Ukungaqondi kahle 1:
Zonke izibuko zelanga azikwazi ukumelana ne-UV 100%.
Ake siqale siqonde ukukhanya kwe-ultraviolet.Ubude begagasi bokukhanya kwe-ultraviolet bungaphansi kwama-400 uv.Ngemva kokuba iso liveziwe, lizolimaza i-cornea ne-retina, okuholela e-solar keratitis kanye nomonakalo we-corneal endothelial.Izibuko zelanga ezisezingeni eliphezulu kufanele zikwazi ukumunca noma zibonise imisebe ye-ultraviolet ukuvimbela ukuchayeka kwamehlo.
Izibuko zelanga ezine-anti-ultraviolet ngokuvamile zinezindlela ezimbalwa ezicacile:
1. Maka “UV400″:
Kusho ukuthi ubude begagasi bokuhlukaniswa kwelensi emisebeni ye-ultraviolet bungama-400nm, okungukuthi, inani eliphakeme lokudluliswa kwe-spectral kubude obungaphansi kuka-400nm alikwazi ukuba likhulu kuno-2%.
2. Maka “UV”, “Ukuvikelwa kwe-UV”:
Ibonisa ukuthi ubude beza obuvimbile belensi ngokumelene nemisebe ye-ultraviolet bungu-380nm.
3. Maka “100% ukumuncwa kwe-UV”:
Kusho ukuthi ilensi inokumuncwa okungu-100% kwemisebe ye-ultraviolet, okusho ukuthi, isilinganiso sokudluliswa kwe-ultraviolet ebangeni le-ultraviolet alikho ngaphezu kuka-0.5%. umsebenzi wokuzivikela emisebeni ye-ultraviolet ngomqondo weqiniso.
Ukungaqondi kahle 2:
Izibuko zelanga ezipholile zingcono kunezibuko ezijwayelekile
Izibuko zelanga ezibizwa nge-polarized, ngaphezu kwemisebenzi yezibuko zelanga, nazo zingenza buthaka futhi zivimbe ukungcola.
ukukhanya okukhanyayo, ukuxhopha, ukukhanya okungavamile kwezinto, njll., futhi kudlulise i-eksisi yokudlulisela yethrekhi elungile iye ku-
iso lokubona ngeso lengqondo nokwenza umbono unothe Amazinga, umbono ucacile futhi wemvelo.Ama-polarizer ajwayelekile
ilungele imisebenzi yangaphandle njengokushayela, ukudoba, ukuhamba ngomkhumbi, i-whitewater rafting, nokushushuluza.Njengombala we
amalensi e-polarizer ngokuvamile aba mnyama, akudingekile ukuwagqoka ezinsukwini eziguqubele noma endlini.Kufanele ukhethe
ezinye izibuko zelanga ezivamile ukuvikela amehlo akho emisebeni ye-ultraviolet.
Isikhathi sokuthumela: Oct-22-2021