1.523 Glass Bifocal Photochromic Photogrey Optical Lense

Ha tokiso ea mahlo a motho e fokola ka lebaka la lilemo, o hloka ho lokisa pono ea hae ka thoko bakeng sa pono e hole le e haufi.Ka nako ena, hangata o hloka ho roala likhalase tse peli ka thoko, e leng ntho e sa thabiseng haholo.Ka hona, hoa hlokahala ho sila matla a mabeli a fapaneng a refractive holim'a lense e le 'ngoe ho fetoha lilense libakeng tse peli.Lilense tse joalo li bitsoa lilense tsa bifocal kapa likhalase tsa bifocal.

Mofuta oa Fusion:ke ho kopanya lisebelisoa tsa lense ka index e phahameng ea refractive sebakeng sa concave holim'a poleiti e kholo ka mocheso o phahameng, 'me index ea refractive ea poleiti e kholo e tlaase.Ebe u matha ka holim'a karoloana e nyenyane ho etsa hore ho kobeha ha karoloana e ka tlaase ho lumellana le karolo e ka sehloohong.Ha ho na moelelo oa ho arola meeli.Ho bala ho eketsehileng A ho ipapisitse le matla a refractive F1 a bokaholimo ba sebaka se hole sa pono, curvature FC ea arc ea pele ea concave le karolelano ea fusion.Karolelano ea fusion ke kamano e sebetsang lipakeng tsa index ea refractive ea lisebelisoa tsa lense tsa fusion ea mekhahlelo e 'meli, moo n e emelang index ea refractive ea khalase e kholo (hangata khalase ea moqhaka) mme ns e emela index ea refractive ea letlapa le tlase (galase ea lejoe le thata) le boleng bo boholo, ebe karolelano ea motsoako k=(n-1)/(nn), kahoo A=(F1-FC)/k.Ho ka bonoa ho tsoa ho foromo e kaholimo hore ka khopolo, ho fetola sekhahla sa bokaholimo ba poleiti e kholo, sekhahla sa concave arc curvature le sub-plate refractive index li ka fetola tekanyo e haufi e eketsehileng, empa ha e le hantle, e fumaneha ka kakaretso ka ho fetola. sub-plate refractive index.Letlapa la 8-2 le bonts'a index ea refractive ea likhalase tsa lejoe le thata tse sebelisoang lefats'eng ho etsa liipone tse fapaneng tse haufi tse kopanyang.