Yini i-LED?

Futhi bona i-laser diode.

I-diode ekhipha ukukhanya (i-LED) iyisetshenziswa semiconductor ekhipha ukukhanya okubonakalayo lapho amandla kagesi edlula kuyo. Ukukhanya akukhanyi ngokukhethekile, kepha kuma-LED amaningi kuyi-monochromatic, kwenzeka nge-wavelength eyodwa. Okukhiphayo okuvela ku-LED kungahle kusuka kokubomvu (ebangeni elingaba ama-nanometer angama-700) kuye ku-blue-violet (cishe ama-nanometer angama-400). Amanye ama-LED akhipha amandla e-infrared (IR) (ama-nanometer ayi-830 noma ngaphezulu); ithuluzi elinjalo laziwa njenge imodi yokuhambisa infrared (IRED).

I-LED noma i-IRED iqukethe izinto ezimbili zokwenziwa okusetshenzisiwe okubizwa ngokuthi Uhlobo lwe-P-semiconductors futhi Uhlobo lwe-Nic semiconductors. Lezi zinto ezimbili zibekwe ngokuxhumana ngqo, zakhe isifunda esibizwa ngokuthi i Ukuhlangana kwe-PN. Ngalokhu, i-LED noma i-IRED ifana nezinye izinhlobo eziningi zedayode, kepha kukhona umehluko obalulekile. I-LED noma i-IRED inephakeji esobala, evumela amandla abonakalayo noma we-IR ukuthi adlule. Futhi, i-LED noma i-IRED inendawo enkulu ye-PN-junction enobuso bayo obenzelwe uhlelo lokusebenza.

Izinzuzo zama-LEDs nama-IRED, uma kuqhathaniswa namadivayisi wokukhanyisa we-incandescent ne-fluorescent, afaka:

• Isidingo samandla aphansiIzinhlobo eziningi zingaqhutshwa ngogesi webhethri.

• Ukusebenza kahle kakhulu: Amandla amaningi anikezwa i-LED noma i-IRED aguqulwa abe yimisebe efomini elifunayo, akhiqizwe ukushisa okuncane.

• Impilo ende: Uma ifakwe kahle, i-LED noma i-IRED ingasebenza amashumi eminyaka.

Izicelo ezijwayelekile zifaka:

• Izibani zesikhombi: Lokhu kungaba yimibuso emibili (okungukuthi, ukuvala / ukuvala), i-bar-graph, noma i-alfabhethi yezinombolo ezinokubalwa.

• Ukukhanyiswa kwephaneli ye-LCD: Ama-LED amhlophe akhethekile asetshenziswa ekhompyutheni ekhombisa iphaneli yophahla.

• Ukuhanjiswa kwedatha ye-Fibre optic: Ukulula kokushintshashintsha kwegama kuvumela umkhawulokudonsa wokuxhumana obanzi onomsindo omncane, okuholela kusivinini esikhulu nokunemba.

• Ukulawula kude: Iningi lama- "remotes" asekhaya lokuzijabulisa lisebenzisa ama-IRED ukudlulisa imininingwane kuyunithi enkulu.

• I-Optoisolator: Izitezi ohlelweni lwe-elekthronikhi zingaxhunywa ndawonye ngaphandle kokuxhumana okungafuneki.