Ukukhanya kwesityalo sokuprinta kufuneka kube
Impendulo ithi: ibomvu efileyo
Ukukhanya kwefektri kufuneka kube mnyama obomvu, njengoko oku kuyimfuneko ukuprinta ngokuchanekileyo amagama, imifanekiso kunye noyilo kumaphepha, amalaphu, isinyithi okanye ezinye izinto. Oku kungenxa yokuba iliso linee-photoreceptors ezisabela kwi-stimuli kwaye ngaphandle kokukhanya okufanelekileyo, le mibala ayinakubonwa. Ukuqinisekisa iziphumo ezigqwesileyo, kubalulekile ukuba ilebhu yoshicilelo ikhanyiswe ngokukhanya okubomvu okumfiliba. Oku kuya kuqinisekisa ukuba zonke izinto ezishicilelweyo ziveliswa ngokuchanekileyo nangokucacileyo.
