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Magalasi Owonera a Semi Finished Progressive 1.56 Optical Gray
Chizindikiro cha refractive cha lens ndi chokwera, ma lens opyapyala, kuchuluka kwa ma lens kumakhala kwakukulu, kuuma kumakhala bwino, m'malo mwake, chizindikiro cha refractive chotsika, lens imakhala yokhuthala, kuchuluka kwa ma lens kumakhala kochepa, kuuma kumakhala kofooka, galasi lamphamvu kwambiri, kotero chizindikiro cha refractive nthawi zambiri chimakhala pafupifupi 1.7, ndipo kuuma kwa filimu ya resin kumakhala kofooka, chizindikiro cha refractive ndi chochepa, chidutswa cha resin chomwe chili pamsika pakadali pano ndiye chizindikiro chodziwika kwambiri cha refractive cha 1.499 kapena kuposerapo, Mtundu woonda kwambiri ndi wabwino pang'ono, womwe uli ndi chizindikiro cha refractive cha pafupifupi 1.56 ndipo umagwiritsidwanso ntchito kwambiri.
