Pib, LEDs tau siv raws li qhov taw qhia teeb hauv cov twj paj nruag thiab meters. Tom qab ntawd, leds ntawm ntau cov xim tau siv dav hauv lub teeb liab teeb thiab loj}- cheeb tsam qhia, tsim cov txiaj ntsig kev lag luam tseem ceeb thiab cov txiaj ntsig sib luag. Piv txwv li, ib 12 {{{{- nti liab teeb liab nyob rau hauv Tebchaws Meskas tau siv, ua rau muaj lub teeb pom kev ntev li nws lub teeb ci Tom qab dhau los ntawm lub lim liab, 90% ntawm lub teeb tau ploj, tawm tsuas yog 200 lumens ntawm lub teeb liab. Nyob rau hauv nws cov teeb tsa tshiab tsim, siv 18 liab LEDs, siv tsuas yog 14 watts suav nrog cov kev poob hluav taws xob, los ua cov kev ua kom zoo ib yam.
Cov teeb liab tsheb teeb teeb yog lwm qhov chaw thov tseem ceeb rau cov teeb tsa LED. Xyoo 1987, kuv lub teb chaws pib txhim kho siab - mounted nres teeb ntawm tsheb. Vim tias cov lus teb ceev ceev ntawm LEDs (theem kev tsav tsheb ntawm cov tsheb ua ntej, txo qis dua {{}}} xaus kev sib tsoo.
Ib qho ntxiv, LED teeb tau siv nyob rau sab nraum zoov liab, ntsuab, thiab xiav}} Cov xim xim, Keychain} Kuv yog lub teeb liab Mini.
Dawb LEDs: Rau cov teeb pom kev dav dav, cov teeb dawb yog qhov xav tau ntau dua. Dawb LEDs tau ntse tsim nyob rau xyoo 1998. Cov coj tau ua los ntawm encapsulating ib nti thiab yttrium alset (YAG) ua ke.
GAN nti emits xiav lub teeb (λp =465 nm, wd =30 nm). Lub ce 3+-}}} nws muaj cov khoom siv uas kub, emits lub teeb daj thaum zoo siab los ntawm lub teeb xiav no, nrog lub siab peak ntawm 550nm. Tus xiav LED substrate yog mounted nyob rau hauv ib lub tais {6} Daim duab resin resin tov tov nrog yag, kwv yees li 200-500nm tuab. Ib feem ntawm lub teeb xiav emritted los ntawm LED substrate yog nqus los ntawm cov phosphor, thaum lub teeb xiav xiav tawm los ntawm cov phosphor los tsim lub teeb dawb. Rau ingan / Yag Dawb Leds, los ntawm kev hloov cov tshuaj lom neeg muaj pes tsawg ntawm cov kua tshuaj phosphor, ntau yam ntawm cov xim kub nrog cov xim kub nrog cov xim kub nrog 3500-10000K tuaj yeem tau txais.
Cov lus 1 teev cov hom dawb LEDs tam sim no muaj thiab lawv lub teeb- emption cov ntsiab cai. Lub rooj tseem qhia tau hais tias qee hom dawb LED teeb tsa cia siab rau plaub lub suab: Peb thawj cov xim {4 5}} pa phosphor nrog cov qauv garnet. Peb {- wavelengthed coj, siv inorganic ultraviolet chips rau encapsulating dawb coj, yuav tsum muaj caij nyoog ntawm kev ua lag luam. Txawm li cas los xij, qhov loj me me thiab kev ruaj khov yuav tsum muaj rau peb lub cim xim pospeps yog qhov me me, thiab lawv cov ntawv thov tshwj xeeb tseem tab tom tshawb nrhiav.
Tam sim no, thawj cov khoom lag luam yog xiav xiav {}}}}}}} potped zoo tshaj plaws kev ua haujlwm ntawm kwv yees li 25 lumens / watt. YAG yog feem ntau txawv teb chaws los ntawm Nichia Corporation ntawm Nyij Pooj, luv luv nyob ib ncig ntawm 2000 Yuan / Kg. Hom thib ob yog dawb leds tsim los ntawm sumitomo hluav taws xob kev lag luam ntawm Nyiv siv ZNEE raws li cov khoom siv, tab sis nrog qis luminous efficiency.
