Namuhla i-LED isibe yingxenye engafinyeleleki empilweni yethu. Namuhla, ngizokunikeza isingeniso esifushane ngomqondo, izici, kanye nokuhlukaniswa.

Umqondo we-LED

I-LED (i-Light Emitting Diode) iyidivayisi ye-semiconductor eqinile eguqula ugesi ngqo ibe yi-Light. Inhliziyo ye-LED iyi-chip ye-semiconductor, enomkhawulo owodwa onamathele esikafuleni, omunye umkhawulo wayo uyi-electrode engalungile, kanti omunye umkhawulo uxhunywe ekugcineni okuhle kokunikezwa kwamandla, ukuze yonke i-chip ivalwe nge-resin ye-epoxy.

I-chip ye-semiconductor yakhiwe izingxenye ezimbili, enye yazo iyi-semiconductor ye-p-type, lapho kubusa khona imigodi, kanti enye iyi-semiconductor ye-n-type, lapho kubusa khona ama-electron. Kodwa lapho ama-semiconductor amabili exhunywe, kwakheka "i-pn junction" phakathi kwawo. Lapho ugesi ufakwa ku-chip ngentambo, ama-electron asunduzelwa esifundeni se-p, lapho ahlangana khona nomgodi futhi akhiphe amandla ngesimo sama-photon, okuyiyona ndlela ama-LED akhanya ngayo. Futhi ubude bokukhanya, umbala wokukhanya, bunqunywa yizinto ezakha i-PN junction.

Izici ze-LED

Izici zangaphakathi ze-LED zinquma ukuthi ingumthombo wokukhanya ofanele kakhulu ukufaka esikhundleni somthombo wokukhanya wendabuko, inezinhlelo zokusebenza eziningi ezahlukene.

• Umthamo Omncane

I-LED empeleni iyi-chip encane kakhulu ehlanganiswe ne-epoxy resin, ngakho-ke incane kakhulu futhi ilula kakhulu.

-Ukusetshenziswa Kwamandla Okuphansi

Ukusetshenziswa kwamandla e-LED kuphansi kakhulu, ngokuvamile, i-voltage yokusebenza ye-LED ingu-2-3.6V.
Ugesi osebenzayo ungu-0.02-0.03A.
Okusho ukuthi, ayisebenzisi ugesi ongaphezu kuka-0.1W.

• Impilo Ende Yenkonzo

Uma unamandla kagesi kanye ne-voltage efanele, ama-LED angaba nokuphila kwesikhathi senkonzo esingafika emahoreni ayi-100,000.

• Ukukhanya Okuphezulu Nokushisa Okuphansi

• Ukuvikelwa Kwemvelo

Ama-LED enziwe ngezinto ezingezona ezinobuthi, ngokungafani nezibani ze-fluorescent, eziqukethe i-mercury futhi ezibangela ukungcola. Angaphinde asetshenziswe.

• Iqinile Futhi Ihlala Isikhathi Eside

Ama-LED ahlanganiswe ngokuphelele nge-epoxy resin, enamandla kunama-bulb okukhanya namashubhu e-fluorescent. Azikho izingxenye ezikhululekile ngaphakathi kwesibani, okwenza ama-LED angabhubhi.

Ukuhlukaniswa kwe-LED

1, Ngokusho kwepayipi elikhipha ukukhanyaumbalaamaphuzu

Ngokombala okhipha ukukhanya kwepayipi elikhipha ukukhanya, lingahlukaniswa libe bomvu, o-orenji, oluhlaza okotshani (nophuzi oluhlaza okotshani, oluhlaza okotshani olujwayelekile noluhlaza okotshani olumsulwa), oluhlaza okwesibhakabhaka njalo njalo.
Ngaphezu kwalokho, amanye ama-LED aqukethe ama-chips anemibala emibili noma emithathu.
Ngokusho kwe-diode ekhipha ukukhanya exutshwe noma engaxutshwanga nezihlakazi, ezinombala noma ezingenambala, imibala ehlukahlukene ye-LED engenhla ingahlukaniswa futhi ibe yimibala ecacile, engabonakali engenambala, ehlakazekayo enemibala kanye nezinhlobo ezine ezicacile.
Ama-diode akhipha ukukhanya asakazekayo kanye nama-diode akhipha ukukhanya angasetshenziswa njengezibani zokubonisa.

2. Ngokusho kwezimpawu zokukhanyaubusoyepayipi elikhipha ukukhanya

Ngokwezici zobuso obukhipha ukukhanya kwepayipi elikhipha ukukhanya, lingahlukaniswa libe yilambu eliyindilinga, isibani esiyisikwele, isibani esingunxande, ipayipi elikhipha ukukhanya kobuso, ipayipi eliseceleni kanye nepayipi elincane lokufakwa kobuso, njll.
Isibani esiyindilinga sihlukaniswe ngama-Φ2mm, Φ4.4mm, Φ5mm, Φ8mm, Φ10mm kanye ne-Φ20mm, njll.
I-Foreign ivame ukurekhoda i-Φ3mm light-emitting diode njenge-T-1, φ5mm njenge-T-1 (3/4), kanyeφ4.4mm njenge-T-1 (1/4).

3. Ngokusho kwe-isakhiwoama-diode akhipha ukukhanya

Ngokwesakhiwo se-LED, kukhona konke ukufakwa kwe-epoxy, ukufakwa kwe-epoxy eyisisekelo sensimbi, ukufakwa kwe-epoxy eyisisekelo se-ceramic kanye nokufakwa kwengilazi.

4. Ngokushoukuqina okukhanyayo kanye nogesi osebenzayo

Ngokusho kwamandla akhanyayo kanye nokusebenza kwamanje kuhlukaniswe ngokukhanya okuvamile kwe-LED (ukuqina okukhanyayo okungu-100mCD);
Ukukhanya okuphakathi kuka-10 no-100mCD kubizwa ngokuthi i-high brightness light-emitting diode.
Amandla okusebenza e-LED ejwayelekile asukela ku-mA eyishumi kuya ku-mA eyishumi, kuyilapho amandla okusebenza e-LED yamanje aphansi engaphansi kuka-2mA (ukukhanya kufana nokwepayipi elivamile elikhipha ukukhanya).
Ngaphezu kwezindlela zokuhlukanisa ezingenhla, kukhona nezindlela zokuhlukanisa ngokwezinto ze-chip kanye nomsebenzi.

UTed: isihloko esilandelayo simayelana ne-LED. Kuyini? Sicela uhlale ubukele.