Ib qho tseem ceeb uas yuav tsum xav txog thaum xaiv cov lens yog cov khoom siv lens.
Yas thiab polycarbonate yog cov khoom siv lens uas siv rau hauv cov tsom iav.
Yas yog lub teeb thiab ruaj khov tab sis tuab dua.
Polycarbonate nyias dua thiab tiv thaiv UV tab sis yooj yim khawb thiab kim dua yas.
Txhua yam khoom siv rau lub lens muaj cov yam ntxwv tshwj xeeb uas ua rau nws tsim nyog rau qee lub hnub nyoog, kev xav tau thiab kev ua neej. Thaum xaiv cov khoom siv rau lub lens, nws yog ib qho tseem ceeb uas yuav tsum xav txog:
●Qhov hnyav
●Kev tiv thaiv kev cuam tshuam
●Tiv thaiv khawb
●Tuab
● Kev tiv thaiv ultraviolet (UV)
●Tus nqi
Kev piav qhia txog cov iav yas
Cov iav yas kuj hu ua CR-39. Cov khoom siv no tau siv dav hauv cov tsom iav txij li xyoo 1970 thiab tseem yog qhov kev xaiv nrov ntawm cov neeg uas hnav tsom iav vim yognwspheej yig thiab ruaj khov. Cov txheej tiv thaiv khawb, xim thiab tiv thaiv ultraviolet (UV) tuaj yeem ntxiv tau yooj yim rau cov iav no.
●Sib dua -Piv rau cov iav yas, cov yas tsis hnyav heev. Cov tsom iav uas muaj cov iav yas yooj yim hnav rau lub sijhawm ntev.
●Kev pom tseeb zoo -Cov iav yas muab qhov pom kev zoo. Lawv tsis ua rau pom kev tsis meej.
●Ruaj khov -Cov iav yas tsis tshua tawg lossis tawg ntau dua li cov iav. Qhov no ua rau lawv yog qhov kev xaiv zoo rau cov neeg uas nyiam ua ub ua no, txawm hais tias lawv tsis tawg zoo li polycarbonate.
● Pheej yig dua -Cov iav yas feem ntau pheej yig dua li cov polycarbonate.
●Kev tiv thaiv UV ib nrab -Yas tsuas yog tiv thaiv tau ib nrab ntawm cov teeb meem UV xwb. Yuav tsum muaj ib txheej UV ntxiv rau kom tiv thaiv tau 100% yog tias koj npaj yuav hnav cov tsom iav sab nraum zoov.
Kev piav qhia txog cov iav polycarbonate
Polycarbonate yog ib hom yas uas tiv taus kev cuam tshuam heev uas feem ntau siv rau hauv cov tsom iav. Cov iav polycarbonate thawj zaug tau tsim tawm hauv xyoo 1980, thiab lawv tau nrov sai sai.
Cov khoom siv lens no tiv taus kev cuam tshuam ntau dua li yas kaum npaug. Vim li no, feem ntau pom zoo kom siv rau cov menyuam yaus thiab cov neeg laus uas nquag ua ub ua no.
●Siv tau ntev -Polycarbonate yog ib qho ntawm cov khoom siv muaj zog tshaj plaws thiab muaj kev nyab xeeb tshaj plaws uas siv niaj hnub no hauv kev ua cov tsom iav. Nws feem ntau pom zoo rau cov menyuam yaus, cov neeg laus uas nquag ua ub ua no, thiab cov neeg uas xav tau cov tsom iav kev nyab xeeb.
●Nyias thiab sib dua –Cov iav polycarbonate nyias dua li cov yas ib txwm muaj txog li 25 feem pua.
●Kev tiv thaiv UV tag nrho -Polycarbonate thaiv tau cov teeb UV, yog li ntawd tsis tas yuav ntxiv cov tshuaj pleev UV rau koj cov tsom iav. Cov tsom iav no yog qhov kev xaiv zoo rau cov neeg uas siv sijhawm ntau sab nraum zoov.
●Pom zoo kom siv cov txheej uas tiv taus khawb -Txawm hais tias polycarbonate ruaj khov, cov khoom siv no tseem yooj yim khawb. Xav kom siv cov txheej tiv thaiv khawb kom pab cov iav no siv tau ntev dua.
●Kev siv tshuaj pleev xim tiv thaiv kev cuam tshuam yog qhov pom zoo –Muaj ib txhia neeg uas siv cov tshuaj ntau dua pom cov teeb ci ntsa iab ntawm qhov chaw thiab cov xim sib txawv thaum hnav cov iav polycarbonate. Yuav tsum muaj cov txheej tiv thaiv teeb ci kom txo tau qhov teeb meem no.
●Kev pom tsis meej -Polycarbonate tuaj yeem ua rau qee qhov kev pom kev tsis meej ntawm cov neeg uas muaj cov tshuaj kho mob zoo dua.
●Kim dua -Cov iav polycarbonate feem ntau kim dua li cov iav yas.
Koj tuaj yeem nrhiav ntau txoj kev xaiv rau cov ntaub ntawv lens thiab cov haujlwm los ntawm kev saib peb lub vev xaibhttps://www.universeoptical.com/stock-lens/Yog tias muaj lus nug dab tsi, thov hu rau peb kom tau txais cov ntaub ntawv ntxiv.