Lub hauv paus ntsiab lus ntawm LED teeb khoom
Nws cov qauv yooj yim yog ib qho ntawm cov khoom siv hluav taws xob siv hluav taws xob, cov khoom siv hluav taws xob hauv lub xeev, uas tuaj yeem hloov hluav taws xob ncaj qha mus rau hauv lub teeb. Nws tau muab tso rau ntawm lub txee nrog cov coj, thiab tom qab ntawd kaw nrog epoxy cob ib puag ncig nws los tiv thaiv cov tub ntxhais hlau sab hauv, yog li LED muaj qhov ua tau zoo seismic. LED teeb nta
Lub teeb fluorescent LED tau siv LED lub teeb pom kev zoo thev naus laus zis thiab tsim qauv zoo nkauj, uas tuaj yeem txuag ntau dua 70% ntawm hluav taws xob. Qhov kev siv ntawm 12W LED teeb lub teeb ci zoo ib yam li ntawm 40W lub raj roj fluorescent. Cov yam ntxwv tseem ceeb ntawm LED teeb muaj raws li hauv qab no:
1) Kev txuag hluav taws xob thiab lub neej ntev.
2) Kev siv tau zoo. Vim tias qhov loj me me ntawm ib qho LED, nws tuaj yeem ua rau hauv cov duab.
3) Lub sijhawm teb luv, uas yog lub sijhawm teb ntawm ns (nanosecond) qib, thaum lub sijhawm teb ntawm cov teeb pom kev zoo ib yam thiab teeb yog ms (millisecond) qib.
4) Kev tiv thaiv ib puag ncig, tsis muaj cov hlau phom sij, thiab rov ua dua tshiab ntawm cov pov tseg.
5) Cov xim zoo nkauj heev, lub teeb pom kev zoo yog qhov huv, qhov ntau yog qhov nqaim, thiab tuaj yeem sib xyaw ua xim lossis xim dawb los ntawm peb lub hauv paus xim liab, ntsuab thiab xiav.
Lub hauv paus ntsiab lus ntawm LED teeb
Lub plawv ntawm LED yog cov khoom siv hluav taws xob. Ib qho kawg ntawm lub nti tau txuas rau lub bracket, thiab lwm qhov kawg txuas nrog lub ncej zoo ntawm lub zog hluav taws xob, kom tag nrho cov nti tau ntim los ntawm epoxy cob. Lub semiconductor wafer yog tsim los ntawm ob ntu, ib feem yog P-hom semiconductor, uas nyob hauv qhov; lwm qhov kawg yog N-hom semiconductor, ntawm no yog cov khoom siv hluav taws xob feem ntau. Tab sis thaum ob lub tshuab hluav taws xob no txuas nrog, PN sib txuas tau tsim los ntawm lawv. Thaum tam sim no ua haujlwm ntawm cov nti los ntawm cov xaim, cov hluav taws xob yuav raug thawb mus rau thaj tsam P, qhov twg cov hluav taws xob thiab qhov sib txuas ua ke, thiab tom qab ntawd tso lub zog tawm hauv daim duab. Qhov no yog lub hauv paus ntsiab lus ntawm LED teeb emission. Lub wavelength ntawm lub teeb tseem yog xim ntawm lub teeb, uas yog txiav txim siab los ntawm cov khoom tsim ua PN txuas.
LED teeb daim ntawv thov
Thaum xub thawj, LEDs tau siv ua qhov taw qhia teeb pom kev rau cov cuab yeej thiab ntsuas. Tom qab ntawd, LEDs ntawm ntau lub teeb xim tau siv dav hauv cov teeb liab teeb thiab cov duab loj hauv cheeb tsam, uas ua rau muaj txiaj ntsig zoo rau kev lag luam thiab kev sib raug zoo. Cov teeb liab tsheb kuj tseem yog ib qho tseem ceeb ntawm LED teeb pom kev siv. Vim tias cov lus teb nrawm ntawm LEDs, cov neeg tsav tsheb ntawm cov tsheb hauv qab no tuaj yeem paub txog kev tsav tsheb sai li sai tau, thiab qhov tshwm sim ntawm kev sib tsoo tom kawg tuaj yeem txo qis. Ib qho ntxiv, LED teeb tau siv rau sab nraum zoov liab, ntsuab, thiab xiav puv xim cov ntxaij vab tshaus, lub ntsej muag tseem ceeb hom teeb nyem me me thiab lwm yam haujlwm. , LED phab ntsa tshuab ntxhua khaub ncaws khoom
Lub teeb ci zoo li cas yog lub teeb khoom LED thiab nws ua haujlwm li cas?
Lub tuam txhab cov khoom lag luam teeb pom kev zoo LED (Lub Teeb Emitting Diode), lub teeb emitting diode, yog lub xeev cov khoom siv hluav taws xob uas tuaj yeem hloov hluav taws xob ncaj qha mus rau hauv lub teeb. Lub plawv ntawm LED yog cov khoom siv hluav taws xob. Ib qho kawg ntawm lub teeb ci LED (6 daim duab) nti tau txuas rau lub bracket, ib kawg yog tus ncej tsis zoo, thiab lwm qhov kawg txuas nrog tus ncej zoo ntawm lub hwj chim, kom tag nrho cov nti tau ntim los ntawm epoxy cob. Lub semiconductor wafer yog tsim los ntawm ob ntu, ib feem yog P-hom semiconductor, uas nyob hauv qhov, thiab lwm qhov kawg yog N-hom semiconductor, uas yog cov khoom siv hluav taws xob feem ntau. Tab sis thaum ob lub tshuab hluav taws xob no txuas nrog, PN sib txuas tau tsim los ntawm lawv. Thaum tam sim no ua haujlwm ntawm cov nti los ntawm cov xaim, cov hluav taws xob yuav raug thawb mus rau thaj tsam P, qhov twg cov hluav taws xob thiab qhov sib txuas ua ke, thiab tom qab ntawd tso lub zog tawm hauv daim duab. Qhov no yog lub hauv paus ntsiab lus ntawm LED teeb emission. Lub wavelength ntawm lub teeb tseem yog xim ntawm lub teeb, uas yog txiav txim siab los ntawm cov khoom tsim ua PN txuas.
