Njengohlobo olutsha lomthombo wokukhanyisa, i-LED (i-Light Emitting Diode) ineenzuzo zokusebenzisa amandla aphezulu, ubomi obude, kunye nemibala eqaqambileyo, kwaye iyathandwa ngakumbi phakathi kwabantu. Nangona kunjalo, ngenxa yeempawu ezibonakalayo ze-LED ngokwayo kunye nenkqubo yokuvelisa, ubukhulu bokukhanya kwemibala eyahlukeneyo buya kuhluka xa umthombo wokukhanya we-LED ukhupha ukukhanya, okuya kuchaphazela ukuveliswa kombala weemveliso zokukhanyisa i-LED. Ukuze kusonjululwe le ngxaki, kwavela iCRI (Colour Rendering Index, inguqulelo yesiTshayina “color restoration index”).
Isalathisi se-CRI sesinye sezibonakaliso ezibalulekileyo zokulinganisa ukuveliswa kombala weemveliso zokukhanyisa i-LED. Ukubeka ngokulula, isalathisi se-CRI sixabiso lokuhlola elihambelanayo elifunyenwe ngokuthelekisa ukuveliswa kombala komthombo wokukhanya phantsi kweemeko zokukhanya kunye nomthombo wokukhanya kwendalo phantsi kweemeko ezifanayo. Uluhlu lwexabiso lesalathisi se-CRI ngu-0-100, ixabiso eliphezulu, ngcono ukuveliswa kombala womthombo wokukhanya kwe-LED, kwaye ngokusondeleyo umphumo wokuvelisa umbala kukukhanya kwendalo.
Kwizicelo ezisebenzayo, uluhlu lwexabiso lwesalathisi se-CRI alulingani ngokupheleleyo nomgangatho wokuvelisa umbala. Ngokukodwa, iimveliso zokukhanyisa i-LED kunye nesalathisi se-CRI ngaphezu kwe-80 sele ikwazi ukuhlangabezana neemfuno zabantu abaninzi. Kwezinye iimeko ezikhethekileyo, ezifana nemiboniso yobugcisa, imisebenzi yonyango kunye nezinye iimeko ezifuna ukuveliswa kombala ophezulu-ngokuchanekileyo, kuyimfuneko ukukhetha izibane ze-LED kunye nesalathisi esiphezulu se-CRI.
Kufuneka kuqatshelwe ukuba isalathisi se-CRI asikho kuphela isalathisi sokulinganisa ukuveliswa kombala weemveliso zokukhanyisa i-LED. Ngophuhliso oluqhubekayo lwetheknoloji ye-LED, ezinye izikhombisi ezintsha zingeniswa ngokuthe ngcembe, njenge-GAI (i-Gamut Area Index, ukuguqulelwa kwesiTshayina "isalathisi sendawo ye-color gamut") kunye nokunye.
Ngamafutshane, isalathisi se-CRI sesinye sezibonakaliso ezibalulekileyo zokulinganisa ukuveliswa kombala wemveliso yokukhanyisa i-LED, kwaye inexabiso eliphezulu elisebenzayo. Ngophuhliso oluqhubekayo lwetekhnoloji, kukholelwa ukuba ukuveliswa kombala weemveliso zokukhanyisa i-LED kuya kuba ngcono kwaye kube ngcono kwixesha elizayo, ukudala indawo ekhululekile kunye nendalo yokukhanyisa abantu.
Ixesha lokuposa: May-16-2023