tsis muaj hluav taws xob piv rau lub teeb monochromatic.
8. Voltage division specification: nws yog qhov voltage faib ntawm cov nti, xws li 3.0V-3.15V. Rau cov teeb pom kev zoo sib txuas hauv series thiab sib npaug, qhov sib faib hluav taws xob yog tswj tsis pub dhau 0.15V, kom qhov tam sim no faib ntawm txhua txoj hlua ntawm lub teeb ci, uas yog qhov zoo los txhim kho lub teeb lub neej.
9. Kev faib tawm xim kub: Rau cov xim sib cais siv cov hlaws dawb lub teeb, lub Hoobkas ntim yuav tsum muab BIN code ntawm cov xim kub. Lub teeb dawb rau cov teeb pom kev zoo muaj qhov yuav tsum nruj me ntsis rau kev sib cais xim, thiab kev siv xim BIN tuaj yeem tsim nyog so.
3. Cov cai ntsuam xyuas
1. Kev soj ntsuam cov cai rau cov spectral parameters ntawm lub teeb hlaws dai
Qhov hluav taws xob efficiency ntawm lub teeb hlaws yog lub hauv paus ntawm spectral tsis. Raws li tib lub zog hluav taws xob, qhov sib piv ntawm PPF, MPF, thiab QE yog qhov tseem ceeb.
QE yuav zoo li hloov pauv raws li cov ntsiab lus ntawm lub teeb ntsuab hluav taws xob nce ntxiv. Rau cov hlaws teeb monochromatic, qhov loj dua QE, qhov zoo dua.
Tam sim no, QE ntawm LED teeb hlaws tsis tau tshaj 2.2umol / J. QE parameter ntawm ib qho kev ntsuas ntsuas yog nyob ze rau qhov kev txwv saum toj no, thiab qhov yuam kev ntawm txoj kev sim thiab cov ntaub ntawv ntsuas yuav tsum tau ntsuas.
Nyob rau hauv lub neej yav tom ntej, thaum QE ntawm LED teeb hlaws hlaws tshaj 2.2umol / J, LED cog teeb yuav nkag mus rau tag nrho-scale daim ntawv thov ib puag ncig, thiab lwm yam teeb pom kev zoo yuav maj mam thim tawm ntawm daim ntawv thov. Cov nroj tsuag lub teeb spectrum thev naus laus zis yuav ua tiav QE ntawm 3.0umol / J raws li lub hom phiaj tshawb fawb hauv ob peb xyoos tom ntej.
2. Cov cai rau daim ntawv thov ntawm LED teeb hlaws hauv cov teeb pom kev zoo
Cov tsav tam sim no ntawm LED teeb hlaws yog qhov zoo tshaj plaws kom tsis txhob tshaj qhov tam sim no. Tam sim no nti tam sim no specification yog nyob ze rau lub sab sauv txwv ntawm lub nti' s kam rau ua, txawm hais tias tus tsav tam sim no yuav tsum tau nce los ntawm kev txhim kho cov cua kub dissipation kom tau ib tug ntau dua PPF tus nqi. Nyob rau tib lub sijhawm, lub teeb hlaws Lub zog ntawm PPF kuj nce, thiab qhov nce ntawm PPF thiab lub zog tsis yog linear, thiab qhov tshwm sim yog tias QE tus nqi txo qis dua.
Cov txheej txheem ntawm qhov tshwm sim no yog tias thaum lub sijhawm tam sim no nce, qhov rov ua dua ntawm cov hluav taws xob thiab qhov qhov txo qis, cov lattice defects ntawm cov nti pib los ua qhov tseem ceeb, cov cua sov ntawm cov nti nce, uas ua rau txo qis ntawm cov hluav taws xob hluav taws xob. nti, thiab qhov nce hauv kev siv hluav taws xob ntau dua li qhov nce hauv PPF. QE tus nqi ntawm cov nroj tsuag teeb poob.
Kev tsim qauv zoo yog nrhiav cov kev daws teeb meem uas nyiam tshaj plaws ntawm qhov ntsuas kub ntawm lub teeb thiab cov hluav taws xob hluav taws xob, es tsis txhob siv lub tshuab hluav taws xob kim los ua kom lub zog ntawm lub teeb, qhov tshwm sim feem ntau yuav txo qis QE Performance index tom qab nce lub zog. zog.
Nws yog ib qho tshwm sim uas kuv feem ntau pom ua cov hlaws zoo teeb rau hauv cov khoom tsis zoo. Qee cov teeb pom kev zoo siv QE1.3 ntawm lub teeb hlaws los ua QE0.8 ntawm cov teeb pom kev zoo. Yog tias QE ntawm cov nroj tsuag teeb qis dua 0.7, kuv xav kom hloov nws. Nrog pheej yig teeb pom kev zoo, cov teeb meem no tshwm sim vim lub tuam txhab tsis tau tsim lub tswv yim ntawm spectral parameterization.
Tswv yim: Los ntawm kev txo cov tsav tam sim no ntawm lub teeb hlaws yog txoj hauv kev zoo kom tau txais QE tus nqi siab dua.
LED teeb hlaws yog cov khoom siv tam sim no. Sim xaiv qhov hluav taws xob qis dua (Vf), uas tuaj yeem nce QE tus nqi raws li. Ib qho qis Vf kuj tuaj yeem txo cov cua sov ntawm lub teeb hlaws. High-power cog teeb yog qhov tseem ceeb tshwj xeeb rau kev xaiv ntawm Vf.
