In the discussion of “What is the optical refractive index of an eye lens?” When it comes to this problem, we first need to understand the physical concept of optical refractive index, ...
Beautiful eyes are an effective “weapon” for hunting the heterosexual. Women in the new era, and even men who are at the forefront of developing trends, already have a great need for ...
Optical glasses can alleviate visual fatigue to a certain extent, the following is a specific analysis from the perspective of different types of optical glasses:
Corrective optical glasses
Princip...
Optical property
Anti-ultraviolet ability: the eyes are exposed to sunlight for a long time during exercise, and ultraviolet rays are more harmful to the eyes. The UV400 logo of the sunglasses mean...
When choosing glasses for children, you need to pay attention to some details in terms of lenses, frames, optometry, etc. The following is a specific introduction:
Lens selection
Material: The pref...
The fashion industry is setting off a wave of retro round glasses, becoming a high-profile fashion item at the moment.
Round retro glasses with its classic shape and unique charm, quickly captured ...
