-
Magalasi Owonera a 1.56 Okhala ndi Semi Finished Single Vision Blue Cut Optical Lens
Kawirikawiri, pali mitundu isanu ndi umodzi ya refractive index ya ma resin lens: 1.50, 1.56, 1.60, 1.67, 1.71 ndi 1.74. Ngati mukufuna refractive index yapamwamba, mungaganizire magalasi agalasi okha, omwe ali ndi 1.80 ndi 1.90 yoti musankhe. Ndi chifukwa chakuti magalasi agalasi sagwiritsidwa ntchito kawirikawiri masiku ano, ngakhale mapepala agalasi ali ndi ma refractive index ochepa, monga 1.60 ndi 1.71.
