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1.59 PC Xiav txiav Bifocal Tsis pom Photochromic Grey HMC Optical lenses
Raws li lub npe qhia, daim iav bifocal muaj ob lub teeb ci. Feem ntau, nws yog siv los pom qhov deb, xws li tsav tsheb thiab taug kev; Cov hauv qab no yog los pom qhov ze ci, kom pom qhov ze, xws li nyeem ntawv, ua si xov tooj ntawm tes thiab lwm yam. Thaum lub lens bifocal nyuam qhuav tawm los, nws tau suav hais tias yog Txoj Moo Zoo ntawm myopia + presbyopia, tshem tawm qhov teeb meem ntawm kev xaiv thiab hnav ntau zaus, tab sis raws li tib neeg siv, nws pom tias qhov tsis zoo ntawm lub lens bifocal kuj muaj ntau.
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1.56 Xiav Txiav Bifocal Flat Top Photochromic Grey HMC Optical lenses
Cov tsom iav hloov xim tuaj yeem hloov xim nrog lub teeb, xws li xim av lossis kua mem hauv lub teeb ci sab nraum zoov, thiab pob tshab hauv tsev, tuaj yeem ua lub luag haujlwm tiv thaiv lub qhov muag, tshwj xeeb tshaj yog hauv kev tiv thaiv ultraviolet radiation thiab kev lim lub teeb xiav yog qhov pab tau zoo heev.
Rau cov neeg uas muaj myopia uas xav tau hnav tsom iav kom tawm mus, cov tsom iav hloov xim tuaj yeem txuag tau lub nra ntawm kev hloov cov tsom iav myopic thiab tsom iav, thiab tseem tuaj yeem daws qhov teeb meem uas qee tus poj niam tsis yooj yim nqa ntau lub tsom iav yam tsis muaj hnab ris.
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1.59 pc Xiav Txiav Photochromic Grey HMC Optical lenses
Peb txhua tus paub tias cov tsom iav ua lub luag haujlwm tseem ceeb hauv kev xaiv cov tsom iav uas tsim nyog, yog li thaum xaiv cov tsom iav, peb yuav tsum xaiv raws li peb txoj haujlwm, lub neej xav tau thiab qhov chaw ua haujlwm. Piv txwv li, cov tub ntxhais kawm, cov tsav tsheb, cov kws kho mob, thiab lwm yam, cov neeg zoo li no muaj qhov xav tau pom kev zoo rau xim thiab qhov deb.
Yog li ntawd, thaum xaiv cov iav lo ntsiab muag, yuav tsum xaiv cov iav tsis muaj xim thiab pob tshab.
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1.74 Xiav Txiav Tig Photochromic Grey HMC Optical lenses
Cov iav resin yog cov iav uas tsim los ntawm kev siv tshuaj lom neeg thiab txhuam nrog cov iav resin ua cov khoom siv raw. Cov iav resin muaj qhov zoo pom tseeb, nws qhov hnyav yog sib dua, hnav yooj yim dua; Qhov thib ob, cov iav resin muaj zog tiv taus kev cuam tshuam thiab tsis yooj yim tawg thiab muaj kev nyab xeeb dua; Tib lub sijhawm, cov iav resin kuj muaj lub teeb kis tau zoo; Tsis tas li ntawd, cov iav resin yooj yim rov ua dua kom tau raws li qhov xav tau tshwj xeeb. Thaum kawg, ua ke nrog kev tsim kho tshiab thiab kev txhim kho ntawm cov txheej txheem txheej, cov iav resin kuj muaj kev tiv thaiv kev hnav zoo, yog li lawv tau dhau los ua cov iav tseem ceeb hauv kev ua lag luam.
