Wenzhou Eugenia eyewear Hoobkas

Cov khoom zoo, cov kev pabcuam, yog tus thawjcoj hauv kev lag luam hauv laser!

Tsev > Exhibition > Ntsiab lus
Vertex sib txawv
- Apr 22, 2017 -

Cov tsom iav dub, cov cim vertex yuav tsum yog 0.00D, lens manufacturing deviation lossis lens thiab ncej sib dhos tsis sib dhos, uas yuav tsim cov qauv iav vertex

Kev sib txawv (uas yog, lossis muaj kev vertex zoo lossis tsis zoo), yog tias dhau ntawm qee qhov ntau, tus neeg hnav yuav hnov ​​zoo li deformation, loj tuaj yeem cuam tshuam tus neeg siv lub qhov muag pom kev. Ua raws li GB10810.1 "tsom iav qhov tsom qhov lens ib: 1" ib qho thiab ntau lo ntsiab muag "lo lus" national standard Table 1, kev vertex rau siab ntawm ± 0.12D; cylindrical vertex siab ntawm ± 0.09D.

Tug: Tsis muaj

Tom ntej: zoo dua