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1.67 Tig Photochromic Grey HMC Optical lenses
Cov iav hloov xim, tseem hu ua "cov iav hloov xim". Raws li lub hauv paus ntsiab lus ntawm photochromatic tautometry reversible reaction, lub iav tuaj yeem tsaus sai sai hauv qab lub teeb thiab ultraviolet irradiation, thaiv lub teeb muaj zog thiab nqus lub teeb ultraviolet, thiab qhia qhov nqus ntawm lub teeb pom kev zoo. Rov qab mus rau qhov tsaus ntuj, tuaj yeem rov qab tau sai sai tsis muaj xim pob tshab, xyuas kom meej tias lub iav kis tau. Yog li ntawd, cov iav hloov xim yog tsim rau siv sab hauv tsev thiab sab nraum zoov tib lub sijhawm kom tiv thaiv kev puas tsuaj ntawm lub hnub ci, lub teeb ultraviolet thiab lub teeb ci ntsa iab rau lub qhov muag.
