ISayensi yokuKhanya: Ukuqonda izibane zokuhombisa ze-LED

ISayensi yokuKhanya: Ukuqonda izibane zokuhombisa ze-LED

Intshayelelo

Izibane zokuhombisa ze-LED ziye zafumana ukuthandwa kakhulu kwiminyaka yamva nje, zizisa i-ambiance ekhangayo kunye nenamandla kwiindawo ezahlukeneyo. Ukusuka kwimiboniso yeeholide ukuya kuyilo lwangaphakathi lwangoku, ezi zibane ziyiguqule ingcamango yokukhanya okuhombisa. Kodwa yintoni eyenza izibane zokuhombisa ze-LED zahluke kangaka? Kweli nqaku, singena kwinzululwazi yokukhanya emva kwale mimangaliso ikhanyayo, sityhila itekhnoloji kunye nemigaqo ebenza bakhanye. Sijoyine njengoko sijonga ihlabathi elinomdla lezibane zokuhombisa ze-LED kwaye sifumane ukuqonda okunzulu ngokukhanya kwazo okunomtsalane.

Ziziphi izibane zokuhombisa ze-LED?

Izibane zokuhombisa ze-LED, okanye izibane zokuhlobisa i-Light Emitting Diode, luhlobo lokukhanyisa olusebenzisa ukuziphatha kwee-electron ukuvelisa ukukhanya okubonakalayo. Ngokungafaniyo nezibane ze-incandescent okanye izibane ze-fluorescent, ezixhomekeke kubushushu kunye nokukhutshwa kwegesi ngokulandelelana, izibane ze-LED zisebenza ngokusekelwe kwimigaqo yokukhanya okuqinileyo. Ngokuthumela ngoku ngokusetyenziswa kwezinto ze-semiconductor, izibane ze-LED zivelisa ukukhanya ngokufanelekileyo, ukubonelela ubomi obude kunye nokusebenza kwamandla akhethekileyo.

IFiziksi eNgemva kwezibane ze-LED

Izibane ze-LED zisebenza kumgaqo we-electroluminescence, inkqubo yokuvelisa ukukhanya ngokudlula umbane wombane ngezinto eziphathekayo. Ngaphakathi kokukhanya okuhombisa kwe-LED, i-semiconductor material, edla ngokwenziwa ngokudityaniswa kwezinto ezifana ne-gallium, i-arsenic, kunye ne-phosphorous, isetyenziswa. Xa umbane wombane usetyenziswa kwi-semiconductor, uvuselela ii-electron kwizinto eziphathekayo, ezibangela ukuba zixhume kumanqanaba aphezulu amandla. Njengoko ii-electron zibuyela kwiindawo zazo zangaphambili, zikhupha amandla ngendlela yeefotoni, zivelise ukukhanya okubonakalayo.

I-Spectrum yoMbala kunye nokuKhanya kwe-LED

Olunye lweempawu ezikhangayo zezibane zokuhombisa ze-LED kukukwazi kwabo ukuvelisa ukukhanya ngemibala eyahlukeneyo. Ngokuguqula ukubunjwa kwezinto ze-semiconductor, izibane ze-LED zinokwenziwa ukuze zikhuphe amaza okukhanya athile. Umbala wombala wezibane ze-LED kuxhomekeke kwi-gap yebhendi yamandla ye-semiconductor, ukugqiba amandla eefotoni ezikhutshwayo. Ngokomzekelo, i-LED ebomvu ine-gap enkulu yebhendi yamandla, ngelixa i-LED eluhlaza ine-gap encinci yamandla. Ngokudibanisa le mibala, izibane ze-LED zinokwenza uluhlu olubanzi lwee-hues, ukubonelela ngamathuba angenasiphelo kwizicelo zokukhanyisa ezihlobisa.

