Namuhla i-LED isiyingxenye engafinyeleleki yokuphila kwethu. Namuhla, ngizokunikeza isingeniso esifushane somqondo, izici, nokuhlukaniswa ngezigaba.

Umqondo we-LED

I-LED (I-Light Emitting Diode) iyisisetshenziswa se-semiconductor yesimo esiqinile esiguqulela ugesi ngokuqondile ube Ukukhanya. Inhliziyo ye-LED iyi-chip ye-semiconductor, enomkhawulo owodwa oxhunywe esikafulani, umkhawulo owodwa okuyi-electrode engalungile, kanti enye ixhunywe ekugcineni okuhle kokunikezwa kwamandla, ukuze yonke i-chip ivalwe endaweni. i-epoxy resin.

I-chip ye-semiconductor yakhiwe izingxenye ezimbili, enye yazo i-p-type semiconductor, lapho izimbobo zibusa khona, kanti enye i-semiconductor yohlobo lwe-n, lapho ama-electron abusa khona. Kodwa lapho ama-semiconductors amabili exhunyiwe, kwakheka “i-pn junction” phakathi kwawo. Uma i-current isetshenziswa ku-chip ngocingo, ama-electron aphushelwa ku-p-region, lapho aphinde ahlangane nembobo futhi akhiphe amandla ngendlela yama-photons, okuyindlela ama-LED akhanya ngayo. Futhi ubude begagasi bokukhanya, umbala wokukhanya, bunqunywa into eyenza ukuhlangana kwe-PN.

Izici ze-LED

Izici ze-intrinsic ze-LED zinquma ukuthi iwumthombo wokukhanya ofaneleka kakhulu ongangena esikhundleni somthombo wokukhanya wendabuko, inezinhlobonhlobo zezinhlelo zokusebenza.

• Ivolumu Encane

I-LED ngokuyisisekelo iyi-chip encane kakhulu efakwe ku-epoxy resin, ngakho-ke incane kakhulu futhi ilula kakhulu.

-Low Power Ukusetshenziswa

Ukusetshenziswa kwamandla e-LED kuphansi kakhulu, ngokuvamile, i-LED yokusebenza kwamandla yi-2-3.6V.
Ukusebenza kwamanje kungu-0.02-0.03A.
Okusho ukuthi, ayisebenzisi ngaphezu kuka-0.1W kagesi.

• Impilo Emide Yenkonzo

Ngamanje kanye ne-voltage efanele, ama-LED angaba nempilo yesevisi efinyelela emahoreni ayi-100,000.

• Ukukhanya Okuphezulu Nokushisa Okuphansi

• Ukuvikelwa Kwemvelo

Ama-LED akhiwe ngezinto ezingezona ezinobuthi, ngokungafani nezibani ze-fluorescent, eziqukethe i-mercury futhi zibangele ukungcola. Angabuye asetshenziswe kabusha.

• Iqinile futhi Ihlala isikhathi eside

Ama-LED ahlanganiswe ngokugcwele ku-epoxy resin, enamandla kunawo womabili amalambu okukhanya namashubhu e-fluorescent.Azikho futhi izingxenye ezivulekile ngaphakathi kwesibani, okwenza ama-LED angapheli.

Ukuhlukaniswa kwe-LED

1, Ngokusho kweshubhu elikhipha ukukhanyaumbalaamaphuzu

Ngokombala okhipha ukukhanya weshubhu elikhipha ukukhanya, lingahlukaniswa libe ngokubomvu, okuwolintshi, okuluhlaza okotshani (nokuphuzi okuluhlaza, okuluhlaza okujwayelekile nokuluhlaza okumsulwa), okuluhlaza okwesibhakabhaka njalo njalo.
Ngaphezu kwalokho, amanye ama-LED aqukethe ama-chips emibala emibili noma emithathu.
Ngokusho kwe-diode ekhipha ukukhanya exutshwe noma engaxutshwe nama-scatterers, anombala noma angenambala, imibala ehlukahlukene engenhla ye-LED ingabuye ihlukaniswe ibe nemibala ekhanyayo, ekhanyayo engenambala, ehlakazekayo enemibala kanye nokuhlakazeka okungenambala kwezinhlobo ezine.
Ukusabalalisa ama-diode akhipha ukukhanya nokukhanya - ama-diode aphumayo angasetshenziswa njengezibani zezinkomba.

2.Ngokwezimpawu zokukhanyaphezuluweshubhu elikhipha ukukhanya

Ngokwezici zokukhanya okukhipha ukukhanya kweshubhu elikhipha ukukhanya, lingahlukaniswa libe isibani esiyindilinga, isibani sesikwele, isibani esingunxande, ishubhu elikhipha ukukhanya kobuso, ishubhu eseceleni kanye neshubhu elincane lokufakwa kwendawo, njll.
Isibani esiyindilinga sihlukaniswe ngo-Φ2mm, Φ4.4mm, Φ5mm, Φ8mm, Φ10mm kanye no-Φ20mm, njll.
Amazwe angaphandle ngokuvamile aqopha i-diode engu-Φ3mm ekhipha ukukhanya njenge-T-1, φ5mm njengoba T-1 (3/4), kanyeφ4.4mm njenge-T-1 (1/4).

3.Ngokuvumelana neisakhiwoama-diode akhipha ukukhanya

Ngokwesakhiwo se-LED, kukhona zonke i-epoxy encapsulation, i-metal base epoxy encapsulation, i-ceramic base epoxy encapsulation kanye ne-glass encapsulation.

4.Ngokushoamandla akhanyayo kanye nokusebenza kwamandla

Ngokusho kokuqina okukhanyayo nokusebenza kwamanje kuhlukaniswe ukukhanya okujwayelekile kwe-LED (i-luminous intensity 100mCD);
Amandla okukhanya aphakathi kuka-10 no-100mCD abizwa ngokuthi i-high brightness light-emitting diode.
Ukusebenza kwamanje kwe-LED evamile isuka ku-mA eyishumi kuya kwamashumi amabili e-mA, kuyilapho ukusebenza kwamanje kwe-LED yamanje ephansi ingaphansi kuka-2mA (ukukhanya kuyafana nokweshubhu elivamile elikhipha ukukhanya).
Ngaphezu kwalezi zindlela zokuhlukanisa ezingenhla, kunezindlela zokuhlukanisa ngezinto ze-chip kanye nomsebenzi.

I-Ted: i-athikili elandelayo nayo imayelana ne-LED. Kwenzenjani? Sicela uhlale ubukele.