Ubuchwepheshe be-LED obugcwele i-spectrum sebuphenduke undabuzekwayo eminyakeni yamuva, ikakhulukazi uma kuziwa ekulingiseni ukukhanya kwelanga okungokwemvelo kanye nokuthuthukisa ikhwalithi yokukhanya. Kulesi sihloko, sizongena emhlabeni wama-LED agcwele, ukuthi avela kanjani, enziwa kanjani, nokuthi asetshenziswa kuphi. Sizokhuluma ngokuthi ungawathola kanjani ama-LED ane-spectrum egcwele ngenhlanganisela ehlukene ye-chip ne-phosphor, izinselelo zokuwenza, nokuthi avela kanjani emikhiqizweni efana nezibani zedeski, ukukhanyisa kwezimboni, ngisho nezibani zokukhula kwezitshalo. Ekugcineni, sizophendula umbuzo othi, “Ingabe uyakudinga ngempela ukukhanyiswa kwe-full spectrum?” futhi “Kungenzeka kanjani ukukhanya okugcwele kwe-spectrum uyakusiza endaweni okuyo?"
Incazelo yama-LED "agcwele-Spectrum".
Uma sikhuluma ngama-LED “agcwele-spectrum” adumile namuhla, kubalulekile ukucacisa ukuthi kusho ukuthini “i-full-spectrum”. Iqiniso elithi “full spectrum” libhekisela ekukhanyeni okuphuma emthonjeni okumboza yonke i-spectrum kusukela ku-ultraviolet (UV), ukukhanya okubonakalayo, kuya ku-infrared (IR), okulingisa i-spectrum egcwele yokukhanya kwelanga (njengoba kubonisiwe kuMfanekiso 1).
Lona "i-spectrum egcwele" ebanzi kakhulu etholakala emvelweni. Kodwa-ke, i-LED "i-full-spectrum" abantu abaningi abakhuluma ngayo namuhla iyincazelo encane. Kumongo we-LED, "i-spectrum egcwele" ibhekisela ekukhanyeni okukhishwa ngaphakathi kwebanga lokukhanya elibonakalayo elicishe lifane ne-spectrum yokukhanya kwelanga kulolo bubanzi obufanayo (njengoba kuboniswe kuMfanekiso 2).
Izingxenye ze-ultraviolet kanye ne-infrared azifakiwe, ikakhulukazi ukwenza ama-LED ane-spectrum egcwele abe nokwenzeka ekukhiqizeni ngobuningi. Ukwengeza i-UV ne-IR kuzohlanganisa lonke uhlelo lokupakisha nokusetshenziswa, kwenze ukukhiqizwa okukhulu nokusetshenziswa okungokoqobo kucishe kungenzeki. Noma kufakwe i-spectrum ebonakalayo kuphela, akulula ukuzuza ama-LED agcwele spectrum. Ngokwesibonelo, ukuze uthole okusezingeni eliphezulu inkomba yokunikeza umbala (CRI) cishe ku-100, izinkampani eziningi ziyazabalaza ukuthuthukisa i-CRI isuka ku-96 iye ku-98, ingasaphathwa yokuzuza ama-99 noma ngaphezulu.
Umfanekiso 1: I-spectrum egcwele yokukhanya kwelanga (280nm-4000nm)
Umfanekiso 2: I-spectrum yokukhanya kwelanga phakathi kwebanga elibonakalayo (380nm-780nm)
Ungawathola Kanjani Ama-LED Agcwele I-Spectrum
Ngokombono, kunezindlela ezimbili eziyinhloko zokufinyelela ama-LED agcwele-spectrum: eyodwa iwukusebenzisa ama-chips kanti enye iwukusebenzisa ama-phosphors. Ohlangothini lwe-chip, kunezindlela ezimbili eziyinhloko: eyodwa iyi-chip ethokozisayo i-phosphor, kanti enye isebenzisa i-chip iyodwa ngaphandle kwe-phosphor. Ohlangothini lwe-phosphor, udinga ukubhangqa ama-phosphors ne-chip, futhi udinga ukukhetha ama-wavevel ahlukile wokukhipha kanye ne-excitation yenhlanganisela. Sekukonke, kunezindlela ezine eziyinhloko zokufinyelela ama-LED agcwele-spectrum:
1. I-Single-band Blue Chip AmaPhosphor Ajabulisayo
Le ndlela ifana nokupakishwa kwe-LED evamile, kodwa kunezelwa ama-phosphor amaningi (isb., eluhlaza, ophuzi, obomvu, noma owolintshi, o-cyan, oluhlaza okwesibhakabhaka). Nakuba lokhu kungakhiqiza ukukhanya eduze kwe-spectrum egcwele, kusekhona ukuphakama kokukhanya okuluhlaza okwesibhakabhaka okuvelele. Ngaphezu kwalokho, ukusebenza kahle kwama-phosphors afana ne-cyan noluhlaza okwesibhakabhaka kuphansi uma kuqhathaniswa, futhi ukukhanya kububanzi obungu-470-510nm kungase kungabikho.
