Polarizers are manufactured according to the principle of polarization of light. We know that when the sun shines on the road or water, it directly irritates the eyes, making the eyes feel...
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...
The color depth of sunglasses and eye protection ability is not a simple positive correlation, the following is the specific analysis:
Sun glasses color action principle
The color of sunglasses is ...
These 6 steps are indispensable
Recently, many foreign friends have asked how to open an optical shop and how to reduce cost. For newbies, most of them just heard that the optical shop is more pro...
In modern society, glasses are not only a visual correction tool, but also a perfect combination of fashion and function. With the progress of science and technology, color-changing lenses, as a hi...
Wearing experience
Comfort: If the size of the sunglasses is too large, the glasses are easy to slide, frequent adjustment will bring a lot of inconvenience; If the size is too small, it will cause...
