Ziziphi ii-LED kwaye zisebenza njani?
I-LEDimele iidiode ekhupha ukukhanya.Iimveliso zokukhanyisa i-LED zivelisa ukukhanya ukuya kwi-90% ngokufanelekileyo ngakumbi kunezibane ze-incandescent.Zisebenza njani?Umsinga wombane udlula kwi-microchip, ekhanyisa imithombo emincinci yokukhanya esiyibiza ngokuba zii-LED kwaye umphumo ubonakala ukukhanya.Ukuthintela imiba yokusebenza, ubushushu be-LED buvelisa bufunxwa kwisitya sobushushu.
Ubomi beMveliso yokuKhanya kwe-LED
Ubomi obuncedo beemveliso zokukhanyisa izibane ze-LED zichazwa ngokwahlukileyo kunezinye izibane zokukhanya, ezifana ne-incandescent okanye i-compact fluorescent lighting (CFL).Ii-LED ngokuqhelekileyo "azitshi" okanye zisilele.Endaweni yoko, bafumana 'ukuhla kwe-lumen', apho ukuqaqamba kwe-LED kuncipha kancinci ngokuhamba kwexesha.Ngokungafaniyo ne-incandescent bulbs, i-LED "ixesha lokuphila" isekwe kwingqikelelo xa ukukhanya kuncipha ngama-30 ekhulwini.
Ii-LED zisetyenziswa njani ekuKhanyeni?
Ii-LED zifakwe kwiibhalbhu kunye nezixhobo zokusetyenziswa kokukhanyisa ngokubanzi.Ubungakanani obuncinci, ii-LED zibonelela ngamathuba oyilo awodwa.Ezinye izisombululo zebhalbhu ze-LED zinokufana ngokwasemzimbeni neeglowubhu eziqhelekileyo kwaye zihambelane ngcono nenkangeleko yebhalbhu zesintu.Ezinye izibane ze-LED zinokuba nee-LED ezakhelwe ngaphakathi njengomthombo wokukhanya osisigxina.Kukwakho neendlela ezixubeneyo apho “ibhalbhu” engeyiyo eyesintu okanye ifomathi yomthombo wokukhanya enokuthathelwa indawo isetyenzisiweyo kwaye iyilelwe ngokukodwa isisitho esisodwa.Ii-LEDs zinika ithuba elikhulu lokuqamba izinto ezintsha kwizinto zokukhanya kwaye zilungele ububanzi bezicelo kunetekhnoloji yokukhanya kwendabuko.
ii-LED kunye nobushushu
Ii-LED zisebenzisa i-heat sinks ukuze zifunxe ubushushu obuveliswa yi-LED kwaye bubuchithe kwindawo engqongileyo.Oku kugcina ii-LEDs ekutshiseni kunye nokutshisa ngaphandle.Ulawulo lobushushu ngokuqhelekileyo yeyona nto ibalulekileyo ekusebenzeni ngempumelelo kwe-LED ebomini bayo.Ukuphakama kweqondo lokushisa apho ii-LED zisebenza khona, ngokukhawuleza ukukhanya kuya kuncipha, kwaye ubomi obuluncedo buya kuba bufutshane.
Iimveliso ze-LED zisebenzisa iindlela ezahlukeneyo zokuyila ubushushu bokushisa kunye noqwalaselo ukulawula ubushushu.Namhlanje, ukuqhubela phambili kwizinto eziphathekayo kuye kwavumela abavelisi ukuba bayile iibhalbhu ze-LED ezihambelana nemilo kunye nobukhulu beebhalbhu ze-incandescent zendabuko.Kungakhathaliseki ukuyila kobushushu, zonke iimveliso ze-LED ezifumene i-ENERGY STAR ziye zavavanywa ukuze ziqinisekise ukuba zilawula ngokufanelekileyo ubushushu ukwenzela ukuba ukukhanya okukhanyayo kugcinwe ngokufanelekileyo ekupheleni kobomi bayo obulinganisiweyo.
Ukukhanya kwe-LED kwahluke njani kuneminye imithombo yokukhanya, efana ne-incandescent kunye neCompact Fluorescent (CFL)?
Ukukhanya kwe-LED kuyahluka kwi-incandescent kunye ne-fluorescent ngeendlela ezininzi.Xa iyilwe kakuhle, ukukhanya kwe-LED kusebenza ngakumbi, kuyaguquguquka, kwaye kuhlala ixesha elide.
Ii-LED ziyimithombo yokukhanya "yezikhokelo", oku kuthetha ukuba zikhupha ukukhanya kwindlela ethile, ngokungafani ne-incandescent kunye ne-CFL, ekhupha ukukhanya kunye nokushisa kuzo zonke iindlela.Oko kuthetha ukuba ii-LED ziyakwazi ukusebenzisa ukukhanya kunye namandla ngokufanelekileyo kubuninzi bezicelo.Nangona kunjalo, kukwathetha ukuba ubunjineli obuphucukileyo buyadingeka ukuvelisa ibhalbhu yokukhanya ye-LED ekhanyisa ukukhanya macala onke.
Imibala eqhelekileyo ye-LED ibandakanya i-amber, ebomvu, eluhlaza, kunye neblue.Ukuvelisa ukukhanya okumhlophe, ii-LED zombala ohlukeneyo zidibaniswe okanye zigutyungelwe ngezinto ze-phosphor eziguqula umbala wokukhanya kwisibane esiqhelekileyo "esimhlophe" esisetyenziswa kumakhaya.Iphosphor yinto etyheli egquma ezinye ii-LED.Ii-LED ezinemibala zisetyenziswa ngokubanzi njengezibane zesignali kunye nezibane zesalathisi, njengeqhosha lamandla ekhompyutheni.
Kwi-CFL, umsinga wombane uhamba phakathi kwe-electrode ekupheleni kwetyhubhu equkethe iigesi.Oku kusabela kuvelisa ukukhanya kunye nobushushu be-ultraviolet (UV).Isibane se-UV siguqulwa sibe kukukhanya okubonakalayo xa sibetha i-phosphor coating ngaphakathi kwebhalbhu.
Ixesha lokuposa: Mar-27-2023
