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1.61 Blue Cut Spin Photochromic Gray HMC Optical lenses
Resin ni imyuka ya hydrocarbon (hydrocarbon) ikomoka ku bimera, cyane cyane conifers, ihabwa agaciro kubera izindi nganda zidasanzwe za shimi. Resin ishobora kugabanywamo ubwoko bubiri bwa resin karemano na resin y’ubukorikori, kandi resin lens ni lens ikorwa binyuze mu guhuza no gusya hakoreshejwe resin nk'ibikoresho fatizo. Resin lens ifite ibyiza bigaragara, uburemere bwayo ni bworoshye, yambara neza kurushaho; Icya kabiri, resin lens ifite ubudahangarwa bukomeye kandi ntiyoroshye kandi ntifite umutekano; Muri icyo gihe, resin lens ifite kandi uburyo bwiza bwo kohereza urumuri; Byongeye kandi, resin lens zoroshye kongera gutunganywa kugira ngo zihuze n'ibikenewe byihariye. Amaherezo, hamwe n'udushya no kunoza uburyo bwo gusiga, resin lens nazo zifite ubudahangarwa bwiza bwo kwangirika, bityo zabaye ikintu nyamukuru mu ma lens ku isoko.