Ha lehlabula le ntse le atamela, ho roala likhalase tsa letsatsi tse fesheneng ho fetohile tloaelo.Ha re tsamaea seterateng, re tla bona batho ba roetseng likhalase tsa letsatsi.Leha ho le joalo, bakeng sa metsoalle e nang le myopia le litlhoko tse khethehileng tsa mahlo, ba lokela ho roala likhalase tsa myopia le likhalase tsa letsatsi.Ka hona, tharollo e bonolo le e sireletsehileng haholoanyane ke ho iketsetsa likhalase tse mebala-bala tse lumellanang le tekanyo ea hau, e le hore bothata bo tla rarolloa.
Lilense tsa Photochromic, e tsejoang hape e le "light intelligent lenses", haholo-holo e sebelisoa ho sireletsa mahlo le ho fokotsa mokhathala oa pono ka ho fokotsa khanya e matla, mahlaseli a UV le leseli le leputsoa ho kena mahlong.Lintho tse bobebe tse bobebe (tse kang silver halide) li kenngoa ka har'a lense 'me li pepesehile mahlaseli a kotsi le leqhubu le lekhutšoanyane le bonahalang,' mala o fetoha o lefifi 'me phetisetso ea leseli e fokotseha.Libakeng tse ka hare kapa tse lefifi, phetisetso ea leseli ea lense e ea ntlafatsoa, 'me' mala oa nyamela 'me khanya e tsosolosoa.Photochromism ea lilense e iketselitse ebile e ka khutlisetsoa morao.Lilense tsa photochromic li ka fetola phetisetso ea leseli ka ho fetola 'mala oa lense, e le hore leihlo la motho le khona ho ikamahanya le liphetoho tsa leseli le haufi.
Lilense tse mebala-bala
Lilense tse mebala-balabua ka ts'ebeliso ea lisebelisoa tse ling tsa mebala nakong ea ts'ebetso ea tlhahiso ea lense ho etsa hore lilense li bonahale li le mebala le ho monya maqhubu a itseng a khanya.Lilense tse tint hangata li sebelisoa likhalaseng tsa letsatsi.Ha e bapisoa le lilense tse tloaelehileng tsa resin, e na le khanyetso e matla ea UV le ho hanyetsa mahlaseli.
Lilense tse tint li ntse li hola ka potlako matsatsing ana.Ho na le mefuta e mengata ea mebala ea lense.Ha ho loketse, o hloka ho batla keletso ho lingaka tsa mahlo ho khetha 'mala o loketseng oa lense.E loketse batho ba bang ba nang le liso tsa fundus, macular degeneration, le photophobia ea mahlo ka mor'a ho buuoa ka cataract.Batho ba nang le mafu a mahlo ba lokela ho khetha lilense tse lumellanang le 'mala oa mahlo a bona.
Lilense tsa polarizedke lilense tse entsoeng ho latela molao-motheo oa polarization ea leseli, tse nang le mosebetsi oa ho felisa mahlaseli, ho etsa hore pono e hlake le ho feta ea tlhaho.Li ka ntlafatsa pono ea mokhanni le ho eketsa monate oa ho khanna.
Phello ea lilense tsa polarizing ke ho sefa khanya, ho etsa hore sebaka sa pono se hlake le sa tlhaho.Ho tšoana le molao-motheo oa likharetene tse foufetseng, khanya e lokisoa hore e kene ka leihlong ka tsela e le 'ngoe, ka tlhaho e etsa hore sebaka se shebahala se le bonolo ebile se sa khahle.Ntlafatsa mebala le ho bapisa, ho matlafatsa boiketlo le polokeho ea ho khanna, thibela mahlaseli a kotsi, 'me ke lisebelisoa tsa bohlokoa bakeng sa bakhanni ba nako e telele le ba chesehelang ho thelelisa.
Nako ea poso: May-18-2023