Ukuhlukaniswa kwezinto ezintathu ezinkulu
Amalensi engilazi
Ezinsukwini zokuqala, izinto eziyinhloko zamalensi kwakuyingilazi ekhanyayo. Lokhu kwakungenxa yokuthi amalensi engilazi ekhanyayo anokukhanya okuphezulu, ukucaca okuhle, kanye nezinqubo zokukhiqiza ezivuthiwe nezilula. Kodwa-ke, inkinga enkulu ngamalensi engilazi ukuphepha kwawo. Anezinga eliphansi lokumelana nokushayisana futhi kulula kakhulu ukuwaphula. Ngaphezu kwalokho, anzima futhi awakhululekile ukuwagqoka, ngakho-ke ukusetshenziswa kwawo emakethe yamanje kulinganiselwe.
Amalensi e-resin
Amalensi e-resin angamalensi optical enziwe nge-resin njengento eluhlaza, acutshungulwa futhi ahlanganiswe ngezinqubo zamakhemikhali eziqondile kanye nokupholisha. Njengamanje, into esetshenziswa kakhulu kumalensi yi-resin. Amalensi e-resin anesisindo esilula uma kuqhathaniswa namalensi engilazi optical futhi anokumelana okunamandla kakhulu kunelensi yengilazi, okwenza kube lula ukuwaphula futhi ngaleyo ndlela kuphephe ukuwasebenzisa. Ngokuphathelene nentengo, amalensi e-resin nawo angabizi kakhulu. Kodwa-ke, amalensi e-resin anokumelana nokuklwebheka okubi, asheshe ancibilike, futhi avame kakhulu ukuklwebheka ebusweni.
Amalensi e-PC
Amalensi e-PC angamalensi enziwe nge-polycarbonate (izinto ze-thermoplastic) ezakhiwa ngokushisa. Lokhu kuvela ocwaningweni lohlelo lwesikhala futhi kwaziwa nangokuthi amalensi esikhala noma amalensi e-cosmic. Ngenxa yokuthi i-PC resin iyinto ye-thermoplastic esebenza kahle kakhulu, ifaneleka ekwenzeni amalensi ezibuko zamehlo. Amalensi e-PC anokumelana okuhle kakhulu nokushayisana, cishe awakaze aqhekeke, futhi aphephile kakhulu ukuwasebenzisa. Ngokuphathelene nesisindo, alula kunamalensi e-resin. Kodwa-ke, amalensi e-PC angaba nzima ukuwacubungula, okwenza abize kakhulu.
Izinto Ezifanelekela Asebekhulile
Kubantu asebekhulile ababhekene ne-presbyopia, kunconywa ukuthi bakhethe amalensi engilazi noma amalensi e-resin. I-Presbyopia ngokuvamile idinga izibuko zokufunda ezisebenzisa amandla aphansi, ngakho-ke isisindo samalensi asiyona inkinga enkulu. Ngaphezu kwalokho, abantu asebekhulile ngokuvamile abasasebenzi kakhulu, okwenza amalensi engilazi noma amalensi e-resin aqinile kakhulu angaklwebhi, kuyilapho futhi kuqinisekiswa ukusebenza kahle kokukhanya okuhlala isikhathi eside.
Izinto Ezifanele Abantu Abadala
Amalensi e-resin afanele abantu abadala abaseminyakeni ephakathi kanye nentsha. Amalensi e-resin anikeza izinketho eziningi, okuhlanganisa ukuhlukanisa okusekelwe ku-refractive index, ukusebenza, kanye namaphuzu agxile kuwo, ngaleyo ndlela kuhlangatshezwane nezidingo ezahlukahlukene zamaqembu ahlukene.
Izinto Ezifanelekela Izingane Nentsha
Uma bekhetha izibuko zezingane, abazali bayelulekwa ukuthi bakhethe amalensi enziwe ngezinto ze-PC noma ze-Trivex. Uma kuqhathaniswa nezinye izinhlobo zamalensi, lezi zinto azilula nje kuphela kodwa futhi zinikeza ukumelana okungcono komthelela kanye nokuphepha okuphezulu. Ngaphezu kwalokho, amalensi e-PC kanye ne-Trivex angavikela amehlo emisebeni ye-UV eyingozi.
Lawa malensi aqinile kakhulu futhi awaphuki kalula, ngakho-ke abizwa ngokuthi amalensi okuphepha. Njengoba enesisindo esingamagremu amabili kuphela ngesentimitha elilodwa, okwamanje ayizinto ezilula kakhulu ezisetshenziswa kumalensi. Akufanele ukusebenzisa amalensi engilazi ezingilazini zezingane, njengoba izingane zisebenza futhi amalensi engilazi avame ukuphuka, okungalimaza amehlo.
Ekuphetheni
Izici zomkhiqizo wamalensi enziwe ngezinto ezahlukene zihluke kakhulu. Amalensi engilazi anzima futhi anesici sokuphepha esiphansi, kodwa awakwazi ukuklwebheka futhi asetshenziswa isikhathi eside, okwenza afanele abantu asebekhulile abanamazinga aphansi omsebenzi womzimba kanye ne-presbyopia encane. Amalensi e-resin afika ngezindlela eziningi futhi anikeza ukusebenza okuphelele, okwenza afanelekele izidingo ezahlukene zokufunda kanye nomsebenzi zabantu abaseminyakeni ephakathi kanye nentsha. Uma kukhulunywa ngezibuko zamehlo zezingane, kudingeka ukuphepha okuphezulu kanye nokukhanya, okwenza amalensi e-PC abe ukukhetha okungcono.
Akukho okubalulekile, kuphela ukuqaphela impilo yamehlo okungaguquki. Lapho sikhetha amalensi enziwe ngezinto ezahlukene, kumelwe sicabangele ngokombono womthengi, sikhumbula izimiso ezintathu zokufaka izibuko zamehlo: induduzo, ukuqina, kanye nokuzinza.
Isikhathi sokuthunyelwe: Jan-08-2024