Emkhakheni wokupakishwa kwe-LED, i-COB imele i-Chip on Board, ubuchwepheshe obuhlanganisiwe bomthombo wokukhanya ongaphezulu obunamathisela ama-chip e-LED ngokuqondile ku-substrate.Umthombo wokukhanya we-LED usebenzisa ubuchwepheshe be-COB, i-chip ihlakaza ngokuqondile ukushisa ku-substrate, imelana nokuminyana kwamandla aphezulu okushisa;ukuhlelwa kwe-chip aminyene, ukuminyana kwamandla aphezulu optical;usayizi womzimba owodwa okhanyayo mncane, ulungele inkambu yokukhanyisa ezohwebo enezidingo eziqinile kusayizi womthombo wokukhanya.Uma kuqhathaniswa nephakheji ye-chip eyodwa Amadivayisi we-LED, iphakheji ye-COB yama-chips amaningi, amalunga amaningi e-solder, ukuminyana kwamandla aphezulu nakho kuholele ekwandeni okubonakalayo kobunzima benqubo yokupakisha.Kungashiwo ukuthi umthombo wokukhanya we-COB ngakolunye uhlangothi yizinhlelo zokusebenza zokukhanyisa kwezohwebo ezihamba phambili, ngakolunye uhlangothi, futhi uyigugu lomqhele wensimu yokupakisha ye-LED.
Umsebenzi oyinhloko womthombo wokukhanya ukukhanyisa, ukuze i-LED yengeze umkhawulo endaweni yokukhanyisa - ukonga amandla, ngakho-ke isigaba sokuqala sokuthuthukiswa komthombo wokukhanya we-COB nawo ekuphishekeleni ukusebenza kahle kokukhanya, ngenxa yomthombo wokukhanya we-COB usebenzisa insimbi. -ibhodi lesifunda elisekelwe noma i-ceramic substrate reflectivity ayilungile njengobakaki ocwecwe ngesiliva, ukukhanya okuphansi okubekwe phezulu ekumuncwani okufanayo kokukhanya phakathi kwama-chips amaningi Ukumuncwa, ukukhanya kwe-COB komthombo wokukhanya okukhanyayo kuphansi kunamadivayisi e-SMD angaphezu kuka-30%, futhi kamuva ukwethulwa kwe-mirror aluminium substrate ukuze kuxazululwe inkinga yokubonakala, kodwa ukumuncwa okufanayo kwama-chips amaningi kusawenza umthombo wokukhanya we-COB ukusebenza kahle okukhanyayo kube ngaphansi kunamadivayisi ahlukahlukene.Nge-chip engaphandle kokusebenza kahle kwe-quantum nokusebenza kahle kokuguqulwa kokukhanya kwe-phosphor, ukusebenza kahle komthombo wokukhanya we-COB kwafinyelela ekwamukelweni kwemboni “kwendawo emnandi” - 100lm / W, ukufika kwale ndawo emnandi kunamadivayisi ahlukahlukene ahlanganiswe umthombo wokukhanya eminyakeni engu-2-3 kamuva.
Ezimweni ezihlukile, ukushintsha izinga lokushisa lombala lomthombo wokukhanya kungaletha umuzwa ongcono wokukhanya.Uma kungekho mkhawulo wesikhala, kulula ukubona ukushintsha kwezinga lokushisa lombala, inqobo nje uma amadivaysi okushisa ombala ophakeme nophansi exubene futhi aqhutshwa ngokuhlukana, ukushintsha kokushisa kombala komthombo wokukhanya we-COB nakho kuwumbono ofanayo, ama-chips angaphakathi. Umthombo wokukhanya we-COB uhlukaniswe ngamaqembu amabili futhi uhlanganiswe nezinhlobo ezahlukene kanye nokugxila kwe-phosphor ehlanganisiwe, ukuze amaqembu amabili ama-chips akhiqize ukukhanya okumhlophe kombala ohlukile.Shintsha usayizi wamanje wamaqembu amabili ama-chips, ungenza umthombo wokukhanya ukhiphe izinga lokushisa lombala ohlukile wokukhanya okumhlophe.usayizi omncane womthombo wokukhanya we-COB, ngemuva kokuba ukukhanya kungakwazi ukubona izinga lokushisa lombala emibili ehlukene yendawo ekhipha ukukhanya, kodwa indawo efanayo ekhipha ukukhanya, okuyinzuzo yomthombo wokukhanya we-COB, kodwa usayizi omncane, kodwa futhi ukukhiqizwa komthombo wokukhanya wokuxuba umbala we-COB kubangele ukudideka okukhulu.Ngemva kweminyaka yokuhlola, ngezakhiwo ezihlukene zama-chip, abantu baye basungula futhi bathuthukisa ubuchwepheshe obuningana njengokuphrinta, ukufutha, nama-chips fluorescent ukuze kuzuzwe isizinda esinqunyiwe kanye nokuhlanganisa okulinganiselwe kwezinhlobo ezahlukene ze-phosphors emithonjeni yokukhanya ye-COB.
Izinhlobo nezilinganiso zezinhlobo ezimbili zeglue ye-fluorescent yombala wokushisa okukhanyayo emthonjeni wokukhanya we-COB wokulungisa umbala kuthuthukisiwe ukuze kufinyelelwe inkomba ebonakalayo ephezulu kanye nokusebenza kahle okuphezulu kokukhanya kulo lonke ibanga lokushintsha umbala.Umfanekiso wesi-2 ubonisa amajika e-spectral okushisa kombala ophakeme nophansi womthombo wokukhanya we-COB oshintsha umbala ohlinzekwa yi-LightSense Semiconductor.I-phosphor yalo mthombo wokukhanya ithuthukisiwe ukuze inkomba yokunikeza umbala ifinyelele ngaphezu kwama-95 kunoma yiliphi izinga lokushisa lombala phakathi nenqubo yokushintsha umbala engu-3000-6000K, futhi inkomba ye-R9, ekhathaza kakhulu, ingaphezu kuka-80.
Ukulungiswa kwezinga lokushisa lombala kunweba inkambu yohlelo lokusebenza yomthombo wokukhanya we-COB, kodwa umbala otholwe kumdwebo wombala we-gamut ungavela kuphela kuzixhumanisi zombala wokushisa ophakeme nophansi kumugqa wamachashazi.Emkhakheni wokukhanyisa kwezentengiselwano, ukusetshenziswa kwezixhumanisi zemibala ehlukene yomthombo wokukhanyisa, ungagqamisa umphumela obonakalayo wemibala ehlukene yezimpahla ukuze uhlangabezane nezidingo zabantu zobuhle, kusukela kuleli phuzu lokubuka, ukulungiswa kokushisa kombala kuphela noma cha ngokwanele, ngo. kuleli cala, enekhono lokulungisa umbala we-gamut womthombo wokukhanya we-COB wazalwa.
Isikhathi sokuthumela: Jun-03-2019