Bi ñuy tàmbali, LED yi lañu daan jëfandikoo ngir wane jumtukaay yi ak kontër yi. Ginaaw loolu ñu tàmbali di jëfandikoo LED yu bari melo ci làmp yi ak ci barab yu yaatu, loolu jur njariñ yu bari ci wàllu koom ak askan wi. Ci misaal, benn làmp bu xonk bu 12{4}} puus ci Etats Unis dafa njëkka jëfandikoo ampoule incandescent bu 140 watt bu yàgg, di génne 2000 lumens ci leer gu weex. Ginaaw ñu jaar ci filtre bu xonk, 90% ci leeraay bi dafa ni mes, 200 lumens ci leeraay bu xonk bi des. Ci leeralam bu bees biñ defar, jëfandikoo nañu 18 LED yu xonk, di lekk 14 watt rek boole ci perte sircuit, ngir génne benn efficacité luminous.
Lamp siñaal oto yi beneen barab bu am solo lañu ci jëfandikoo balluwaayi LED yi. Ci atum 1987, sama réew tàmbali samp làmpu frein yu kawe ci kaw oto yi. Ndax gaawaayu tontu bu gaaw bi LED yi am (niveau nanosecond), dawalkat yi ci topp mën nañu teela yëgal anam wi ñuy dawal, wàññi mbëkkante yi ci ginaaw.
Rax ci dolli, làmp LED yi dañu leen di jëfandikoo ci biti, xonk, wert, ak baxa bu fees melo, làmp-tors yu ndaw yu am porte-clé, ak yeneen barab.
LED yu weex yi: Ngir leeral bu ëpp solo, balluwaayi leeral yu weex ñoo gëna baax. Ñu ngi defar LED yu weex yi ci atum 1998. Ñu ngi defaree LED yooyu ci boole puce GaN ak grenat aluminium yttrium (YAG).
Puce GaN bi dafay génne leer gu baxa (λp{0}}nm, Wd=30nm). Ce{3}}am fosfor YAG, sintere ci tàngoor wu metti, dafay génne leer gu mboq suñu ko excite ci leer gu baxa gi, ak guddaayu onde bu gëna kawe 550nm. Substrat LED bu baxa bi dañu ko monte ci biir benn bool bu am formu reflectif, ñu muur ko ak benn couche de resine bu woyof buñ jaxase ak YAG, lu tollu ci 200-500nm ci yaatuwaayam. Benn ci leeralu baxa bi substrat LED bi di def, phosphor bi dafay xëcci ko, ba noppi dessitu leeralu baxa bi dafay jaxaso ak leeralu nete bi phosphore bi di def ngir génne leer gu weex. Ci LED yu weex InGaN/YAG, soo soppi composition chimique bu phosphor YAG bi nga defar dëgëraay bi ci couche phosphor bi, mën nga am melo yu bari yu leer gu weex ak tàngoor melo yu tàmbalee ci 3500-10000K.
Tablo 1 dafay lim xeeti LED yu weex yi jàppandi fi mu nekk ak seeni sàrti leeraay-. Tablo bi dafay wane itam ni yenn xeeti balluwaayi LED yu weex yi dañu sukkandikoo ci ñeenti phosphores: ñetti melo yu njëkk -rare -fosphores yu xonk, wert, ak baxa -ak phosphore bu mboq bu am jëmmu grenat. Ñatti - LED yu am guddaayu onde, di jëfandikoo chips ultraviolet inorganik ak phosphores RGB ngir encapsuler LED yu weex yi, ñu ngi seentu ñu am chance ñu jaay ko. Waaye, dayo particule yi ak stabilite bi ñuy laaj ci ñatti phosphores melo yi dañu tuuti lool, te ba leegi ñu ngi ci di jàngat seeni jëfandikoo.
Fi ñu tolli nii, produit biñ njëkka jaay mooy LED bu am benn chip bu baxa ak phosphore bu nete bu YAG, muy am lumière bu gëna baax buy tollu ci 25 lumens/watt. YAG ñu ngi koy gëna indi ci Nichia Corporation bu Japon, seen njëg mingi tollu ci 2000 yuan/kg. Ñaareelu xeetu LED bi mooy LED yu weex yi Sumitomo Electric Industries bu Japon defar, ñu jëfandikoo ZnSe ngir defar ko, waaye seen doole gëna néew lumiere.
