The Principle Of Color Changing Glasses

Some rheostats will turn black in the sun to protect the eyes, but will return to their original appearance in relatively dark places. This is actually the reason for the glass. The special glass of color-changing glasses is often widely used. During the manufacturing process, some photosensitive materials, such as silver chloride and silver halide, have been pre-mixed.

Therefore, the reaction of this kind of color-changing glasses to light changes greatly, which is very similar to the exposure imaging of photographic film, because the photolysis of silver halide can turn into a lot of black silver particles, and then evenly distributed in the glass, it will also make the whole lens look. It looks very dim, blocking the passage of light, that is, black sunglasses that people can see. Atoms similar to the decomposition of photographic film are always clustered together.

Color-changing glasses are good, but don't wear them for too long, because the pupils will be enlarged for a long time due to the weakening of visible light. Moreover, this kind of color-changing glasses cannot block the entry of ultraviolet rays. At that time, multiple ultraviolet rays can easily cause certain damage to the eyes, and even loss of vision.

One of the advantages of color changing glasses is that they can avoid ultraviolet radiation and are more suitable for direct sunlight. When driving in the sun, myopic drivers can still wear color-changing myopia glasses, which have a good shielding effect on the sun.

Some glasses can absorb most of the sun's ultraviolet rays, which can alleviate the symptoms of eye fatigue, but it still depends on the specific situation. Some color-changing glasses will pay more attention to fatigue. Comfortable and refreshing. For people who are prone to fatigue, you can choose to wear color-changing glasses.