Thaum nws los xaiv cov looj tsom iav dub, ib qho tseem ceeb uas yuav tsum xav txog yog qib ntawm UV tiv thaiv uas lawv muab. UV hluav taws xob tuaj yeem ua rau koj ob lub qhov muag puas thiab tseem ua rau muaj teeb meem tsis pom kev, yog li nws yog ib qho tseem ceeb rau xaiv cov looj tsom iav dub uas muaj kev tiv thaiv UV txaus. Hauv phau ntawv qhia no, peb yuav piav qhia txog cov kev tiv thaiv UV uas koj yuav tsum tau saib thaum mus yuav khoom rau looj tsom iav dub, suav nrog cov kev ntsuam xyuas nrov UV400.
Nkag siab txog kev tiv thaiv UV
Qib ntawm kev tiv thaiv UV uas looj tsom iav tuaj yeem muab tau yog ntsuas hauv ob peb txoj kev sib txawv:
- UV absorption: Qhov no yog qhov ntsuas ntawm ntau npaum li cas ultraviolet hluav taws xob thaiv los ntawm lo ntsiab muag. Cov looj tsom iav dub tuaj yeem thaiv qhov twg los ntawm 99% mus rau 100% ntawm UV rays.
- Kev tiv thaiv UVB: Cov looj tsom iav dub yuav tsum thaiv 100% ntawm UVB rays, uas yog lub luag haujlwm ua rau tshav kub hnyiab thiab ua rau muaj kev pheej hmoo ntawm mob qog noj ntshav hauv qhov muag.
- Kev tiv thaiv UVA: Cov looj tsom iav dub tseem yuav tsum muaj kev tiv thaiv zoo tiv thaiv UVA rays, uas tuaj yeem ua rau lub retina puas thiab ua rau tsis pom kev thaum lub sijhawm.
Txhawm rau kom ntseeg tau tias koj lub looj tsom iav dub muaj kev tiv thaiv txaus, nrhiav daim ntawv lo lossis daim ntawv nplaum uas qhia txog lawv cov qib tiv thaiv UV. Cov looj tsom iav dub zoo tshaj plaws yuav hais tias lawv thaiv 100% ntawm UVA thiab UVB rays.
UV400 Protection yog dab tsi?
Ib qho kev tiv thaiv UV nrov tshaj plaws uas koj yuav pom yog UV400. Qhov kev ntsuam xyuas no tsuas yog txhais tau hais tias cov looj tsom iav dub thaiv txhua lub teeb rays nrog wavelengths mus txog 400 nanometers. Txij li thaum 400 nm yog nyob rau sab sauv ntawm UV spectrum, qhov no txhais tau hais tias UV400- tsom iav tsom iav yuav tsum thaiv 100% ntawm UVA thiab UVB rays.
Thaum UV400 kev tiv thaiv yog tus qauv tseem ceeb los nrhiav, nco ntsoov tias looj tsom iav dub nrog qhov ntsuas no tsis tas yuav zoo dua rau lwm lub looj tsom iav dub uas muab 100% tiv thaiv UVA thiab UVB rays tab sis tsis txhob nqa daim ntawv lo UV400. Qhov tseem ceeb tshaj plaws yog xaiv cov looj tsom iav dub uas muaj kev tiv thaiv UV tag nrho thiab tsim nyog rau koj cov kev xav tau, txawm tias koj nyob hauv ib hnub ntawm lub puam lossis tsuas yog ua haujlwm rau hnub tshav ntuj.
Lwm yam tseem ceeb uas yuav tau xav txog
Thaum mus yuav cov looj tsom iav dub, tsis txhob hnov qab xav txog lwm yam xws li cov khoom siv lens, cov khoom siv, kev nplij siab, thiab style. Nco ntsoov tias nws yog ib qho tseem ceeb uas yuav tau xaiv cov looj tsom iav dub uas haum thiab xis nyob ntawm koj lub ntsej muag, yog li koj yuav nyiam hnav lawv tsis tu ncua thiab tiv thaiv koj ob lub qhov muag los ntawm UV hluav taws xob.
Kev xav zaum kawg
Xaiv cov looj tsom iav kom zoo tuaj yeem pab ua kom koj lub qhov muag noj qab haus huv thiab txo koj txoj kev pheej hmoo ntawm kev pom teeb meem los ntawm UV hluav taws xob. Los ntawm kev nrhiav looj tsom iav dub nrog qib siab ntawm UV tiv thaiv thiab noj lwm yam xws li haum thiab kev nplij siab rau hauv tus account, koj tuaj yeem nrhiav ob lub looj tsom iav dub uas yuav ua rau koj saib stylish thaum ua kom koj ob lub qhov muag tiv thaiv thiab noj qab nyob zoo.
