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1.67 Spin Photochromic Gray HMC Optical lens
ʻO nā aniani hoʻololi kala, i ʻike ʻia hoʻi ʻo "nā aniani photosensitive". Wahi a ke kumumanaʻo o ka photochromatic tautometry reversible reaction, hiki i ka lens ke pouli koke ma lalo o ka mālamalama a me ka irradiation ultraviolet, ālai i ka mālamalama ikaika a omo i ka mālamalama ultraviolet, a hōʻike i ka omo kūlike ʻole o ka mālamalama ʻike ʻia. Hoʻi i ka pouli, hiki ke hoʻihoʻi koke i ke kūlana moakaka ʻole kala, e hōʻoia i ka transmittance lens. No laila, kūpono nā aniani hoʻololi kala no ka hoʻohana ʻana i loko a me waho i ka manawa like e pale aku i ka hōʻino ʻana o ka lā, ka mālamalama ultraviolet a me ka glare i nā maka.