Cov hluav taws xob ua haujlwm ntawm lub teeb hlaws txiav txiav cov nqi calorific ntawm cov nroj tsuag teeb. Lub zog cua sov ntawm lub teeb hlaws=(1-kua hluav taws xob efficiency piv) * hluav taws xob fais fab.
Lub zog hluav taws xob tiag tiag ntawm lub teeb hlaws tuaj yeem kuaj thiab suav kom paub tseeb tias tus nqi hluav taws xob hluav taws xob puas yog.
Nyob rau hauv lub premise ntawm lub peev xwm los tsim lub spectrum, lub discontinuous spectrum nrog tus piv ntawm monochromatic teeb hlaws yuav tsum guaranteed nyob rau hauv lub teeb attenuation Performance index. Thaum siv cov hlaws dai txuas ntxiv mus, ob qho tib si lub teeb lwj index thiab xiav hloov qhov ntsuas yog thawj yam uas yuav tsum tau xav txog. Txawm li cas los xij, tus nqi ua tau zoo ntawm kev txuas ntxiv spectrum teeb hlaws yog qhov zoo.
Lub spectrum tsis tu ncua yuav tsum tau them sai sai rau cov ntsuas ntawm R: B thiab R: FR. Nyob rau tib lub sijhawm, lub teeb ntsuab ntau dhau yuav ua rau QE distortion.
Qhov ntsuas ntsuas ntawm lub teeb hlaws yog txwv los ntawm qhov txwv tsis pub. Ib qho kev xeem cov ntaub ntawv nyob ze rau qhov txwv tsis pub yuav tsum tau soj ntsuam los ntawm lub koom haum ntsuam xyuas kev tshaj lij, uas tsis tuaj yeem ntseeg tau yooj yim.
Qhov txawv txav ntawm LED teeb hlaws ntsuas ntsuas qhov ntsuas yog tsuas yog los saib xyuas cov hluav taws xob hluav taws xob thiab QE tus nqi. Tus nqi QE yog qhov nkag siab zoo, thiab qhov txawv txav ntawm ob qhov ntsuas no yuav tsum tau rov ntsuas dua.
Kuv txhawj xeeb tshaj plaws txog kev ntsuas qhov yuam kev thiab tus qauv tsis raug ntawm LED nti. Kuv ib txwm hais tias cov teeb pom kev zoo yog cov khoom lag luam parameterized. Cov nroj tsuag lub teeb muag cov spectral tsis, thiab cov spectral tsis yog distorted, yog li ntawd cog cov nyhuv yog tsis yooj yim sua los tham txog.
Rau kev ntsuas qhov tsis raug thiab cov qauv ntsuas virtual, kuv qhov kev xav tsim qauv spectrum teeb tsa qhov txuas kom pom, uas yog, XD yam. Los ntawm XD yam, peb tuaj yeem ntsuas tus nqi illuminance thiab siv XD yam hloov mus rau PPFD. Qhov PPFD no tuaj yeem siv los txheeb xyuas seb QE puas yog lossis tsis yog, qhov no yog lub ntsiab lus tshiab ntawm peb cov nroj tsuag lub teeb spectrum technology. Qhov kev xav kaw-loop tsim kev ntseeg tau ntau dua kom ntseeg tau qhov tseeb ntawm cov nroj tsuag teeb pom kev zoo' s spectral tsis.
3. Tus nqi-zoo ntawm kev yuav khoom LED teeb hlaws dai
Rau kev yuav khoom ntawm lub teeb hlaws, qhov kev txhawj xeeb tshaj plaws yog qhov kev ua tau zoo ntawm cov hlaws teeb. Feem ntau, tib neeg sib piv cov nqi ntawm cov pob khoom zoo sib xws. Peb muab cov qauv kev suav rau tus nqi ntawm cov hlaws dai kom yooj yim sib piv qhov zoo thiab qhov tsis zoo ntawm cov nqi khoom.
Tus nqi / kev ua tau zoo ntawm lub teeb hlaws=QE / nqe, uas sawv cev rau QE tus nqi ntawm chav tsev nqi.
Kev ua tau zoo tus nqi, uas txhais tau hais tias tus nqi QE tau txais los ntawm ib chav tsev yog qhov loj
Rau cov pob SMD, cov ces kaum raug pom zoo rau tus nqi.
Rau COB ntim, tus nqi raug pom zoo kom nyob hauv yuan.
Tom qab ua tiav cov ntsiab lus kev paub saum toj no, lub tswv yim parametric ntawm cov teeb pom kev zoo yuav pom tseeb dua. Kuv ntseeg tias nws yuav muaj txiaj ntsig zoo rau kev yuav khoom thiab kev ntsuam xyuas cov teeb pom kev zoo, txhawm rau txhim kho kev lag luam kev sib tw ntawm cov teeb pom kev zoo.
Cog teeb yog cov khoom ntawm spectral technology parameterization. Kev tshaj lij spectral tsis yuav tsum tau siv los piav qhia txog cov khoom lag luam thiab kev lag luam, kom cov khoom cuav thiab cov khoom tsis zoo tsis tuaj yeem ua rau muaj kev nyab xeeb hauv kev lag luam, thiab sib koom ua ke tswj kev noj qab haus huv ntawm cov nroj tsuag teeb pom kev lag luam.
