I-LED ivelisa njani ukukhanya?

I-Electroluminescence yinkqubo apho ii-LED (i-Light Emitting Diodes) zivelisa ukukhanya. Le yindlela esebenza ngayo:

I-1-Semiconductor Material: Isixhobo se-semiconductor, ngokuqhelekileyo umxube wezinto ezifana ne-phosphorous, i-arsenic, okanye i-gallium, isetyenziselwa ukwenza i-LED. Zombini indawo ye-n (negative), ene-electron engaphezulu, kunye ne-p-type (positive) ummandla, onokungabikho kwee-electron (imingxuma), ziveliswa xa i-semiconductor ifakwe ngokungcola.

I-2-Electron-Hole Recombination: Ii-electron ezivela kwindawo yohlobo lwe-n zinyanzeliswa ukuya kwindawo ye-p-type xa i-voltage ibekwe kwi-LED. Ezi electron ziphinda zihlangane kunye nemingxuma kwindawo yohlobo lwe-p.

I-3-Photon Emission: Amandla akhutshwa njengokukhanya (iifotoni) ngexesha lenkqubo yokudibanisa. I-bandgap yamandla yempahla ye-semiconductor esetyenzisiweyo imisela i-hue yokukhanya ekhutshwayo. Ukukhanya kuza ngemibala eyahlukeneyo ngokuxhomekeke kwizinto eziphathekayo.

I-4-Ukusebenza kakuhle: Ekubeni uninzi lwamandla kwii-LED luguqulwa lube ukukhanya kunokushisa-ingxaki eqhelekileyo kunye neebhubhu ze-incandescent eziqhelekileyo-ii-LED zisebenza ngokumangalisayo.

I-5-Encapsulation: Ngokufaka i-LED kwi-resin ecacileyo okanye i-lens, ukukhanya okukhuphayo kuphucula rhoqo. Oku kunokunceda ukusasaza ukukhanya kwaye kubonakale ngcono.

Xa kuthelekiswa neendlela eziqhelekileyo zokukhanyisa, le ndlela yenza ukuba ii-LED zinike ukukhanya okukhulu, okugxininisiweyo ngelixa zisebenzisa amandla amancinci.

Ngaphandle kobude obude kunye nokusebenza kakuhle, izibane ze-LED zinokuba nenani lemiba eqhelekileyo, efana nale:
I-1) Ukwahluka kobushushu boMbala: Ukukhanya okungahambelaniyo kwindawo kunokukhokelela ekutshintsheni kobushushu bombala phakathi kweebhetshi zezibane ze-LED.

I-2)I-Flickering: Xa isetyenziswe kunye nokutshintsha kwe-dimmer engahambelaniyo okanye xa kukho iingxaki kunye nokunikezelwa kombane, izibane ezithile ze-LED zinokudanyaza.

I-3) Ukushisa okugqithisileyo: Ii-LED zivelisa ukushisa okuncinci kunezibane eziqhelekileyo, kodwa ukutshatyalaliswa kobushushu obunganelanga kunokubangela ukushisa, okunokunciphisa ixesha lokuphila kwee-bulbs.

4) Iingxaki zomqhubi: Ukuze ulawule amandla, izibane ze-LED zifuna abaqhubi. Isibane singadanyaza, sibe mnyama, okanye siyeke ukusebenza ngokupheleleyo ukuba umqhubi akasebenzi kakuhle okanye ukumgangatho ophantsi.

I-5) I-Dimming Compatibility: Iingxaki zokusebenza zinokuvela ngenxa yokuba ezinye izibane ze-LED azihambelani nokutshintsha kwe-dimmer yangoku.

I-6) I-Angle ye-Beam elinganiselweyo: Ukukhanya okungalinganiyo kunokukhokelela kwizibane ze-LED kunye ne-angle ye-boam encinci, enokuthi ingafaneleki kwizicelo ezininzi.

I-7) Iindleko zokuqala: Nangona izibane ze-LED zigcina imali ngokuhamba kwexesha, zinokubiza ngaphezulu ukuthenga kuqala kunee-bulbs eziqhelekileyo.

I-8) Iinkxalabo zeNdalo: Ukuba ayilahlwanga ngokufanelekileyo, landela amanqanaba ezinto ezinobungozi ezifana nelothe okanye i-arsenic efunyenwe kwezinye izibane ze-LED inokubeka engozini indalo.

I-9) Ukuhluka koMgangatho: Kukho izinto ezininzi ezahlukeneyo ze-LED kwiimarike, kwaye ayizizo zonke eziveliswa kwimigangatho efanayo, ebangela ukuhluka kwexesha elide kunye nokusebenza.

10)Ukungahambelani noLungiso oluthile: Iibhalbhu ezithile ze-LED, ngakumbi ezo zenzelwe iibhalbhu ze-incandescent eziqhelekileyo, azikwazanga ukusebenza kakuhle kwizixhobo ezithile.

Ukukhetha izinto eziphezulu, ukuqinisekisa ukuba zisebenza kunye neenkqubo zangoku, kwaye ngokwemiyalelo yokufakela zihlala ziyimfuneko ukusombulula ezi ngxaki.

Zininzi iintambo zokukhanya ongakhetha kuzo kwimarike ngoku, ezinjeI-COB stripCSP strip, eyahlukileyo kunyeUluhlu lwe-SMD, qhagamshelana nathi ukuba ufuna iisampuli zovavanyo.