2. I-Dual-band noma i-Triple-band Blue Chip AmaPhosphor Ajabulisayo
Le ndlela ithuthukisa indlela yebhendi eyodwa ngokusebenzisa i-chip ye-double-band noma i-triple-band eluhlaza okwesibhakabhaka ukujabulisa ama-phosphor kuwo wonke ubude bamaza ahlukene. Ama-chips ane-dual-band ngokuvamile asebenzisa izigaba ezimbili: 430-450nm kanye no-460-480nm, kuyilapho ama-triple-band chips esebenzisa amathathu: 430-440nm, 440-460nm, kanye no-460-480nm. Lokhu kuvumela ukuguquguquka okwengeziwe ekumataniseni ama-chips namaphosphor ukuze kufane kangcono nokukhanya kwelanga (njengoba kukhonjisiwe kuMfanekiso 3). Ngale ndlela, i-CRI ingadlula i-98. Kodwa-ke, le ndlela idinga izinhlobonhlobo eziningi ze-phosphors, okwenza kube nzima ukuqinisekisa ukuhambisana nokuzinza ngesikhathi sokukhiqiza ngobuningi.
Umfanekiso 3: I-Spectrum ye-dual-band kanye ne-triple-band blue blue-spectrum egcwele ama-LED (ngokwereferensi)
3. UV Chip Phosphors Ejabulisayo
Le ndlela inokukhanya okuphansi kokukhanya. Isizathu esiyinhloko ukuthi ama-phosphor amaningi atholakala ngokwentengiso aklanyelwe ukusebenza nama-chips aluhlaza, hhayi ama-UV chips, ngakho-ke ukusebenza kahle kwawo kwesasasa kuphansi kakhulu ebangeni le-UV. Ukwengeza, ama-UV chips ngokuvamile asukela ku-385-405nm, nawo asebenza kahle kancane. Nakuba ama-chips e-UV engakwazi ukulingisa ngokuseduze i-spectrum yokukhanya kwelanga futhi agweme ukuba khona kokukhanya okuluhlaza okwesibhakabhaka kwe-wavelength emfushane (njengoba kuboniswe kumfanekiso 4), le ndlela inezihibe. Isibonelo, ama-chips e-UV adala ukuwohloka okukhulu kwama-phosphor ngokuhamba kwesikhathi, okuholela ekushintsheni kombala kanye nezinkinga zokushisa kombala. Ukukhanya kwe-UV kulimaza nezinto eziphilayo njengama-encapsulants, kunciphisa Ukuphila kwe-LED.
Umfanekiso 4: I-Spectrum yama-LED agcwele-spectrum e-UV (ukuthola inkomba)
4. Indlela Yokuhlanganisa Ama-chip amaningi
Le ndlela ihlanganisa ama-chips akhipha ukukhanya okuluhlaza okwesibhakabhaka, oku-cyan, okuluhlaza okotshani, okuphuzi, nokubomvu ukuze kutholakale ukukhanya okugcwele. Nakuba lokhu kungasebenza ngombono, akuvamile ukusetshenziswa ngenxa yezinselelo ezimbalwa. Kokukodwa, ama-chips akhipha ukukhanya ngomkhawulokudonsa omncane, okwenza kube nzima ukuthola i-spectrum ebanzi ehlinzekwa yi-phosphors. Ukwengeza, ukusebenza kahle kwama-chips anemibala ehlukene kuyehluka kakhulu, okwenza kube inselele ukulinganisa ukuphuma kokukhanya. Ngokuhamba kwesikhathi, ukushintsha kombala nokushintsha kwezinga lokushisa nakho kungase kwenzeke ngenxa yamazinga ahlukene okuwohloka kwama-chips.
