Los ntawm txoj kev, txawm tias nyob rau hauv cov huab cua pos huab, mus txog 80% ntawm teeb meem ultraviolet rays rau peb, thiab txawm nyob rau hauv huab cua tshav ntuj peb ua tsis tau yam tsis muaj kev tiv thaiv ntxiv. Yog li ntawd, cov kws kho mob xav kom txhua tus tsis muaj kev siv tsom iav thiab tshuaj thaiv hnub ci. Kawm yuav ua li cas xaiv txoj cai looj tsom xaj thiab yuav muaj cov ntsiab lus nrog koj lub peev xwm ntawm lub caij ntuj sov!
Thiab ntawm no yog lub tswv yim tseem ceeb - nws zoo dua tsis ua stingy, ces koj tsis tas yuav, ces khauv xim: huag, lub saw-mail yog luv luv. Yuav pheej yig tsom iav rau ntawm cov ntawv sau uas tsis muaj ntawv pov thawj, los ntawm tus kws tsim tawm tsis pom kev, koj ntxiv ua rau koj lub qhov muag puas. Qhov tseeb yog tias tsuas yog tsom iav tsis tiv thaiv qhov nkag mus ntawm kev puas tsuaj. Tiam sis nrog lub caij nyoog, peb tus tub ntxhais kawm ua kom zoo dua, peb tsis txhob khoov, thiab nws hloov tawm tias lub qhov muag tau txais ntau dua ultraviolet!
Qhov tshwm sim yog ib qho deterioration ntawm lub zeem muag, cloudiness ntawm Crystal, ib tug retinal burn. Cov kab mob uas tshwm sim ntau tshaj plaws los ntawm kev tsim hluav taws xob yog photokeratitis (mob khaub thuas hnyuv). Raws li nrog sunburn, lub ncus yuav heev mob heev. Tearing, redness thiab zoo nkaus li xuab zeb nyob rau hauv ob lub qhov muag, o tawv muag, txawm ib ntus tsis pom kev - cov no yog cov tsos mob ntawm photokeratitis. Nws daim ntawv no yog "qhov muag dig daus", uas cuam tshuam rau cov nce toj thiab cov neeg ua si. Nyob rau hauv cov ntaub ntawv no, restoration ntawm lub zeem muag yuav siv sij hawm li ob peb hnub, thiab lacrimation thiab irritation ntawm ob lub qhov muag yuav nyob mus ib txhis.
Tag nrho cov teeb meem hais lus nyob rau hauv tus nyiam ntawm yuav lub "txoj cai", tsis phony tsom iav. Hauv qhov no, nws yog qhov zoo tshaj plaws hu rau lub khw tshwj xeeb ntawm optics. Tom qab tag nrho, ntawm no tag nrho cov khoom muaj ntawv pov thawj. Thiab nws tsis tsim nyog xaiv hom tshuaj kim kim. Koj tuaj yeem yuav tsom iav los ntawm cov khw muag khoom lag luam, tsis yog tus nqi ntawm 200 txog 300 las, tab sis cov uas twb tau tiv thaiv ultraviolet hluav taws xob lawm.
Iav los yog yas?
Lo lus nug no tau raug teb los ntawm cov tuam txhab ua lub ntiaj teb rau ib lub sij hawm ntev: hnub no feem ntau cov qauv ntawm iav yog tsim los ntawm cov yas. Txawm hais tias nyob rau hauv peb lub teb chaws nws yog tseem tau hnov tias, hais tias, nws yog zoo dua rau tiv thaiv lub pob zeb tsom iav (uas yog, iav) los ntawm lub hnub. Ua ntej, nws tsis yog li ntawd. Secondly, yas muaj ntau yam zoo: travmobezopasnost, yooj yim, muaj peev xwm ua tau ntau yam tsim thiab daim ntawv thov ntxiv tiv thaiv txheej (piv txwv, polarizing), thiab tiv thaiv - txhim khu kev tiv thaiv zoo tiv thaiv UV. Qhov teeb meem tsuas yog - cov ntaub ntawv no yog "sai" thiab khawb. Cov tsom iav nrog iav lo ntsiab muag pom tau tias tsis muaj kev nyab xeeb vim lawv txoj kev tsis sib haum xeeb thiab tsis haum rau txoj kev ua neej zoo.
