Sunglasses still need maintenance? Will it melt after exposure?
Although the frost has fallen, the fashion of sunglasses has never faded. Whether it is hot summer or autumn, sunglasses are standard accessories for travel, shopping, tourism, etc. They can effectively block ultraviolet rays and can also be matched with clothing to form a unique fashion style. It can be said to be fashionable and practical, so cool, why not do it? But although there are many people who wear glasses, few people pay attention to the maintenance of sunglasses.
After searching the Internet,Shako found that situations like "sunglasses in the car are damaged" are even common. Many car owners wear sunglasses when driving, and some even put their sunglasses behind the windshield. In order to wear it directly when driving, but after exposure to the sun, it is found that the sunglasses have varying degrees of damage.
Are the sunglasses that are used as a sun protection tool afraid of exposure?
The answer is yes.
As a daily wear product, sunglasses have the function of sun protection and anti-ultraviolet rays. It is not a problem to wear them normally outdoors, but if they are in a high temperature environment, the lenses of resin materials such as sunglasses and myopia are prone to damage. In the summer high temperature environment, the car is exposed to the sun for a long time, and the temperature inside the car can be as high as 60 ℃ if the door is closed. "The temperature under the windshield in the car, in the sauna room, etc. is very high. Under this environment, the lens is prone to surface cracks and stripes like water ripples. In severe cases, it may also cause deformation and lens film peeling. Circumstances, this has nothing to do with the quality of the glasses."
In other words, after the sunglasses are exposed to high temperature, the frame will be severely deformed and distorted. For some poor quality lenses, the film layer will be damaged after high temperature, which will directly lose the sun-shading function. And things like "sunglasses are gone in the car", although it is a small probability event, it may happen if you leave it in the car for a long time. Therefore, in order to avoid similar problems encountered by netizens in the opening article, it is best to wrap unused sunglasses and place them in a dark and dark place.
In fact, sunglasses also need maintenance. Sunglasses are maintained to better protect our eyes from harm. A pair of sunglasses that are often littered will become weaker over time. Not only will they not be able to resist ultraviolet rays, but they may also cause your eye health problems.