Izinto eziluncedo zezibane zokuhombisa ze-LED

Izibane zokuhombisa ze-LED zibonelela ngeengenelo ezininzi ngaphezulu kokhetho lwesibane sokukhanyisa, luzenza zidume ngakumbi kumakhaya, kumashishini nakwiindawo zikawonke-wonke. Okokuqala, izibane ze-LED zinamandla kakhulu, zisebenzisa amandla amancinci kakhulu kunezibane ze-incandescent okanye ze-fluorescent. Oku kusebenza kakuhle akuncedi kuphela ukunciphisa ukusetyenziswa kwamandla kodwa kuguqulela ukonga iindleko ekuhambeni kwexesha.

Okwesibini, izibane ze-LED zinobomi obude ngokumangalisayo xa kuthelekiswa neebhalbhu zemveli. Banokuhlala ukuya kumaxesha angama-25 ubude, ukunciphisa ubunzima bokutshintshwa rhoqo. Ukongeza, izibane ze-LED zihlala ixesha elide kwaye zixhathisa impembelelo, zizenza zibe lukhetho olufanelekileyo lokuhombisa ngaphandle okanye iindawo ezithanda ukungcangcazela.

Ngaphezu koko, izibane zokuhombisa ze-LED zi-eco-friendly, njengoko zingenazo izinto ezinobungozi ezifana ne-mercury, ehlala ifumaneka kwiibhalbhu ze-fluorescent. Oku kwenza ukukhanya kwe-LED kube lula ukulahla kunye nokunciphisa impembelelo yokusingqongileyo ehambelana neendlela zokukhanyisa eziqhelekileyo.

Ukusetyenziswa kwezibane zokuhombisa ze-LED

Izibane zokuhombisa ze-LED zibonelela ngokuguquguqukayo kwizicelo zabo, zongeza umtsalane kunye nomlingo kwizicwangciso ezahlukeneyo. Zisetyenziswa kakhulu ngamaxesha eeholide, ziphucula ubuhle bemithi yeKrisimesi, zikhanyisa imiboniso yangaphandle, kunye nokudala umoya womlingo. Ngapha koko, izibane ze-LED zibandakanywe ngokubanzi kuyilo lokukhanyisa uyilo, ziqaqambisa iimpawu zobuhle bezakhiwo, iibhulorho kunye neempawu zomhlaba.

Kwiminyaka yakutshanje, izibane ze-strip ze-LED ziye zafumana ukuthandwa ngenxa yokuguquguquka kwazo kunye nokukwazi ukuguqula izithuba. Ezi zintlu zincinci, ezincamathelayo ezincamathelayo ze-LED zinokufakwa ngokulula phantsi kweekhabhathi, malunga nesilingi, okanye ecaleni kwezinyuko, zibonelela ngeziphumo zokukhanya ezifihlakeleyo nezintywilayo. Izibane zentambo ze-LED zikwasetyenziswa ngokubanzi kwizinto eziphambili, iindlela zokuchaza, kunye nokudala iimilo zokuhombisa kuzo zombini iisetingi zangaphakathi nangaphandle.

Ukuqukumbela

Ukusuka ekukhanyeni kwabo okumangalisayo ukuya ekusebenzeni kwabo ngamandla, izibane zokuhombisa ze-LED ziye zaliguqula ilizwe lokukhanya. Ukuqonda inzululwazi emva kwezi zimanga zikhanyayo kusenza ukuba sixabise izibonelelo zabo kwaye siphonononge amathuba abo angenasiphelo. Njengoko itekhnoloji ihambela phambili, izibane zokuhombisa ze-LED ziya kuqhubeka nokuvela, zibonelela ngeendlela ezintsha nezinomtsalane ekudaleni iindawo ezimangalisayo. Ke, kwixesha elizayo xa ubona ukukhanya okukhazimlayo kwezibane zokuhombisa ze-LED, khumbula isayensi enomdla ebenza baphile. Khanyisa indawo yakho kwaye wamkele imimangaliso yokukhanya kwe-LED!