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1.71 Xiav Txiav Tig Photochromic Grey HMC Optical lenses
Qhov zoo ntawm cov substrate txiav txim siab qhov ruaj khov ntawm lub lens thiab qhov kev ntseeg siab ntawm cov txheej. Cov substrate zoo meej thiab ci, siv sijhawm ntev thiab tsis yooj yim rau daj; Thiab qee cov lens tsis siv ntev rau ntawm cov daj, lossis txawm tias txheej tawm. Lub lens zoo tsis muaj khawb, khawb, nto plaub, pitting, lub lens oblique kom tau raws li lub teeb pom kev zoo, qhov tiav yog siab heev. Tsis muaj qhov chaw, pob zeb, kab txaij, npuas, tawg hauv lub lens, thiab lub teeb ci.
Qhov siab dua ntawm qhov refractive index, qhov nyias dua lub lens, thiab qhov siab dua tus nqi.
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1.67 Xiav txiav Spin Photochromic Grey HMC Optical lenses
lub lens zoo, cov khoom siv yog qhov tseem ceeb
Cov khoom siv ntawm ib khub lens ua lub luag haujlwm tseem ceeb rau lawv txoj kev xa tawm, kev ruaj khov thiab Abbe tus lej (tus qauv zaj sawv ntawm qhov chaw ntawm lub lens). Nws tuaj yeem ua kev tshawb fawb thiab kev txhim kho tob tob ntawm cov ntaub ntawv, nrog rau qhov zoo uas tswj tau thiab kev ua tau zoo heev.
txheej zaj duab xis, ua rau lub lens yooj yim hnav
Cov txheej txheem zaj duab xis zoo ntawm lub lens tuaj yeem ua rau lub lens ua tau zoo dua, tsis yog tsuas yog kev ua tau zoo ntawm qhov muag xws li kev xa tawm tau zoo dua xwb, tab sis nws qhov nyuaj, kev hnav tsis kam, thiab kev ua haujlwm ntev kuj zoo dua.
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1.61 Xiav Txiav Tig Photochromic Grey HMC Optical lenses
Resin yog cov hydrocarbon (hydrocarbon) exudate los ntawm cov nroj tsuag, tshwj xeeb tshaj yog conifers, muaj nqis rau lwm cov qauv tshuaj tshwj xeeb. Resin muaj peev xwm muab faib ua ob hom ntuj resin thiab synthetic resin, thiab lub lens resin yog lub lens tsim los ntawm kev sib xyaw tshuaj lom neeg thiab polishing nrog resin ua cov khoom siv raw. Resin lens muaj qhov zoo pom tseeb, nws qhov hnyav yog sib dua, hnav yooj yim dua; Qhov thib ob, lub lens resin muaj zog tiv taus kev cuam tshuam thiab tsis yooj yim tawg thiab muaj kev nyab xeeb dua; Tib lub sijhawm, lub lens resin kuj muaj lub teeb kis tau zoo; Tsis tas li ntawd, cov lens resin yooj yim rov ua dua kom tau raws li qhov xav tau tshwj xeeb. Thaum kawg, ua ke nrog kev tsim kho tshiab thiab kev txhim kho ntawm cov txheej txheem txheej, cov lens resin kuj muaj kev tiv thaiv kev hnav zoo, yog li lawv tau dhau los ua lub ntsiab ntawm cov lens hauv kev ua lag luam.
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1.56 Semi-Tiav Ib Leeg Pom Kev Xiav Txiav Optical Lenses
Feem ntau, muaj rau hom refractive index ntawm cov iav resin: 1.50, 1.56, 1.60, 1.67, 1.71 thiab 1.74. Yog tias koj xav tau qhov refractive index siab dua, koj tsuas yog xav txog cov iav iav, uas muaj 1.80 thiab 1.90 los xaiv. Tsuas yog tias cov iav iav siv tsawg dua niaj hnub no, txawm hais tias cov ntawv iav kuj muaj cov refractive index qis dua, xws li 1.60 thiab 1.71.
