With the development of glasses, the appearance of glasses has become more and more beautiful, and the colors of glasses have become more colorful, making you more and more fashionable wearing glasses. Photochromic glasses are the resulting new glasses. The chromatic mirror can change different colors according to the intensity of sunlight.
Principle analysis of photochromic glasses
Also known as sun protection glasses.
It is mainly used in the open field, snow, and indoor strong light source workplaces to prevent damage to the eyes from sunlight, ultraviolet light and glare.
The lens is made of optical glass containing silver halide microcrystals. According to the principle of light-color interconversion reversible reaction, it can quickly darken under sunlight and ultraviolet light, completely absorb ultraviolet light, and absorb visible light neutrally; Quickly restore colorless and transparent. The photochromic properties of this lens are permanently reversible.
Photochromic glasses mainly change colors due to the intensity of light
Photochromic glasses mainly change colors due to the intensity of light. Generally, there are several colors such as tea, red, blue, gray, etc. The brightness of objects seen through photochromic glasses will be dim, but it will not affect its brightness. The original color is suitable for people who often need to work outdoors.
With the development of science and technology, people have invented a kind of glasses that integrates two functions - photochromic glasses.
When the glasses are exposed to strong light outdoors (or in the sun), the color of the lenses will gradually become darker, which can protect the glasses from strong light stimulation; when entering the room, the light will weaken and the color of the lenses will gradually become lighter, ensuring the normal observation of the scene. .
Photochromic photosensitive glasses will only change color when exposed to sunlight. In other cases, they will not change color indoors, so you can use them with confidence. You won't be able to see things clearly because of the dim light indoors. The photochromic myopia glasses are the same as ordinary myopia glasses, and there is no difference.
The benefits of wearing photochromic glasses
When people wear photochromic glasses from the sun to the room, the sudden change of light and color gives the eyes a feeling of fatigue. For people with high myopia, the ability of the eyes to adjust fatigue is relatively weak. Therefore, it is recommended that the eyes People with high degrees wear such glasses.
Since the added silver halide and copper oxide have been integrated with the optical glass, the photochromic glasses can be repeatedly discolored and used for a long time, which can not only protect the eyes from strong light stimulation, but also play a role in correcting vision.
In general, photochromic glasses have a certain impact on human eyes, so if you want to become more fashionable, you can choose to wear photochromic glasses.
Post time: Jun-08-2022