Lo ntsiab muag
Feem ntau, tsom iav yog tsim nrog cov qauv kev tiv thaiv kev tiv thaiv ntawm cov xim sib txawv. Tab sis muaj ntau ntawm "heaped" coatings. Piv txwv, lub polarization pab txoj kev sib piv, tshem tawm kev khaus qhov muag. Tsom iav nrog cov lo ntsiab muag no tshwj xeeb tshaj yog rau cov neeg tsav tsheb. Ntsuam xyuas seb koj tus qauv puas muaj polarized txheej (los ntawm txoj kev, nws tshwj xeeb tshaj yog nyob rau hauv Polaroid), koj tuaj yeem nyob hauv khw muag khoom optics nrog ib qho screen tshwj xeeb los yog daim ntawv lo. Ua ntej koj yuav tsum tau saib lawv tsis muaj tsom iav, thiab tom qab ntawd - hauv lawv. Yog tias tus duab tshwm ntawm qhov screen, uas koj tsis pom nrog lub qhov muag liab qab, ces koj lo ntsiab muag yog polarized.
Cov txheej txheem (tiv thaiv) txheej pov tseg - tshem cov tsho thiab cov "parasitic dluab" nyob rau sab nraum qab ntawm lub lens. (Qhov no yog thaum koj pom koj lub tsom iav hauv koj lub tsom iav pom qhov khoom ntawm qab koj, lossis koj lub qhov muag). "Parasitic images" ua rau lub qhov muag tsis pom kev thiab ua rau muaj teeb meem loj, tshwj xeeb tshaj yog thaum tsav tsheb thaum tsaus ntuj.
Photochromic lo ntsiab muag, tseem hu ua chameleons, tsaus nti los sis qis raws li qhov siv ntawm lub teeb. Tshwj xeeb yog lawv yooj yim rau cov neeg uas muaj teeb meem tsis pom kev uas tsis xav hloov tsom iav hauv txoj kev. Ntau tus neeg, hmoov tsis, tsis paub yuav ua li cas xaiv txoj cai looj tsom iav, tab sis nrog peb cov lus pom zoo koj yuav kawm ntau heev.
Daim iav txheej - ntxiv darkens piv rau cov ntsiab muag lo ntsiab muag, ntxiv rau tshooj sov rays. Cov lo ntsiab muag no yog tshwj xeeb tshaj yog rau kev ua luam dej thiab kev caij skiing.
Yog tias koj tso rau tsom iav nrog cov xim lo xim dawb, thiab lub ntiaj teb ib puag ncig muaj qhov hloov xim, paub: koj muaj fake ntawm koj lub qhov ntswg. Cov khau tsom iav cia kom tag nrho cov xim xim, tsuas yog me ntsis hloov qhov ntxoov ntxoo. Muaj ntau lub iav tsom iav rau cov tib neeg uas xav paub txog kev xav xim, piv txwv rau cov neeg tsav tsheb, muaj peev xwm tsim teeb meem. Kev ua txhaum ntawm cov xim zoo li niaj zaus hauv kev zoo nkauj ntawm ib qho xim tsuas pom zoo, ib tug neeg hnav cov tsos iav dawb yog nkees sai dua.
Qhov zoo tshaj plaws yog grey (los ntawm lub teeb ntxoov ntxoo mus tob, yuav luag dub) thiab xim av. Nyob rau hauv rooj plaub no, grey muab ib tug tiag tiag xaav, xim av - zoo sib piv, tab sis ntsuab ua greener, thiab ci xim - paler. Rau cov tsav tsheb, xim daj feem ntau pom zoo (nyob rau kev khiav dim). Cov lim no txo qhov muag, mob siab rau qhov pom ntawm qhov chaw hauv qhov tob (qhov kev pheej hmoo ntawm kev sib tsoo yog xyuas kom meej meej meej). Txiv kab ntxwv yog tsim los txo qhov pom kev ntawm qhov muag pom kev thaum tsaus ntuj. Ntsuab muab ib qho zoo sib xws ntawm qhov sib txawv hauv cov teeb meem uas tsis tshua pom kev thiab tiv thaiv ntawm lub hnub ci.
