Inumgarnet diode iftiin leh (CE3: yag) crystal ayaa lagu shiiday budo waxaana lagu qasaa koolo cufan. Marka chip-ka LED-ka uu soo saaro nalka buluuga ah, qaar ka mid ah Blu-ray-ga ayaa lagu beddeli doonaa crystal-gan oo leh muuqaalo kala duwan (qiyaastii 580nm ee dhexda spectrum). (Xaqiiqdii, YAG ee hal crystal isku qasan CE waxaa loo arkaa inuu ka flicker ka badan fosfooraska.) Sababtoo ah iftiinka jaalaha ah ayaa kicin doona soo-dhoweynta casaanka iyo cagaarka ee indhaha qaawan, iftiinka buluuga ah ee LED-ka laftiisa ayaa ka dhigaya mid u eg iftiin cad. Midabkeedana inta badan waxaa loo yaqaan
“Dayax cad
”. Habkan samaynta iftiinka cad ee LED waxaa soo saaray Nichiacorporation waxayna bilowday inay soo saarto iftiinka cad ee LED 1996. Haddii aad dooneyso in aad bedelidso midibka ee dhagaar ah, waxaad isticmaali kartaa khalka kale ee dhulka ah ama (CE) ee CE3: yag, iyo xataa jid in uu soo geliyo qeyb ah ama aluminium oo dhan ay ku sameeyo YAG. Iyada oo lagu saleynayo sifooyinka spectrumkeeda, walxaha casaanka iyo cagaarka ah waxay u muuqdaan kuwo ka yar kuwa isha iftiinka ballaaran ee hoos yimaada soo-gaadhista LED-ka. Intaa waxaa dheer, sababtoo ah isbeddelka xaaladaha wax soo saarka, heerkulka midabka ee alaabtan la dhammeeyey maaha mid la mid ah, laga bilaabo jaalaha diiran ilaa buluug qabow. Sidaa darteed, habka wax soo saarka. Habka kale ee iftiinka cad ee LED wuxuu u eg yahay nalka fluorescent. Nalalka LED-ka ee sii daaya iftiinka ultraviolet ku dhawaad waxaa lagu rinjiyeeyaa laba isku dhaf ah oo fosfooraska ah, mid waa casaan iyo iftiin buluug ah, kan kalena waa iftiin cagaaran. Copper iyo aluminium oo leh zinc sulfide (ZNS). Si kastaba ha ahaatee, sababtoo ah fallaadhaha ultraviolet waxay samayn karaan dildilaaca resin epoxy iyo xumaanta xabagta, wax soo saarka ayaa aad u adag, rajada noloshuna waa gaaban tahay. Marka la barbardhigo habka ugu horreeya, waxay leedahay waxtar hoose oo soo saara kuleyl badan (sababtoo ah STOKESSHIFT hore ayaa hore u weyn), laakiin faa'iidada ayaa ah in sifooyinka spectrum ay ka fiican yihiin. Sababtoo ah awoodda LED-ka ee iftiinka UV waa mid sarreeya, in kasta oo waxtarkeedu yar yahay, dhalaalka soo baxa ayaa la mid ah. Qaabkii ugu dambeeyay ee loo sameeyo nalalka cad-cad ma isticmaalo jirka iftiinka fosfooraska. Habka cusub ayaa ah in lagu koriyo zinc-ka substrate-ka zinc-zinc (ZNSE). Marka la shido, aaggeeda firfircooni waxay soo saari doontaa iftiin buluug ah, substrate-kuna wuxuu isu rogi doonaa huruud, wuxuuna noqon doonaa iftiin cad oo lagu qaso.
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Shaqooyinka UV
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Kalsada UV LED
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UV
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Modulka UV
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