TR90 Eyeglasses Frames Cov poj niam txiv neej Photochromic Glasses Progressive Reading Glasses Tshuaj Hloov Xim Tsom iav
Xim-hloov tiv thaiv-xiav tsom iav yog ib qho kev sib xyaw ntawm cov xim-hloov lo ntsiab muag thiab tiv thaiv xiav tsom iav.
Lub hauv paus ntsiab lus ntawm kev hloov xim: tshwj xeeb lub teeb-rhiab xim-hloov cov ntaub ntawv, xws li nyiaj halide, ntxiv rau lub lens. Thaum raug lub teeb ntawm qhov sib txawv los yog wavelengths, cov ntaub ntawv no raug tshuaj lom neeg ua rau lub lens hloov xim. Piv txwv li, nyob rau hauv qhov chaw nyob sab hauv tsev los yog tsis muaj teeb pom kev zoo, lub lens xim yog sib dua los yog pob tshab; Thaum raug tshav ntuj los yog lub teeb muaj zog, cov khoom siv photochromic yog stimulated thiab lub lens xim darkens.
Nws tuaj yeem thaiv qhov kev puas tsuaj ntawm lub teeb xiav rau lub qhov muag, thiab tuaj yeem kho cov xim ntawm lub lens raws li kev hloov ntawm ib puag ncig lub teeb, hloov mus rau qhov sib txawv ntawm lub teeb, thiab txo qhov tsis xis nyob ntawm qhov muag nkees, dryness thiab lwm yam tsos mob.
