Knowledge

There are several colors of color-changing lenses

The most common color of color-changing lenses on the market is tea and gray. Consumers can choose according to the function of the lens, the purpose of the lens, and their own col

How to distinguish the pros and cons of photochromic lenses

Since the added silver halide has been integrated with the optical material, the color-changing lens can change color repeatedly.

Precautions for the selection of color-changing lenses

The power difference between the two eyes is more than 100 degrees. It is recommended to choose a film-variable lens.

Why does the color-changing lens do not change color?

In layman's terms, the color-changing lens refers to an optical lens whose color changes after exposure to ultraviolet rays.

The advantages and disadvantages of film-chromic lenses and base-variable lenses

Color-changing lenses are becoming more and more popular among consumers in the market, but when choosing color-changing lenses.

The new technology of double-sided film color lens and its characteristics

The double-sided film color-changing lens is processed by the industry-leading nano-surface color-changing technology, and the color-changing effect is more uniform and lasting.

Classification and principle of color-changing lenses

Color-changing lenses are also called "light-sensing spectacle lenses" by some people.

Characteristics of color-changing lenses

The rate of discoloration of color-changing lenses is a key reference element for the purchase of color-changing lenses.

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Overview of flat glasses

Flat glasses are a kind of myopia glasses, which are non-diopter myopia glasses. You cannot correct myopia, hyperopia, astigmatism, pseudomyopia, presbyopia, or strabismus.