CR39 Cov tsom iav dub
Cov Lus Qhia Txog Kev Tsim Khoom
| Qhov chaw keeb kwm: | Jiangsu | Lub Npe Hom: | BORIS |
| Tus Qauv Zauv: | Cov Ntawv Qhia SiabLub lens | Cov khoom siv lo ntsiab muag: | cov roj hmab |
| Cov Nyhuv Pom Kev: | Ib Lub Zeem Muag Xwb | Txheej Zaj Duab Xis: | UC/HC/HMC |
| Xim ntawm cov iav lo ntsiab muag: | muaj yeeb yuj | Xim txheej: | Ntsuab/Xiav |
| Cov Ntawv Qhia: | 1.49 | Lub Zog Tshwj Xeeb: | 1.32 |
| Daim Ntawv Pov Thawj: | CE/ISO9001 | Tus nqi ntawm Abbe: | 58 |
| Txoj kab uas hla: | 80/75/73/70 hli | Tsim: | Asperical |
Feem ntau, cov tsom iav dub muaj cov ntaub ntawv hauv qab no:
1. Lub lens resin Cov khoom siv lens: Resin yog ib yam tshuaj lom neeg uas muaj cov qauv phenolic. Cov yam ntxwv: lub teeb yuag, tiv taus kub siab, tiv taus kev cuam tshuam zoo, thiab tuaj yeem tiv thaiv cov duab ultraviolet.
2. Nylon lens Cov khoom siv lens: ua los ntawm nylon, nta: elasticity siab heev, zoo heev optical zoo, muaj zog cuam tshuam, feem ntau yog siv los ua cov khoom tiv thaiv.
3. Cov khoom siv lens carbonated polyester (PC lens): muaj zog, tsis yooj yim tawg, tiv taus kev cuam tshuam, cov khoom siv lens tshwj xeeb rau cov tsom iav kis las, tus nqi siab dua li cov iav acrylic.
4. Cov khoom siv lens acrylic (AC lens): Nws muaj kev tawv zoo heev, lub teeb yuag, kev pom kev siab thiab kev tiv thaiv pos huab zoo.
Kev Taw Qhia Txog Kev Tsim Khoom
Cov kws kho qhov muag pom zoo tias koj yuav tsum hnav tsom iav kom tiv thaiv koj lub qhov muag tas li; qhov no yog vim peb lub qhov muag (lub lens) yooj yim heev rau nqus cov duab ultraviolet, thiab kev puas tsuaj ntawm cov duab ultraviolet muaj ob yam ntxwv tseem ceeb:
1. Kev puas tsuaj ntawm cov teeb ultraviolet yuav sib sau ua ke. Vim tias lub teeb ultraviolet yog lub teeb uas tsis pom, nws nyuaj rau tib neeg pom nws intuitively.
2. Kev puas tsuaj ntawm cov teeb ultraviolet rau lub qhov muag yog qhov tsis tuaj yeem kho tau, uas yog, tsis tuaj yeem kho tau. Xws li: kev phais mob cataract tsuas yog hloov tau los ntawm cov iav tsom iav hauv qhov muag. Kev puas tsuaj rau lub qhov muag mus sij hawm ntev tuaj yeem ua rau lub qhov muag puas tsuaj rau lub cornea thiab retina, ua rau lub lens tsaus ntuj mus txog thaum muaj cataract, ua rau pom kev puas tsuaj mus tas li.
Vim tias qhov kev puas tsuaj ntawm cov duab ci ultraviolet rau lub qhov muag tsis pom, nws tsis tuaj yeem hnov tam sim ntawd. Yog tias koj tsis hnav tsom iav, koj tsis hnov qhov tsis xis nyob tshwj xeeb. Nws tsuas yog txhais tau tias koj ob lub qhov muag tsis rhiab heev rau lub teeb pom kev (xws li lub teeb ci ntsa iab, lub teeb ci ntsa iab, thiab lub teeb cuam tshuam). , thiab tsis tuaj yeem zam kev puas tsuaj UV.
Cov tsom iav dub tsaus dua, qhov cuam tshuam ntawm UV zoo dua?
Tsis yog, lub luag haujlwm ntawm lub lens los thaiv cov teeb ultraviolet yog tias nws raug kho los ntawm cov txheej txheem tshwj xeeb (ntxiv UV hmoov) thaum lub sijhawm tsim khoom, yog li lub lens tuaj yeem nqus cov teeb meem hauv qab 400NM xws li cov teeb ultraviolet thaum lub teeb nkag mus. Nws tsis muaj dab tsi ua rau qhov tob ntawm zaj duab xis.
Cov Txheej Txheem Khoom
