Kev sib piv ntawm Lenses nrog cov khoom sib txawv
Tsis muaj teeb meem looj tsom iav dub, tsom iav qhov muag lossis tsom iav Presbyopia, lawv tsis tuaj yeem sib cais los ntawm lo ntsiab muag. Qhov Zoo Ntawm Cov Lenses kuj ncaj qha txiav txim siab qhov zoo ntawm Ib khub Qhov Muag.
tshwj xeeb tshaj yog rau cov iav nruab nrab thiab siab kawg, Lenses tseem ceeb dua. Cia li xav, Yog tias Ib khub ntawm Cov Khaub Ncaws Zoo Tshaj Plaws, Cov Khaub Ncaws Hlau lossis titanium Eyewear tau sib phim nrog ib khub ntawm cov looj tsom iav tsis zoo, Nws puas tuaj yeem suav tias yog cov iav siab kawg? Qhov ntawd yog Bound To Poob Ntau
txo Nws Tus Nqi.
Dab tsi yog Cov Khoom Siv Thiab Cov Kev Xav Tau Ntawm Lenses?LensYuav tsum tau ua los ntawm cov ntaub ntawv pob tshab. Lawv cov yam ntxwv tseem ceeb suav nrog kev nyab xeeb, kev nplij siab, kev zoo nkauj thiab kev ua haujlwm zoo kho qhov muag. Lenses tuaj yeem muab faib ua cov khoom siv ntuj, cov khoom siv iav thiab cov khoom siv cob.
Thawj yog cov khoom siv ntuj tsim. Cov khoom siv ntuj feem ntau yog siv lead ua iav, uas yog av los ntawm Quartz Ore. Cov khoom xyaw tseem ceeb yog Silicon Dioxide, Ntshiab Crystal, thiab lwm yam.
Muaj ob qhov kev faib loj, ib qho yog xim tsis muaj xim, thiab qhov ntshiab ntawm Silicon Dioxide yog siab; Lwm qhov yog Tshuaj yej Coloured Lens (feem ntau hu ua Tea Crystal Lens). Vim tias nws muaj lwm cov ntsiab lus, nws nthuav tawm cov xim sib txawv, uas txo qhov kev sib kis ntawm cov teeb pom kev zoo thiab ua rau tus neeg photophobic xis hnav, yog li nws muaj lub tswv yim ntawm "kev kho qhov muag". Qhov zoo ntawm Crystal Mirror Hom yog tias cov khoom siv tawv thiab tsis yooj yim rau hnav; Qhov tsis zoo yog tias nws tsis tuaj yeem nqus tau qhov luv luv Ultraviolet Ray; Nws tsis tuaj yeem txo qhov Infrared Transmittance; Qhov ntom ntawm cov khoom tsis sib xws. Yog tias muaj impurities, kab txaij thiab npuas yuav tshwm sim, ua rau muaj kev cuam tshuam, uas yuav cuam tshuam rau lub zeem muag; Tsis tas li ntawd, hom khoom no tsis tshua muaj thiab nyuaj kom tau txais, thiab tus nqi kuj kim heev.
Qhov thib ob yog iav. Cov iav tsim nyog rau kev ua cov iav tsom iav yog cov iav kho qhov muag, thiab cov kev xav tau zoo yog nruj heev. Xws li Refractive Index, Dispersion, Transmissivity, thiab lwm yam.
Cov khoom tseem ceeb yog Silicon Dioxide, ua raws li Boron Trioxide thiab Phosphorus Pentoxide. Qhov zoo yog qhov zoo hardness, tsis phem dua li Crystal; Nws tuaj yeem ua xim tom qab sib xyaw nrog ntau yam oxides, uas tuaj yeem tsis tsuas yog txo lub teeb pom kev zoo, tab sis kuj nqus cov hluav taws xob tsis zoo xws li ultraviolet Ray thiab Infrared Ray. Muaj ntau qhov tsis zoo, thiab qhov sib npaug yog ob zaug ntawm cov khoom siv cob. Nrog rau qhov nce ntawm Refractive Index, Qhov tshwj xeeb lub ntiajteb txawj nqus nce pom tseeb, uas ua rau hnav tsis xis nyob; Kev cuam tshuam tsis zoo, kev puas tsuaj rau lub tshuab yog yooj yim ua rau qhov muag puas, yog li kev nyab xeeb tsis zoo.
