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1.67 Spin Photochromic Gray HMC Optical lenses
Indorerwamo zihindura amabara, zizwi kandi nka "lenses zigira imiterere y'izuba". Dukurikije ihame rya "photochromatic tautometry reversible reaction", indorerwamo ishobora kwijima vuba iyo urumuri n'imirasire ya ultraviolet, igafunga urumuri rukomeye kandi igafata urumuri rwa ultraviolet, kandi ikagaragaza ko urumuri rugaragara rudahinduka. Igarutse mu mwijima, ishobora gusubiza vuba imiterere y'urumuri rudafite ibara, ikagenzura ko indorerwamo zigenda. Kubwibyo, indorerwamo zihindura amabara zikwiriye gukoreshwa mu nzu no hanze icyarimwe kugira ngo hirindwe kwangirika k'izuba, urumuri rwa ultraviolet n'imirasire y'amaso.
