Umlando othuthukisiwe wokukhanya kokukhanyisa kwe-LED nokusebenza kahle kokukhanya

Ngo-2006, i-CREE yamemezela ukwethulwa kwe-LED entsha emhlophe epholile, i-“XP.G”, ebeka amarekhodi amasha ngokusebenza kahle okukhanyayo nokukhanya.Uma amandla okushayela angu-350 mA, ukukhanya kwawo kufinyelela ku-139 lm, futhi ukusebenza kahle okukhanyayo ngu-1 kuya ku-lm/W.Ukukhanya nokusebenza kahle okukhanyayo ngokulandelana ku-37% kanye no-53% ngaphezu kwe-XR ekhanyayo ye-Cree.I-ELED, ebizwa ngokuthi “i-LED yokukhanyisa ekhanyayo futhi esebenza kahle kakhulu yomkhakha”.

Ngo-2007, u-Nichia wakhipha uhlobo olusha lwe-LED.Umkhiqizo wokuhlola unokuguquguquka okukhanyayo okufika ku-145 m ngaphansi kwesimo sokuya phambili kwamanje okungu-350 mA, ukusebenza kahle okukhanyayo okungaba ngu-134 lm/w, usayizi wechip ongu-1 m.㎡, kanye nezinga lokushisa lombala elingu-4 988K (esimeni se-Ir=20 mA) , Ukusebenza kahle okukhanyayo kuphezulu njengo-1 69 lm/W).

Ngo-2007, inkampani yaseMelika CREE yakhulisa i-heterojunction ephindwe kabili ku-SIC substrate, futhi amadivaysi akhiqiziwe nawo ayemahle kakhulu.I-substrate ye-SiC ingakha i-electrode yensimbi ye-LED esekelwe ku-Gabl ngaphansi kwe-substrate, futhi yamanje ingageleza iqonde ku-low-resistance conductive substrate, ebuye ibeke isisekelo sokuthuthukiswa kwamanye amadivaysi e-optoelectronic.

Ngawo lowo nyaka, u-Nichia wakhulula isizukulwane esilandelayo sama-LED amhlophe anamandla amakhulu.Ukukhanya okuhambayo okungu-350 mA okokufaka kwamanje kungu-145lm, futhi ukusebenza kahle okukhanyayo kungu-134lm/W.Isizathu sokusebenza kahle okuphezulu kwe-LED emhlophe ukubona ukusebenza kahle okuphezulu kwe-chip ye-LED eluhlaza okwesibhakabhaka esetshenzisiwe.Uma i-LED eluhlaza okwesibhakabhaka ishayelwa ku-350 mA, amandla okukhanya angu-651mW, ubude begagasi bungu-444nm, ukusebenza kahle kwe-quantum yangaphandle ngu-66.5%, kanti i-WPE ingu-60.3%.

Ngawo lowo nyaka, u-Nichia wenza ukukhiqizwa kwama-LED amhlophe asebenza kahle ngokukhanyayo okungu-150 lm/W.Ukusebenza kahle kwale LED kumele izinga eliphezulu embonini ngaleso sikhathi, kanti uhlobo olunamanje ohamba phambili ka-20 mA luyi-1001m/W.

Ekuqaleni kuka-2009, i-CREE yamemezela ukuthi izuze umphumela wokukhanya we-161 lm/W kanye nezinga lokushisa lombala elingu-4 689K.Izimo zokuhlola ezijwayelekile zale LED zenziwa ekamelweni lokushisa kanye nedrayivu yamanje ye-350 mA.

Ekupheleni kuka-2009, i-CREE yamemezela ukuthi ukukhanya kwayo okumhlophe okunamandla aphezulu kwe-LED kufinyelele ku-1 86 lm/W.Imiphumela yokuhlola ye-CREE ibonisa ukuthi uma izinga lokushisa lombala elihlotshaniswayo lingu-4577K, i-LED ingakhiqiza ukukhanya okuphumayo okungu-1971m.Ukuhlolwa kwenziwa endaweni yokuhlola evamile ene-drive current engu-350 mA ekamelweni lokushisa.

Ekuqaleni kuka-2009, ngokwemiphumela yaselabhorethri kaNichia, ukusebenza kahle okukhanyayo kwe-LED kukhuphuke kwafinyelela ku-2491 W ukumelana no-20 mA.Kodwa-ke, endabeni ye-350 mA yamanje evame ukusetshenziswa embonini ye-LED, ukusebenza kahle okukhanyayo kwehle kwafinyelela ku-1451 ukumelana ne-W, okuvuse ukunaka kwemboni.

Ngo-2011, onjiniyela be-R&D bakwa-Osram bathuthukisa ngokuphelele bonke ubuchwepheshe obuhlobene nokukhiqizwa kwe-LED.Ekuhlolweni kwaselabhorethri, ama-LED amhlophe asanda kwakhiwa asetha ukukhanya kwenkampani namarekhodi asebenza kahle kakhulu.Ngaphansi kwesimo esijwayelekile sokusebenza samanje se-350 mA, ukukhanya kwe-LED kungafinyelela ku-1 55 lm, futhi ukusebenza kahle okukhanyayo kuphezulu njengo-1 36 lm/w.I-prototype ye-LED ekhanyayo emhlophe isebenzisa i-1 m㎡chip, izinga lokushisa lombala lokukhanya okukhishiwe ngu-5000K, futhi ukuxhumanisa kwe-chromaticity ngu-0.349/0.393 (cx/cy).

Ngo-2011, i-CREE yamemezela ukuthi ukukhanya kwayo okumhlophe kwe-LED kudlula u-231lm/W.Le nkampani yasebenzisa ingxenye yemojula eyodwa, futhi yakala ukukhanya kwe-LED emhlophe okungama-23llm/W ekushiseni kombala okungu-450OK kanye nezinga lokushisa elijwayelekile legumbi lokuhlola elingu-350mA.Njengamanje, izinkomba ezihlukahlukene ze-LED zisathuthuka okuqhubekayo.Ngokunwetshwa kwezinkambu zokufaka isicelo, izidingo zobuhlalu besibani se-LED ziyahlukahluka kancane kancane.