2022 Latest Design High Index Progressive Lenses - 1.56 Single Vision HMC – Boris
2022 Latest Design High Index Progressive Lenses - 1.56 Single Vision HMC – Boris Detail:
Production Details
| Place of Origin: | Jiangsu | Brand Name: | BORIS |
| Model Number: | Middle Index Lens | Lenses Material: | NK-55 |
| Vision Effect: | Single Vision | Coating Film: | UC/HC/HMC |
| Lenses Color: | White | Coating Color: | Green/Blue |
| Index: | 1.56 | Specific Gravity: | 1.28 |
| Certification: | CE/ISO9001 | Abbe Value: | 35 |
| Diameter: | 65/70/72mm | Design: | Aspherical |
Resin is a hydrocarbon (hydrocarbon) exudate from a variety of plants, especially conifers. Because of its special chemical structure and can be used as this latex paint and adhesive is valued. It’s a mixture of high molecular compounds, so it has different melting points. Resins can be divided into natural resins and synthetic resins. There are many kinds of resin, widely used in light industry and heavy industry, in daily life can also be seen, such as plastic, resin glasses, paint and so on. Resin lens is the lens after chemical processing and polishing with resin as raw material.
Production Introduction
1.56 is the refractive index of the lens
The higher the refractive index of the lens, the thinner the lens of the same degree. Most people use lenses with a refractive index of 1.56. If the degree is too high, the lenses with a refractive index of 1.56 will be very thick, so we should choose lenses with a larger refractive index. Coating is coating the lens with a layer of material that has different functions. some
Anti-ultraviolet film, some can play the effect of increasing the transmittance of the lens, is more clear glasses.
Generally, when selecting lenses, it is recommended that the refractive index should not be too high or too low, because lenses with inappropriate refractive index will increase the burden on patients’ eyes. Lenses with 1.56 have low refractive index, which is generally suitable for patients with low myopia or moderate myopia. It is generally recommended that people with moderate and low myopia choose lenses with refractive index between 1.50 and 1.60.
Refractive index is related to the thin thickness of the lens, but when selecting the lens, you should not only look at the refractive index, but also compare the specific gravity of the lens, light transmittance, UV resistance and other factors for comprehensive consideration.
Product Process
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Adhering for the theory of quality, services, performance and growth, we have received trusts and praises from domestic and worldwide shopper for 2022 Latest Design High Index Progressive Lenses - 1.56 Single Vision HMC – Boris , The product will supply to all over the world, such as: Swaziland, Indonesia, Bolivia, They're durable modeling and promoting effectively all over the world. Under no circumstances disappearing major functions in a quick time, it's a should for you of excellent good quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the company make a terrific efforts to expand its international trade, raise its company profit and raise its export scale. We're confident that we are going to possess a vibrant prospect and to be distributed all over the world within the years to come.
By Christine from Macedonia - 2018.06.28 19:27
As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
By Emma from Armenia - 2017.05.21 12:31
