SETO 1.56 Photochromic Flat top bifocal Lens HMC/SHMC
Specification
| 1.56 Photochromic Flat Top Bifocal lens | |
| Qauv: | 1.56 optical lens |
| Qhov Chaw Keeb Kwm: | Jiangsu, Suav teb |
| Hom Tshuaj: | SETO |
| Lenses Khoom: | Resin |
| Muaj nuj nqi | Photochromic & tiaj tus sab saum toj |
| Lenses Xim | Ntshiab |
| Refractive Index: | 1.56 ib |
| Txoj kab uas hla: | 70/28 hli |
| Abbe Tus nqi: | 39 |
| Specific Gravity: | 1.17 |
| Txheej Txheej: | SHMC |
| Txheej xim | Ntsuab |
| Lub zog ntau: | Sph: -2.00 ~ + 3.00 Ntxiv: +1.00 ~ + 3.00 |
Khoom nta
1) Lub lens bifocal yog dab tsi?
Bifocals yog lo ntsiab muag nrog ob lub zog kho qhov txawv.Bifocals feem ntau yog muab rau cov kws kho mob
uas yuav tsum tau kho rau myopia (zes pom) los yog hyperopia (farsightedness) nrog los yog tsis kho rau astigmatism (distorted tsis pom kev los ntawm irregularly zoo li lub lens los yog cornea).Lub hom phiaj tseem ceeb ntawm lub lens bifocal yog los muab qhov kev pom zoo kom pom tseeb ntawm qhov kev ncua deb thiab ze ze.
Feem ntau, koj saib thiab dhau ntawm qhov kev ncua deb ntawm lub lens thaum tsom mus rau cov ntsiab lus nyob deb, thiab koj
saib thiab dhau ntawm ntu bifocal ntawm lub lens thaum tsom rau kev nyeem cov khoom lossis cov khoom hauv 18
ntiv tes ntawm koj ob lub qhov muag.Nws feem ntau lees txais tias Benjamin Franklin tau tsim lub bifocal.Qhov feem ntau bifocal niaj hnub no yog Ncaj Sab saum toj 28 Bifocal uas muaj txoj kab ncaj nraim hla sab saum toj nrog lub vojvoog 28 hli.Muaj ntau ntau yam ntawm cov ncaj saum toj kawg nkaus bifocals muaj hnub no suav nrog: Ncaj Sab saum toj 25, Ncaj Sab saum toj 35, Ncaj Sab saum toj 45 thiab Tus Thawj Coj (Tus Thawj Franklin Seg) uas khiav qhov dav dav ntawm lub lens.
Ntxiv rau qhov ncaj ncaj bifocals muaj tag nrho puag ncig bifocals suav nrog Round 22, Round 24, Round 25
thiab Blended Round 28 (tsis muaj ntu kawg).
Qhov kom zoo dua rau cov ntu puag ncig yog tias tsis tshua muaj duab dhia raws li ib qho kev hloov ntawm qhov kev ncua deb mus rau qhov ze ntawm lub lens.
2)Cov yam ntxwv ntawm photochromic lo ntsiab muag
Photochromic lo ntsiab muag muaj nyob rau hauv yuav luag tag nrho cov ntaub ntawv lo ntsiab muag thiab cov qauv tsim, nrog rau kev ntsuas siab, bifocal thiab nce qib.Ib qho txiaj ntsig ntxiv ntawm photochromic lo ntsiab muag yog tias lawv thaiv koj ob lub qhov muag los ntawm 100 feem pua ntawm lub hnub teeb meem UVA thiab UVB rays.
Vim hais tias ib tug neeg lub neej raug rau lub hnub ci thiab UV hluav taws xob tau cuam tshuam nrog cataracts tom qab hauv lub neej, nws yog ib lub tswv yim zoo los xav txog photochromic lo ntsiab muag rau cov me nyuam cov tsom iav thiab tsom iav rau cov neeg laus.
3) Qhov txawv ntawm HC, HMC thiab SHC yog dab tsi?
| Txheej tawv | AR txheej / Hard txheej txheej | Super hydrophobic txheej |
| ua rau lub lens uncoated nyuaj thiab tsub kom lub abrasion kuj | tsub kom lub transmittance ntawm lub lens thiab txo cov reflections nto | ua rau lub lens waterproof, antistatic, anti plam thiab roj kuj |
Daim ntawv pov thawj
Peb lub Hoobkas
