Ukungaqondi 1:
Zonke iiglasi zelanga ziyakwazi ukumelana ne-UV 100%.
Masiqale siqonde ukukhanya kwe-ultraviolet. Ubude bokukhanya kwe-ultraviolet bungaphantsi kwama-400 uv. Emva kokuba iliso libonakaliswe, liya kulimaza i-cornea kunye ne-retina, okubangelwa yi-solar keratitis kunye ne-corneal endothelial damage.
Iiglasi zelanga ezinomsebenzi wokuchasana ne-ultraviolet ngokubanzi zineendlela ezininzi ezicacileyo:
1. Phawula “UV400″:
Kuthetha ukuba ubude obubodwa be-lens kwimitha ye-ultraviolet yi-400nm, oko kukuthi, ixabiso eliphezulu le-spectral transmittance kwi-wavelength engaphantsi kwe-400nm alikwazi ukuba likhulu kune-2%.
2. Phawula “UV”, “Ukhuseleko lweUV”:
Ibonisa ukuba ubude obuthinteleyo belensi ngokuchasene nemitha ye-ultraviolet yi-380nm.
3. Phawula "100% ukufunxwa kwe-UV":
Kuthetha ukuba i-lens ine-100% yokufunxa imisebe ye-ultraviolet, oko kukuthi, ukuhanjiswa okuqhelekileyo kuluhlu lwe-ultraviolet alukho ngaphezu kwe-0.5%. umsebenzi okhuselayo kwimitha ye-ultraviolet ngengqiqo yangempela.
Ukungaqondi 2:
Iiglasi zelanga ezipholileyo zingcono kuneeglasi zelanga eziqhelekileyo
Izinto ezibizwa ngokuba yi-polarized sunglasses, ukongeza kwimisebenzi yezibuko zelanga, zinokwenza buthathaka kwaye zithintele ukungcola.
ibonakalisa ukukhanya, ilitha, ukubonakaliswa kwezinto ngendlela engafanelekanga, njl. njl., kwaye igqithise i-axis yothumelo lwengoma elungileyo ukuya
iliso lokubona kwaye wenze umbono otyebileyo amaNqanaba, umbono ucacile kwaye ungokwemvelo. Iipolarizers ngokubanzi
ilungele imisebenzi yangaphandle efana nokuqhuba, ukuloba, ukuhamba ngesikhephe, i-whitewater rafting, kunye ne-skiing.Njengombala we
iilensi ze-polarizer zihlala zimnyama, akukho mfuneko yokuba uzinxibe ngeentsuku ezinamafu okanye ngaphakathi. Kufuneka ukhethe
ezinye iiglasi zelanga eziqhelekileyo ukukhusela amehlo akho kwimitha ye-ultraviolet.
Ixesha lokuposa: Oct-22-2021