Ukuze unikeze isiqhathaniso esicacile, ithebula elilandelayo lifingqa izindlela ezine zokuzuza ama-LED agcwele spectrum:
| Indlela | Ukuphumelela | I-CRI | Cost | Ubunzima Bokupakisha | Ukusebenza Sekukonke | Uhlobo Lwendlela |
| I-single-band Blue Chip Phosphors Ejabulisayo | High | Lokulingene | ongaphakeme | ongaphakeme | Good | I-Chip Ijabulisa I-Phosphors |
| I-Dual/Triple-band Blue Chip Phosphors Ejabulisayo | High | High | Lokulingene | Lokulingene | Kuhle kakhulu | I-Chip Ijabulisa I-Phosphors |
| I-UV Chip Phosphors Ejabulisayo | ongaphakeme | High | High | ongaphakeme | Kubi | I-Chip Ijabulisa I-Phosphors |
| Inhlanganisela ye-Multi-chip | ongaphakeme | High | High | ongaphakeme | Kubi | I-Chip (Ingeza I-Phosphors) |
Izinhlelo zokusebenza ze-Full-Spectrum LEDs
Manje njengoba sesihlanganise izindlela zokuzuza ama-LED agcwele spectrum, singawasebenzisa kanjani ngempumelelo? Okunye okucatshangelwayo okubalulekile izinga lokushisa lombala. Ukukhanya kwelanga kuyashintsha usuku lonke nasezinkathini zonyaka. Ngokwesibonelo, i ukushisa kombala ekuphumeni kwelanga cishe ku-2000K, emini cishe ku-5000K, futhi ekushoneni kwelanga cishe ku-2300K. Ngakho-ke, ama-LED ane-spectrum egcwele kudingeka aklanywe ukulingisa i-spectrum yokukhanya kwelanga emazingeni okushisa emibala ehlukene, angafezwa kusetshenziswa izindlela ezichazwe ngenhla.
Ngokusekelwe encazelweni engenhla, ama-LED ane-spectrum egcwele angasetshenziswa cishe kunoma iyiphi indawo yokukhanyisa evamile, njengokukhanyisa kwasendlini, ukukhanyisa kwangaphandle, izibani zezimboni, izibani zedeski, imichilo ye-spectrum led egcwele futhi ngisho ukukhanya kwezitshalo. Izinhlelo zokusebenza eziqondile zincike kakhulu enanini nokwamukelwa kwabathengi. Njengamanje, izibani zedeski ziwuhlelo oluvame kakhulu, oluvame ukudayiswa njengokukhanya okuluhlaza okwesibhakabhaka okuphansi, okuvikela amehlo, kanye nezinga lokushisa elilungisekayo. Lezi zibani zinenani eliphakeme kunamalambu ajwayelekile. Ukuqhathaniswa phakathi kwezindinganiso zikazwelonke zaseShayina kanye nezimfuneko ze-CRI "zesitifiketi esigcwele-spectrum" kukhonjiswe kuThebula 2. Njengoba kubonakala kuthebula, izinga lezwe laseShayina lezibani zedeski lingahlangatshezwana kalula nemithombo yokukhanya ye-LED evamile, kuyilapho i-spectrum egcwele. isitifiketi sidinga ukusebenza okuthuthuke kakhulu.
Ithebula 2: Ukuqhathaniswa kwe-CRI Kwezibani Zedeski
| Standard | Isitifiketi Esigcwele I-Spectrum |
| Inombolo Ejwayelekile Negama | I-GB/T 9473-2022 “Izimfuneko Zokusebenza Zokufunda Nokubhala Izibani” |
| Izidingo ze-CRI | I-CRI evamile: Ra ≥ 80 |
| I-CRI ekhethekile: R9 > 0 |
Isiphetho
Ngokusekelwe kulesi singeniso esingenhla sobuchwepheshe be-LED obugcwele, thina, njengezingcweti zemboni, sidinga ukucabanga ngalokhu: Ingabe umthombo wokukhanya wamanje “ogcwele-spectrum” uyinto abantu abayidinga ngempela? Sicela uzizwe ukhululekile ukungithumelela umlayezo noma ushiye amazwana ukuze uthole ingxoxo eyengeziwe!
