Flat glasses are also called flat glasses, that is, glasses without diopter. Compared with myopic frame glasses and sunglasses, their major feature is that they do not have the same myopia power as myopic frame glasses, or farsightedness, and no astigmatism. degree. Its greater function is to block wind and sand and to decorate. Some specially made flat mirrors can also prevent damage from ultraviolet or infrared rays. So what kind of glasses are two-tone flat glasses, let's take a look together below. What is a two-color flat mirror? A. Two-color flat mirror, as far as the lens material is concerned, because it is made of glass, there are two-color white mirrors, two-color color mirrors, two-color coated mirrors, and two-color crystal mirrors. But generally speaking, compared with ordinary flat mirrors, two-color flat mirrors have more than two colors, so they are more powerful in protecting the eyes. 2. Two-color flat mirror, as the name implies, refers to the use of rare precious metals on the inner and outer layers, and advanced coating technology to coat the inner and outer layers of the lens with an anti-reflective coating layer, so that the external glare can not harm the eyes healthy. At the same time, the two-color flat lens can also protect the eyes, care for the skin around the eyes, and prevent the birth of crow's feet and dark circles. 3. The two-color flat mirror has high light transmittance, high refractive index, blocking more than 95% of ultraviolet rays, and anti-radiation due to the multi-layer coating process design. Really get rid of the bad phenomena such as visual fatigue and impaired vision, and comprehensively care for the health of your eyes and vision, and ensure that long-term ultraviolet radiation will not cause cataracts, glaucoma and other eye diseases. Although the two-color flat mirror does not have the function of myopia, it can prevent the damage of ultraviolet, infrared, and various harmful glare to the eyes in a limited time. At the same time, it also has the function of anti-radiation, so it has won the love of many people.