1.56 Semi Finished Progressive yees duab grey Optical Lenses
Paub meej ntau lawm
Qhov Chaw Keeb Kwm: | Jiangsu | Hom Lub Npe: | BORIS |
Qauv nab npawb: | Photochromic Lens | Lenses Khoom: | TSI-55 |
Kev Pom Kev Zoo: | kev loj hlob lens | Txheej zaj duab xis: | HC/HMC/SHMC |
Lenses Xim: | Dawb (hauv tsev) | Txheej Xim: | Ntsuab / Xiav |
Index: | 1.56 ib | Specification Gravity: | 1.28 |
Ntawv pov thawj: | CE/ISO9001 | Abbe Tus nqi: | 35 |
Txoj kab uas hla: | 70/75 hli | Tsim: | Asperical |
Progressive multifocal lens
Yog ntau lub tsom iav tsom iav, lub ntsej muag lub ntsej muag curvature los ntawm sab saum toj mus rau hauv qab ua ntej tsis tu ncua, lub zog refractive los ntawm koog tsev kawm ntawv nyob rau sab sauv ntawm lub lens yog nyob deb nrog, maj, nce ntxiv mus, kom txog rau thaum yuav luag nyob rau hauv qab ntawm lub lens nrog cheeb tsam. mus txog tus lej ze li ntawm diopter, ob lub tsom iav tuaj yeem pom, qhov kev ncua deb tuaj yeem pom ze dua, koj tuaj yeem pom cov khoom nyob deb.Cov lo ntsiab muag zoo tau piav qhia tias yog "lens uas zoom," thiab ob lub tsom iav tuaj yeem siv los ua ib qho ntxiv ntawm cov tsom iav.Piv txwv li, tsim nyog rau cov menyuam kawm ntawv nyeem thiab sau cov tub ntxhais kawm siv lub lens (saib saib ntawm lub blackboard, nyeem cov phau ntawv, homework thiab lwm yam kev xav tau), haum rau cov neeg coob coob ntawm cov neeg dawb-caj dab lub zog tiv thaiv ntawm lub lens (kom hloov mus rau lub nyob deb, nruab nrab thiab ze qhov muag hloov, yooj yim rau kev ua haujlwm), yoog rau cov neeg laus thiab cov laus d pom kev ua kom pom tseeb (dawb kev cai nkhaus nto, zoo, nruab nrab, ze rau kev hloov, tsis kiv taub hau nthuav dav).
Qhuav Taw Qhia
Lub ntsiab refractive index ntawm lub lens muaj xws li: 1.56, 1.60, 1.67, 1.71, 1.74 thiab hais txog.Qhov siab dua qhov refractive index ntawm lub lens, qhov thinner thiab lighter lub lens.Txawm li cas los xij, qhov siab dua qhov refractive index ntawm lub lens yog, qhov zoo dua.Feem ntau, qhov siab dua qhov refractive index ntawm lub lens yog, qhov qis dua tus naj npawb Abbe thiab qhov pom tseeb dua qhov dispersion yog.