Tag nrho-spectrum LED thev naus laus zis tau dhau los ua cov lus tsis txaus ntseeg nyob rau xyoo tas los no, tshwj xeeb tshaj yog thaum nws los txog rau lub hnub ci ntuj thiab txhim kho lub teeb zoo. Hauv tsab xov xwm no, peb yuav dhia mus rau hauv lub ntiaj teb ntawm tag nrho cov spectrum LEDs, lawv tuaj txog li cas, lawv ua li cas, thiab lawv siv qhov twg. Peb mam li tham txog yuav ua li cas koj tuaj yeem ua tiav tag nrho cov spectrum LEDs nrog sib txawv nti thiab phosphor sib xyaw ua ke, cov kev sib tw ntawm kev ua rau lawv, thiab seb lawv tau tshwm sim hauv cov khoom xws li rooj teeb, muaj teeb pom kev zoo, thiab txawm cog kev loj hlob teeb. Thaum kawg, peb yuav teb cov lus nug, "Koj puas xav tau lub teeb pom kev zoo tag nrho?" thiab “Yuav ua li cas tag nrho-spectrum teeb pom kev zoo pab koj hauv koj ib puag ncig?”
Lub ntsiab lus ntawm "Full-Spectrum" LEDs
Thaum peb tham txog qhov nrov "full-spectrum" LEDs hnub no, nws yog ib qho tseem ceeb kom paub meej tias "tag nrho-spectrum" txhais li cas. Qhov tseeb "tag nrho-spectrum" yog hais txog lub teeb tawm los ntawm qhov chaw uas npog tag nrho cov spectrum los ntawm ultraviolet (UV), pom lub teeb, mus rau infrared (IR), ua raws li lub hnub ci tag nrho (raws li pom hauv daim duab 1).
Qhov no yog qhov zoo tshaj plaws "tag nrho-spectrum" pom nyob rau hauv qhov xwm txheej. Txawm li cas los xij, "tag nrho-spectrum" LED feem ntau cov neeg tham txog niaj hnub no yog lub ntsiab lus nqaim. Nyob rau hauv cov ntsiab lus ntawm LED, "tag nrho-spectrum" yog hais txog lub teeb emission nyob rau hauv lub teeb pom kev zoo uas zoo li lub spectrum ntawm lub hnub ci nyob rau hauv tib qhov ntau (raws li qhia nyob rau hauv daim duab 2).
Cov khoom siv ultraviolet thiab infrared tsis suav nrog, feem ntau yog ua kom tag nrho cov spectrum LEDs ua tau zoo rau ntau lawm. Ntxiv UV thiab IR yuav cuam tshuam rau tag nrho cov ntim ntim thiab daim ntawv thov, ua rau cov khoom loj thiab kev siv tswv yim yuav luag tsis yooj yim sua. Txawm hais tias tsuas yog pom cov spectrum suav nrog, nws tsis yooj yim rau kev ua tiav puv spectrum LEDs. Piv txwv li, kom ua tiav qhov siab Xim Rendering Performance index (CRI) ze rau 100, ntau lub tuam txhab tawm tsam los txhim kho CRI ntawm 96 txog 98, cia nyob ib leeg ua tiav 99 lossis siab dua.
