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1.71 ʻOki ʻulaʻula kiʻi kiʻi Photochromic Gray HMC Optical lens
Hoʻoholo ka maikaʻi o ka substrate i ka lōʻihi o ka lens a me ka hilinaʻi o ka uhi.Maikaʻi ka substrate maikaʻi a mālamalama, lōʻihi ka manawa hoʻohana a ʻaʻole maʻalahi i ka melemele;A ʻaʻole hoʻohana kekahi mau lens no ka manawa lōʻihi ma ka melemele, a i ʻole ka uhi ʻana.ʻO ka lens maikaʻi me kaʻole o nā'ōpala, nā'ōpala, ka lauoho lauoho, ka lua, ka lens oblique e hālāwai me ka nānā māmā, kiʻekiʻe loa ka hopena.ʻAʻohe kiko, pōhaku, ʻōniʻoniʻo, ʻōhū, māwae i loko o ka aniani, a ʻālohilohi ke kukui.
ʻOi aku ka kiʻekiʻe o ka refractive index, ʻoi aku ka lahilahi o ka lens, a ʻoi aku ka kiʻekiʻe o ke kumukūʻai.
