CR39 looj tsom iav dub
Cov Lus Qhia Ntau Lawm
| Qhov Chaw Keeb Kwm: | Jiangsu | Hom Lub Npe: | BORIS |
| Qauv nab npawb: | Siab IndexLens | Lenses Khoom: | resin |
| Kev Pom Kev Zoo: | Ib Lub Zeem Muag | Txheej zaj duab xis: | UC/HC/HMC |
| Lenses Xim: | muaj yeeb yuj | Txheej Xim: | Ntsuab / Xiav |
| Index: | 1.49 | Specification Gravity: | 1.32 |
| Ntawv pov thawj: | CE/ISO9001 | Abbe Tus nqi: | 58 |
| Txoj kab uas hla: | 80/75/73/70 hli | Tsim: | Asperical |
Feem ntau, looj tsom iav dub muaj cov khoom hauv qab no:
1. Resin lens Lens khoom siv: Resin yog ib yam tshuaj uas muaj cov qauv phenolic. Nta: lub teeb yuag, kub tsis kam, muaj zog tiv thaiv, thiab tuaj yeem thaiv cov kab hluav taws xob ultraviolet.
2. Nylon lens Lens khoom: ua los ntawm nylon, nta: elasticity heev, zoo heev optical zoo, muaj zog cuam tshuam, feem ntau yog siv los tiv thaiv cov khoom.
3. Carbonated polyester lens (PC lens) cov khoom siv lens: muaj zog, tsis yooj yim rau tawg, cuam tshuam resistant, tshwj xeeb tshaj yog cov khoom siv lens rau cov tsom iav kev ua si, tus nqi yog siab dua li acrylic lo ntsiab muag.
4. Acrylic lens (AC lens) lens khoom: Nws muaj zoo heev toughness, lub teeb yuag, siab foundations thiab zoo pos huab.
Qhuav Taw Qhia
Ophthalmologists pom zoo tias koj yuav tsum hnav looj tsom iav kom tiv thaiv koj ob lub qhov muag; Qhov no yog vim peb lub qhov muag (lens) yog ib qho yooj yim heev rau nqus tau cov kab hluav taws xob ultraviolet, thiab kev puas tsuaj ntawm cov hluav taws xob ultraviolet muaj ob yam tseem ceeb:
1.Qhov kev puas tsuaj ntawm cov hluav taws xob ultraviolet yuav sib sau. Txij li thaum lub teeb ultraviolet yog qhov pom tsis pom, nws nyuaj rau tib neeg kom pom nws intuitively.
2.Qhov kev puas tsuaj ntawm ultraviolet rays rau lub qhov muag yog irreversible, uas yog, irreparable. Xws li: phais kab mob cataract tsuas yog hloov los ntawm cov lo ntsiab muag intraocular. Kev puas tsuaj rau lub qhov muag ntev tuaj yeem yooj yim ua rau lub ntsej muag thiab retina puas, pos huab ntawm lub lens kom txog rau thaum cataract tshwm sim, ua rau pom kev puas tsuaj mus tas li.
Txij li thaum qhov kev puas tsuaj ntawm ultraviolet rays rau lub qhov muag tsis pom, nws tsis tuaj yeem hnov tau tam sim ntawd. Yog tias koj tsis hnav tsom iav, koj tsis xis nyob tshwj xeeb. Nws tsuas yog txhais tau tias koj ob lub qhov muag tsis hnov mob rau lub teeb pom kev zoo (xws li dazzling glare, glare, thiab reflected light). , thiab tsis tuaj yeem zam kev puas tsuaj UV.
Puas yog cov tsom iav dub, qhov zoo dua qhov thaiv UV?
Tsis yog, lub luag haujlwm ntawm lub lens los thaiv cov kab hluav taws xob ultraviolet yog tias nws tau kho los ntawm cov txheej txheem tshwj xeeb (ntxiv UV hmoov) thaum lub sijhawm tsim khoom, kom lub lens tuaj yeem nqus cov teeb pom kev zoo hauv qab 400NM xws li ultraviolet rays thaum lub teeb nkag mus. Nws tsis muaj dab tsi ua nrog qhov tob ntawm zaj duab xis.
Txheej txheem khoom
