What kind of glasses do students wear?
Note for glasses for students
Encyclopedia of Lens Knowledge
Classification of the lens
According to the optical design of the lens, it is divided into spherical surface and aspheric surface (clearer, easier and more natural).
According to the optical function of the lens, it can be divided into bioptical lens, tri-optical lens and progressive lens.
According to the appearance of the lens, it can be divided into ordinary white film, dyeing film, color changing film and polarizing film.
According to the surface treatment, there is no surface treatment, anti-wear film, anti-reflection film and anti-fouling film.
Lenses material: natural lenses (crystal lenses), glass lenses (Toric, Crox, Croxie, ultra-thin, 1.60 glass lenses).
Eyeglass frame knowledge encyclopedia
Structure: mirror ring, nose bridge, nose support, pile head, mirror foot, hinge, lock block.
species
According to the shape of the whole box, half box, frameless.
According to materials, metal frames (white copper, nickel alloy, high nickel alloy), stainless steel, pure titanium, titanium alloy, gold frame, etc.);Non-metal frames (sandalwood frames, animal bones, etc.).
specifications
Frame size is singular 33~59mm, even 34~60mm.
The size of the bridge of the nose is 13~21mm, and the number is 14~22mm.
The singular size of the mirror leg is 125~155mm, and the even size is 126~156mm
Online glasses matching
Know the size of the frame
① Use a ruler to measure the data of the eyeglass frame that is being worn.
② go to the optician's shop to try it on, and write down the size that suits you.
(3) Use a ruler to measure the approximate distance between the temples, and then refer to the inner width of the eyeglass frame.
Mike Optical Company
Email:017@mikeoptical.com
Cayla
3.30.2021
