Old Drivers,These Glasses Cannot Be Placed in Cars During Summer
Scenario 1: Resin lenses
If the temperature rises and the vehicle is parked in sunlight, do not place the resin lenses inside the car, as high temperatures can cause damage to the resin lenses such as frame deformation, lens detachment, and affect visual health. Experiments have shown that when the outdoor temperature reaches 32 ℃, the temperature inside the car may be above 50 ℃. In this way, the lenses placed on the car are prone to damage. This also reminds everyone not to wear resin glasses to hot places, such as saunas. The structure of many resin lenses consists of three layers, each with a different expansion rate. If the temperature reaches 60 ℃, the lens will become blurry, such as appearing as a network of small grids.
Scenario 2: Sheet metal/injection molded mirror frame
Plate/resin frame is made of liquid material that is heated, cooled and solidified. When placed in a high temperature environment for a long time, the frame softens and causes deformation of the frame. The impact of frame deformation: 1. The optical center of the lens is offset, which cannot align with the pupil and causes changes in brightness, resulting in dizziness, nausea, and other symptoms; 2. Weight deviation causes uneven force on the nose bridge and ears, resulting in pressure marks on the nose bridge and ears; Wearing a deformed pair of glasses frame damages personal image
Scenario 3: Presbyopia glasses (including glasses with convex lens principle)
Presbyopia lenses are convex lenses that converge light. If the light is focused for a long time, it can cause the focal temperature to be too high. In addition to accelerating the aging of the interior, it can also damage the plastic trim inside the car and even lead to spontaneous combustion. Magnifying glasses are also prohibited from being placed on top of the center console in direct sunlight, as the principles of magnifying glasses and reading glasses are similar. When using a car, be careful when placing such objects that can focus light.
Our plastic frames and resin lenses are both products that are not resistant to high temperatures. In summer, the temperature inside the car is very high, so drivers should especially take care of your glasses and avoid leaving them in the car.
