I-visor yenzelwe ukuthintela i-glare yelanga kwaye kuthintele impembelelo yelanga. Abanye banokubuyiselwa umva, ukuze bahlengahlengise ukubonakaliswa kwelanga emehlweni, kuphephe ukuvela kweengozi, kwaye ube nefuthe elingcono lokupholisa. Ingasetyenziswa ngaphakathi, njengokubona kwemoto: I-visor ikwanokuba nzima ukwalatha ukukhanya kwelanga emotweni, inefuthe elingcono lokupholisa, kodwa linokukhusela ideshibhodi, isihlalo sesikhumba. Ilanga lingasetyenziswa ngaphandle.
Sebenzisa ngaphandle
Irediyo evumelekileyo ye-curvature (R) kufuneka ingaphezulu kwe-180 amaxesha ubukhulu beplate.
Umzekelo: Umzekelo, ukuba iBhodi ye-3MMMMMMMMMPC isetyenziswa ngaphandle, irediyo yayo ye-curvature kufuneka ibe yi-3mm × 180 = 540mm = 54cm. Ke ngoko, irediyo eyenzelwe i-curvature ifanele ibe ubuncinci i-54cm. Nceda ujonge kwitafile yobuncinci obusezantsi.
Ukusetyenziswa kweNdawo
Irediyo evunyiweyo ye-curvature (R) kufuneka ingaphezulu kwe-150 ubude ubungqingqwa beplate.