Txhob tsom iav, lub ntiaj teb uas koj xav hais tias (lus) xiav thiab ntshav. Nyob rau hauv lawv, koj yuav raug kev puas tsuaj koj lub zeem muag lus nyob rau hauv ib lub caij ntuj sov. Qhov tseeb yog tias cov xim no muaj qhov tsis zoo ntawm peb lub qhov muag. Qhov feem ntau ntawm qhov xiav-violet ib feem ntawm cov spectrum tsis txaus siab rau kev xav thiab kev tsav tsheb ntawm tib neeg. Nrog ua haujlwm ntev heev hauv lub computer - muaj mob taub hau, qaug zog, txob txob. Cov av qeeg xiav-xiav - yuav ua rau pom kev zoo ntawm lub teeb tawg (qhov no ua rau muaj kev nyab xeeb ntawm lub qhov muag ntawm cov tsheb uas tsav tsheb).
Daim ntawv
Txoj hlua ntawm lub lens kuj tseem ceeb, tab sis qhov kev pom zoo twb nyob ntawm tus neeg lub qhov muag ntawm lub qhov muag: piv txwv li, koj xav zoo nrog lenses ncaj nraim, thiab nrog cov thawv txuam - kev tsis xis nyob. Qhov no yuav yog vim muaj teeb meem zais. Piv txwv, nrog rau kev ua txhaum ntawm kev tsis pom kev nruab yeeb (nrog rau ob lub qhov muag). Lub tswv yim yog: Yog tias koj xav tias, txawm tias qhov slightest inconvenience, koj zoo dua muab cov qauv ntawm tsom iav.
Ncej
Los ntawm cov thaav duab tsis yog nws qhov tsos, hnyav, lub zog, tab sis kuj tseem ceeb ntawm lub cev, thaum lub tawv nqaij tuaj yeem tsis zoo los tiv tauj nrog ib qho khoom siv. Allergy feem ntau yog tshwm sim los ntawm nickel, uas yog siv ntau cov phaj nyaj. Stainless hlau, titanium, kub thiab nyiaj yog pom tias yog hypoallergenic. Cov tsom iav tsom iav, raws li nosoupory thiab temples, nyob rau hauv kev sib cuag nrog daim tawv nqaij, yog ua los ntawm silicones, acetate, lwm yam plastics los yog hlau. Nws yuav tsum tau nyob rau hauv lub hlwb nco ntsoov hais tias qee cov tshuaj silicones kuj tuaj yeem ua rau tsis haum cov tshuaj tiv thaiv.
Rau cov kis las kis las
Ua tib zoo xaiv tsom iav dub rau kev ua si. Cov ntas yuav tsum yog lub teeb thiab kav ntev li sai tau, nrog cov tuam tsev uas yooj yim muab kom haum rau haum, muab lub tsho kom haum, nrog cov ntaub ntawv tshwj xeeb ntawm cov tuam tsev, kom lub tsom iav tsis nti.
Rau kev caij tsheb mus rau iav nrog iav txheej, lo ntsiab muag ntawm xim av thiab ntsuab hues, photochromic. Xim: tag nrho ntxoov xim av thiab ib co - grey thiab ntsuab. Rau kev mus ncig ntawm lub tsheb, xim av, grey-ntsuab, grey xim zoo dua los nyiam. Rau cov kev ua si hauv dej - xim av xim thiab xim xim av, hnav khaub ncaws, daim iav los yog cov yas lo. Rau ntaus pob - xim daj, txiv kab ntxwv, xim lo xim av (Nws yog qhov zoo dua saib lub npas ntawm ntsuab teb), qhov nruab nrab siv ntawm xim. Rau basketball - daj, txiv kab ntxwv, grey, xim av, hnyuv npab thiab polarising txheej.
Yuav ua li cas lub cim qhia tau?
Qhov tseem ceeb tshaj plaws hauv kev xaiv tsom iav yog qhov kev tiv thaiv UV. Ua tib zoo kawm cov ntawv sau rau ntawm daim ntawv lo, lub tshav pob, daim iav tsom iav. Lawv txhais tau hais tias: "UV-400" - cov tsom iav yuav tiv thaiv kom tsis txhob muaj kev tiv thaiv ultraviolet, cov ntawv sau "dlej" yuav tsis yog, vim tam sim no kev tiv thaiv los ntawm ultraviolet yog tsim los ntawm tus txheej txheem kev tsim khoom.
