Umugozi wa optique, imashini icapura imiyoboro ntigomba kuba igifuniko gisohoka, hejuru yubusa, ku nkombe nziza, nta burr na peeling phenomenon, imbaraga zingana ≥2.5N, ubushyuhe bwo kwimura muri rusange ni 60 ℃ -90 ℃, burashobora kandi guhinduka ukurikije uko ibintu bimeze ry'umusaruro w'abakiriya.