Lilemong tsa bo-60 tsa lekholo le fetileng la lilemo, basebetsi ba saense le theknoloji ba ile ba sebelisa molao-motheo oa semiconductor PN junction luminescence ho hlahisa li-diode tsa LED tse hlahisang leseli.LED e hlahisitsoeng ka nako eo e ne e sebelisa GaASP, 'mala oa eona o khanyang o khubelu.Ka mor'a lilemo tse ka bang 30 tsa tsoelo-pele, LED eo bohle ba e tsebang haholo e khonne ho ntša mabone a khubelu, a lamunu, a mosehla, a matala, a maputsoa le a mang a mebala.Leha ho le joalo, LED e tšoeu bakeng sa mabone e ile ea ntlafatsoa feela ka mor'a 2000, 'me' mali o hlahisoa ho LED e tšoeu bakeng sa ho bonesa.Mohloli oa pele oa leseli la LED o entsoeng ka semiconductor PN junction luminescence molao-motheo o hlahile mathoasong a lilemo tsa bo-60 tsa lekholo la bo20 la lilemo.
Thepa e neng e sebelisoa ka nako eo e ne e le GaAsP, e neng e benya bofubelu ( λp = 650nm), 'me ka motlakase oa 20 mA, phallo e khanyang e ne e le likete tse' maloa feela tsa lumens, 'me katleho e tšoanang e khanyang e ne e ka ba 0.1 lumens ka watt ka 'ngoe. .Bohareng ba lilemo tsa bo-70, likarolo tsa In le N li ile tsa hlahisoa ho etsa hore li-LED li hlahise leseli le letala (λp=555nm), leseli le mosehla (λp=590nm) le lebone la lamunu (λp=610nm), 'me matla a khanya a boetse a eketsoa ho 1. lumen/watt.Mathoasong a lilemo tsa bo-80, mohloli oa leseli la GaAlAs LED o ile oa hlaha, o etsa hore khanya e khubelu ea LED e fihlelle li-lumens tse 10 ka watt.Mathoasong a lilemo tsa bo-90, lisebelisoa tse peli tse ncha, GaAlInP, e hlahisang leseli le khubelu le le mosehla, le GaInN, e hlahisang leseli le letala le leputsoa, li ile tsa ntlafatsoa ka katleho, tse ileng tsa ntlafatsa haholo khanya ea LED.Ka 2000, LED e entsoeng ka ea pele e ile ea fumana matla a khanya a 100 lumens/watt libakeng tse khubelu le tsa lamunu (λp = 615nm), ha LED e entsoeng ka morao e ne e ka fihla lumens / watt tse 50 sebakeng se setala ( λp = 530nm).
Nako ea poso: Nov-11-2022