Iindondo zelangangokhuseleko lwe-UV ngenxa yokongezwa kwengubo ekhethekileyo kwiilensi, kwaye izibuko zelanga ezingaphantsi azikwazi nje ukuvala imitha ye-UV, kodwa zinciphisa kakhulu ukuhanjiswa kweelensi, ukwenza abafundi babe bakhulu, kwaye imitha ye-ultraviolet iya kujovwa ngobuninzi. , ebangela umonakalo emehlweni..Ngoko namhlanje,IVisioni-optical iya kukuthatha ukuba uqonde: wazi njani ukuba iiglasi zelanga ziyayithintela i-UV-resistant?
Indlela yoku-1. Jonga ileyibhile yeendondo zelanga.
Iimpawu ezibonakalayo ezinje nge "UV protection", "UV400", njl.iindondo zelanga."Isalathisi se-UV" sisiphumo sokuhluza imitha ye-ultraviolet, eyona nto ibalulekileyo yokuthenga izibuko zelanga.Ukukhanya okunobude obuyi-286nm-400nm kuthiwa kukukhanya kwe-ultraviolet.Ngokubanzi, i-100% ye-UV index ayinakwenzeka.Isalathiso se-UV seninzi yeendondo zelanga siphakathi kwe-96% kunye ne-98%.
Iiglasi zelanga ezinomsebenzi wokuchasana ne-ultraviolet ngokubanzi zineendlela ezicacileyo zilandelayo:
a) Phawula "UV400": oku kuthetha ukuba ubude obusikiweyo belensi ukuya ekukhanyeni kweultraviolet yi400nm, oko kukuthi, elona xabiso likhulu τmax (λ) logqithiso lwespectral kubude bobude (λ) ngaphantsi kwe-400nm alikho ngaphezulu kwe-400nm. 2%;
b) Phawula u-"UV" kunye "nokhuseleko lwe-UV": oku kuthetha ukuba ubude obusikiweyo belensi ukuya kwi-ultraviolet yi-380nm, oko kukuthi, elona xabiso likhulu τmax(λ) le-spectral transmittance kwi-wavelength (λ) ngaphantsi kwe-380nm ayikho ngaphezulu kwe-2%;
c) Phawula "100% i-UV absorption": Oku kuthetha ukuba i-lens inomsebenzi we-100% wokufunxa imitha ye-ultraviolet, oko kukuthi, ukuhanjiswa kwayo kuluhlu lwe-ultraviolet alukho ngaphezu kwe-0.5%.
Izibuko zelanga ezihlangabezana nezi mfuno zingasentla ziindondo ezikhusela kwimitha ye-ultraviolet ngokwenyani.
Indlela yesi-2. Sebenzisa usiba lwemali yebhanki ukujonga ukuba uqinisekile
Xa kungekho zixhobo, abantu abaqhelekileyo banokubona nokuba iiglasi zelanga zinokhuseleko lwe-UV.Thatha i-banknote, beka i-lens yelanga kwi-watermark echasene ne-counterfeiting, kwaye uthathe ifoto kwi-lens kunye nesixhobo semali okanye i-detector yemali.Ukuba usenokuyibona i-watermark, oko kuthetha ukuba iiglasi zelanga azikwazi ukumelana ne-UV.Ukuba awukwazi ukuyibona, oko kuthetha ukuba iiglasi zelanga zikhuselwe yi-UV.
Ukushwankathela oku kungasentla: Indlela yesi-2 luqinisekiso lweiindondo zelangaileyibhile kwiNdlela yoku-1. Ingabonwa ngokurhabaxa ukuba iileyibhile zomthengisi zichanekile nokuba iiglasi zelanga zinomsebenzi we-anti-ultraviolet.Xa uthengela izibuko zelanga, unokuzama ngazo.Kwinkqubo yokuthenga kunye nokunxiba, ukuba unayo nayiphi na imibuzo, nceda ukhangele ulwazi olufanelekileyo.
Ixesha lokuposa: Jul-22-2022