Daim duab 1: Tag nrho spectrum ntawm lub hnub ci (280nm-4000nm)
Daim duab 2: Hnub ci spectrum nyob rau hauv qhov pom ntau yam (380nm-780nm)
Yuav ua li cas kom tau txais Full-Spectrum LEDs
Hauv txoj kev xav, muaj ob txoj hauv kev tseem ceeb kom ua tiav cov spectrum LEDs: ib qho yog siv cov chips thiab lwm qhov yog siv phosphors. Ntawm lub nti sab, muaj ob txoj hauv kev tseem ceeb: ib qho yog lub nti ua kom muaj phosphor, thiab lwm yam yog siv cov nti ib leeg tsis muaj phosphor. Nyob rau sab phosphor, koj yuav tsum tau ua ke cov phosphor nrog cov nti, thiab koj yuav tsum xaiv qhov sib txawv emissions thiab excitation wavelengths rau kev sib xyaw. Nyob rau hauv tag nrho, muaj plaub txoj hauv kev tseem ceeb kom ua tiav tag nrho-spectrum LEDs:
1. Ib leeg-band Blue Chip Exciting Phosphors
Txoj kev no zoo ib yam li cov khoom ntim LED zoo tib yam, tab sis muaj ntau yam phosphors ntxiv (xws li ntsuab, daj, liab, lossis txawm txiv kab ntxwv, cyan, xiav). Txawm hais tias qhov no tuaj yeem tsim lub teeb ze rau tag nrho-spectrum, tseem muaj lub teeb xiav tseem ceeb kawg. Tsis tas li ntawd, qhov ua tau zoo ntawm phosphors zoo li cyan thiab xiav yog qhov tsawg, thiab lub teeb nyob rau hauv 470-510nm ntau yam yuav ploj mus.
2. Dual-band lossis Triple-band Blue Chip Exciting Phosphors
Txoj kev no txhim kho txoj hauv kev ib leeg los ntawm kev siv dual-band lossis triple-band xiav nti kom zoo siab phosphors thoob plaws qhov sib txawv wavelengths. Lub dual-band chips feem ntau siv ob hom: 430-450nm thiab 460-480nm, thaum lub triple-band chips siv peb: 430-440nm, 440-460nm, thiab 460-480nm. Qhov no tso cai rau kev hloov pauv ntau dua hauv kev sib txuas cov chips nrog phosphors kom zoo dua qub nrog lub hnub ci spectrum (raws li qhia hauv daim duab 3). Nrog rau txoj hauv kev no, CRI tuaj yeem tshaj 98. Txawm li cas los xij, txoj kev no yuav tsum muaj ntau yam phosphors, ua rau nws nyuaj rau kev ua kom zoo sib xws thiab ruaj khov thaum lub sijhawm tsim khoom loj.
Daim duab 3: Spectrum ntawm dual-band thiab triple-band xiav lub teeb puv-spectrum LEDs (rau kev siv)
3. UV Chip Exciting Phosphors
Txoj kev no muaj kev ua haujlwm qis dua. Qhov laj thawj tseem ceeb yog tias feem ntau cov khoom lag luam muaj phosphors yog tsim los ua haujlwm nrog xiav chips, tsis yog UV chips, yog li lawv cov excitation efficiency yog qis dua nyob rau hauv UV ntau. Tsis tas li ntawd, UV chips feem ntau yog los ntawm 385-405nm, uas kuj muaj kev ua haujlwm qis dua. Txawm hais tias UV chips tuaj yeem ua kom zoo dua ntawm lub hnub ci spectrum thiab zam kom tsis txhob muaj lub teeb xiav luv luv (raws li pom hauv daim duab 4), txoj kev no muaj qhov tsis zoo. Piv txwv li, UV chips ua rau muaj kev cuam tshuam loj dua ntawm phosphors nyob rau lub sijhawm, ua rau muaj xim hloov thiab xim kub. UV teeb kuj ua rau cov khoom siv organic zoo li encapsulants, txo cov LED lub neej ntev.
Daim duab 4: Spectrum ntawm UV tag nrho-spectrum LEDs (rau kev siv)
4. Multi-chip Combination Method
Txoj kev no muab cov chips emitting xiav, cyan, ntsuab, daj, thiab lub teeb liab kom ua tiav tag nrho cov spectrum. Thaum qhov no tuaj yeem ua haujlwm hauv txoj kev xav, nws tsis tshua siv vim muaj ntau qhov kev sib tw. Rau ib qho, chips emit lub teeb nrog nqaim bandwidths, ua rau nws nyuaj rau ua tiav qhov dav spectrum uas phosphors muab. Tsis tas li ntawd, qhov ua tau zoo ntawm cov xim sib txawv ntawm cov xim sib txawv heev, ua rau nws nyuaj rau kev sib npaug ntawm cov teeb pom kev zoo. Nyob rau tib lub sijhawm, kev hloov xim thiab qhov kub thiab txias kuj tseem tuaj yeem tshwm sim vim qhov sib txawv degradation tus nqi ntawm cov chips.
