Isayensi edumileyo yeentlobo zeeglasi ezikhoyo kwimarike ngoku

Iiglasi zokufunda:
Indlela esebenza ngayo: Isetyenziselwa ukulungisa i-presbyopia, iilensi zeeglasi zokufunda ziilensi zeconvex ezinceda amehlo agxile.
Uhlobo: Iiglasi zokufunda ezijonge enye, zinokubona kufutshane kuphela; Kukho iiglasi zokufunda ezimbini okanye ezigxile kwizinto ezininzi, ezinokuhlangabezana neemfuno zokubona kude nokuvala ngaxeshanye.

Iindondo zelanga:
Umsebenzi: Isetyenziselwa ikakhulu ukuvala ukukhanya kwelanga kunye nemitha ye-ultraviolet ukunciphisa ukuvuselela kunye nomonakalo wokukhanya kwelanga emehlweni.
Umbala weLens: Imibala eyahlukeneyo yeelensi ifanelekile kwindawo ezahlukeneyo kunye nemisebenzi. Ngokomzekelo, iilensi ezimpunga zibonelela ngombono wombala wendalo kwaye zifanelekile kwiimeko ezahlukeneyo zokukhanya; Iilensi eziBrown zandisa umahluko wombala ngelixa zinciphisa ukukhanya, zilungele ukuqhuba kunye nezinye izigcawu; Iilensi eziphuzi ziphucula umahluko, umphumo obonakalayo ungcono ekukhanyeni okuphantsi okanye kwiimeko ezinamafu, ezihlala zisetyenziselwa ukushushuluza, ukuloba kunye neminye imidlalo.

Iiglasi ezitshintsha umbala:
Umgaqo: I-lens iqulethe izinto ezikhethekileyo zeekhemikhali (ezifana ne-silver halide, njl.), kwi-ultraviolet okanye i-irradiation yokukhanya okunamandla kuya kwenzeka ukusabela kweekhemikhali, yenza umbala we-lens ube mnyama; Xa ukukhanya kuncitshisiwe, ukusabela kuguqulwa, kwaye umbala we-lens ngokuthe ngcembe uba lula kwaye ubonakale.
Izinto eziluncedo: Iiglasi zeeglasi zinokuhlangabezana neemfuno zokusetyenziswa kwangaphakathi nangaphandle ngexesha elifanayo, zilungele kwaye zikhawuleza, zigweme inkathazo yokutshintshwa rhoqo kweeglasi.