Overview of flat glasses

Flat glasses are a kind of myopia glasses, which are non-diopter myopia glasses. You cannot correct myopia, hyperopia, astigmatism, pseudomyopia, presbyopia, or strabismus.  It has the functions of blocking wind and sand, blocking small insects and its decorative design, and some can also block the harm of ultraviolet or infrared induction to the eyes.

Flat glasses classified

In terms of the types of spectacle lens glass, bright white mirrors, color-changing mirrors, surface-coated mirrors, amethyst mirrors, Kesi mirrors, Kesai mirrors, etc. The quality of spectacle lenses is divided into three grades: high, medium, and low, or top grade, first grade, and second grade. The higher the quality, the stronger the clarity and the better the protection of eyesight.

Flat light color changing glasses counterfeit goods

The key to counterfeit, counterfeit, or counterfeit and inferior plain color glasses is imported well-known brands and high-quality Chinese products. The characteristics of this product are poor materials, different background colors, rough production and processing, low surface smoothness, and prohibition of brightness; the color of the raw materials is skewed, and there are more residues such as bubbles and urinary stones; under the in-situ stress meter, It can be found that there is a lot of ground stress; the packaging is not standard, and there is no compliance mark.