Silver halide photochromic change technology: the photosensitizer silver halide (or other photosensitizers such as silver barium, copper halide and chromium halide, etc.) is added to the resin lens...
Product characteristic class
The principle and application of polarized sunglasses: mainly involves how the polarized lens filters the light in a specific direction, reduces glare, and the practica...
1.Wearing glasses can correct your vision
Myopia is caused by the fact that the distant light cannot be focused on the retina, causing distant objects to be unclear. However, by wearing a myopic le...
Feel with the eye
Clarity: After wearing glasses, under the normal eye distance, such as looking at an eye chart at 5 meters or a book or computer screen at 30-40 centimeters, you should be able to...
Choose the right product
Uv protection function: UV damage to children’s eyes is greater, to choose sunglasses that can effectively block UV, the label is usually marked with UV400 and other ...
When discussing the question of whether sunglasses are better polarized or unpolarized, we first need to clarify the core differences between the two and their applicability in different scenarios....
