Lub sijhawm thaum cov ntxhais thiab cov neeg hluas tau txaj muag los ntawm qhov yuav tsum hnav cov tsom iav, ntev mus. Hnub no qhov khoom siv rau ntau yog qhov tseem ceeb ntawm cov qauv, vim tsis muaj nws daim duab yuav tsis tiav. Cov npe nrov tshaj plaws ntawm lub ntiaj teb no lub caij xav txog tsom iav los ua ib qho ntxiv rau cov khaub ncaws, uas muab cov duab ntawm nws tus tswv tsis paub ib, qhov tseem ceeb thiab kev sib deev.
Nws yog qhov tseeb uas lub ntsiab muag nyob hauv txhua lub tsom iav yuav tsum sib haum mus rau qhov kev mob ntawm cov khoom hauv lub zeem muag ntawm tus neeg uas yuav coj lawv. Yog li, yog hais tias ib tug txiv neej los yog poj niam muaj kev pom zoo thiab tsis raug kev mob ntawm kev ua mob tsis zoo, muaj cov ntsej muag uas tsis muaj qab hau yuav tsis pom zoo. Xws li tus accessory tsis cuam tshuam rau kev muaj peev xwm pom, tab sis tib lub sij hawm nws yuav decorate cov tsos ntawm nws tus tswv thiab muab nws cov duab ib charming "zest".
Yuav ua li cas xaiv tsom iav tsis muaj diopters?
Nws yuav zoo li nws tau yooj yim dua li xaiv qhov tsom iav tsis muaj duab rau duab - nws txaus txaus mus rau txhua qhov chaw ntawm optics thiab tuaj yeem txoj cai qub uas yuav hais txog qhov ua tau zoo thiab nkaum hauv cov tsos mob, thiab kuj yuav tsum tau kho cov duab tsim. Nws ua tau txhua yam - square or rectangular, round lossis oval, ua nyob rau hauv daim ntawv ntawm ib tug "miv lub qhov muag" los yog "aviators." Txhua yam nyob ntawm seb yam nta zoo li cas rau koj los ntawm qhov xwm, thiab qhov tshwm sim twg koj tseem tabtom ua kom tiav los ntawm kev hnav xws li tsom iav.
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Txawm hais tias muaj coob leej neeg ntseeg hais tias cov iav uas niaj hnub siv hauv cov tsom iav, qhov tseeb yog qhov deb ntawm rooj plaub. Mus rau lo ntsiab muag- "nulevkam", uas muab tso rau hauv xws li tsom iav, tej yam yuav tsum tau ua. Yog hais tias qhov khoom tsis zoo, nws yuav txhawb lub qhov muag ceev ceev, pom kev tsis zoo thiab kev loj hlob ntawm ib tug mob taub hau.
Yuav zam tau qhov no, koj yuav tsum xaiv tsom iav tsis muaj dioptries, lo ntsiab muag uas yog tsim los ntawm cov yas los yog iav thiab them nrog ib txheej tshwj xeeb, uas tiv thaiv qhov ci, plua plav thiab ya raws. Nyob rau tib lub sij hawm, ob peb txheej ntawm antireflective coatings yuav tsum tau mus thov rau ntawm lub lens, txwv tsis pub lub teeb yuav tsis tag nrho dhau mus rau lub qhov muag, uas muaj peev xwm tseem ua rau pom kev tsis zoo.
Ntxiv rau "zero", muaj lwm hom tsom iav tsis muaj diopters, uas yog siv tsis tas rau cov duab ntxiv, tab sis kuj yuav tsum ua tiav cov hom phiaj, piv txwv:
- tsaus tsom iav tsis muaj diopters yog qhov tiv thaiv tiv thaiv ultraviolet rays. Koj tuaj yeem hnav lawv ntawm txoj kev thiab tsuas yog rau hnub qhib ntshiab xwb, thaum tshav ntuj rays tuaj yeem ua rau koj lub qhov muag thiab ua rau muaj kev puas siab ntsws ntau yam . Hauv chav, tej lub iav yuav tau muab tshem tawm;
- Photochromic tsom iav-chameleons tsis muaj diopters ua pob tshab thaum tus neeg nkag mus rau hauv chav tsev, thiab instantly darkens thaum ultraviolet hluav taws xob pib rau cov tsom iav. Xws li lub cuab yeej siv tau nyob rau hauv tej yam kev mob, uas yog undoubtedly heev yooj yim;
- tsom iav tsis muaj diopters rau hauv lub computer yog tsim rau cov neeg uas siv ntau lub sij hawm nyob rau hauv pem hauv ntej ntawm lub monitor. Cov khoom siv no txo lub qhov muag, ua rau pom kev zoo thiab tso cai rau koj mus ua hauj lwm ntev dua tsis qaug zog.
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Nyob rau hauv txhua rooj plaub, txawm lub iav tsis muaj diopters uas koj xaiv, koj yuav tsum to taub tias koj tsis tas yuav hnav lawv. Thaum hnav xws li qhov khoom siv, lub qhov muag pom ib txwm zuj zus, uas tuaj yeem cuam tshuam rau qhov mob thiab kev lag luam ntawm lub qhov muag.
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