Lub teeb-emitting txoj cai ntawm sab-emitting thaj coj
Lub davhlau ya nyob twg voltage ntawm PN hlws ris ua ib qho teeb meem muaj peev xwm. Thaum qhov kev tsis ncaj ncees rau pem hauv ntej raug siv, qhov kev cuam tshuam muaj peev xwm poob qis, thiab feem ntau cov neeg nqa khoom ntawm thaj av P thiab thaj tsam N diffuse rau ib leeg. Txij li thaum lub tshuab hluav taws xob muaj ntau dua qhov kev txav mus los ntawm lub qhov, ntau cov electrons yuav diffuse mus rau hauv cheeb tsam P, uas yog kev txhaj tshuaj ntawm cov neeg nqa khoom tsawg rau hauv cheeb tsam P. Cov electrons recombine nrog qhov nyob rau hauv lub valence band, thiab lub zog tau txais thaum lub sij hawm recombination yog tso tawm nyob rau hauv daim ntawv ntawm lub teeb lub zog. Qhov no yog lub hauv paus ntsiab lus ntawm PN junction light emission.
Nta ntawm sab-emitting thaj coj
1. Voltage: LED teeb hlaws siv cov khoom siv hluav taws xob tsawg, thiab lub zog hluav taws xob yog nyob nruab nrab ntawm 2-4V, uas txawv raws li cov khoom sib txawv, yog li nws yog lub zog ruaj ntseg dua li kev siv hluav taws xob siab, tshwj xeeb tshaj yog tsim rau cov chaw pej xeem;
2. Tam sim no: Lub ci ci ci dua nrog qhov nce ntawm qhov tam sim no. Kev ua haujlwm tam sim no ntawm lub teeb hluav taws xob qis LED hlaws yog 0-60mA, thiab qhov ua haujlwm tam sim no ntawm lub zog LED siab tshaj 150mA.
3. Efficiency: Lub zog noj yog 80 feem pua tsawg dua li ntawm cov teeb incandescent nrog tib lub teeb efficiency.
4. Kev siv tau: me me, txhua chav LED nti yog 3-5 hli square, yog li nws tuaj yeem npaj rau hauv ntau yam duab ntawm cov khoom siv, thiab tsim nyog rau qhov chaw sib txawv.
5. Kev ruaj ntseg: 100, 000 teev, lub teeb lwj yog 50 feem pua ntawm cov nqi pib.
6. Lub sij hawm teb: Lub sij hawm teb ntawm lub teeb incandescent yog milliseconds, thiab lub sij hawm teb ntawm sab-emitting thaj LED yog nanoseconds.
7. Ib puag ncig muaj kuab paug: tsis muaj teeb meem hlau mercury.
8. Xim: Hloov tam sim no tuaj yeem hloov xim. Lub teeb-emitting diode tuaj yeem yooj yim kho lub zog band qauv thiab qhov sib txawv ntawm cov khoom siv los ntawm kev hloov kho tshuaj kom ua tiav ntau xim emission ntawm liab, daj, ntsuab, xiav thiab txiv kab ntxwv. Piv txwv li, ib qho LED uas muaj xim liab ntawm qhov tam sim no tuaj yeem tig xim txiv kab ntxwv, daj, thiab thaum kawg ntsuab raws li tam sim no nce.
Benwei Teeb pom kev zoo yog LED Tube, LED dej nyab teeb, LED Vaj Huam Sib Luag Teeb, LED High Bay, LED chaw tsim tshuaj paus nrog 12 xyoo kev paub. Yog tias koj xav yuav lub teeb zoo LED dej nyab lub teeb lossis muaj kev nkag siab ntau ntxiv ntawm daim ntawv thov ntawm LED dej nyab teeb, thov hu rau peb nug, peb lub vev xaib:
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