The most commonly used metal frame on eyeglass mart is characterized by being sturdy, lightweight, and aesthetically pleasing. Titanium is a type of metal listed separately because it is currently very popular.

Titanium is known as a space material, which is lightweight, corrosion-resistant, not prone to allergic reactions, not easy to fade, and not easy to deform. It has now become the mainstream material in the eyeglass mart.

A truly high-end sheet eyeglass frame not only adds points to everyone's fashion cultivation but also enhances their overall temperament!

The Abbe number is the dispersion coefficient, which is an important indicator for measuring the clarity of lens imaging. Usually expressed as the reciprocal of the dispersion coefficient, also known as the Abbe number.

The larger the Abbe number, the smaller the dispersion; conversely, the smaller the Abbe number, the greater the dispersion and the poorer the imaging clarity. The Abbe number of a lens is related to its refractive index. The higher the refractive index of the material, the more severe the dispersion, that is, the lower the Abbe number.

So, in terms of this single indicator, the lower the refractive index, the better. However, when fitting glasses, it is necessary to judge based on one's visual acuity, which is the most important and cannot be mechanically limited to the Abbe number.

In recent years, the anti-fouling ability has shifted from increasing hardness and transparency to increasing the smoothness of lenses to enhance their waterproof and oil proof capabilities.

UV-resistant lenses are also known as anti-UV lenses. It can completely absorb or reflect the most harmful ultraviolet rays to protect the eyes. The UV protection coefficient is represented by the UV value.