Knowledge

Please remember to check the precautions after the glasses are finished!

When you take off your glasses, and they should not be placed in the front windshield position of the car for fear of being exposed to the sun. Cannot be placed on the radiator. Do

Precautions for lens purchase

The material of a pair of lenses plays a decisive role in the light transmittance, durability and Abbe number (visual effect of the rainbow pattern on the lens surface) of the lens

Overview of lens coating

In order to obtain some new and excellent properties that are not originally available, the surface of the spectacle lens is coated with a certain thickness of single-layer or mult

The main use of color-changing lenses

Since the color-changing lens has many of the above-mentioned excellent properties, this lens has become a high-tech product integrating multiple functions.

Identification of color-changing lenses

The pros and cons of the color-changing lens are mainly determined by the speed of the lens and the service life of the color-changing agent.

The main performance of the color changing lens

In the absence of ultraviolet light, the transmittance of the lens is relatively high. The discoloration of the color changing lens is mainly driven by the ultraviolet light in the

Overview of color-changing lenses

A color-changing lens is a lens whose color changes with the change of external light. Under the sun, this kind of lens can quickly turn into a dark color.

Overview of color mirrors

A photochromic glass is a glass made of color-changing glass, which changes its color under the irradiation of light of an appropriate wavelength.

Why do color-changing lenses change color

Color-changing lenses are also called "photosensitive lenses". Because silver halide chemicals are added to the lenses.

Will myopia lens harm the eyes?

Myopia photochromic lenses, also called photochromic lenses, or photochromic lenses.

How to choose color-changing lenses

Human pupils can continuously adjust themselves with changes in ambient light, but when the light changes too suddenly, the eyes will feel discomfort, fatigue and soreness.

Basic principles of color-changing lenses

The color-changing lens is a kind of coloring agent added to the glass composition, which has selective absorption and transmission of light.