[China Glass Net] After being exposed to ultraviolet light or sunlight, the glass will absorb light in the visible spectrum and automatically change color. After the light stops, it will reversibly return to the original transparent state. The glass with this property is called photochromic. Glass (also known as photochromic glass or photo dimming glass). Since photochromic glass can be repeatedly discolored and faded for a long time without fatigue (aging), and has good mechanical properties, good chemical stability, simple preparation, and stable shape, the application range of photochromic glass is increasingly wide. It can also be used as a self-developing camera and hologram record in addition to the well-known sunglasses that make sun-proof sunlight and the windshield and window glass that automatically adjusts the light of cars, airplanes, ships, and buildings. medium. Its sensitivity to the level of light can be similar to that of ordinary photographic materials, but it also has the advantage of being easy to "control" (for example, heating to 100 degrees), and it can be used after wiping off. In addition, photochromic glass can also be used as optical switches, message storage and memory components, etc. Optical fiber panels made therefrom can be applied to computer information storage and display technologies.
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