LED yerekana urumuri ni iki?
LED urumuri rwerekana ubukana bwurumuri rwa LED ruzaba munsi yumucyo wambere wumucyo nyuma yo gucana, naho igice cyo hepfo ni urumuri rwa LED. Mubisanzwe, abakora paki ya LED bakora ikizamini mugihe cya laboratoire (ku bushyuhe busanzwe bwa 25 ° C), kandi bagahora bamurikira LED hamwe na DC ya 20MA mumasaha 1000 kugirango bagereranye ubukana bwurumuri mbere na nyuma yumucyo. .
Uburyo bwo kubara urumuri
N-isaha yumucyo attenuation = 1- (N-isaha yumucyo / amasaha 0 yumucyo)
Kwiyongera k'urumuri rwa LED rwakozwe namasosiyete atandukanye biratandukanye, kandi LED ifite ingufu nyinshi nazo zizagira urumuri rwinshi, kandi rufite isano itaziguye nubushyuhe, ahanini biterwa na chip, fosifore nubuhanga bwo gupakira. Kumurika kwa LED (harimo luminous flux attenuation, guhindura amabara, nibindi) ni igipimo cyiza cya LED, kandi nikibazo gihangayikishije cyane abakora LED benshi nabakoresha LED.
Ukurikije ibisobanuro byubuzima bwibicuruzwa bya LED mu nganda za LED, ubuzima bwa LED nigihe cyo gukusanya igihe cyo gukora kuva agaciro kambere kugeza kubura urumuri kugeza 50% byagaciro kambere. Bisobanura ko iyo LED igeze mubuzima bwingirakamaro, LED izaba ikiri. Nyamara, munsi yumucyo, niba urumuri rusohoka rwahujwe na 50%, nta rumuri rwemewe. Mubisanzwe, urumuri rwerekana amatara yo mu nzu ntirushobora kurenga 20%, kandi urumuri rwo kumurika hanze ntirushobora kurenga 30%.