Ukubaluleka kwelensi elungileyo esele igqityiwe:
1. Iilensi ezigqityiweyo kufuneka zibe nesantya esiphezulu esifanelekileyo ekuchanekeni kwamandla, ukuzinza kunye nomgangatho wezithambiso.
2. Iimpawu eziphezulu ze-optical, imiphumo emihle ye-tinting kunye ne-hard-coating / i-AR ye-coating results, ukuqonda ubuninzi bomthamo wemveliso nazo ziyafumaneka kwi-lens efanelekileyo ye-semi-finished.
3. Iilensi ezigqityiweyo ze-semi-semi ziyakwazi ukuphinda zisebenze kwimveliso ye-RX, kwaye njengeelensi ezigqityiweyo, kungekhona nje umgangatho ongaphezulu, zigxininise ngakumbi kumgangatho wangaphakathi, njengeeparamitha ezichanekileyo nezizinzileyo, ngokukodwa kwi-lens ye-freeform ethandwayo.
Iithegi:I-1.56 i-resin lens, i-1.56 i-semi-finished lens