Tsis zoo li cov looj tsom iav dub zoo tib yam lossis cov tsom iav photochromic uas tsuas yog txo qhov ci, UV400 lo ntsiab muag lim tawm tag nrho cov teeb pom kev zoo nrog wavelengths txog 400 nanometers. Qhov no suav nrog UVA, UVB thiab lub zog loj pom (HEV) xiav lub teeb.
Txhawm rau txiav txim siab UV tsom iav, cov lo ntsiab muag yuav tsum tau thaiv 75% mus rau 90% ntawm lub teeb pom kev thiab yuav tsum muaj kev tiv thaiv UVA thiab UVB los thaiv 99% ntawm cov hluav taws xob ultraviolet.
Qhov zoo tshaj plaws, koj xav tau looj tsom iav dub uas muaj UV 400 tiv thaiv vim tias lawv muaj 100% kev tiv thaiv los ntawm UV rays.
Nco ntsoov tias tsis yog txhua lub looj tsom iav dub tau suav tias yog looj tsom iav tiv thaiv UV. Ib nkawm looj tsom iav dub tej zaum yuav muaj cov lo ntsiab muag tsaus, uas tuaj yeem suav tias yog thaiv cov kab hluav taws xob, tab sis qhov ntawd tsis tau txhais hais tias cov ntxoov ntxoo muab kev tiv thaiv UV txaus.
Yog tias cov looj tsom iav dub nrog cov lo ntsiab muag tsaus nti tsis suav nrog kev tiv thaiv UV, cov xim tsaus nti yuav ua rau koj ob lub qhov muag tsis zoo dua li tsis hnav looj tsom iav txhua. Vim li cas? Vim tias qhov tsaus nti tuaj yeem ua rau koj cov menyuam kawm ntawv nthuav dav, nthuav koj ob lub qhov muag rau ntau lub teeb UV.
Kuv tuaj yeem qhia tau li cas yog tias kuv lub tsom iav muaj kev tiv thaiv UV?
Hmoov tsis zoo, nws tsis yooj yim los qhia yog tias koj lub looj tsom iav dub lossis cov tsom iav photochromic muaj UV-tiv thaiv lo ntsiab muag tsuas yog saib lawv.
Koj tsis tuaj yeem paub qhov txawv ntawm qhov kev tiv thaiv raws li xim ntawm lub lens, vim tias lo ntsiab muag lossis qhov tsaus ntuj tsis muaj dab tsi cuam tshuam nrog UV tiv thaiv.
Koj qhov thawj koom ruam zoo tshaj plaws yog coj koj cov iav mus rau lub khw muag khoom kho qhov muag lossis lub chaw kuaj kev tshaj lij. Lawv tuaj yeem ua qhov kev sim yooj yim ntawm koj lub tsom iav los txiav txim siab txog qib ntawm kev tiv thaiv UV.
Los yog qhov kev xaiv yooj yim yog los ntawm qhov chaw koj tshawb nrhiav ntawm lub npe nrov, thiab cov chaw tsim khoom xws li UNIVERSE OPTICAL, thiab xaiv cov looj tsom iav tiag UV400 lossis UV400 photochromic lo ntsiab muag los ntawm nplooj ntawvhttps://www.universeoptical.com/1-56-aspherical-uv400-q-active-material-photochromic-lens-product/.