1、 What are the benefits of PC lens panels?- Stress free: After years of research and experimentation, newer stress free PC lenses have been developed, with a center to edge distance of 2.5-5.0 cm, no rainbow phenomenon, and less susceptibility to visual fatigue and other side effects.- Firm coatin

The service life of the injection mold is affected by many factors, including the mold material, the frequency of use, the complexity of the product, the injection molding process parameters and daily maintenance. In general, if it is an injection mold made of high-quality steel, used and maintained

First of all, we must consider the shape, size and accuracy requirements of the product to ensure that the mold can accurately form products that meet the design specifications; The second is the mold parting surface design, to facilitate the product demoulding; The second is the design of the flow

In the production process of helmet lenses with degrees, the relevant standards and processes of optical matching should be strictly followed. First, accurate optometry to obtain accurate degrees, astigmatism and other parameters, and then in the lens grinding, processing, the use of high-precision

It depends on the severity of the scratch. Minor scratches can usually continue to be used if they do not affect the line of sight, but there may be certain interference with the visual effect, such as scattering in strong light. However, if the scratch is deep and the scope is large, it will