01,ce yogphotochromic lens?
Cov lo ntsiab muag hloov xim (photochromic lo ntsiab muag) yog lo ntsiab muag uas hloov xim hauv kev teb rau cov kev hloov ntawm UV siv thiab kub.
Cov xim hloov xim yog tsim los ntawm kev ntxiv cov duab sib txawv (xws li nyiaj halide, nyiaj barium acid, tooj liab halide thiab chromium halide) rau cov lo ntsiab muag sib txawv.
Tom qab hloov xim tuaj yeem ua xim sib txawv, xws li: tshuaj yej, tshuaj yej grey, grey thiab lwm yam.
02, txheej txheem hloov xim
Tam sim no, muaj ob hom discoloration technology nyob rau hauv kev ua lag luam: zaj duab xis discoloration thiab substrate discoloration.
A. Zaj duab xis discoloration
Txau tus neeg saib xyuas cov xim rau ntawm qhov chaw ntawm lub lens, uas yog lub teeb tom qab xim ze li tsis muaj xim.
Qhov zoo: hloov xim sai, xim hloov ntau yam.
Disadvantages: Cov nyhuv discoloration yuav cuam tshuam los ntawm qhov kub thiab txias.
B. Substrate discoloration
Tus neeg sawv cev discoloration tau ntxiv ua ntej hauv kev ua cov khoom siv monomer ntawm lub lens.
Qhov zoo: Cov khoom lag luam ceev ceev, cov khoom siv tau zoo.
Qhov tsis zoo: Cov xim ntawm qhov nruab nrab thiab ntug ntawm qhov siab lo ntsiab muag yuav txawv, thiab qhov zoo nkauj tsis zoo li cov xim ntawm cov yeeb yaj kiab.
03. Kev hloov xim ntawm cov lo ntsiab muag uas tsis muaj xim
Qhov tsaus ntuj thiab ci ntsa iab ntawm cov xim hloov cov lo ntsiab muag yog feem ntau cuam tshuam nrog kev siv ntawm ultraviolet hluav taws xob, uas tseem cuam tshuam nrog ib puag ncig thiab lub caij nyoog.
Hnub ci tshav ntuj: huab cua thaum sawv ntxov tsis muaj huab tsawg thiab tsis muaj UV thaiv, yog liphotochromic lo ntsiab muagthaum sawv ntxov yuav tsaus dua.Thaum yav tsaus ntuj, lub teeb ultraviolet tsis muaj zog thiab lub lens xim yog sib dua.
Overcast: Txawm hais tias lub teeb ultraviolet tsis muaj zog nyob rau hauv ib puag ncig overcast, nws kuj tseem tuaj yeem ncav cuag hauv av, yog li lub lens discoloration tseem tuaj yeem ua lub luag haujlwm tiv thaiv qee yam, cov xim yuav yog lub teeb nyob rau hauv qhov chaw tshav ntuj.
Kub: Feem ntau, raws li qhov kub thiab txias, cov xim ntawm lub lens discolored yuav maj mam sib dua;Hloov pauv, raws li qhov kub thiab txias, chameleon maj mam darkens.
Ib puag ncig sab hauv tsev: Hauv chav tsev, lub lens hloov xim yuav tsis tshua hloov xim thiab nyob twj ywm pob tshab thiab tsis muaj xim, tab sis yog tias cuam tshuam los ntawm ib puag ncig lub teeb ci ultraviolet, nws tseem yuav muaj xim hloov pauv, uas plays lub luag haujlwm tiv thaiv ultraviolet txhua lub sijhawm.
04. Vim li cas thiaj xaiv cov xim hloov lo ntsiab muag?
Nrog rau myopia tus nqi nce, muaj qhov xav tau ntau ntxiv rau cov xim hloov xim, tshwj xeeb tshaj yog nyob rau lub caij nplooj ntoos hlav thiab lub caij ntuj sov, thaum lub hnub ci ci thiab UV rays hnyav heev, muaj feem cuam tshuam rau lub qhov muag.
Yog li, txoj hauv kev zoo tshaj plaws los tiv thaiv koj lub qhov muag los ntawm UV rays thaum tseem cuam tshuam nrog cov teeb meem refractive yog hnav tsom iav hloov xim nrog UV tiv thaiv (ib khub ntawm cov iav hloov xim nrog lub diopter).
05, qhov zoo ntawm cov xim hloov lo ntsiab muag
Daim iav ntau lub hom phiaj, tsis txhob xaiv thiab hnav teeb meem
Cov neeg pom luv luv yuav tsum hnav looj tsom iav dub yog tias lawv xav thaiv lub hnub ci ultraviolet rays tom qab lawv tau kho lawv lub qhov muag los ntawm refraction.
Cov looj tsom iav uas hloov xim yog looj tsom iav dub nrog diopter.Yog tias koj muaj cov xim hloov xim, koj tsis tas yuav muaj ob lub iav tsom iav thaum koj tawm mus.
Muaj zog shading, thaiv UV puas
Cov iav hloov xim tuaj yeem hloov xim raws li lub teeb thiab qhov kub thiab txias, thiab kho qhov kev xa tawm los ntawm lub lens hloov xim, kom tib neeg lub qhov muag tuaj yeem hloov pauv ntawm ib puag ncig lub teeb.
Tsis tas li ntawd, nws tuaj yeem nqus tau cov kab hluav taws xob ultraviolet uas tsim kev puas tsuaj rau tib neeg lub qhov muag, thaiv qhov ci ntsa iab thiab kev puas tsuaj los ntawm cov kab hluav taws xob ultraviolet, txo cov teeb pom kev zoo, ua kom pom kev nplij siab, txo qhov pom kev qaug zog, tiv thaiv lub qhov muag.
Ua kom zoo nkauj, zoo nkauj thiab ntuj
Cov xim hloov xim yog tsim rau sab hauv tsev, mus ncig, thiab sab nraum zoov ib puag ncig.Lawv tsis yog tsom iav xwb uas thaiv lub hnub, tab sis kuj yog myopia / farsightedness lo ntsiab muag uas tuaj yeem kho qhov muag pom.
Haum rau ntau hom kev tsim ntawm lub lens, zoo li stylish, kom tau raws li kev xav ntawm ntau yam zam, collocation thiab siv tau ob qho tib si.
Post lub sij hawm: Dec-05-2022