Smart sunglasses use a computer chip-controlled sunglass near me, which can automatically sense changes in the intensity of sunlight and react within 0.1 seconds. When entering darkness, they become flat mirrors, keeping the wearer in the most comfortable visual state and keeping the driver's friends safe forever.

Car drivers often wear a pair of black glasses while driving, which can protect their eyes from the prolonged stimulation of strong light when driving in the sun or snow.

However, when the car suddenly moves from bright to dark, wearing black glasses becomes a burden instead. It's really inconvenient to wear it later and pick it up later.

What is a good way to relieve the driver's distress? Wearing color-changing glasses is fine. In the sunlight, it is a pair of black sunglasses near me now, with thick black glass lenses blocking the dazzling light. In a room with soft light, it becomes as transparent and colorless as regular cheap eyeglasses near me.

The mystery of color-changing glasses lies in the glass. This special type of glass is called "photochromic" glass. During its manufacturing process, photosensitive substances such as silver chloride, silver bromide (collectively known as silver halide), and a small amount of copper oxide catalyst are pre-added. The change from colorless glasses to light gray or tea brown, and then from black glasses to regular glasses, is all the magic of silver halide.

In the glass of color changing glasses, there is a process of change that is very similar to the exposure imaging of photosensitive film. Silver halide decomposes into numerous black silver particles when exposed to light, which are evenly distributed in the glass. As a result, the glass lenses appear dim and block the passage of light, making them black glasses.