Introduction
A lot of people for the evaluation of the comptuer glasses lens, or don't care about, or look at the price. But actually, the parameters of the lens has a lot of choose and buy for our evaluation.
First, the parameters of the lens can be divided into three categories: material, surface type, membrane layer. Material is a lens of base material, and made the shape of the base material surface, after lens coating, improving performance.
Materials, including: abbe number, density, refractive index, uv protection, impact resistance, etc., among them, when foreigners choose lens "abbe number," the notice when this parameter is a lens clear level, the higher the abbe number more clearly. Refractive index is associated with the price and thickness of the lens, the higher the refractive index, the lens the thinner the beautiful, the price also is higher, but we need to note that the refractive index of the quality of price doesn't mean the lens imaging, because the higher the refractive index, abbe number this parameter will be reduced. That, in short, the choice of lenses, low degree to choose low refractive index computer eyewear, high number of select high refractive index.
Surface model is convenient, mainly includes: spherical and aspherical and double. Surface type mainly affect the authenticity of lens imaging, spherical aberration is big, the spherical aberration is small, double the aberration is smaller. But the corresponding price for the non - > aspherical > sphere. Now store aspherical popularization, the aspheric surface has become the mainstream market.
Membrane layer, and now the lens have film, coating were carried out, and only a handful of special requirements of the lens. Coating has many advantages: clear, by increasing the permeability of optical imaging lens and beautiful, computer glassesimprove the hardness, wearability, water resistant, oil resistant, easy to clean some film will do more prominent in certain aspects, but the price will be higher.
After the lens of choose and buy, we have many new "routine", choose the most suitable for our own pc glasses lenses!
First, the parameters of the lens can be divided into three categories: material, surface type, membrane layer. Material is a lens of base material, and made the shape of the base material surface, after lens coating, improving performance.
Materials, including: abbe number, density, refractive index, uv protection, impact resistance, etc., among them, when foreigners choose lens "abbe number," the notice when this parameter is a lens clear level, the higher the abbe number more clearly. Refractive index is associated with the price and thickness of the lens, the higher the refractive index, the lens the thinner the beautiful, the price also is higher, but we need to note that the refractive index of the quality of price doesn't mean the lens imaging, because the higher the refractive index, abbe number this parameter will be reduced. That, in short, the choice of lenses, low degree to choose low refractive index computer eyewear, high number of select high refractive index.
Surface model is convenient, mainly includes: spherical and aspherical and double. Surface type mainly affect the authenticity of lens imaging, spherical aberration is big, the spherical aberration is small, double the aberration is smaller. But the corresponding price for the non - > aspherical > sphere. Now store aspherical popularization, the aspheric surface has become the mainstream market.
Membrane layer, and now the lens have film, coating were carried out, and only a handful of special requirements of the lens. Coating has many advantages: clear, by increasing the permeability of optical imaging lens and beautiful, computer glassesimprove the hardness, wearability, water resistant, oil resistant, easy to clean some film will do more prominent in certain aspects, but the price will be higher.
After the lens of choose and buy, we have many new "routine", choose the most suitable for our own pc glasses lenses!
Contact Info
Address:
424242 Senter Rd. spc 2323
California
California 353535
United States
California
California 353535
United States
Tel:
5254353
Website:
http://www.uouocomputerglasses.com/
Hours of operation
| From | To | From | To | From | To | ||
|---|---|---|---|---|---|---|---|
| Monday | Open | ||||||
| Tuesday | Open | ||||||
| Wednesday | Open | ||||||
| Thursday | Open | ||||||
| Friday | Open | ||||||
| Saturday | Open | ||||||
| Sunday | Open | ||||||