Qhov thib peb yog Resin Materials. Lub ntsiab Cheebtsam yog Organic Matter, feem ntau suav nrog Carbon, Hydrogen, Nitrogen thiab Oxygen. Cov khoom siv cob siv los ua cov lo ntsiab muag yuav tsum tsis sib xws, pob tshab thiab tsis yooj yim deformed. Tam sim no, Cov Khoom Siv Khoom Siv Feem ntau yog raws li hauv qab no:
1 Polymethyl1 Methyl Acrylate, Kuj Paub Raws li Alec. Lub Refractive Index yog 1.49, Qhov Dispersion yog 58, Thiab Qhov Ntsuas Tshwj Xeeb yog 1.19. Nws muaj qhov zoo ntawm lub teeb yuag, 1/2 ntawm iav; Zoo Impact Resistance, Relatively Safe. Qhov tsis zoo yog tias nws yog cov khoom siv thermoplastic nrog kev solubility ntawm 75c. Nws yog Rhaub thiab yooj yim rau deform, ua rau kev hloov pauv diopter, tsis txaus tawv tawv thiab hnav tsis zoo.
2. Allyi Digluy Celcat Pob Txha (tseem hu ua Allyl Z-glycolide), Kuj Paub Raws li Columbia Resin, Kuj tseem hu ua Cr-39. Lub Refractive Index yog 1.4985, Qhov Dispersion yog 57.8, Thiab Qhov Ntsuas Tshwj Xeeb yog 1.32. Qhov zoo yog hnyav thiab teeb; Kev cuam tshuam zoo, muaj kev nyab xeeb zoo; Anti Ultraviolet Ray, uas tuaj yeem thaiv tag nrho cov kab hluav taws xob ultraviolet hauv qab 350nm; Yooj yim rau zas; Niaj hnub Pwm Technology, tuaj yeem ua ntau lawm. Cr39 yog ib qho ntawm cov khoom siv dav tshaj plaws. Nws yog dav siv nyob rau hauv daim iav iav, iav hlau thiab Horn iav.
3. Pc (polycarbonate). Nws yog Polymerized los ntawm Lub Nplhaib Carbonic Acid Nplhaib Thiab Lub Nplhaib Bisphenol A. Lub Zog Molecular Nyob nruab nrab ntawm 20000 thiab 38000, Thiab Lub Refractive Index yog 1.586 Ntawm 25c. Lenses ua los ntawm cov khoom no yog hu ua "chaw Lenses", uas muaj qhov zoo ntawm lub teeb yuag thiab yog sib dua li tsoos iav lo ntsiab muag
57 feem pua; Nws qhov cuam tshuam tsis zoo yog 60 npaug ntawm cov iav ntawv, uas muaj kev nyab xeeb zoo; Thaum Lub Thickness yog 2.5cm, Nws tuaj yeem siv los ua cov iav iav; Lub thickness yog nyias, sib npaug rau qhov tuab ntawm Cr - 39 Lens nrog Refractive Index ntawm 16. Qhov tsis zoo yog qhov hnav tsis zoo. Pc feem ntau yog siv rau cov iav yas, Tr90 iav thiab qee cov tsom iav ua si xws li Ski Goggles.
4. Nylon Lens. Pob tshab Polyamide, Cov Khoom Siv Ntawm Nylon Lens, Yog Ib Yam Tshiab Ntawm Polyamide. Los ntawm Kev Qhia Cov Pab Pawg Sab Hauv rau hauv Molecular Chain, Nws rhuav tshem cov Molecular Regularity thiab inhibits kev tsim cov muaju, thiaj li tau txais pob tshab Polyamide. Ntau Cov Kev Ua Si Hom Lub looj tsom iav thiab Cov Khoom kim heev Cov looj tsom iav dub siv Nylon
Kev ntxhib los mos ntawm Khoom siv. Nylon Lens muaj qhov toughness zoo heev thiab lub teeb pom kev zoo, tab sis nws tsis zoo rau Cr39. Nws yog tshwj xeeb tshaj yog haum rau ib nrab ntas thiab tsis muaj ncej. Nws yog tsim rau cov iav ua los ntawm ntau yam ntaub ntawv, xws li phaj iav, hlau iav thiab titanium ntas.
