In daily life, many people need to rely on glasses to correct vision problems, but with the arrival of summer, the sun glare, sunglasses have become an essential single product to protect the eyes ...
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...
China
Relevant standards: mainly based on GB 10810.3-2006 “Glasses lenses and related glasses products Part 3: Transmission specifications and measurement methods” and GB/T 14214-2003 &...
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...
Glass lens
Refraction: The refractive index of glass is high, generally between 1.5-1.9. This makes the glass lens have a strong ability to refract light and can more accurately control the directi...
Sunglasses are a popular accessory that not only protect the eyes from harmful UV rays but also add a touch of style to any outfit. Acetate frames have become increasingly popular in the world of e...
