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1.56 Semi Finished Bifocal Photo grey optical lenses
Ka kakaretso, likhalase tsa myopia tse fetolang mebala li ke ke tsa tlisa boiketlo le botle feela empa hape li khona ho hanela mahlaseli a kotsi le mahlaseli a kotsi, li ka sireletsa mahlo, lebaka la ho fetola 'mala ke hore ha lense e etsoa, e kopantsoe le lintho tse sa utloisiseng khanya. , tse kang silver chloride, silver halide (e tsejoang hammoho e le silver halide), le palo e nyenyane ea copper oxide catalyst.Nako le nako ha halide ea silevera e bonesoa ke khanya e matla, leseli le tla bola 'me e be likaroloana tse ngata tsa silevera tse ntšo tse arolelanoang ka lense.Ka hona, lense e tla bonahala e le lerootho ebe e thibela tsela ea khanya.Ka nako ena, lense e tla ba mebala, e ka thibelang khanya ho fihlela sepheo sa ho sireletsa mahlo.
