Bitandukanye n’amadarubindi asanzwe yizuba cyangwa amafoto yerekana amafoto agabanya gusa urumuri, lens ya UV400 iyungurura imirasire yumucyo yose hamwe nuburebure bwa nanometero 400. Ibi birimo UVA, UVB nimbaraga nyinshi zigaragara (HEV) itara ry'ubururu.
Kugirango hafatwe ibirahuri bya UV, lens irasabwa guhagarika 75% kugeza 90% yumucyo ugaragara kandi igomba gutanga UVA na UVB kurinda 99% yimirasire ya ultraviolet.
Byiza, ushaka indorerwamo zizuba zitanga UV 400 kurinda kuva zitanga hafi 100% kurinda imirasire ya UV.
Menya ko indorerwamo zose zizuba zifatwa nkizuba rya UV-ririnda. Ikirahuri cyizuba gishobora kugira lens zijimye, zishobora gufatwa nkizibuza imirasire, ariko ntibisobanuye ko igicucu gitanga uburinzi buhagije bwa UV.
Niba ayo madarubindi yizuba afite lens yijimye adashyizwemo kurinda UV, igicucu cyijimye mubyukuri mubi kumaso yawe kuruta kutambara imyenda ikingira na gato. Kubera iki? Kuberako ibara ryijimye rishobora gutuma abanyeshuri bawe baguka, bagahanze amaso urumuri rwinshi rwa UV.
Nabwirwa n'iki ko ibirahuri byanjye bifite uburinzi bwa UV?
Kubwamahirwe make, ntabwo byoroshye kumenya niba indorerwamo zizuba cyangwa amafoto ya fotokromike afite lens-UV ikingira gusa.
Ntushobora kandi gutandukanya urugero rwuburinzi bushingiye ku ibara rya lens, kuko lens lens cyangwa umwijima ntaho bihuriye no kurinda UV.
Ibyiza byawe ni ukujyana ibirahuri byawe mububiko bwa optique cyangwa ibigo byipima umwuga. Barashobora gukora ikizamini cyoroshye kumirahuri yawe kugirango bamenye urwego rwo kurinda UV.
Cyangwa guhitamo byoroshye nukwishakira ubushakashatsi bwawe kumurongo wamamaye, kandi wabigize umwuga nka UNIVERSE OPTICAL, ugahitamo amadarubindi yizuba ya UV400 cyangwa UV400 yerekana amafoto kuva kurupapuro.https://www..