Amalensi abanye abantu abukeka eluhlaza okwesibhakabhaka, amanye ansomi, kanti amanye aluhlaza. Futhi izingilazi ezivimbe ukukhanya okuluhlaza okwesibhakabhaka enginconyelwe zona ziphuzi. Pho kungani amalensi okuvimbela ukukhanya okuluhlaza aphenduka aphuzi?
Uma sikhuluma ngokubona, ukukhanya okumhlophe kunemibala eyisikhombisa yokukhanya, yonke ebaluleke kakhulu. Ukukhanya okuluhlaza okwesibhakabhaka kuyingxenye ebalulekile yokukhanya okubonakalayo, futhi imvelo ngokwayo ayinakho ukukhanya okumhlophe okuhlukile. Ukukhanya okuluhlaza okwesibhakabhaka kuxutshwe nokukhanya okuluhlaza kanye nokukhanya okuphuzi ukuveza ukukhanya okumhlophe. Ukukhanya okuluhlaza okotshani nokukhanya okuphuzi kunamandla amancane futhi awacasuli kangako amehlo, kuyilapho ukukhanya okuluhlaza okwesibhakabhaka kunobude obufushane beza beza namandla aphezulu, okucasula kakhulu amehlo.
Ngokombono wombala, ilensi yokukhanya ephikisana nohlaza okwesibhakabhaka izobonisa umbala othile, futhi inkulumo egxilile iphuzi ngokukhanyayo. Ngakho-ke, uma i-lens engenambala ikhangisa ukuthi ingakwazi ukumelana nokukhanya okuluhlaza okwesibhakabhaka, empeleni iyisiwula. Ngoba ukuhlunga ukukhanya okuluhlaza kusho ukuthi i-spectrum eyamukelwe ngamehlo ayiphelele uma iqhathaniswa ne-spectrum yemvelo, ngakho-ke kuzoba nokushintshashintsha kwe-chromatic, futhi inani lokuphambuka kwe-chromatic lincike ebangeni lokubonwa komuntu ngamunye kanye nekhwalithi yelensi ngokwayo.
Ngakho-ke, ingabe i-lens emnyama ingcono? Eqinisweni, akunjalo. Amalensi akhanyayo noma aphuzi amnyama awakwazi ukuvimba ukukhanya okuluhlaza okwesibhakabhaka, kuyilapho amalensi aphuzi akhanyayo angavimbela ukukhanya okuluhlaza okwesibhakabhaka ngaphandle kokuthikameze iphaseji elivamile lokukhanya. Leli phuzu lingase linganakwa kalula ngabangane abaningi lapho bethenga izibuko ezikhanyayo eziphikisana nohlaza okwesibhakabhaka. Cabanga nje, uma ukukhanya okuluhlaza okungaphezulu kuka-90% kuvinjelwe, kusho ukuthi awukwazi ukubona ukukhanya okumhlophe, khona-ke ungakwazi ukuhlukanisa ukuthi kuhle noma kubi emehlweni?
Ikhwalithi yelensi incike kunkomba ye-refractive, i-coefficient yokusabalalisa, nezingqimba zemisebenzi ehlukene. Uma iphezulu inkomba ye-refractive, i-lens iba mncane, i-dispersion iphakama, umbono ocacile, futhi izendlalelo ezihlukene ngokuyinhloko ziyi-anti-ultraviolet, ukukhanya okuluhlaza okwesibhakabhaka kwesikrini se-electronic, i-anti-static, uthuli, njll.
Ochwepheshe bathi: “Imisebe yokukhanya eluhlaza okwesibhakabhaka ukukhanya okubonakalayo okunamandla amakhulu okunobude obungamaza angama-400-500 nanometer, okuwukukhanya okunamandla kakhulu ekukhanyeni okubonakalayo. Ukukhanya okuluhlaza okwesibhakabhaka okunamandla amakhulu kuyingozi ngokuphindwe ka-10 emehlweni kunokukhanya okuvamile.” Lokhu kubonisa amandla okukhanya okuluhlaza okwesibhakabhaka. Yeka ukuthi inkulu! Ngemva kokufunda ngezingozi zokukhanya okuluhlaza okwesibhakabhaka, umhleli naye wahamba wayogqoka izibuko ezikhanyayo eziphikisana nohlaza okwesibhakabhaka, ngakho izibuko zomhleli nazo zaphenduka zaba phuzi!
Isikhathi sokuthumela: Apr-19-2022