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1.67 Spin Photochromic Grey HMC Optical lo ntsiab muag
Cov xim hloov xim lo ntsiab muag, tseem hu ua "photosensitive lo ntsiab muag". Raws li lub hauv paus ntsiab lus ntawm photochromatic tautometry reversible cov tshuaj tiv thaiv, lub lens tuaj yeem darken sai nyob rau hauv lub teeb thiab ultraviolet irradiation, thaiv lub teeb muaj zog thiab nqus ultraviolet lub teeb, thiab pom qhov nruab nrab nqus ntawm pom lub teeb. Rov qab mus rau qhov tsaus ntuj, tuaj yeem rov kho cov xim tsis muaj pob tshab hauv lub xeev, xyuas kom lub lens transmittance. Yog li ntawd, cov xim hloov xim yog tsim rau siv sab hauv tsev thiab sab nraum zoov tib lub sijhawm los tiv thaiv kev puas tsuaj ntawm lub hnub ci, lub teeb ultraviolet thiab glare rau lub qhov muag.