Ntawm lub shackle ntawm tsom iav yuav tsum muaj lub cim CE: hauv nws lub tsom ntawm cov iav hnub ci hauv tsib pawg (piv txwv li ntawm cov duab ntawm 0 mus rau 5), nyob ntawm seb pom qhov muag pom tau ntau npaum li cas - los ntawm sib dua kom tsaus nti. Lo ntsiab muag ntawm qib qis qeb 80 - 100%, thawj - 43 - 80%, qhov thib ob - 18 - 43%, qhov thib peb - 8 - 18% thiab 4 - 3 - 8% pom lub teeb. Zero thiab thawj cov npe hu ua cosmetic, lossis duab, tsom iav. Qhov thib ib yog tsim rau hnub tiv thaiv hauv ib lub nroog hauv nruab nrab tsam. Nyob rau hauv peb - koj muaj peev xwm ruaj ntseg mus rau hauv hiav txwv, thiab nyob rau hauv plaub - rau lub roob uas nrog snow. Lub hauv paus ntsiab lus yog qhov no: nws yog qhov zoo dua mus taug kev nyob ib ncig ntawm lub nroog nyob rau hauv lub puam tshaj vice versa.
Txawm nyob ntawm cov iav tsom kab yog cov cai ntawm tus qauv, ua tsaug uas koj tuaj yeem yuam kom muaj ib qho zoo tib yam los yog ib feem.
Yuav ua li cas yuav?
Mus rau qhov "zov rau ob lub qhov muag", nco ntsoov tias qhov zoo thiab qhov tsom iav tsis tuaj yeem tsis raug nqi tsawg dua $ 200 (tsis muaj luv nqi). Pheej yig fakes ntawm 20 - 80 dollars, uas yog muag hauv zaus thiab ntawm kev lag luam portable tais, tsis tsuas yog indecently sai tawg, kos, tab sis kuj ua rau lub qhov muag.
Yog li ntawd, koj txoj kev mus rau lub khw tshwj xeeb ntawm optics. Ib qho tseem ceeb tshaj: ua ntej yuav tsom iav koj yuav tsum tau muab (nyob rau hauv ib qho chaw lawv ua) kom tawm mus rau hauv txoj kev. Hauv chav tsev koj tuaj yeem tsis paub tseeb seb lawv puas haum koj. Ib qho ntxiv rau kev xaiv cov ntsiab lus zoo yuav yog qhov tseeb tias koj pom lawv nyob rau hauv lub hnub zoo dua thiab yooj yim dua tsis muaj lawv. Los ntawm txoj kev, nyob rau hauv txhua rooj plaub, tsis txhob saib lub hnub - tsuas yog nyob rau hauv cov khoom. Qhov no yog ib qho yuam kev ntawm cov neeg uas tshawb pom thaum yuav qhov khoom siv zoo li cas hauv qhov tsom iav. (Tsis txhob saib lub hnub zoo li ib daim duab los ntawm ib tug cartoon!). Txawm tias lens super-tsaus lens coatings tsis tag nrho koj ob lub qhov muag.
Zam caij nyhav
Thiab ntawm chav kawm, peb yuav tsum tsis txhob hnov qab tias tsom iav tsis yog tsuas yog kev tiv thaiv los ntawm ultraviolet hluav taws xob, tab sis kuj yog ib qho khoom siv zam. Yog li, nyob rau lub caij no, muaj cov yas ntsa loj rau hauv pem teb. Rau cov txiv neej - qauv xws li "aviator", rau cov poj niam - "dragonflies". Xim: dub, grey, xim av, tsaus liab. Rov qab nyob rau xyoo 2010, cov kev sib piv tau zoo heev. Piv txwv, tus ncej dub thiab cov xim lo ntsiab muag. Lub ntsiab lo ntsiab muag nrog lub gradient coloring, uas yog, los ntawm saum toj no ntau darkened tshaj los ntawm hauv qab no.