Yintoni i-LED? Ikhanyisa izinto ozithengayo lonke ixesha
I-LED iyindawo yonke; kukho ithuba elihle lokuba ufunda eli nqaku malunga ne-LED ngokukhanya okuphuma kwi-LED enye okanye ngaphezulu. Ngoko, yiyiphi i-LED i-LED? Uza kufumana.
Inkcazo yeDVD
I-LED imele i-Diode-Emitting Diode, isixhobo sogesi-elektroni esenziwe ngeendidi ezimbini ezahlukeneyo zezinto ezihamba nge- semiconductor . Ngokufanayo kwimbono yecandelo le-semiconductor elisetyenziswe kwiinkalo ezahlukeneyo zekhomputha, njenge- RAM , iprojekthi, kunye ne-transistors, ii-diodes zixhobo ezivumela ukuhamba kombane ukuba kwenzeke kwindlela enye kuphela.
I-LED yenza into efanayo: Ikhusela ukuhamba kombane kwicala elinye ngelixa livumela ukuba lihambe ngokukhululekile kwelinye. Xa umbane ngefowuni uhamba ngaphesheya kwendibaniso phakathi kweentlobo ezimbini zezinto eziphathekayo ze-semiconductor, amandla anikezelwa ngendlela yokukhanya.
History of LED
Ikhredithi kwimeko yokuqala yokuqala ye-LED ikwa-Oleg Losev, umvelisi waseRussia obonise i-LED ngowe-1927. Kuthathe cishe iminyaka emine ngaphambi kokuba kusetyenziswe ukusetyenziswa, kodwa.
I-LED yokuqala iqale ukuvela kwizicelo zorhwebo ngo-1962, xa iTexas Instruments zenza i-LED yanikezela ukukhanya kwi-infrared spectrum. Ezi LED zangaphambili zazisetyenziselwa ngokubanzi kwizixhobo zokulawula ezikude, njengamaxesha okuqala amathelevishini .
I-LED yokuqala yokukhanya ebonakalayo nayo yabonakala ngo-1962, ikhupha umbane obomvu kodwa obonakala obomvu. Elinye ilishumi laliza kudlulela ngaphambi kokuba ukhenkceko luya kunyuka kakhulu, kwaye imibala eyongezelelweyo, ngokugqithiseleyo ephuzi kunye ne-red-orange, yafunyanwa.
Ii-LED zathatha ngo-1976 ngokuqaliswa kokukhazimula okuphezulu kunye neendlela eziphezulu zokusebenza ezinokusetyenziswa kwiintlobo ezahlukeneyo zezicelo, kubandakanywa nokunxibelelana kunye nezibonakaliso zokusetyenziswa kwezixhobo. Ekugqibeleni, ii-LED zazisetyenziselwa kubabala njengemiboniso yenani.
Ubomvu, Ubomvu, Ubomvu, I-Red-Orange ne-Green Green Imibala Ekhanyayo
Ama-LED ekupheleni kweminyaka yama-70 kunye neyokuqala yama-80 ayedluliselwe kumbala embalwa nje; obomvu, ophuzi, obomvu-olunebomvu, kunye nohlaza kwakuyimbala evelele. Ngoxa kwakunokwenzeka kwibhule ukuvelisa ii-LED ezinemibala eyahlukileyo, indleko yemveliso igcinwe isongezo kwi-spectrum ye-LED ukusuka ekuveliseni i-mass.
Kwakucatshangelwa ukuba ukukhanya kwe-LED ekukhanyeni kwemibhobho ebomvu kuya kuvumela ii-LED ukuba zisetyenziswe ngokubonisa imibala epheleleyo. Ukukhangela kwakukho i-LED ebomvu ebonakalayo ebonakalayo, ekuthi, xa idibene ne-LED ebomvu nephuzi, iyakwazi ukuvelisa imibala emininzi. I-LED yokuqala ye-blue bhanya ebomvu yenza i-start-start yayo ngo-1994.
Kodwa ingcamango yokusebenzisa ii-LED ngokubonakalisa ukukhanya kweembonakalo azizange zide kakhulu kude kube yilapho kuveliswa i-LED emhlophe, eyenzeka kungekudala emva kwe-LED esebenzayo.
Nangona ungabona i-LED ye-TV ye-TV okanye i-Monitor ye-LED, ezininzi zeentlobo zeembonakaliso zisebenzisa i-LCD (I-Crystal Crystal Display) yecandelo lokubonisa, kwaye isebenzise ii-LED ukukhanyisa ii-LCD . Oko akuthethi ukubonakalisa okwenyaniso okusekelwe kwi-LED akufumaneki kuma-monitor kunye ne-TV ngokusebenzisa i- OLED (i-Organic LED) iteknoloji ; bavele bathambekele ekubeni baxabisa kwaye kunzima ukuvelisa kwizikali ezinkulu. Kodwa njengoko inkqubo yokuvelisa iqhubeka ikhula, kunjalo ukukhanya kwe-LED.
Ukusetyenziswa kwee-LED
I-teknoloji ye-LED iyaqhubeka ikhula kwaye iindawo ezahlukeneyo zokusetyenziswa kwee-LED sele zifunyenwe, kubandakanywa:
- Ii-LED ezifakwe kwi-Infrared ezisetyenziselwa ukulawula izixhobo. Hlola ukuba kude kweTV; amathuba ukuba kukho i-infrared LED kwiphepha loshishino olukude.
- Ii-LED zisetyenzisiwe njengezibane ezibonisa izixhobo kunye nezixhobo. Ngesinye isikhathi, i-neon kunye nezibane ze-incandescent zazisetyenziswa ngokuqhelekileyo. Ngoku ii-LED, ezisebenza ngokugqithiseleyo, zinobomi obude, kwaye ngokuqhelekileyo zindleko eziphantsi, zithathile le ndlela yokusetyenziswa.
- Ii-LED zisetyenzisiweyo kwimiboniso, kubandakanywa iziboniso ze-alphanumeric ezibonwa kuyo yonke into ukusuka kubalimi bokuqala ukuya kwiiwashi, iimpawu zentengiso kunye neendlela zokuhamba. Futhi ungakulibali ukuba mhlawumbi i-TV yakho kunye nekhompyutheni yekhomputha zisebenzisa ii-LED ukuze zikhanyise umboniso.
- Kwaye ke, asikwazi ukulibala ukukhanya; Iimpawu ze-LED zihamba ngendlela yazo yokutshintsha ngokupheleleyo i-bulb light incandescent eyenziwe nguTomas Edison. Ngendlela, i-fluorescents kumakhaya nakwiindawo zokurhweba ziyabona nokusetyenziswa ngaphantsi.
Ii-LED ziza kuqhubeka zisetyenziselwa kwimveliso eyahlukileyo, kwaye kusetyenziswe iilitsha lonke ixesha.