Txhawm rau muab qhov sib piv kom pom tseeb, cov lus hauv qab no qhia txog plaub txoj hauv kev ua kom tiav tag nrho-spectrum LEDs:
| txoj kev | efficiency | CRI | nqi | Kev ntim khoom nyuaj | Zuag qhia tag nrho Performance | Hom Kev |
| Ib leeg-band Blue Chip Exciting Phosphors | High | ntsis | Tsawg | Tsawg | Zoo | Chip Excites Phosphors |
| Dual / Triple-band Blue Chip Exciting Phosphors | High | High | ntsis | ntsis | Zoo heev | Chip Excites Phosphors |
| UV Chip Exciting Phosphors | Tsawg | High | High | Tsawg | Txom nyem | Chip Excites Phosphors |
| Multi-chip Combination | Tsawg | High | High | Tsawg | Txom nyem | Chip (Tau Ntxiv Phosphors) |
Daim ntawv thov ntawm Full-Spectrum LEDs
Tam sim no peb tau hais txog txoj hauv kev kom ua tiav tag nrho-spectrum LEDs, peb tuaj yeem siv lawv li cas? Ib qho tseem ceeb xav txog yog xim kub. Lub hnub hloov pauv txhua hnub thiab thoob plaws lub caij. Piv txwv li, lub xim kub Thaum lub hnub sawv nyob ib ncig ntawm 2000K, thaum tav su nws nyob ib ncig ntawm 5000K, thiab thaum hnub poob nws yog 2300K. Yog li ntawd, tag nrho-spectrum LEDs yuav tsum tau tsim los ua kom pom cov teeb pom kev zoo sib xws ntawm cov xim sib txawv, uas tuaj yeem ua tiav siv cov txheej txheem tau piav qhia saum toj no.
Raws li cov lus piav qhia saum toj no, tag nrho-spectrum LEDs tuaj yeem siv tau ze li txhua qhov teeb pom kev zoo, xws li teeb pom kev hauv tsev, sab nraum zoov teeb pom kev zoo, industrial teeb pom kev zoo, rooj teeb, tag nrho spectrum coj strips thiab txawm cog teeb pom kev zoo. Cov ntawv thov tshwj xeeb yog nyob ntawm tus nqi thiab kev lees paub ntawm cov neeg siv khoom. Tam sim no, lub rooj teeb lub rooj yog cov ntawv thov feem ntau, feem ntau ua lag luam raws li lub teeb xiav xiav, tiv thaiv qhov muag, thiab xim-kub adjustable. Cov teeb no raug nqi siab dua li cov teeb pom kev zoo. Kev sib piv ntawm Suav cov qauv hauv lub tebchaws thiab "cov ntawv pov thawj puv spectrum" CRI yuav tsum tau qhia hauv Table 2. Raws li pom hauv lub rooj, Suav teb tus qauv rau lub rooj teeb tuaj yeem ua tau yooj yim los ntawm cov teeb pom kev zoo tib yam LED, thaum lub teeb pom kev zoo tag nrho. daim ntawv pov thawj xav tau kev ua haujlwm siab dua.
Table 2: CRI Sib piv rau lub rooj teeb
| Standard | Full-Spectrum Certification |
| Standard Number & Lub npe | GB/T 9473-2022 "Kev Ua Tau Zoo rau Kev Nyeem Ntawv thiab Sau Teeb" |
| CRI Requirements | General CRI: Ra ≥ 80 |
| Tshwj xeeb CRI: R9> 0 |
xaus
Raws li cov lus qhia saum toj no rau tag nrho-spectrum LED thev naus laus zis, peb, uas yog cov kws tshaj lij hauv kev lag luam, yuav tsum xav txog: Puas yog tam sim no "tag nrho-spectrum" lub teeb qhov chaw uas tib neeg xav tau tiag tiag? Thov koj xav email rau kuv lossis tawm lus rau kev sib tham ntxiv!
