Lense ea 1.71 Lebitso le felletseng la 1.71 refractive index lens, e nang le index e phahameng ea refractive, transmittance e phahameng, litšoaneleho tse phahameng tsa nomoro ea Abbe, maemong a degree e tšoanang ea myopia, e ka fokotsa botenya ba lense haholo, ea fokotsa boleng ba lense, ka nako e ts'oanang. nako, etsa lense ho feta hloekile le khanyang, ha ho bonolo ho hasanya mookoli lijo-thollo. Ho fumanoe hore ho kenyelletsa cyclic sulfide resin ka har'a lisebelisoa tsa lense ho ka ntlafatsa index ea refractive ea lense, empa resin e ngata haholo ea cyclic sulfide e tla lebisa phokotsong ea phetiso ea leseli le ho phatloha ha thepa. Ka ho laola ka nepo litaba tsa ring sulfur resin ka 1.71KR resin, lense ea 1.71 e fihlela index e phahameng ea refractive le nomoro ea abbe ha e ntse e netefatsa phetiso e ntle ea khanya, phallo e tlase le pono e hlakileng haholoanyane.