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1.56 Xiav Txiav Photochromic Grey HMC Optical lenses
Lub lens yog ib yam khoom pob tshab uas muaj ib lossis ntau qhov chaw nkhaus ua los ntawm cov khoom siv kho qhov muag xws li iav lossis resin. Tom qab txhuam, nws feem ntau raug sib sau ua ke rau hauv cov tsom iav nrog lub thav iav kom kho tus neeg siv lub zeem muag thiab tau txais qhov pom tseeb.
Qhov tuab ntawm lub lens feem ntau nyob ntawm qhov refractive index thiab degree ntawm lub lens. Myopic lens nyias nyob hauv nruab nrab thiab tuab nyob ib ncig ntawm ntug, thaum hyperopic lens yog qhov sib txawv. Feem ntau qhov degree siab dua, lub lens tuab dua; Qhov refractive index siab dua, lub lens nyias dua.
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1.59 PC Progressive Photochromic Grey HMC Optical lenses
Lub lens hloov xim yog raws li lub hauv paus ntsiab lus ntawm photochromatic tautometry reversible, lub lens tuaj yeem tsaus sai sai hauv qab lub teeb muaj zog thiab lub teeb ultraviolet, thaiv lub teeb muaj zog thiab nqus lub teeb ultraviolet; Tom qab rov qab mus rau qhov tsaus ntuj, lub lens sai sai rov qab kho qhov tsis muaj xim thiab pob tshab kom ntseeg tau tias lub lens xa mus. Yog li ntawd, lub lens hloov xim yog qhov tsim nyog heev rau kev siv sab hauv tsev thiab sab nraum zoov, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig sab nraum zoov kom tiv thaiv lub teeb muaj zog, ultraviolet, glare thiab lwm yam kev puas tsuaj rau lub qhov muag, tsim nyog rau sab nraum zoov ntau dua, qhov muag rhiab rau lub teeb stimulation, txo qhov muag nkees. Tom qab hnav cov tsom iav hloov xim, koj yuav pom ntau dua ntuj thiab xis nyob hauv qab lub teeb muaj zog, zam kev txav mus los xws li squinting, thiab txo qhov nkees ntawm lub qhov muag thiab cov leeg nyob ib puag ncig lub qhov muag.
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1.56 Cov tsom iav Progressive Photochromic Grey HMC Optical
Cov tsom iav hloov xim uas hloov tau yog cov tsom iav txhua hnub, chaw ua haujlwm hauv tsev, kev ua si sab nraum zoov, tuaj yeem hnav tau. Tshwj xeeb tshaj yog mus so haujlwm, cov neeg ua haujlwm hnyav ntawm ntug hiav txwv, daus lossis thaj chaw sov, thaij duab, ncig tebchaws, cov neeg nyiam nuv ntses, cov neeg hnub nyoog nruab nrab thiab cov neeg laus lossis ntshai qhov muag, yuav tsum hnav tsom iav myopia, cov tub ntxhais hluas hauv tsev thiab sab nraum zoov feem ntau hloov pauv, kev nrhiav cov pab pawg hluas zam.
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1.56 Bifocal Round Top Photochromic Grey HMC Optical lenses
Cov tsom iav bifocal feem ntau yog rau cov neeg laus siv, thiab tuaj yeem pom kev ze thiab deb. Thaum tib neeg laus zuj zus, lawv qhov muag yuav poob qis thiab lawv lub qhov muag yuav laus zuj zus. Thiab cov tsom iav bifocal tuaj yeem pab cov neeg laus pom kev deb thiab pom kev ze.
Lub lens ob lub kuj hu ua bifocal lens, uas feem ntau suav nrog lub lens tiaj tus, lub lens puag ncig thiab lub lens tsis pom.
Cov tsom iav bifocal yuav tsum muaj xws li hyperopia diopter, myopia diopter lossis downlight. Qhov deb ntawm lub qhov muag, qhov ze ntawm lub qhov muag.
