I-LED ivelisa njani ukukhanya?

I-Electroluminescence yinkqubo apho ii-LED (ii-Light Emitting Diodes) zivelisa ukukhanya. Nantsi indlela esebenza ngayo:

Izinto ze-1-Semiconductor: Izinto ze-semiconductor, ezidla ngokuba ngumxube wezinto ezifana ne-phosphorus, i-arsenic, okanye i-gallium, zisetyenziselwa ukwenza i-LED. Zombini indawo ye-n-type (negative), enee-electron ezininzi, kunye nommandla we-p-type (positive), ongenayo ii-electron (imingxuma), ziveliswa xa i-semiconductor ixutywe nokungcola.

Ukuphinda-phindana kwee-electron-hole ezi-2: Ii-electron ezivela kwindawo yohlobo lwe-n zinyanzeliswa ziye kummandla wohlobo lwe-p xa i-voltage ibekwa kwi-LED. Ezi electron ziphinda zihlangane neengxunya kummandla wohlobo lwe-p.

Ukukhutshwa kwe-Photon oku-3: Amandla akhutshwa njengokukhanya (ii-photon) ngeli xesha lenkqubo yokuphinda kuhlanganiswe. I-bandgap yamandla yezinto ze-semiconductor ezisetyenziswayo imisela umbala wokukhanya okukhutshwayo. Ukukhanya kuza ngemibala eyahlukeneyo kuxhomekeke kwinto eyenziweyo.

4-Ukusebenza Kakuhle: Ekubeni uninzi lwamandla kwii-LED luguqulwa lube kukukhanya endaweni yobushushu—ingxaki eqhelekileyo ngeebhalbhu ze-incandescent eziqhelekileyo—ii-LED zisebenza kakuhle kakhulu.

5-Ukufakwa kwe-Encapsulation: Ngokufaka i-LED kwi-resin ecacileyo okanye ilensi, ukukhanya ekukhuphayo kuhlala kuphuculwa. Oku kunokunceda ekusasazeni ukukhanya nokwenza kubonakale kubhetele.

Xa kuthelekiswa neendlela zokukhanyisa eziqhelekileyo, le ndlela ivumela ii-LED ukuba zibonelele ngokukhanya okuqinileyo, okuxineneyo ngelixa zisebenzisa amandla amancinci kakhulu.

Nangona zisebenza ixesha elide kwaye zisebenza kakuhle, izibane ze-LED zinokuba neengxaki ezininzi eziqhelekileyo, ezinje ngezi:
1) Utshintsho loBushushu boMbala: Ukukhanya okungalinganiyo kwindawo ethile kunokubangelwa kukutshintsha kobushushu bombala phakathi kwezibane ze-LED.

2) Ukufiphaza: Xa kusetyenziswa iiswitshi ze-dimmer ezingahambelaniyo okanye xa kukho iingxaki ngombane, izibane ezithile ze-LED zinokufiphaza.

3) Ubushushu obugqithisileyo: Ii-LED zivelisa ubushushu obuncinci kunezibane eziqhelekileyo, kodwa ukungabikho kobushushu obufanelekileyo kunokubangela ubushushu obugqithisileyo, nto leyo enokunciphisa ixesha lobude bebhalbhu.

4) Iingxaki zoMqhubi: Ukuze kulawulwe umbane, izibane ze-LED zifuna abaqhubi. Isibane sinokudanyaza, sifiphale, okanye siyeke ukusebenza ngokupheleleyo ukuba umqhubi akasebenzi kakuhle okanye akasemgangathweni.

5) Ukuhambelana kokukhanya okufipheleyo: Iingxaki zokusebenza zinokuvela kuba ezinye izibane ze-LED azihambelani nezitshintshi zokukhanya ezifipheleyo zangoku.

6) I-Angle yeBeam eLimited: Ukukhanya okungalinganiyo kunokubangelwa zizibane ze-LED ezine-engile yebeam elinganiselweyo, nto leyo esenokungafaneleki kwiindlela ezininzi zokusebenza.

7) Ixabiso Lokuqala: Nangona izibane ze-LED zisonga imali ngokuhamba kwexesha, zinokubiza ngaphezulu ukuzithenga ekuqaleni kuneebhalbhu zesiqhelo.

8) Iingxaki Zokusingqongileyo: Ukuba azilahlwanga ngokufanelekileyo, amanqanaba amancinci ezinto eziyingozi ezifana nelothe okanye i-arsenic efumaneka kwezinye izibane ze-LED angonakalisa okusingqongileyo.

9) Ukuguquguquka koMgangatho: Kukho iimveliso ezininzi ezahlukeneyo ze-LED ezithengiswayo, kwaye azikho zonke ezenziwe ngemigangatho efanayo, nto leyo ebangela umahluko kwixesha elide kunye nokusebenza.

10) Ukungahambelani neZinto ezithile: Iibhalbhu ezithile ze-LED, ingakumbi ezo zenzelwe iibhalbhu zesiqhelo ze-incandescent, azikwazanga ukusebenza kakuhle kwizixhobo ezithile.

Ukukhetha izinto ezisemgangathweni ophezulu, ukuqinisekisa ukuba zisebenza neenkqubo zangoku, kwaye ngokwemiyalelo yokufakela zihlala zifuneka ukusombulula ezi ngxaki.

Kukho imicu emininzi yokukhanya onokukhetha kuyo kwimarike ngoku, efanaUmcu weCOBUmcu we-CSP, owahlukileyo kwiUmcu we-SMD,Nxibelelana nathi ukuba ufuna iisampulu zovavanyo.