Sunglasses have been widely used in daily life, and there are many types of sunglasses available on the eyeglass mart. Should we choose dyeing, polarized light, or mirror surface? Or is it a color-change film?

Besides being equipped with UV protection, what are the characteristics of these sunglasses near me? Many people may have these questions.

Dyeing is a process based on formed lenses (referring to those that have been made into rough circular mirrors but have not yet been cut and installed on the frame): the dye is dispersed in a certain proportion into a solvent (dye solution), and the lens is immersed in the dye solution at a certain speed and frequency through a dyeing device. The dye gradually penetrates into the lens matrix, causing the color of the lens to darken.

Structurally, it contains various chromogenic groups that exhibit strong absorption within a specific range of visible spectra, resulting in various colors. Under suitable process parameters, sunglass near-me lenses can achieve specific uniform (solid tint, also known as solid tint) or gradient tint depths.

Compared to pure-colored lenses, gradient-dyed lenses exhibit a deep to light color depth distribution from top to bottom, similar to the commonly used gradient lens (GND) in landscape photography, aiming to achieve a visual experience of balanced brightness from the sky to the ground in the field of view when worn outdoors.

The color range of dyed sunglasses is wide, and the dyeing depth can cover a range from very light to very deep, suitable for wearing from indoor to extreme outdoor conditions.